COVER MAINTENANCE MANUAL. Precision Air Conditioning 8kW - 101kW

Transcription

1 COVER INSTALLATION & MAINTENANCE MANUAL 8kW - 101kW

2 CUSTOMER SERVICES Legal Notices ABOUT AIREDALE About Airedale Products & Customer Services WARRANTY, COMMISSIONING & MAINTENANCE All AIAC products or parts (non consumable) supplied for installation within the UK mainland and commissioned by an AIAC engineer, carry a full Parts & Labour warranty for a period of 12 months from the date of commissioning or 18 months from the date of despatch, whichever is the sooner. Parts or Equipment supplied by AIAC for installation within the UK or for Export that are properly commissioned in accordance with AIAC standards and specification, not commissioned by an AIAC engineer; carry a 12 month warranty on non consumable Parts only from the date of commissioning or 18 months from the date of despatch, whichever is the sooner. Parts or equipment installed or commissioned not to acceptable AIAC standards or specification invalidate all warranty. CAUTION To further protect your investment in Airedale products, we have introduced Airedale Service, who can provide full commissioning services, comprehensive maintenance packages and service cover 24 hours a day, 365 days a year (UK mainland). For a free quotation contact Airedale Service or your local Sales Engineer. All Airedale products are designed in accordance with EU Directives regarding prevention of build up of water, associated with the risk of contaminants such as Legionella. Where applicable, effective removal of condensate is achieved by gradient drainage to outlets and where used, humidification systems produce sterile, non-toxic steam during normal operation. For effective prevention of such risk it is necessary that the equipment is maintained in accordance with Airedale recommendations. Warranty cover is not a substitute for Maintenance. Warranty cover is conditional to maintenance being carried out in accordance with the recommendations provided during the warranty period. Failure to have the maintenance procedures carried out will invalidate the warranty and any liabilities by Airedale International Air Conditioning Ltd. SPARES TRAINING A spares list for 1, 3 and 5 years will be supplied with every unit and is also available from our Spares department on request. As well as our comprehensive range of products, Airedale offers a modular range of Refrigeration and Air Conditioning Training courses, for further information please contact Airedale. CUSTOMER SERVICES For further assistance, please [email protected] or telephone: UK Sales Enquiries + 44 (0) [email protected] International Enquiries + 44 (0) [email protected] Spares Hot Line + 44 (0) [email protected] Airedale Service + 44 (0) [email protected] Technical Support + 44 (0) [email protected] Training Enquiries + 44 (0) [email protected] For information, visit us at our Web Site: AIAC Ltd endeavours to ensure that the information in this document is correct and fairly stated, but none of the statements are to be relied upon as a statement or representation of fact. AIAC Ltd does not accept liability for any error or omission, or for any reliance placed on the information contained in this document. The development of Airedale products and services is continuous and the information in this document may not be up to date. It is important to check the current position with AIAC Ltd at the address stated. This document is not part of a contract or licence unless expressly agreed. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or information storage and retrieval systems, for any purpose other than the purchaser s personal use, without the express written permission of AIAC Ltd Airedale International Air Conditioning Limited. All rights reserved. Printed in the UK. 2

3 CONTENTS Contents General Statement 4 Warranty 5 General Description 6 Standard Features... 7 Optional Extras... 8 Dimensional Data 9 Installation Data 13 Weights Lifting Positioning & Levelling Split Case Assembly Pipework Installation - Good Practices System Pipework Schematic Refrigerant Pipe Sizing Guide Connection Sizes Pressure Testing Evacuation Chilled Water System Water Supply - Humidifier Drain Pipework Electrical Data 36 Electrical Data - Downflow Electrical Data - Upflow Interconnecting Wiring Controls 59 Display Keypad Operation Setting up Viewing Unit Operating Status Alarm Handling Commissioning Procedure 64 Commissioning Checklist Refrigerant Charging Guide Oil Charging Guide Commissioning Data 68 Compressor Details Ethylene Glycol Correction Factors Operating Limits Fan Data - Downflow Fan Data - Upflow Fan Speed Adjustment Waterside Pressure Drop (kpa) Low Pressure Hot Water (Optional Extra) Condensate Pump (Optional Extra) Humidifier (Optional Extra) Units fitted with Thermostatic Expansion Valves (TEV) Units fitted with Electronic Expansion Valve (EEV) Troubleshooting 91 Maintenance 93 General Maintenance Drive Maintenance Parts Identification 98 3

4 General Statement IMPORTANT The information contained in this manual is critical to the correct operation and maintenance of the unit and should be read by all persons responsible for the installation, commissioning and maintenance of this Airedale unit. SAFETY SPARES The equipment has been designed and manufactured to meet international safety standards but, like any mechanical/electrical equipment, care must be taken if you are to obtain the best results. CAUTION 1 Installation, service and maintenance of Airedale equipment should only be carried out by technically trained competent personnel. CAUTION 2 When working with any air conditioning units ensure that the electrical isolator is switched off prior to servicing or repair work and that there is no power to any part of the equipment. 3 Also ensure that there are no other power feeds to the unit such as fire alarm circuits, BMS circuits etc 4 Electrical installation commissioning and maintenance work on this equipment should be undertaken by competent and trained personnel in accordance with local relevant standards and codes of practice. 5 Refrigerant used in this range of products is classified under the COSHH regulations as an irritant, with set Occupational Exposure Levels (OEL) for consideration if this plant is installed in confined or poorly ventilated areas. 6 A full hazard data sheet in accordance with COSHH regulations is available should this be required. For ease of identification when ordering spares or contacting Airedale about your unit, please quote the unit type, unit serial number and the date of manufacture, which can be found on the unit serial plate. A spares list for 1, 3 and 5 years will be supplied with every unit and is also available from our Spares department on request. SERIAL PLATE The serial plate can be located to the inside of the control panel door, refer to Parts Identification section. UK Office ( Unit/Gerät/Unite DF23AD Serial/Serie/Serie ( ) Manufactured/Hergestellt/Fabriqué 24/01/2007 Supply/Spannung/Alimentation 400 V 3 PH 50 Hz Fuse/Hauptsicherung/Fusibles Test Pressure Prüfdruck Pression d essai 25.0 A 27.0 BAR Refrigerant & Charge Kältemittel und Füllung Refrigerant & Charge Max. operating pressure Betriebsdruck (Maximal) Pression de marche (Maximum) N.B. No:

5 Warranty GENERAL WARRANTY IS ONLY VALID IN THE EVENT THAT: PROCEDURE To be read in conjunction with Airedale International Air Conditioning Ltd standard Conditions of Sale. The equipment carries Airedale s standard warranty for a period of 24 months from the date of despatch or of invoice which ever is the sooner in respect of non-consumable parts only and does not include for the cost of labour incurred during the investigation or replacement of a defective item. 1 The equipment is serviced & maintained by Airedale or an approved Airedale company in accordance with the Installation & Maintenance manual provided, during the Warranty Period. 2 Commissioning is carried out by Airedale or an approved Airedale company. 3 Commissioning documents have been completed and returned to Airedale within 28 days of the date of commissioning. 4 Replaced faulty parts have been returned to Airedale within 21days of replacement for evaluation. Any spare part supplied by Airedale under the warranty shall be warranted for the unexpired period of the warranty or 3 months from delivery whichever period is the longer, with the exception of compressors on which a further 12 months warranty is granted. When a component part fails, a replacement part should be obtained through our Spares department. If the part is considered to be under warranty, the following details are required to process this requirement. Full description of part required, including Airedale's part number, if known The original equipment serial number An appropriate purchase order number To be filled in and attached complete to faulty component Faulty Component Return Tag No CUSTOMER ADDRESS DATE AIREDALE U/No CUST. O/No Ex G/S No TYPE OF UNIT COMPONENT DESCRIPTION SERIAL No (where applicable) FAULTY DESCRIPTION ( Faulty or Defective not sufficient) DATE OF INVOICE DATE OF INSTALLATION DATE OF FAILURE Airedale International Air Conditioning Limited Leeds Road, Rawdon, Leeds LS19 6JY Tel: Fax: Original Equipment 2. Component (if different) CUSTOMER COPY A spares order will be raised under our warranty system and the replacement part will be despatched, usually within 24 hours should they be in stock. When replaced, the faulty part must be returned to Airedale with a suitably completed and securely attached "Faulty Component Return" (FCR) tag. FCR tags are available from Airedale and supplied with each Warranty order. On receipt of the faulty part, suitably tagged, Airedale will pass to its Warranty department, where it will be fully inspected and tested in order to identify the reason for failure, identifying at the same time whether warranty is justified or not. On completion of the investigation of the returned part, a full "Report on Goods Returned" will be issued. On occasion the release of this complete report may be delayed as component manufacturers become involved in the investigation. When warranty is allowed, a credit against the Warranty invoice will be raised. Should warranty be refused the Warranty invoice becomes payable on normal terms. EXCLUSIONS RETURNS ANALYSIS Warranty may be refused for the following reasons: Misapplication of product or component Incorrect site installation Incomplete commissioning documentation Inadequate site installation Inadequate site maintenance Damage caused by mishandling Replaced part being returned damaged without explanation Unnecessary delays incurred in return of defective component All faulty components returned under warranty are analysed on a monthly basis as a means of verifying component and product reliability as well as supplier performance. It is important that all component failures are reported correctly. 5

6 General Description UNIT IDENTIFICATION ALPHACOOL PRECISION AIR CONDITIONING RANGE DF Downflow Configuration V Upflow Configuration 9-95 Model Size (Expressed as Nominal Cooling in kw) A Air Cooled Remote Condensing Unit X Air Cooled Remote Condenser CW Chilled Water GFC Glycol Cooled with Free Cooling D Dual Circuit T Triple Circuit AT Controls Example DF31AD-AT INTRODUCTION CE DIRECTIVE Designed to provide environmental Precision air conditioning tolerances within the conditioned space, such as Telecommunication Facilities, Computer Rooms and Clean Rooms, the AlphaCool range is available with a choice of direct expansion air cooled and chilled water. Available in either Upflow or Downflow airflow configurations, the Downflow configured units having the added benefit of glycol cooled systems (models 65 to 90 only) and the range comprises 102 models. Full function units provide full control of temperature, humidity and filtration. A full range of Airedale air cooled condensing units and condensers are available with the direct expansion indoor units to provide matched system and Airedale air cooled water chillers are available to complement the chilled water indoor units. Free Cooling energy saving can be achieved using the chilled water unit matched with the Airedale Ultima Free Cooling Chiller. The unit is designed for the use of R407C; please refer to Airedale for alternative refrigerants. For full component and optional extras description, please refer to the Technical Manual. Airedale certify that the equipment detailed in this manual conforms with the following EC Directives: Electromagnetic Compatibility Directive (EMC) Low Voltage Directive (LVD) Machinery Directive (MD) Pressure Equipment Directive (PED) 89/336/EEC 73/23/EEC 89/392/EEC in the version 98/37/EC 97/23/EC To comply with these directives appropriate national & harmonised standards have been applied. These are listed on the Declaration of Conformity, supplied with each product. 6

7 General Description CONSTRUCTION Upflow Sizes 9-55 Upflow Size GFC Models (Downflow) STANDARD FEATURES Refrigeration A Models X Models GFC Models (Downflow) Unit cabinets are manufactured from galvanised sheet steel coated with epoxy baked powder paint to provide a durable finish. Standard unit colour is Light Grey (RAL 7035). Internal strength and rigidity is provided by a welded space frame constructed of channel profile folded steel. Cabinets are lined internally with fire resistant 20mm foam (UL94 V0) for thermal and acoustic insulation. The cabinet doors are full height, hinged and key lock secured. Hinge arrangement allows flexible door opening/removal for improved access. Rubberised door seals reduce sound breakout and eradicate leakage. For ease of maintenance, the front left hand control panel door may be safely opened while the unit is in operation. Unit design incorporates a series of M6/M8 fixings to the top face for offering up customer ductwork, please contact Airedale for further details. As standard the units are supplied with a louvred grille to the cabinet doors for front return air configuration in matching cabinet colour. As standard the units are supplied with an egg crate grille to the cabinet doors for front return air configuration in matching cabinet colour. Glycol Free Cooling (GFC) models also include an access panel to the left side of the unit. Refer to Optional Extras for Discharge and Return options. The unit features as standard: microprocessor controller with door mounted display keypad 3 port raise/lower type modulating mixing control valve to CW/GFC coils Direct Drive or Belt & Pulley Fans Centrifugal Fan & Motor Assemblies Airflow Switch Scroll Compressor EU4 filters Mains Electric Isolator Each refrigeration circuit features as standard: Externally equalised thermostatic expansion valve (TEV) Sight glass (loose) Filter drier (loose) (supplied with Airedale matched outdoor units) Holding charge of inert gas Externally equalised thermostatic expansion valve (TEV) Sight glass (loose) Filter drier (loose) (supplied with Airedale matched outdoor units) Low pressure switch - manual reset High pressure switch - manual reset Holding charge of inert gas Externally equalised thermostatic expansion valve (TEV) Sight glass Filter drier Low pressure switch - manual reset High pressure switch - manual reset Head Pressure Control (3 way mechanical) Pressure relief valve - including rupture disk and gauge Units are pre-charged with R407C refrigerant 7

8 General Description OPTIONAL EXTRAS Factory Fitted Loose Controls Electronic Expansion Valves (EEV) Head Pressure Control - Intelligent Humidifier - Intelligent Modulation Cleanable Humidifier Cylinder Electric Heating or Low Pressure Hot Water High Efficiency & Pre Filters Larger & Next Larger Fan Motor High Efficiency Fan Motors Fan & Motor Anti Vibration Mounts Fan & Motor Belt & Pulley Assembly (Sizes 9-19) Condensate Pump Firestat Discharge Air Configuration DF Models - Rear Discharge Air V Models - Top Rear Discharge Return Air Configuration V Models (A & CW 19-90) - Base Return Air V Models (A, X & CW)- Rear Return Air Egg Crate Grille (V 9-50 Models) Chilled Water Bypass Balancing Valves 2 Port Chilled Water Control Valve Oil Separators Sub Fusing (A & X Models) Threaded Connections - BSP male taper Take Apart Assembly Take Apart Lifting Jig Ceiling Duct Extension V - Straight DF - Straight & L Shaped Open & Enclosed Floorstand Discharge Air Plenum (V Models) Water Detector, probe or tape Smoke Detector Alternative Refrigerant (Outside EU) (supplied with holding charge of inert gas) BMS Interface Card LPHW Frost Protection (DX units with LPHW option) GSM Modem Kit 8

9 Dimensional Data DOWNFLOW IMPORTANT The following information is for general guidance; the certified drawings provided must be referred to for installation. Models: A, X or CW - Standard Airflow Configuration (mm) G E (1) (2) 800 F A B A B A B C D A B C D H x D x W A (3) B (3) C D E (3) + (4) F (3) G (5) H DF 9-16 A, X & CW mm 1940 x 800 x (258) 337 (311) (44) 295 (344) DF 19 A, X & CW mm 1940 x 800 x (596) 401 (477) (44) 348 (407) DF A, X & CW mm 1940 x 800 x (N/A) 477 (N/A) (N/A) 407 (N/A) DF A, X & CW mm 1940 x 800 x (N/A) 377 (N/A) (N/A) 407 (N/A) DF A, X & CW mm 1940 x 800 x (N/A) 477 (N/A) (N/A) 407 (N/A) DF 95 CW mm 1940 x 800 x (N/A) 477 (N/A) (N/A) 407 (N/A) Models: GFC - Standard Airflow Configuration (mm) (5) (1) (2) (6) (1) Standard Forward Airflow Direction. (2) Optional Reverse Airflow Direction. (3) Figures in brackets represent position of Fan Discharge Aperture when Larger Fan Motor Option is fitted. (4) Dimension will vary with some optional extras, please refer to Airedale. (5) Dimension represents the area in the base available for customer connections. (6) Water pipework connections on GFC models are in the GFC module section, please refer to Airedale for further details. 9

10 Dimensional Data DOWNFLOW 2 Way Optional Split Case (mm) A DF 9-16 A, X & CW mm N/A DF A, X & CW mm N/A DF AD, XD & CW mm 1450 DF AD, XD & CW mm 2000 DF AD, XD & CW mm 2550 DF 95 CW mm 2550 A = Way Optional Split Case - Models GFC Only (mm) (1) Split case assembly/disassembly instructions supplied with unit. 10

11 Dimensional Data UPFLOW IMPORTANT The following information is for general guidance; the certified drawings provided must be referred to for installation. Models: A, X or CW - Standard Airflow Configuration (mm) A B E A B A B C D A B C D 800 F (1) (2) (3) G G G G H x D x W A (4) B (4) C D E (4) & (5) F (4) G (6) H V 9-16 A, X & CW mm 1940 x 800 x (258) 337 (311) ( 82) 295 (344) V 19 A, X & CW mm 1940 x 800 x (258) 401 (477) (70) 348 (407) V A, X & CW mm 1940 x 800 x (N/A) 477 (N/A) (N/A) 407 (N/A) V A, X & CW mm 1940 x 800 x (N/A) 377 (N/A) (N/A) 407 (N/A) V A, X & CW mm 1940 x 800 x (N/A) 477 (N/A) (N/A) 407 (N/A) V 95 CW mm 1940 x 800 x (N/A) 477 (N/A) (N/A) 407 (N/A) (1) Standard Forward Airflow Direction. (2) Optional Reverse Airflow Direction. (3) Models sizes 9-55 have louvred front return grilles and Models have egg crate front return grilles as standard. (4) Figures in brackets represent position of Fan Discharge Aperture when Larger Fan Motor Option is fitted. (5) Dimension will vary with some optional extras, please refer to Airedale. (6) Dimension represents the area in the base available for customer connections. 11

12 Dimensional Data UPFLOW 2 Way Optional Split Case (mm) (1) A V 9-16 A, X & CW mm 900 V A, X & CW mm 1450 V AD, XD & CW mm 1450 V AD, XD & CW mm 2000 V AD, XD & CW mm 2550 V 95 CW mm 2550 A = 800 (1) Note additional height. (2) Split case assembly/disassembly instructions supplied with unit. Optional Discharge Air Plenum A = A V 9-23 A, X & CW mm 350 V AD, XD & CW mm 450 V AD, XD & CW mm 550 V 95 CW mm 550 Optional Rear Return Air Aperture 40 (2) 557 (657) (1) A V 9-16 A, X & CW mm 820 V A, X & CW mm 1370 V AD, XD & CW mm 1370 V AD, XD & CW mm 1920 V AD, XD & CW mm 2470 V 95 CW mm (2) 40 (2) A = 40 (2) (1) Figures in brackets represent split case optional dimensions only. (2) Dimensions represent the usable area for duct flange attachment. 12

13 Installation Data WEIGHTS Downflow Total Machine Split Module 1 Split Module 2 (Coil Section) (Fan Section) DF9A kg 276 N/A N/A DF13A kg 276 N/A N/A DF16A kg 276 N/A N/A DF19A kg 368 N/A N/A DF23A kg 341 N/A N/A DF25A kg 351 N/A N/A DF23AD kg DF31AD kg DF35AD kg DF41AD kg DF45AD kg DF50AD kg DF55AD kg DF65AD kg DF80AD kg DF90AD kg DF65AT kg DF80AT kg DF90AT kg DF9X kg 271 N/A N/A DF13X kg 276 N/A N/A DF16X kg 283 N/A N/A DF19X kg 402 N/A N/A DF23X kg 450 N/A N/A DF25X kg 468 N/A N/A DF23XD kg DF31XD kg DF35XD kg DF41XD kg DF45XD kg DF50XD kg DF55XD kg DF65XD kg DF80XD kg DF90XD kg DF9CW kg 235 N/A N/A DF13CW kg 235 N/A N/A DF16CW kg 235 N/A N/A DF19CW kg 312 N/A N/A DF23CW kg 384 N/A N/A DF25CW kg 393 N/A N/A DF31CW kg DF35CW kg DF41CW kg DF45CW kg DF50CW kg DF55CW kg DF65CW kg DF80CW kg DF90CW kg DF95CW kg (1) Total Machine Split Module 1 Split Module 2 Split Module 3 Split Module 4 DF65GFCT kg DF80GFCT kg DF90GFCT kg (1) Includes refrigerant charge, refer to Holding Charge on page

14 Installation Data WEIGHTS Upflow 1 PIECE DELIVERY SPLIT DELIVERY Total Machine Total Machine Split Module 1 Split Module 2 (Fan/Coil Section) (Filter Section) V9A kg V13A kg V16A kg V19A kg V23A kg V25A kg V23AD kg V31AD kg V35AD kg V41AD kg V45AD kg V50AD kg V55AD kg V65AD kg V80AD kg V90AD kg V9X kg V13X kg V16X kg V19X kg V23X kg V25X kg V23XD kg V31XD kg V35XD kg V41XD kg V45XD kg V50XD kg V55XD kg V65XD kg V80XD kg V90XD kg V9CW kg V13CW kg V16CW kg V19CW kg V23CW kg V25CW kg V31CW kg V35CW kg V41CW kg V45CW kg V50CW kg V55CW kg V65CW kg V80CW kg V90CW kg V95CW kg OPTIONAL PLENUM Total Plenum Weight V 9-16 A, X & CW kg 26 V A, X & CW kg 36 V AD, XD & CW kg 41 V AD, XD & CW kg 52 V AD, XD & CW kg 70 V 95 CW 70 14

15 Installation Data LIFTING IMPORTANT POSITIONING & LEVELLING CAUTION Whenever a unit is lifted, it should be from the base and, where possible, with all packing and protection in position. If any type of slinging is used, due care should be taken to ensure that the slings do not crush the casework. If the unit is dropped, it should immediately be checked for damage and reported to Airedale. If the unit is delivered in a split option, refer to Split Case Assembly section for details. The unit should be positioned on a stable and even base. With the use of a spirit level the base should be levelled to ensure good condensate removal and prevent door misalignment. Positioning the unit should be achieved by the use of rollers or skids. Crowbars must not be used as they impose a point load on the unit frame which may cause damage and distortion. Check the unit is as ordered. Discrepancies or transit damage should be reported to Airedale immediately. This small footprint unit is relatively tall and heavy. Care should be taken during handling and lifting, that the unit is well supported and properly balanced. Observe airflow and maintenance clearances Check all services are present and accessible Airedale will accept no responsibility for mishandling during the positioning of the equipment. 15

16 Installation Data POSITIONING DOWNFLOW Models: A, X & CW (2) C (1) A B Models: GFC (2) B E C D (1) A A B C - FLOORSTAND (4) D E DF 9-16 A, X & CW mm N/A N/A DF A, X & CW mm N/A N/A Min 350 DF A, X & CW mm N/A N/A (+ 50mm Feet DF A, X & CW mm Adjustable +/- 20mm) N/A N/A DF 95 CW mm N/A N/A DF GFC mm (1) Shown with optional open floor stand. (2) Minimum Ceiling Clearance, refer to table. (3) Shaded area indicates minimum service and maintenance requirements (4) Dimension C denotes recommended minimum floorstand height, refer to Airedale for special applications. Minimum Ceiling Clearance (2) When return air is limited to: Front Only Front & 1 Side Front & 2 Sides All Faces mm

17 Installation Data POSITIONING UPFLOW Models A, X & CW Standard Front Return (1) (2) The unit is designed for use with either ducted discharge or a plenum. If neither is used, protection from rotating parts in the form of a grille must be used on the discharge air outlet. Placing objects near an unguarded fan may cause injury. A Optional Base or Rear Return (1) (2) (6) A B C - FLOORSTAND (7) V 9-16 A, X & CW mm V A, X & CW mm V A, X & CW mm V A, X & CW mm V 95 CW mm (1) Reversed discharge air. (2) Forward discharge air. (3) Shaded area indicates minimum service and maintenance requirements (4) Shown with optional open floor stand. (5) Optional base return. (6) Optional rear return. (7) Dimension C denotes recommended minimum floorstand height, refer to Airedale for special applications. Min 350 (+ 50mm Feet Adjustable +/- 20mm) 17

18 Installation Data SPLIT CASE ASSEMBLY - DOWNFLOW A, X, (Sizes 23D - 90D & 65AT - 90AT) & CW (Sizes 23-90) Models Only General IMPORTANT Transit Brackets Lifting Jig (Optional Extra) Assembly Units may be delivered in 2 sections for ease of installation, refer to Dimensional Data. The unit is delivered in a pack as follows: Base Section 2 Upper Section 1 Lifting Jig (Optional Extra) Transit Brackets (disposable) M6 & M8 bolts 12 x 3mm Sealing Strip (Self Adhesive) Flat & Shake proof Washers Door Strut(s) Door(s) Connecting Pipework Electrical Connections Quick Release Spanner Ensure ONLY pieces with the corresponding unit numbers are matched together, see labels applied to side panel and packaging. Disposable transit brackets are fitted to both sections to increase structural rigidity during transport and lifting. Transit brackets are affixed using M6/M8. This 2 part assembly is recommended, to be used with lifting straps provided by the on site lifting specialist. CAUTION Transit Brackets and lifting jig MUST be removed before locating the 2 sections together A Fit Lifting Jig to Lower Section 2 B A A B Transit Brackets Lifting Holes Fix lifting jig brackets to 2 using M8 & M6 bolts provided, then slot lifting jig bars into place With jig in place, 2 can be moved to its installation position ready for assembly Remove lifting jig and put aside ready for use on upper section 2A Remove Transit Brackets from Lower Section 2 A A Attach Sealing Strip Place 12 x 3 mm sealing strip around outside top edge of 2. This will eradicate air leakage along the split line once the upper section is fitted. 18

19 Installation Data SPLIT CASE ASSEMBLY - DOWNFLOW A, X, (Sizes 23D - 90D & 65AT - 90AT) & CW (Sizes 23-90) Models Only 3A Fit Lifting Jig to Upper Section 1 & Lift on to Lower Section 2 1 A A Transit Brackets 2 Fit lifting jig as described in 1 Lift 1 onto 2, avoiding damage to the sealing strip Align bolt holes Remove lifting jig 4A Remove Transit Brackets from Upper Section 1 & Bolt 2 & 1 Together A A A Secure using M6 bolts Remove transit brackets as described in 2 Using M6 bolts, flat washers and shake proof washers provided, secure the 2 sections together If required, use silicone sealant to seal split line 5A Attach Left Hand Door Strut & Connecting Unit Pipework Together A B L R A B Door Strut Isolator Bar Take a universal strut and affix to left most side of unit frame & isolator bar Connect the internal pipework as follows: L R A & X models - CW models - Single Circuit: connect suction pipe using the quick release coupling. Dual circuit A & X models: Upto 80D require 2 suction pipes connecting, 65-90T require 3 suction pipes connecting using the quick release coupling. Connect water pipework with the compression fittings or union joints. If the humidifier option is chosen, refer to Humidifier (Optional Extra) on page 85 for reconnection details. Finally, connect all loose plastic drain hose(s). 19

20 Installation Data SPLIT CASE ASSEMBLY - DOWNFLOW A, X, (Sizes 23D - 90D & 65AT - 90AT) & CW (Sizes 23-90) Models Only 6A Reconnect Electrical Circuit The adjacent table details all those components that will require reconnecting to the control panel before the unit can operate. Refer to electrical drawings for detailed re-connection information. Only persons suitably trained and aware of local and national regulations should be involved with the commissioning of the electrical circuits. Unit Type A, X, & CW X CW Reconnect Fan/s Isolator Condensate Pump Display Panel Humidifier (If fitted) Compressors Actuators 7A Affix Door Strut(s) & Door (s) A B D C E A B C D E Door Struts Unit Doors Isolator Bar By-pass Door Control Panel Door DF23-31 DF41-50 DF65-90 Attach remaining Door Struts using M6 bolts provided Bolt leftmost Door Strut to Isolator Bar using M6 bolts provided Attach bottom Bypass Door using spring-loaded pins Hang the Control Panel door to Left most using the spring-loaded pins Connect the Controller plugs together Hang the remaining unit doors 8A Hand Over for Installation 20

21 Installation Data SPLIT CASE ASSEMBLY - DOWNFLOW GFC Models Only General IMPORTANT Units may be delivered in upto 4 pieces for ease of installation, depending on Optional Extras, please check at time of order. For dimensional details, refer to Dimensional Data. The unit is delivered in a pack as follows: Base Section 2 Upper Section 1 Compressor Module 3 Filter Module 4 Lifting Jig (Optional Extra) Transit Brackets (disposable) M6 & M8 bolts 12 x 3mm Sealing Strip (Self Adhesive) Flat & Shake proof Washers Door Strut(s) Door(s) Connecting Pipework Electrical Connections Quick Release Spanner Ensure ONLY pieces with the corresponding unit numbers are matched together, see labels applied to side panel and packaging Transit Brackets Disposable transit brackets are fitted to both sections to increase structural rigidity during transport and lifting. Transit brackets are affixed using M6/M8. Lifting Jig (Optional Extra) Split options This 2 part assembly is recommended, to be used with lifting straps provided by the on site lifting specialist. CAUTION Transit Brackets and lifting jig MUST be removed before locating the 2 sections together PIECE SPLIT OPTION 3 PIECE SPLIT OPTION 2 PIECE SPLIT OPTION 21

22 Installation Data SPLIT CASE ASSEMBLY - DOWNFLOW GFC Models Only Assembly 4 Piece Assembly 1B 2B Follow instructions 1A - 4A, described in Split Case Assembly Instructions A, X, & CW (23D-90T Models Only) Bolt Compressor 3 / Filter Module 4 to the combined 1 & 2 assembly & Attach Glycol Valve A 4 1 A Glycol Valve 3 2 Using M6 bolts, fix 3 to the combined 1 & 2 Attach Glycol Valve between 3 & 1 using compression fittings supplied Using M8 & M6 bolts provided, fix 4 to top of 1 & 3 Water Inlet Temperature Sensor (S2) The sensor is transported within 1. Insert the sensor bulb into the pocket provided within Glycol Valve assembly pipework and seal with heat sink paste. 3B Attached Left Hand Door Strut & Connecting Unit Pipework Together A B C L D R A Compressor Module Door (Hinged) B Door Seal C Isolator Bar D Control Wiring Access Take a universal strut and affix to left most side of unit frame & isolator bar Connect the internal pipework as follows: L R Connect the 3 suction pipes using the quick release coupling. Pass loose control wiring through the access hole. If the humidifier option is chosen, refer to Humidifier (Optional Extra) on page 85 for reconnection details. Finally, connect all loose plastic drain hose(s). 22

23 Installation Data SPLIT CASE ASSEMBLY - DOWNFLOW GFC Models Only 4B Reconnect Electrical Circuit The adjacent table details all those components that will require reconnecting to the control panel before the unit can operate. Refer to electrical drawings for detailed re-connection information. Only persons suitably trained and aware of local and national regulations should be involved with the commissioning of the electrical circuits. Fans Isolator Condensate Pump Display Panel Compressors Actuators Glycol Valve Glycol Valve Sensors Humidifier (If fitted) 5B 6A Affix Door Strut(s) & Door (s) Refer to instruction 7A. Hand Over for Installation 2 Piece Assembly All components fully fitted. Only Filter Module 4 requires attaching, refer to 2B. 3 Piece Assembly All pipe and electrical connections between sections 1 & 3 already assembled. Doors and door seals already fitted, refer to 2B & 3B. 23

24 Installation Data SPLIT CASE ASSEMBLY - UPFLOW A, X & CW Models General Units may be delivered in 2 sections for ease of installation, refer to Dimensional Data. The unit is delivered in a pack as follows: Base Section 2 Upper Section 1 Lifting Jig (Optional Extra) Transit Brackets (disposable) M6 & M8 bolts 12 x 3mm Sealing Strip (Self Adhesive) Flat & Shake proof Washers Door Strut(s) Door(s) Connecting Pipework Electrical Connections Quick Release Spanner 1 2 Transit Brackets Disposable transit brackets may be fitted to the base or upper sections to increase structural rigidity during transport and lifting. Transit brackets are affixed using M6/M8. Lifting Jig (Optional Extra) Assembly This 2 part assembly is recommended, to be used with lifting straps provided by the on site lifting specialist. CAUTION Transit Brackets and lifting jig MUST be removed before locating the 2 sections together. 1A Fit Lifting Jig to Lower Section 2 Standard Front Return Air Configuration Shown A A Lifting Holes Fix lifting jig brackets to 2 using M8 & M6 bolts provided, then slot lifting jig bars into place With jig in place, 2 can be moved to its installation position ready for assembly Remove lifting jig and put aside ready for use on upper section Optional Rear or Base Return Air Are provided with transit brackets which should be removed at this stage as shown below: A A Transit Brackets 24

25 Installation Data SPLIT CASE ASSEMBLY - UPFLOW A, X & CW Models 2A Attach sealing strip to lower Section 2 Place 12 x 3 mm sealing strip around outside top edge of 2. This will eradicate air leakage along the split line once the upper section is fitted. A A Attach Sealing Strip 3A Fit Lifting Jig to Upper Section 1 & Lift on to Lower Section 2 1 A A Transit Bracket 2 Fit lifting jig as described in 1 Lift 1 onto 2, avoiding damage to the sealing strip Align bolt holes Remove lifting jig 4A Remove Transit Brackets from Upper Section 1 & Bolt 2 & 1 Together A A A Secure using M6 bolts Remove transit brackets as described in 2 Using M6 bolts, flat washers and shake proof washers provided, secure the 2 sections together If required, use silicone sealant to seal split line 25

26 Installation Data SPLIT CASE ASSEMBLY - UPFLOW A, X & CW Models 5A Attach Left Hand Door Strut & Connecting Unit Pipework Together A B L R A B Door Strut Isolator Bar Take a universal strut and affix to left most side of unit frame, isolator bar & top air bypass blanking panel Connect the internal pipework as follows: L A & X models - Single Circuit: connect suction pipe using the quick release coupling. Dual circuit A & X models: require 2 suction pipes connecting & 2 liquid pipes connecting using the quick release coupling. CW models - Connect water pipework with the compression fittings or union joints. R If the humidifier option is chosen, refer to Humidifier (Optional Extra) on page 85 for reconnection details. Finally, connect all loose plastic drain hose(s). 6A Reconnect Electrical Circuit The adjacent table details all those components that will require reconnecting to the control panel before the unit can operate. Refer to electrical drawings for detailed re-connection information. Only persons suitably trained and aware of local and national regulations should be involved with the commissioning of the electrical circuits. Unit Type A, X, & CW X CW Reconnect Condensate Pump Display Panel Humidifier (If fitted) Compressors Actuators 7A Affix Door Strut(s) & Door (s) A B C D E F A B C D E F Door Struts Unit Doors Bypass Panel Isolator Bar By-pass door only on Rear or Base Return Options Control Panel V23-31 V41-50 V65-90 Attach remaining Door Struts using M6 bolts provided Bolt leftmost Door Strut to Isolator Bar & Air bypass panel using M6 bolts provided Attach bottom Bypass Door using spring-loaded pins (Rear & Base Return Air units Only) Hang the Control Panel door to Left most using the spring-loaded pins Connect the Controller plugs together Hang the remaining unit doors 8A Hand Over for Installation 26

27 t t Installation Data PIPEWORK INSTALLATION - GOOD PRACTICES Oil Traps For long vertical rises in both suction and discharge lines, it is essential that oil traps are located every 6m to ensure proper oil movement / entrapment. In addition there should be an oil trap at the exit of the air handling unit before a vertical riser is applied (refer to example below). Pipe Supports CAUTION Horizontal Sections The following table identifies the maximum distance between pipe supports on vertical and horizontal pipe runs. Pipe O/D (inches) Support distance (m) 3/8-5/ /8-1 1/ / All pipework should be clamped prior to insulation being applied (Suction Line). Clamping over insulation is not acceptable. It is good practice to ensure a slight gradient toward the compressor in the direction of the refrigerant flow for suction lines running horizontal. This assists oil return to the compressor. A gradient of approximately 1:200 (0.5%) shall be used. Condensing Unit above Air Handling Unit Condensing Unit below Air Handling Unit 6m Suction Line Liquid 1 U oil traps to be installed at 6m intervals on suction line only. 2 Insulate suction line only (liquid line not necessary). 3 Install a slight gradient in direction of refrigerant flow on suction line. (Liquid line can be strapped to insulated suction line). 4 Diagrams show single circuit only, multiple lines required for double / triple circuit units. Condenser above Air Handling Unit Condenser below Air Handling Unit 6m Discharge Line Liquid The pipe sizes (refer to Refrigerant Pipe Sizing Guide on page 32) and refrigerant charges (refer to Refrigerant Charging Guide on page 65) quoted are for guidance only. It is the responsibility of the installing contractor/site engineer to check the pipe sizes/refrigerant charge is correct for each system installation and application. Split systems may require additional oil which should be added to the low side of each compressor. Design should be in accordance with accepted refrigeration practice to ensure good oil return to the compressor(s) under all normal operating conditions. 27

28 Installation Data SYSTEM PIPEWORK SCHEMATIC Thermostatic Expansion Valve (TEV) KEY: LP HP LT ST TP TEV EEV Design should be in accordance with good refrigeration practice to ensure good oil return to the compressor under all normal operating conditions to prolong the life of your unit. Low Pressure Switch High Pressure Switch Liquid Line Pressure Transducer Suction Line Pressure Transducer Suction Line Temperature Probe Thermostatic Expansion Valve Electronic Expansion valve Discharge Line Liquid Line Schrader Point Sight Glass (Supplied Loose) Filter Drier (Supplied Loose) Shut Off Valve (Optional) (Supplied loose) - Condensers Condenser Fan & Motor Condenser Coil Oil Separators (Optional) Compressor TEV HP LP LP HP Customer Interconnecting Pipework Electronic Expansion Valve (EEV) EEV LT ST TP HP LP LT ST TP LP HP Customer Interconnecting Pipework 28

29 Installation Data SYSTEM PIPEWORK SCHEMATIC KEY: LP HP LT ST TP TEV EEV Design should be in accordance with good refrigeration practice to ensure good oil return to the compressor under all normal operating conditions to prolong the life of your unit. Low Pressure Switch High Pressure Switch Liquid Line Pressure Transducer Suction Line Pressure Transducer Suction Line Temperature Probe Thermostatic Expansion Valve Electronic Expansion valve Suction Line Liquid Line Schrader Point Sight Glass (Supplied Loose) Filter Drier (Supplied Loose) Shut Off Valve - Condensing Units Condensing Unit Fan & Motor Condensing Coil Compressor A MODELS (SHOWN WITH MATCHED CONDENSING UNITS) THERMOSTATIC EXPANSION VALVE (TEV) TEV HP LP Customer Interconnecting HP LP ELECTRONIC EXPANSION VALVE (EEV) LT ST TP LT ST TP EEV HP LP Customer Interconnecting HP LP 29

30 Installation Data SYSTEM PIPEWORK SCHEMATIC Key: Bypass Regulating Valve (Optional) 3 Port Modulating Valve Binder Test Point Regulating Valve/Metering Station (Supplied by Others) Supply Flow Return Flow Shut Off Valve (Supplied By Others) Customer Water Supply CW MODELS 30

31 Installation Data SYSTEM PIPEWORK SCHEMATIC GFC MODELS Thermostatic Expansion Valve (TEV) Key: LP HP PT TT TEV EEV BP Design should be in accordance with good refrigeration practice to ensure good oil return to the compressor under all normal operating conditions to prolong the life of your unit. Low Pressure Switch High Pressure Switch Pressure Transducer Temperature Transmitter Thermostatic Expansion Valve with Bulb Electronic Expansion Valve Binder Point Sight Glass Filter Drier 3 Port Modulating Valve Water Cooled Condenser Coil Liquid Receiver Water Filter (Supplied by Others) Ball Valve Supply Flow Return Flow Compressor BP BP BP HP LP TEV BP HP LP BP BP TEV BP BP BP BP HP LP BP TEV Electronic Expansion Valve (EEV) BP BP PT EEV BP HP LP BP HP LP BP BP PT TT PT TT PT EEV BP BP BP BP HP PT LP TT PT EEV BP 31

32 Installation Data REFRIGERANT PIPE SIZING GUIDE Pipe lengths calculated for Indoor unit with standard Outdoor unit match. For Outdoor unit connections sizes, please refer to relevant Installation Manual. Indoor Outdoor Indoor Unit Connection Sizes Equivalent Pipe Lengths with R407C (Optional R22) Equivalent Liquid Suction Discharge Liquid Suction Discharge Length A & X Models A Models X Models DF/V 9A CUS3 0-15m 3/8 3/4 5/8 1/2 3/4 1/2 DF/V 9X C m 1/2 7/8 5/8 DF/V 13A CUS4 0-15m 1/2 7/8 5/8 1/2 7/8 1/2 DF/V 13X C m 5/8 1 1/8 3/4 DF/V 16A CUS5 0-15m 1/2 7/8 5/8 1/2 7/8 5/8 DF/V 16X C m 5/8 1 1/8 3/4 DF/V 19A CUS6 0-15m 1/2 7/8 3/4 5/8 7/8 3/4 DF/V 19X C m 5/8 1 1/8 7/8 DF/V 23A CUS m 5/8 1 1/8 3/4 5/8 1 1/8 3/4 DF/V 23X C m 3/4 1 3/8 7/8 DF/V 25A CUS m 5/8 1 1/8 7/8 5/8 1 1/8 7/8 DF/V 25X C m 3/4 1 3/8 1 1/8 DF/V 23AD CUS4 x m 1/2 7/8 5/8 1/2 7/8 1/2 DF/V 23XD C15 x m 5/8 1 1/8 3/4 DF/V 31AD CUS5 x m 1/2 7/8 5/8 1/2 7/8 5/8 DF/V 31XD C20 x m 5/8 1 1/8 3/4 DF/V 35AD CUS5.5 x m 1/2 7/8 5/8 1/2 7/8 5/8 DF/V 35XD C25 x m 5/8 1 1/8 3/4 DF/V 41AD CUS6 x m 1/2 7/8 3/4 5/8 7/8 3/4 DF/V 41XD C25 x m 5/8 1 1/8 7/8 DF/V 45AD CUS6.5 x m 5/8 1 1/8 3/4 5/8 1 1/8 3/4 DF/V 45XD C35 x m 3/4 1 3/8 7/8 DF/V 50AD CUS7.5 x m 5/8 1 1/8 3/4 5/8 1 1/8 3/4 DF/V 50XD C35 x m 3/4 1 3/8 7/8 DF/V 55AD CUS8.5 x m 5/8 1 1/8 7/8" 5/8 1 1/8 3/4 DF/V 55XD C35 x m 3/4 1 3/8 1 1/8" DF/V 65AD CUS10 x m 5/8 1 1/8 7/8 5/8 1 1/8 3/4 DF/V 65XD C45 x m 3/4 1 3/8 1 1/8 DF/V 80AD CUS12 x m 5/8 1 3/8 7/8 7/8 1 1/8 7/8 DF/V 80XD C45 x m 3/4 1 5/8 1 1/8 DF/V 90AD CUS30D 0-15m 5/8 1 3/8 1 1/8 7/8 1 3/8 1 1/8 DF/V 90XD CS50 x m 7/8" 1 5/8" 1 3/8" 0-15m 1/2 7/8 N/A DF65AT CUS6 x 3 5/8 1 1/8 N/A 15-40m 5/8 1 1/8 N/A 0-15m 5/8 1 1/8 N/A DF80AT CUS7.5 x 3 5/8 1 1/8 N/A 15-40m 3/4 1 3/8 N/A 0-15m 5/8 1 3/8 N/A DF90AT CUS10 x 3 7/8 1 1/8 N/A 15-40m 3/4 1 5/8 N/A CONNECTION SIZES Water Pipework For air cooled model connections size, refer to above table. Standard Copper Plain Connection Optional Brass Male Taper Thread Connection Inlet Outlet Inlet Outlet DF/V 9CW - DF/V 16CW 28mm 28mm 1 1 DF/V 19CW - DF/V 35CW 35mm 35mm 1 1/4 1 1/4 DF/V 41CW - DF/V 45CW 42mm 42mm 1 1/2 1 1/2 DF/V 50CW - DF/V 95CW 54mm 54mm 2 2 DF 65GFCT - DF 80GFCT 42mm 42mm 1 1/2 1 1/2 DF90GFCT 54mm 54mm 2 2 CAUTION GFC Models only - It is recommended that a mesh or a mesh size of mm strainer is fitted to the glycol inlet to the unit, to prevent water borne particles fouling the water cooled condensers. Smaller mesh strainers will require greater cleaning and affect pressure drop. 32

33 Installation Data CONNECTION SIZES Options Inlet Outlet Low Pressure Hot Water Connection 22mm 22mm Humidifier Feed/Drain Condensate / Condensate Pump Condensate Drain Hose Condensate Pump Drain 3/4 BSPF Braided flexible hose / 19mm I/D hose 19mm I/D hose 10mm diameter S/Steel Stub Connection IMPORTANT PRESSURE TESTING CAUTION CAUTION RECORD The pipe sizes (refer to Refrigerant Pipe Sizing Guide on page 32) and refrigerant charges (refer to Refrigerant Charging Guide on page 65) quoted are for guidance only. It is the responsibility of the installing contractor/site engineer to check the pipe size/refrigerant charge is correct for each system installation and application. Split systems may require additional oil which should be added to the low side of each compressor. Design should be in accordance with accepted refrigeration practice to ensure good oil return to the compressor(s) under all normal operating conditions. In accordance with PED 97/23/EC, a strength test should be carried out in order to ensure that all interconnecting joints, pipework and components are sufficiently strong to cater for maximum permissible operating pressures. Once installation is completed, the high side of the system should be strength tested with dry nitrogen. To comply with the PED directive, the unit is factory pressure tested and recorded on the Test Certificate provided. SPLIT SYSTEMS: Ensure additional in line system components will withstand the intended SYSTEM PED recommendation test pressure. If not, we recommend isolation where possible, eg in line HP/LP switches, pressure transducer and compressor. Pressure testing can be dangerous if not properly conducted; personnel undertaking pressure testing MUST be technically competent and suitably qualified. Record the pressure over a minimum of 60 minutes to detect major leaks (a 24 hour period should preferably be allowed), on the Commissioning Sheet provided If a reduction in pressure is detected, trace the leak and repair before conducting a further pressure test and charging Record on commissioning sheet provided once completed. 33

34 Installation Data EVACUATION RECORD Evacuation for systems operating on R407C (or optional R22) refrigerant should be carried out as follows (for other refrigerants refer to Airedale for advice): 1 The procedure should be carried out using a high vacuum pump. The pump should be connected to the high and low pressure sides of the system via a gauge manifold fitted with compound gauges. A high vacuum gauge should be fitted to the system at the furthest point from the vacuum pump. 2 Triple evacuation should be used to ensure that all contaminants are removed or at least reduced to significantly low proportions. 3 The vacuum pump should be operated until a pressure of 1.5 torr (200 Pa) absolute pressure is reached, at which time the vacuum pump should be stopped and the vacuum broken with oxygen free Nitrogen until the pressure rises above zero. 4 The above operation should be repeated a second time. 5 The system should then be evacuated a third time but this time to 0.5 torr absolute pressure and broken with the correct refrigerant, until pressures equalise between the charging bottle and the System. Record on commissioning sheet provided once completed. CHILLED WATER SYSTEM The chilled water coil is factory pressure tested to 20Bar. The chilled water system maximum operating pressure is 10barg. For the valve working pressure, please contact Airedale. WATER SUPPLY - HUMIDIFIER (Optional Extra) IMPORTANT IMPORTANT The water supply should conform to Local Water Regulations and within the following guidelines: Supply water pressure between 1.0 Bar to 8.0 Bar. > 8.0 Bar, a pressure reducing valve should be fitted A minimum flow rate of 1.21 l/min The humidifier inlet is fitted with a braided flexible hose, having 3/4 BSPF connection. Ensure the union between the humidifier assembly and supply hose is fully tightened. Any looseness, misalignment or damage to the union can lead to water leakage. CAUTION It is recommended that a shut off valve and a mechanical strainer be fitted to the water supply prior to the humidifier assembly. 34

35 Installation Data DRAIN PIPEWORK CONDENSATE PUMP (Optional Extra) IMPORTANT Use only 10mm (3/8 ) copper tube when connecting the discharge stub to the condensate pump. The discharge line from the pump should rise no more than 6m vertically and no more than 8m in total length before being interrupted with a swan neck air break and tundish. Refer to the Condensate Pump (Optional Extra) on page 84 when calculating the total head required and factor into the drain pipework design. Suitable rodding positions should be incorporated particularly if the run is long. C B A D A Condensate Pump B Condensate pump discharge line; 10mm (3/8 ) copper tube; maximum vertical run 6m, maximum TOTAL run 8m C Swan Neck with Tundish D Drain line from Tundish, > 10mm (3/8 ) tube (MUST BE copper tube when coupled with humidifier drain), minimum fall 1 : 20 CONDENSATE & HUMIDIFIER (Optional Extra) All drain trays are fitted with their own trap assembly. Condensate drain may be run to waste via ordinary plastic waste pipe. Humidifier drain may be run to waste via pipe suitable for liquid temperatures of 100 C. All drain pipework operating under gravity should be sloped away from the equipment and the gradient should be made as steep as possible. Suitable rodding positions should be incorporated particularly if the run is long. WATER CONDUCTIVITY As standard the humidifier is fitted with the standard conductivity cylinder which covers the majority of water supplies. Low and High conductivity options can be specified at order (refer to Humidifier (Optional Extra) on page 85). SAFE OPERATION OF HUMIDIFIER CAUTION To protect the humidifier bottle from dangerous pressures in event of the steam supply pipe becoming blocked, a tundish is installed between the water inlet solenoid and the cylinder to act as a reservoir and to feed water to the humidifier inlet manifold as required. An overflow weir is incorporated in the common fill/drain tundish. Any pressure build up in the cylinder would be allowed to vent through the tundish to atmosphere. It is MOST IMPORTANT that the steam distribution pipe is not damaged or kinked at any time to avoid the risk of unacceptably high pressure building up in the electrode bottle. 35

36 Electrical Data IMPORTANT The following information is for general guidance; the certified drawings provided must be referred to for installation. GENERAL Once the refrigeration pipework is complete the electrical supply can be connected by routing the cable through the appropriate casing hole and connecting the cables as per the wiring diagram supplied with each unit A fused and isolated electrical supply of the appropriate rating should be installed As standard the equipment is designed for 230V, 1 Phase, 50Hz or 400V, 3 Phase, 4 wire 50Hz to all relevant IEE regulations, British standards and IEC requirements All mains and interconnecting wiring should be carried out to National and Local codes Wires should be capable of carrying the maximum load current under non-fault conditions at the stipulated voltage Avoid large voltage drops on cable runs, particularly low voltage wiring Should there be a separate supply for each unit, a control neutral must be fitted between the indoor and outdoor units CAUTION Each unit requires an independently fused and isolated power supply ELECTRICAL DATA - DOWNFLOW A Models Single Circuit DF9A DF13A DF16A DF19A DF23A DF25A A Model - Matched Condensing Unit CUS3 CUS4 CUS5 CUS6 CUS7.5 CUS8.5 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x x x 1.50 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x x x x 2.20 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x x x x x 2.20 Full Load Amps A Locked Rotor Amps A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw N/A 1 x x x x x 3.00 Full Load Amps A N/A Locked Rotor Amps A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. 36

37 Electrical Data ELECTRICAL DATA - DOWNFLOW A Models Dual Circuit DF23AD DF31AD DF35AD DF41AD DF45AD A Model - Matched Condensing Unit CUS4 x 2 CUS5 x 2 CUS5.5 x 2 CUS6 x 2 CUS6.5 x 2 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x x 2.2 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x x x 2.2 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x 4.00 N/A 2 x x 3.0 Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x 2.2 N/A N/A 2 x x 4.0 Full Load Amps A 4.64 N/A N/A Locked Rotor Amps A 32.5 N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. 37

38 Electrical Data ELECTRICAL DATA - DOWNFLOW A Models Dual Circuit DF50AD DF55AD DF65AD DF80AD DF90AD A Model - Matched Condensing Unit CUS7.5 x 2 CUS8.5 x 2 CUS10 x 2 CUS12 x 2 (4) CUS30D x 1 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x x x 5.5 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x x x x x 5.5 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x x x 5.5 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x 4.0 N/A 2 x 4.0 N/A N/A Full Load Amps A 8.12 N/A 8.12 N/A N/A Locked Rotor Amps A 60.9 N/A 60.9 N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. (4) Unit cannot be sub fused. 38

39 Electrical Data ELECTRICAL DATA - DOWNFLOW A Models Triple Circuit DF65AT DF80AT DF90AT A Model - Matched Condensing Unit CUS6 x 3 CUS7.5 x 3 CUS10 x 3 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x 5.5 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x x x 5.5 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x 5.5 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x 4.0 N/A N/A Full Load Amps A 8.12 N/A N/A Locked Rotor Amps A 60.9 N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) For products that are sub-fused please contact Airedale for electrical loadings. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. 39

40 Electrical Data ELECTRICAL DATA - DOWNFLOW X Models Single Circuit DF9X DF13X DF16X DF19X DF23X DF25X X Model - Matched Condensers C11 C15 C20 C25 C35 C45 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x x x 1.50 Full Load Amps A Locked Rotor Amps A Compressor - Per Compressor Quantity / Motor Size kw 1 x x x x x x 8.5 Nominal Run Amps A Locked Rotor Amps A Type of Start Direct On Line Oil Sump Heater W N/A N/A N/A N/A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x x x x 2.20 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x x x x x 2.20 Full Load Amps A Locked Rotor Amps A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw N/A N/A 1 x x x x 3.00 Full Load Amps A N/A N/A Locked Rotor Amps A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. 40

41 Electrical Data ELECTRICAL DATA - DOWNFLOW X Models Dual Circuit DF23XD DF31XD DF35XD DF41XD DF45XD X Model - Matched Condensers C15 x 2 C20 x 2 C25 x 2 C25 x 2 C35 x 2 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x x 2.2 Full Load Amps A Locked Rotor Amps A Compressor - Per Compressor Quantity / Motor Size kw 2 x x x x x 6.6 Nominal Run Amps A Locked Rotor Amps A Type of Start Direct On Line Oil Sump Heater W N/A N/A N/A N/A N/A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x 3.0 N/A 2 x x 2.2 Full Load Amps A N/A Locked Rotor Amps A 1 x N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x 4.0 N/A 2 x x 3.0 Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x 2.2 N/A N/A 2 x x 4.0 Full Load Amps A 4.64 N/A N/A Locked Rotor Amps A 32.5 N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Values given for non sub fused products, for sub-fused values, please contact Airedale. 41

42 Electrical Data ELECTRICAL DATA - DOWNFLOW X Models Dual Circuit DF50XD DF55XD DF65XD DF80XD DF90XD X Model - Matched Condensers C35 x 2 C35 x 2 C45 x 2 C45 x 2 CS50 x 2 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x x x 5.5 Full Load Amps A Locked Rotor Amps A Compressor - Per Compressor Quantity / Motor Size kw 2 x x x x x 13.6 Nominal Run Amps A Locked Rotor Amps A Type of Start Direct On Line Oil Sump Heater W OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x x x x x 5.5 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x x x 5.5 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x 4.0 N/A 2 x 4.0 N/A N/A Full Load Amps A 8.12 N/A 8.12 N/A N/A Locked Rotor Amps A 60.9 N/A 60.9 N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Values given for non sub fused products, for sub-fused values, please contact Airedale. 42

43 Electrical Data ELECTRICAL DATA - DOWNFLOW CW Models DF9CW DF13CW DF16CW DF19CW Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x 0.74 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x x 1.10 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x x x 1.10 Full Load Amps A Locked Rotor Amps A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw N/A 1 x x x 1.50 Full Load Amps A N/A Locked Rotor Amps A N/A DF23CW DF25CW DF31CW DF35CW Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x 4.0 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x 3.0 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x x 4.0 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x 3.0 N/A N/A Full Load Amps A N/A N/A Locked Rotor Amps A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. 43

44 Electrical Data ELECTRICAL DATA - DOWNFLOW CW Models DF41CW DF45CW DF50CW DF55CW Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x x 3.0 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x x x x 4.0 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x x x 4.0 Full Load Amps A Locked Rotor Amps A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x x 4.0 N/A Full Load Amps A N/A Locked Rotor Amps A N/A DF65CW DF80CW DF90CW DF95CW Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x x 5.5 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x x x x 5.5 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x 5.5 N/A N/A Full Load Amps A N/A N/A Locked Rotor Amps A N/A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x 4.0 N/A N/A N/A Full Load Amps A 8.12 N/A N/A N/A Locked Rotor Amps A 60.9 N/A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. 44

45 Electrical Data ELECTRICAL DATA - DOWNFLOW GFC Models DF65GFCT DF80GFCT DF90GFCT Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x 5.5 Full Load Amps A Locked Rotor Amps A Compressor - Per Compressor Quantity / Motor Size kw 3 x x x 9.7 Nominal Run Amps A Locked Rotor Amps A Type of Start Direct On Line Oil Sump Heater W N/A N/A N/A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Capacity kg 2 x x 5.5 N/A Rating kw N/A Full Load Amps A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x 5.5 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw N/A N/A N/A Full Load Amps A N/A N/A N/A Locked Rotor Amps A N/A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. 45

46 Electrical Data ELECTRICAL DATA - UPFLOW A Models Single Circuit V9A V13A V16A V19A V23A v25a A Model - Matched Condensing Unit CUS3 CUS4 CUS5 CUS6 CUS7.5 CUS8.5 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x x x 2.20 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x x x x 2.20 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x x x x x 3.00 Full Load Amps A Locked Rotor Amps A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw N/A 1 x x x x 3.00 N/A Full Load Amps A N/A N/A Locked Rotor Amps A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. 46

47 Electrical Data ELECTRICAL DATA - UPFLOW A Models Dual Circuit V23AD V31AD V35AD V41AD V45AD A Model - Matched Condensing Unit CUS4 x 2 CUS5 x 2 CUS5.5 x 2 CUS6 x 2 CUS6.5 x 2 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x x 2.2 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x 4.0 N/A 2 x x 3.0 Full Load Amps A N/A Locked Rotor Amps A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x 4.0 N/A 2 x x 3.0 Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x 3.0 N/A N/A 2 x x 4.0 Full Load Amps A 6.18 N/A N/A Locked Rotor Amps A 43.3 N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. 47

48 Electrical Data ELECTRICAL DATA - UPFLOW A Models Dual Circuit V50AD V55AD V65AD V80AD V90AD A Model - Matched Condensing Unit CUS7.5 x 2 CUS8.5 x 2 CUS10 x 2 CUS12 x 2 (4) CUS30D x 1 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x x x 5.5 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x 3.0 N/A 2 x x 5.5 N/A Full Load Amps A 6.18 N/A N/A Locked Rotor Amps A 43.3 N/A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x x x 5.5 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x 4.0 N/A N/A N/A N/A Full Load Amps A 8.12 N/A N/A N/A N/A Locked Rotor Amps A 60.9 N/A N/A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. (4) Unit cannot be sub fused. 48

49 Electrical Data ELECTRICAL DATA - UPFLOW X Models Single Circuit V9X V13X V16X V19X V23X V25X X Model - Matched Condensers C11 C15 C20 C25 C35 C45 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x x x 2.20 Full Load Amps A Locked Rotor Amps A Compressor - Per Compressor Quantity / Motor Size kw 1 x x x x x x 8.5 Nominal Run Amps A Locked Rotor Amps A Type of Start Direct On Line Oil Sump Heater W N/A N/A N/A N/A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x x x x 2.20 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x x x x x 3.00 Full Load Amps A Locked Rotor Amps A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw N/A 1 x x x x 3.00 N/A Full Load Amps A N/A N/A Locked Rotor Amps A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (3) Values given for non sub fused products, for sub-fused values, please contact Airedale. 49

50 Electrical Data ELECTRICAL DATA - UPFLOW X Models Dual Circuit V23XD V31XD V35XD V41XD V45XD X Model - Matched Condensers C15 x 2 C20 x 2 C25 x 2 C25 x 2 C35 x 2 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x x 2.2 Full Load Amps A Locked Rotor Amps A Compressor - Per Compressor Quantity / Motor Size kw 2 x x x x x 6.7 Nominal Run Amps A Locked Rotor Amps A Type of Start Direct On Line Oil Sump Heater W N/A N/A N/A N/A N/A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x 4.0 N/A 2 x x 3.0 Full Load Amps A N/A Locked Rotor Amps A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x 4.0 N/A 2 x x 3.0 Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x 3.0 N/A N/A 2 x x 4.0 Full Load Amps A 6.18 N/A N/A Locked Rotor Amps A 43.3 N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Values given for non sub fused products, for sub-fused values, please contact Airedale. 50

51 Electrical Data ELECTRICAL DATA - UPFLOW X Models Dual Circuit V50XD V55XD V65XD V80XD V90XD X Model - Matched Condensers C35 x 2 C35 x 2 C45 x 2 C45 x 2 CS50 x 2 Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x x x 5.5 Full Load Amps A Locked Rotor Amps A Compressor - Per Compressor Quantity / Motor Size kw 2 x x x x x 13.6 Nominal Run Amps A Locked Rotor Amps A Type of Start Direct On Line Oil Sump Heater W OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x 3.0 N/A 2 x x 5.5 N/A Full Load Amps A 6.18 N/A N/A Locked Rotor Amps A 43.3 N/A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x x x 5.5 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x 4.0 N/A N/A N/A N/A Full Load Amps A 8.12 N/A N/A N/A N/A Locked Rotor Amps A 60.9 N/A N/A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Values given for non sub fused products, for sub-fused values, please contact Airedale. 51

52 Electrical Data ELECTRICAL DATA - UPFLOW CW Models V9CW V13CW V16CW V19CW Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x 0.74 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x x 1.10 Full Load Amps A Locked Rotor Amps A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x x x 1.10 Full Load Amps A Locked Rotor Amps A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw N/A 1 x x x 1.50 Full Load Amps A N/A Locked Rotor Amps A N/A V23CW V25CW V31CW V35CW Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 1 x x x x 4.0 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 1 x x x 4.0 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x x x 4.0 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 1 x 3.0 N/A N/A N/A Full Load Amps A 6.18 N/A N/A N/A Locked Rotor Amps A 43.3 N/A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. 52

53 Electrical Data ELECTRICAL DATA - UPFLOW CW Models V41CW V45CW V50CW V55CW Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x x 3.0 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x x x 3.0 N/A Full Load Amps A N/A Locked Rotor Amps A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x x x 4.0 Full Load Amps A Locked Rotor Amps A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x x 4.0 N/A Full Load Amps A N/A Locked Rotor Amps A N/A V65CW V80CW V90CW V95CW Unit Data (1) Nominal Run Amps A Maximum Start Amps A Recommended Mains Fuse Size A Max Mains Incoming Cable Size mm² Mains Supply (2) V 400V / 3PH + N / 50Hz Control circuit VAC Evaporator Fan - Per Fan Quantity / Motor Size kw 2 x x x x 5.5 Full Load Amps A Locked Rotor Amps A OPTIONAL EXTRAS Electric Heating Stage of Reheat Number of Elements Rating (Total) kw Current Per Phase A Humidifier Capacity kg Rating kw Full Load Amps A HE & Pre Filter Motor Selection Quantity / Motor Size kw 2 x x 4.0 N/A N/A Full Load Amps A N/A N/A Locked Rotor Amps A N/A N/A Larger Fan Motor - Per Fan Quantity / Motor Size kw 2 x x 4.0 N/A N/A Full Load Amps A N/A N/A Locked Rotor Amps A N/A N/A Next Larger Fan Motor - Per Fan Quantity / Motor Size kw N/A N/A N/A N/A Full Load Amps A N/A N/A N/A N/A Locked Rotor Amps A N/A N/A N/A N/A (1) Values given for full function units (incl. electric heating and humidification) at ARI conditions with EFF1 fan motors and standard filters, for optional data, please contact Airedale. (2) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. 53

54 Electrical Data INTERCONNECTING WIRING A Models Head Pressure Control - Standard (Stand Alone) Sizes 9-80AD & Models DF65AT - DF90AT No Sub Fusing (1) INDOOR UNIT CIRCUIT 1 L1 Á Ë L1 L2 Á Separate Mains Separate Mains Ë L2 L3 Á Incoming Supply Incoming Supply Ë L3 N Á 400V / 3PH + N / 50Hz 400V / 3PH + N / 50Hz Ë N PE Á Ë PE 502 Ë To Outdoor Unit 1 Trip Terminals Ë Á Á Ë Cooling Signal to Outdoor Unit 1 Ë Ë Ë 577 OUTDOOR 1 CIRCUIT 2 Separate Mains Incoming Supply 400V / 3PH + N / 50Hz Ë L1 Ë L2 Ë L3 Ë N Ë PE 502 Ë To Outdoor Unit 2 Trip Terminals Ë Á Á Ë Cooling Signal to Outdoor Unit 2 Ë Ë Ë 577 OUTDOOR 2 CIRCUIT 3 (2) Separate Mains Incoming Supply 400V / 3PH + N / 50Hz Ë L1 Ë L2 Ë L3 Ë N Ë PE 502 Ë To Outdoor Unit 3 Trip Terminals Ë Á Á Ë Cooling Signal to Outdoor Unit 3 Ë Ë Ë 577 OUTDOOR 3 With Sub Fusing INDOOR UNIT CIRCUIT Ë Ë L1 268 Ë Ë L2 269 Ë Mains Sub Fused Supply Ë L3 N Ë Ë N PE Ë Ë PE OUTDOOR 1 CIRCUIT Ë Ë L1 271 Ë Ë L2 272 Ë Mains Sub Fused Supply Ë L3 N Ë Ë N PE Ë Ë PE OUTDOOR 2 CIRCUIT 3 (2) 273 Ë Ë L1 274 Ë Ë L2 275 Ë Mains Sub Fused Supply Ë L3 N Ë Ë N PE Ë Ë PE OUTDOOR 3 (1) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (2) Refers to DF65AT - DF90AT only. CABLE INSTALLATION In line with IEE Wiring Regulations, the following should be observed: Extra low voltage control cables (ELV) and mains power cable should be segregated by a minimum distance of 50mm If cables must cross, it is recommended that they cross at right angles Airedale recommends that ELV cables are screened at one end to earthed enclosures 54

55 Electrical Data INTERCONNECTING WIRING A Models Head Pressure Control - Standard (Stand Alone) Size 90AD No Sub Fusing (1) INDOOR UNIT L1 Á Ë L1 L2 Á Separate Mains Separate Mains Ë L2 L3 Á Incoming Supply Incoming Supply Ë L3 N Á 400V / 3PH + N / 50Hz 400V / 3PH + N / 50Hz Ë N PE Á Ë PE OUTDOOR UNIT CIRCUIT Ë Ë 561 To Outdoor CCT 1 Trip Terminals 545 Á Á Ë Ë 559 Cooling Signal to Outdoor CCT Ë Ë 558 CIRCUIT 1 CIRCUIT Ë Ë 561 To Outdoor CCT 2 Trip Terminals 546 Á Á Ë Ë 560 Cooling Signal to Outdoor CCT Ë Ë 558 CIRCUIT 2 (1) CUS30D units cannot be sub-fused. CABLE INSTALLATION In line with IEE Wiring Regulations, the following should be observed: Extra low voltage control cables (ELV) and mains power cable should be segregated by a minimum distance of 50mm If cables must cross, it is recommended that they cross at right angles Airedale recommends that ELV cables are screened at one end to earthed enclosures 55

56 Electrical Data INTERCONNECTING WIRING A Models Head Pressure Control - Optional Intelligent Head Pressure Control (1) INDOOR UNIT L1 Á Ë L1 L2 Á Separate Mains Separate Mains Ë L2 L3 Á Incoming Supply Incoming Supply Ë L3 N Á 400V / 3PH + N / 50Hz 400V / 3PH + N / 50Hz Ë N PE Á Ë PE 502 Ë To Outdoor Unit 1 Trip Terminals Ë Á Á 589 OUTDOOR 1 CIRCUIT Ë Cooling Signal to Outdoor Unit 1 Ë Ë Ë Ë Fan Speed Control Signal to Outdoor Unit 1 Ë Ë Ë 832 Separate Mains Incoming Supply 400V / 3PH + N / 50Hz Ë L1 Ë L2 Ë L3 Ë N Ë PE 502 Ë To Outdoor Unit 2 Trip Terminals Ë Á Á 589 OUTDOOR 2 CIRCUIT Ë Cooling Signal to Outdoor Unit 2 Ë Ë Ë Ë Fan Speed Control Signal to Outdoor Unit 2 Ë Ë Ë 832 Separate Mains Incoming Supply 400V / 3PH + N / 50Hz Ë L1 Ë L2 Ë L3 Ë N Ë PE 502 Ë To Outdoor Unit 3 Trip Terminals Ë Á Á 589 OUTDOOR 3 CIRCUIT 3 (2) 517 Ë Cooling Signal to Outdoor Unit 3 Ë Ë Ë Ë Fan Speed Control Signal to Outdoor Unit 3 Ë Ë Ë 832 (1) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. (2) Refers to DF65AT - DF90AT only. Indoor Controls Only INDOOR UNIT 560 Ë Volt Free Alarm N/O 561 Á Volt Free Alarm Common 562 Ë Volt Free Alarm N/C 563 Ë Volt Free Alarm N/O 564 Á Volt Free Alarm Common 565 Ë Volt Free Alarm N/C Common Alarm Critical Alarm 502 Ë Fire Shutdown input 583 Á Healthy in N/C Condition Remote On/Off INDOOR 502 Ë UNIT 522 Á Remote On/OFF Run/Standby Network INDOOR UNIT Rx-/Tx- ÁË Use Awg20/22 twisted pair (with overall shield) ÁË Rx-/Tx- Rx+/Tx+ ÁË cable, Belden ref (Airedale ref: ÁË Rx+/Tx+ GND ÁË ), or equivalent, for network ÁË GND INDOOR UNIT N + 1 CABLE INSTALLATION In line with IEE Wiring Regulations, the following should be observed: Extra low voltage control cables (ELV) and mains power cable should be segregated by a minimum distance of 50mm If cables must cross, it is recommended that they cross at right angles Airedale recommends that ELV cables are screened at one end to earthed enclosures 56

57 Electrical Data INTERCONNECTING WIRING X Models Head Pressure Control - Standard (Stand Alone) No Sub Fusing INDOOR UNIT CIRCUIT 1 L1 Á Separate Mains Ë L1 L2 Á Separate Mains Incoming Supply Ë N L3 Á Incoming Supply 230V/ 1PH +N / 50Hz Ë PE N Á 400V / 3PH + N / 50Hz PE Á OUTDOOR 1 CIRCUIT 2 Separate Mains Ë L1 Incoming Supply Ë N 230V/ 1PH +N / 50Hz Ë PE OUTDOOR 2 With Sub Fusing INDOOR C1 Ë Ë L1 UNIT N Ë Mains Sub Fused Supply Ë N CIRCUIT 1 PE Ë Ë PE OUTDOOR 1 CIRCUIT 2 C2 Ë Ë L1 N Ë Mains Sub Fused Supply Ë N PE Ë Ë PE OUTDOOR 2 Head Pressure Control - Optional Intelligent Head Pressure Control Fan Speed Control Fitted to Outdoor Unit (No Sub fusing available) INDOOR UNIT CIRCUIT 1 L1 Á Separate Mains Ë L1 L2 Á Separate Mains Incoming Supply Ë N L3 Á Incoming Supply 230V/ 1PH +N / 50Hz Ë PE N Á 400V / 3PH + N / 50Hz PE Á OUTDOOR Ë Ë 500 Fan Speed Control Signal to Outdoor Unit Ë Ë 832 CIRCUIT 2 Separate Mains Ë L1 Incoming Supply Ë N 230V/ 1PH +N / 50Hz Ë PE OUTDOOR Ë Ë 500 Fan Speed Control Signal to Outdoor Unit Ë Ë 832 Fan Speed Control Fitted to Indoor Unit (With Sub Fusing supplied) INDOOR UNIT L1 Á L2 Á L3 Á N Á PE Á Separate Mains Incoming Supply 400V / 3PH + N / 50Hz CIRCUIT 1 C1 Ë Ë L1 N2 Ë Mains Supply to Outdoor Unit 1 Ë N PE Ë Ë PE OUTDOOR 1 CIRCUIT 2 C2 Ë Ë L1 N3 Ë Mains Supply to Outdoor Unit 2 Ë N PE Ë Ë PE OUTDOOR 2 Indoor Controls Only INDOOR UNIT 560 Ë Volt Free Alarm N/O 561 Á Volt Free Alarm Common 562 Ë Volt Free Alarm N/C 563 Ë Volt Free Alarm N/O 564 Á Volt Free Alarm Common 565 Ë Volt Free Alarm N/C Common Alarm Critical Alarm 502 Ë Fire Shutdown input 583 Á Healthy in N/C Condition Remote On/Off INDOOR 502 Ë UNIT 522 Á Remote On/OFF Run/Standby Network INDOOR UNIT Rx-/Tx- ÁË Use Awg20/22 twisted pair (with overall shield) ÁË Rx-/Tx- Rx+/Tx+ ÁË cable, Belden ref (Airedale ref: ÁË Rx+/Tx+ GND ÁË ), or equivalent, for network ÁË GND INDOOR UNIT N + 1 CABLE INSTALLATION In line with IEE Wiring Regulations, the following should be observed: Extra low voltage control cables (ELV) and mains power cable should be segregated by a minimum distance of 50mm If cables must cross, it is recommended that they cross at right angles Airedale recommends that ELV cables are screened at one end to earthed enclosures 57

58 Electrical Data INTERCONNECTING WIRING CW Models (1) INDOOR UNIT L1 Á L2 Á L3 Á N Á PE Á Mains Incoming Supply 400V / 3PH + N / 50Hz (1) Although sizes 9-19 are 230V/1/50Hz, a 400/3/50Hz supply is recommended to accommodate 3ph options, contact Airedale for details. Indoor Controls Only INDOOR UNIT 560 Ë Volt Free Alarm N/O 561 Á Volt Free Alarm Common 562 Ë Volt Free Alarm N/C 563 Ë Volt Free Alarm N/O 564 Á Volt Free Alarm Common 565 Ë Volt Free Alarm N/C Common Alarm Critical Alarm 502 Ë Fire Shutdown input 583 Á Healthy in N/C Condition Remote On/Off INDOOR 502 Ë UNIT 522 Á Remote On/OFF Run/Standby Network INDOOR UNIT Rx-/Tx- ÁË Use Awg20/22 twisted pair (with overall shield) ÁË Rx-/Tx- Rx+/Tx+ ÁË cable, Belden ref (Airedale ref: ÁË Rx+/Tx+ GND ÁË ), or equivalent, for network ÁË GND INDOOR UNIT N + 1 CABLE INSTALLATION In line with IEE Wiring Regulations, the following should be observed: Extra low voltage control cables (ELV) and mains power cable should be segregated by a minimum distance of 50mm If cables must cross, it is recommended that they cross at right angles Airedale recommends that ELV cables are screened at one end to earthed enclosures DF65GFC - DF90GFC Models INDOOR UNIT L1 L2 L3 N PE Á Mains Incoming Supply 400V / 3PH + N / 50Hz 559 Ë N/O Remote Pump / Fan Ë Remote Pump / Fan Common 1 Indoor Controls Only INDOOR UNIT 560 Ë Volt Free Alarm N/O 561 Á Volt Free Alarm Common 562 Ë Volt Free Alarm N/C 563 Ë Volt Free Alarm N/O 564 Á Volt Free Alarm Common 565 Ë Volt Free Alarm N/C Common Alarm Critical Alarm 502 Ë Fire Shutdown input 583 Á Healthy in N/C Condition Remote On/Off INDOOR 502 Ë UNIT 522 Á Remote On/OFF Run/Standby Network INDOOR UNIT Rx-/Tx- ÁË Use Awg20/22 twisted pair (with overall shield) ÁË Rx-/Tx- Rx+/Tx+ ÁË cable, Belden ref (Airedale ref: ÁË Rx+/Tx+ GND ÁË ), or equivalent, for network ÁË GND INDOOR UNIT N + 1 CABLE INSTALLATION In line with IEE Wiring Regulations, the following should be observed: Extra low voltage control cables (ELV) and mains power cable should be segregated by a minimum distance of 50mm If cables must cross, it is recommended that they cross at right angles Airedale recommends that ELV cables are screened at one end to earthed enclosures 58

59 Controls GENERAL The Airedale range of direct expansion and chilled water precision air conditioning units have been specifically designed for today's modern working environment. The present day demands for efficient operation of computer rooms, telecommunication centres, operating theatres, laboratories and clean rooms, which utilise stand-alone or multiple in room air handling units, require a high degree of control flexibility. The Airedale design philosophy has taken this fully into account offering an adaptable control system, utilising an microprocessor controller taking full advantage of the latest state of the art technology. The control system comprises 2 main parts, the controller and the display keypad. The controller offers powerful analogue and digital control to meet a wide range of monitoring and control features. The display keypad is used for viewing the unit operating status and making adjustments to control parameters by allowing the operator access to a series of display screens. Visual alarm acknowledgement and the facility to adjust and display control settings are available at the display keypad for local operator information and control. The microprocessor controller is supplied pre-programmed whilst allowing the control parameters to be individually set to suit the customer s requirements. DISPLAY KEYPAD Button Functions 1. ALARM When one or more alarm is active the ALARM button will illuminate red. Pressing the ALARM button once will indicate information regarding any active alarms. Pressing the ALARM button twice will reset any active alarms. Prg 2. PRG Pressing the PRG button will select the main navigation menu. Esc 3. ESC Pressing the ESC button will return the user to the main display screen showing unit status. 4. UP 5. ENTER 6. DOWN Pressing the UP button can either: 1 Scroll through the various display screens, providing the cursor is in the top left position. 2 Increase the value of a set point adjustment. Pressing the ENTER button will confirm any set point adjustments and move the cursor to the next available set point. Pressing the DOWN button can either: 1 Scroll through the various display screens, providing the cursor is in the top left position. 2 Decrease the value of a set point adjustment. 59

60 Controls OPERATION Navigation The display is used for Viewing Unit Operating Status and Adjusting Customer Control Settings by allowing the operator access to a series of Menus & sub-menus. Each screen has a code in the top right hand corner for navigation and diagnostics reference. Viewing information is unrestricted, however set up and adjustment requires password entry, refer to Password Protection. Prg Initially, use the button to access the main navigation menu, the cursor will appear in the top right hand corner with the first menu UNIT ON/OFF selected. Use the and buttons to move to the desired menu. The selected menu will be shown in BLOCK CAPITALS. Press to enter the selected menu. When the cursor is Home either use the and buttons to scroll to next sub-menu or the Esc to exit and return to the Standard Operating screen. Standard Operating Screen The Operating Screen will appear and remain present following start up of the controller as illustrated: Password Protection To guard against unauthorised adjustments, a password is required to gain access to certain menus as defined below. FACTORY SET PASSWORD PIN NUMBER: 4648 (or Customer chosen number). When a password PIN number is requested use the and buttons to enter the number and to select and enter the number. This process will be repeated until all 4 digits of the PIN have been entered. Menus (Listed in Sequence) Menu Description Password Unit On/Off Enable or Disable the unit Open Access Maintenance Displays maintenance related parameters, eg hours run, sensor calibration and manual overrides. Default 4648 Alarm Log Display last 100 alarms in chronological order. Open Access Input/Output Displays current status on digital and analogue inputs and outputs. Open Access Displays current time, date and day of the week. Clock On/Off and temperature time zones can also be set. Default 4648 Note this menu is only selectable when the clock card is fitted. Setpoint Allows the user to adjust the return air temperature set point. Default 4648 User Allows the user to adjust user related parameters, Default 4648 eg high and low alarm limits and temperature bands. Manufacturer Factory use only. Airedale Only 60

61 Controls SETTING UP Unit ON/OFF Prg Initially, use the button to access the main navigation menu, the cursor will appear in the top right hand corner with the first menu UNIT ON/OFF selected. Press to access the screen and again to switch the unit on or off. Real Time Clock Time Zones Technical Support The units leave factory set; however follow the Navigation instructions if necessary. The programme provides 2 On/Off periods per day, 7 days per week. The unit is factory set for continuous operation. For further details, please contact Airedale. VIEWING UNIT OPERATING STATUS Input/Output Analogue Inputs Digital Inputs Analogue Outputs Allows access to view operating status of Digital and Analogue Inputs and Outputs. Using the Navigation instructions, the following Sub-Menus, shown in a typical sequence (dependent upon optional extras), can be accessed: Inputs and outputs can be located by the labels to the microprocessor controller. DX Unit CW Unit B1 Return air humidity B1 Return air humidity B2 Humidifier supply water conductivity B2 Humidifier supply water conductivity B3 Humidifier current B3 Humidifier current B4 Return air temperature B4 Return air temperature B5 Supply air temperature B5 Supply air temperature B6 Condensing pressure circuit 1 B6 Chilled water inlet temperature B7 Condensing pressure circuit 2 B7 Chilled water outlet temperature B8 Condensing pressure circuit 3 B8 Not used B9 Glycol inlet temperature B9 Not used DX Unit CW Unit ID1 Remote on/off ID1 Remote on/off ID2 Airflow differential pressure switch ID2 Airflow differential pressure switch ID3 Filter change differential pressure switch ID3 Filter change differential pressure switch ID4 Overheat cut-out ID4 Overheat cut-out ID5 Humidifier water level ID5 Humidifier water level ID6 Not used ID6 Not used ID7 Fire / smoke alarm ID7 Fire / smoke alarm ID8 Water flood alarm ID8 Water flood alarm ID9 Low pressure switch circuit 1 ID9 Not used ID10 Low pressure switch circuit 2 ID10 Not used ID11 Low pressure switch circuit 3 ID11 Not used ID12 Compressor 1 status ID12 Not used ID13 Compressor 2 status ID13 Not used ID14 Compressor 3 status ID14 Not used DX Unit CW Unit Y1 Main fan speed controller Y1 Main fan speed controller Y2 Condenser fan speed controller circuit 1 Y2 Chilled water valve Y3 Condenser fan speed controller circuit 2 Y3 Not used Y4 Condenser fan speed controller circuit 3 Y4 Not used 61

62 Controls VIEWING UNIT OPERATING STATUS Digital Outputs CAUTION DX Unit CW Unit NO1 Compressor 1 NO1 CW valve open NO2 Compressor 2 NO2 CW valve close NO3 Compressor 3 NO3 Not used NO4 Heat stage 1 NO4 Heat stage 1 NO5 Heat stage 2 NO5 Heat stage 2 NO6 Heat stage 3 NO6 Heat stage 3 NO7 Main fan NO7 Main fan NO8 Not used NO8 Not used NO9 Humidifier NO9 Humidifier NO10 Humidifier fill valve NO10 Humidifier fill valve NO11 Humidifier drain valve NO11 Humidifier drain valve NO12 Non-critical alarm NO12 Non-critical alarm NO13 Critical alarm NO13 Critical alarm NO14 Free cooling valve open NO14 Not used NO15 Free cooling valve close NO15 Not used NO16 Dry cooler enable NO16 Not used Inputs or outputs not required will not be connected nor will they appear on the display keypad. ALARMS ALARM HANDLING The controller logs and allows viewing of the last 100 conditions recorded in descending chronological order Alarm Label 2 Alarm Status: Alarm Active or Alarm Cleared 3 Time of Alarm 4 The most current alarm is (Code) Date of Alarm 1 A Red LED behind the button will light in the event of one or more alarms. To view the active alarms, simply press the button and the and buttons to scroll through. 2 Reset by pressing the button again. MICROPROCESSOR CONTROLLER EXAMPLE 62

63 Controls ALARMS Common Alarms Fire / Smoke Water Flood Airflow Fail Outlined below is a selection of Common Alarms, a full list is available, please contact Airedale. A normally closed contact. On initiation, all control outputs are disabled and an alarm is generated at the display keypad. A normally closed contact. On initiation, all control outputs are disabled and an alarm is generated at the display keypad. A normally closed contact. On initiation, all control outputs are disabled and an alarm is generated to the display keypad (after a delay adjustable via Airflow Alarm Delay). Compressor Trip (DX Only) A normally open contact. On initiation, the respective compressor is disabled and an alarm is generated to the display keypad. Filter Change Overheat Cut-Out Return Air Temperature High / Low Limits Return Air Humidity High / Low Limits Supply Air Temperature High / Low Limits Frost Protection Alarm Communications Fail A normally closed contact. An alarm is generated after a 5 minute delay. A normally open contact. On initiation, all control outputs to the heating relays are disabled and an alarm is generated at the display keypad. Return Air Temperature high and low limit alarms are generated when the sensor values exceed the limits set. 1 minute delays are built into both high and low limits. Return Air Humidity high and low limit alarms are generated when the sensor values exceed the limits set. 1 minute delays are built into both high and low limits. This alarm is provided to monitor and limit and includes a 1 minute delay in both the high and low limit alarms. If the sensor value reaches its high limit, all control outputs to the heating are disabled. Likewise, if the sensor value reaches its low limit, all control outputs to the cooling are disabled. The Frost Protection alarm is generated by the Frost protection thermostat when the DX coil temperature exceeds its low limit value of 3ºC. Upon an alarm being generated all control outputs to the cooling are disabled and an alarm is generated to the display keypad. This alarm is available on networked units and checks for communications with the other units on the network. Because a controller cannot generate its own alarm when it has no power, each unit on the network is monitored by the next unit. When a unit fails to receive a message from the previous unit for a period exceeding 1 minute the communications fail alarm is generated. This alarm can also indicate that there is: 1 A break in network preventing messages travelling successfully from 1 controller to the next. 2 The controller s address is set incorrectly. 63

64 Commissioning Procedure GENERAL CAUTION To be read in conjunction with the commissioning sheets provided. Please ensure all documents have been completed correctly and return to Airedale Technical Support immediately to validate warranty. COMMISSIONING CHECKLIST CAUTION ALL work MUST be carried out by technically trained competent personnel. The equipment contains live electrical and moving parts, ISOLATE prior to maintenance or repair work. Electrical Airflow Failure Switch Filter Change Switch Humidifier - Optional Extra Condensate Pump - Optional Extra 1 Check all electrical connections are tight, including contactor and all terminal connections. 2 Check supply is available at the correct voltage and that any external fuses / circuit breakers are the correct rating. 3 Check that there is a proper earth connection to the condensing unit. 4 Check that there is a supply to the crankcase heater. 5 Check that there is a proper earth connection to the unit. 6 Check filters are positioned and seated correctly. As standard the airflow fail switch is set for the fans to operate at the standard design airflow and external static, as quoted in the Technical manual or if customer specified. However in instances where the operating conditions are to be varied from the standard then the following procedure to set up the switch(s) must be followed: 1 Set airflow to required operating parameter with the use of microprocessor. 2 Open only doors to the control panel section, ensure blanking plate is in place. 3 Turn airflow switch to maximum setting to test electrical control. Controls should switch off. 4 Adjust switch downwards until the control circuit is reactivated. 5 Switch off fan (1 fan only on twin fan units) controls should switch off. 6 Turn on fan and re set unit. 7 Repeat stages 5 and 6 for 2 nd fan. Set the filter change switch to suit the installation conditions as follows: 1 Cover the surface of the filter until the alarm activates. 2 Slowly remove cover from the filter surface until 2/3 of the filter area is blocked. 3 Adjust the filter change switch until the alarm activates. 4 Remove cover from the surface of the coil completely and ensure that the switch resets. Check humidifier is correctly set up and commissioned, refer to Set Up, on page 87. Check pump is primed; refer to Condensate Pump Priming, on page

65 Commissioning Procedure COMMISSIONING CHECKLIST Refrigeration 1 If the unit has a holding charge or is pre-charged check that the charge is present in the system. 2 Check compressor sump heater (if fitted) has been active for minimum of 8 hours. 3 Check compressor oil sight glass level is between 1/4 and 3/4, refer to Compressor Details, on page Check that the high and low pressure switches are cutting out the compressors at the correct settings. High pressure switch cut-out 27.6 bar (400psi) High pressure switch cut-in 20.7 bar (300psi) High pressure switch differential 6.9 bar (100psi) Low pressure switch cut-out 0.5 bar ( 7psi) Low pressure cut-in 1.7 bar ( 25psi) Low pressure differential 1.2 bar ( 17psi) 5 The gauges can then be removed from the system. Do not forget to replace the security caps on the Schrader valves. HOLDING CHARGE CHARGING PROCEDURE REFRIGERANT CHARGING GUIDE Unit Refrigerant Charge (Kg/Circuit) A and X type units are shipped with a holding charge of inert gas. This is to ensure that there is no risk of internal contamination or moisture entering the units during shipping or storage. Before installation the unit should be checked to ensure that the holding charge has been retained. If it appears to be either partially or totally lost, then the unit concerned should be carefully checked for signs of physical damage. The glycol free cooling units are pre-charged with refrigerant R407C as follows (R22 option; shipped with a holding charge of inert gas): DF65GFCT DF80GFCT DF90GFCT Refrigerant Charge/Circuit kg The system should be charged in accordance with accepted good practice and the suction and discharge pressures should be constantly monitored whilst charging is in progress. At the same time the compressor current should be monitored. The system should be charged to the relevant suction and discharge pressures, together with the correct suction superheat (normally 5 to 6 C). Once this has been done, all the readings taken should be recorded on the commissioning sheets and a copy returned to Airedale for warranty purposes. The following information can be used to estimate the refrigerant quantity required in a split system installation. The following table shows the refrigerant charge / circuit for the indoor and outdoor units. Indoor Unit (IR) kg/circuit Condenser (OR) Condensing kg/circuit Unit (OR) kg/circuit (1) DF / V 9-16 A & X 2.1 C CUS DF / V A & X 3.8 C CUS DF / V 25 A & X 4.6 C CUS DF / V 23D - 31D A & X 2.7 C CUS DF / V 35 A & X 4.1 CS CUS 30D 9.0 DF / V 41D & 50D A & X 4.1 DF / V 45D & 55D A & X 6.1 DF / V 65D - 80D A & X 6.7 DF / V 90D A & X 8.0 DF 65T - 90T A 4.4 (1) CUS3-4 models are delivered PRECHARGED with refrigerant. 65

66 Commissioning Procedure REFRIGERANT CHARGING GUIDE Liquid Line Refrigerant Charge (kg/m) IMPORTANT The following table shows the refrigerant charge / metre for the liquid line, using R407C and assuming liquid line temperature of 40 C. Liquid Line (m) kg/m 3/ / / / / / The pipe sizes (refer to Refrigerant Pipe Sizing Guide, on page 32 and refrigerant charges quoted are for guidance only. It is the responsibility of the installing contractor/site engineer to check the pipe sizes/refrigerant charge is correct for each system installation and application. Split systems may require additional oil which should be added to the low side of each compressor, refer to Oil Charging Guide on page 67. Design should be in accordance with accepted refrigeration practice to ensure good oil return to the compressor(s) under all normal operating conditions. To Calculate the Liquid Line Refrigerant Charge (kg) To Calculate the System Refrigerant Charge (kg) The liquid line refrigerant charge can be calculated using the following equation: LR = L x m Where: LR = Total Liquid Line Refrigerant charge (kg) L = Length of Interconnecting pipework (metres) m = Liquid Line Refrigerant charge / metre. Refer to Liquid Line Refrigerant Charge (kg/m) in this section. The system refrigerant charge can be calculated using the following equation: SR = LR + IR + OR Where: SR = Total System Refrigerant charge (kg) LR = Total Liquid Line Refrigerant charge. (As calculated from above) IR = Indoor Unit Refrigerant Charge. Refer to Unit Refrigerant Charge (Kg/Circuit) in this section. OR = Outdoor Unit Refrigerant Charge. Refer to Unit Refrigerant Charge (Kg/Circuit) in this section. Example Indoor Unit Model Ref. = DF65AD (Dual Circuit) Outdoor Unit Model Ref. = 2 x CUS10 Condensing Units Interconnecting Pipework = 10 metres Selecting The Liquid Line Size From the Liquid Line Refrigerant Charge (kg/m) table in this section, the liquid line size given for pipework length of 10 metres is: Liquid Line Size = 5/8 Liquid Line Refrigerant Charge LR = L x m LR = 10 x 0.16 Where: L = 10 metres m = 0.16 kg/m Liquid Line Charge = 1.6 kg System Refrigerant Charge SR = LR + IR + OR Where: LR = 1.6 kg (As calculated from above) IR = 6.7 kg OR = 4.8 kg SR = System Refrigerant Charge = 13.1kg / Circuit (1) (1) CUS3-4 models are delivered PRECHARGED with refrigerant. 66

67 Commissioning Procedure OIL CHARGING GUIDE To Calculate the System Oil Charge Example The compressor(s) is supplied with oil for up to approximately 20m of interconnecting pipework, refer to Compressor Details on page 68: The following information can be used as a guide to estimate the amount of additional oil that may be added to a typical split system if necessary. The system oil charge can be calculated using the following equation: O T = (R C 4 200) - (O C x 0.09) Indoor Unit Model Ref Outdoor Unit Model Ref O T = (R C 4 200) - (O C x 0.09) Where: R C = Total Refrigerant charge. Refer to Refrigerant Charging Guide in this section. O C = Total Compressor Oil Charge (Litres). Refer to Compressor Details in this section. O T = Additional Oil Charge (kg). = DF9X = C11 Condenser Where: R c = 25 kg / Circuit = 1.1 Litres / Circuit O C O T = System Additional Oil Charge = 0.026kg or Litres / Circuit IMPORTANT COMPRESSORS IMPORTANT Should the result of the above calculation be a negative value, this would suggest that there is already sufficient oil in the system. However, good commissioning practice should still be observed to ensure the correct oil level is available. The compressor oil sight glass (where fitted) should indicate a level of between 1/4 and 3/4 to ensure correct operation. Run the compressor(s) for a minimum of 1 hour to check oil return and motor function. For tandem or trio sets, checks should be performed in part load operation. Use a temperature metering device on each circuit: 1 Check operation and super heat readings are within acceptable limits. 2 Check suction and discharge pressure are within acceptable limits. 3 Check there is NO foaming in the compressor sight glass. This would indicate the presence of liquid returning to the compressor. 4 Check sight glass following commissioning and top oil up if level has fallen below minimum; refer to Oil Charging Guide above. For applications with pipework in excess of 20m, long vertical runs, special operating conditions etc, ensure good oil return is guaranteed AND add sufficient oil to the system. REMEMBER, TOO MUCH or TOO LITTLE OIL can cause compressor damage. As a rule NO MORE than 10% additional oil should be added to any system. ALWAYS use the oil specified by the compressor manufacturer. 67

68 Commissioning Data COMPRESSOR DETAILS Unit Qty Oil Sight Glass Total Oil Charge Volume (l) / Compressor Weight (kg) Original Oil Type Recommended Replacement Oil Variant DF / V9X 1 No 1.36 x POE Type 2 or 3 DF / V13X 1 No 1.85 x PVE Type 1, 2 or 3 DF / V16X 1 No 1.85 x POE DF / V19X 1 No 1.65 x POE DF / V23X 1 Yes 3.25 x POE DF / V25X 1 Yes 3.80 x POE Type2 or 3 Type 4 DF / V23XD 2 No 1.85 x PVE Type 1,2 and 3 DF / V31XD 2 No 1.85 x POE DF / V35XD 2 No 1.65 x POE Type 2 and 3 DF / V41XD 2 No 1.65 x POE DF / V45XD 2 Yes 4.10 x POE DF / V50XD 2 Yes 3.25 x POE DF / V55XD 2 Yes 3.80 x POE POE Type 4 DF / V65XD 2 Yes 3.80 x DF / V80XD 2 Yes 3.30 x DF / V90XD 2 Yes 6.20 x POE POE Motor Protection Type Internal Internal Internal Internal Discharge Gas Temperature Protection Internal Thermodisc Discharge Gas Thermostat Internal Thermodisc Discharge Gas Thermostat Temperature Rating 146 C +/- 4 C 91 C +/- 7 C 135 C 146 C +/- 4 C 91 C +/- 7 C 135 C Oil Sump Heater No Yes No Yes Type 1 Type 2 Type 3 Type 4 PVE PVE 320HV POE ICI Emkarate RL 32 CF POE Mobil EAL Arctic 22 CC POE Maneurop 160SZ ETHYLENE GLYCOL CORRECTION FACTORS For conditions outside those quoted, please refer to Airedale. The Use of Glycol Glycol is recommended when a supply water temperature of +5 C or below is required or when static water can be exposed to freezing temperatures. The effect of glycol in the system has a direct effect upon the Cooling Duty, the Design Flow Rate and the unit Pressure Drop. To approximate the effect of glycol on unit performance, the following correction factors when applied can be used as a guide. Where: Q = Total Cooling Capacity (TC) (kw) Qw = Equivalent Water Cooling Capacity (kw), refer to Technical Manual. V & = Corrected Flow Rate. DT = Temperature difference between Water/Glycol Inlet/Outlet ( C). DP = Maximum Water/ Glycol Pressure Drop for the indoor unit (kpa). DPw = Equivalent Water Pressure Drop for indoor unit (kpa), use the corrected flow rate V &. Refer to Waterside Pressure Drop (kpa), on page 81. Ethylene Glycol (Volume) / Freezing Point C 10% / -4 C 20% / -9 C 30% / -15 C 40% / -23 C Q Corrected Cooling Duty = Qw Cooling Capacity V & Corrected Flow Rate = Qw/DT Flow Rate x by DP Corrected Pressure Drop = DP w Pressure Drop Example: DF50CW operating at 7/12, 24 C/45% RH Ambient, 20% Ethylene Glycol Ethylene Glycol (Volume) / Freezing Point C 10% / -4 C 20% / -9 C 30% / -15 C 40% / -23 C Q kw = Qw 59.5 kw V & 2.95 l/s = Qw/DT (12-7 = 5DT) = 11.9 x by DP kpa = DP w 44 kpa

69 Commissioning Data OPERATING LIMITS A & X Models Cooling Indoor Air Temperature +18 C to +26 C Indoor RH% +40% to +50% Outdoor Temperature -20 C to +40 C CW Models (100% Water) Cooling Indoor Air Temperature +18 C to +26 C Indoor RH% +40% to +50% Water Entering Temperature +5 C to +16 C Water Leaving Temperature +10 C to +16 C (1) Conditions quoted at 100% Water. GFC Models (100% Water) Cooling Indoor Air Temperature +18 C to +26 C Indoor RH% +40% to +50% Outdoor Temperature -20 C to +40 C 69

70 Commissioning Data FAN DATA - DOWNFLOW A & X Models Single Circuit DF9A DF13A DF16A DF9X DF13X DF16X Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Direct / Standard Direct / Standard Direct / Standard Quantity / Motor Size kw 1 x x x Pa ESP rpm N/A N/A N/A Maximum ESP Pa Maximum ESP rpm N/A N/A N/A Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Direct / HE Direct / HE Direct / HE Quantity / Motor Size kw 1 x x x Pa ESP rpm N/A N/A N/A Maximum ESP Pa Maximum ESP rpm N/A N/A N/A Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x 1.10 Maximum ESP Pa Maximum ESP rpm Next Larger Fan Motor Size (1) Motor / Filter Type N/A Belt / Standard Belt / Standard Quantity / Motor Size kw N/A 1 x x 1.50 Maximum ESP Pa N/A Maximum ESP rpm N/A DF19A DF23A DF25A DF19X DF23X DF25X Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Direct / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x Pa ESP rpm N/A Maximum ESP Pa Maximum ESP rpm N/A Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE Quantity / Motor Size kw 1 x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x 2.20 Maximum ESP Pa Maximum ESP rpm Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x 3.00 Maximum ESP Pa Maximum ESP rpm (1) HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 70

71 Commissioning Data FAN DATA - DOWNFLOW A & X Models Dual Circuit DF23AD DF31AD DF35AD DF41AD DF45AD DF23XD DF31XD DF35XD DF41XD DF45XD Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE Belt / HE Belt / HE Quantity / Motor Size kw 1 x x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard N/A Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x 4.00 N/A 2 x x 3.00 Maximum ESP Pa N/A Maximum ESP rpm N/A Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard N/A N/A Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x 2.20 N/A N/A 2 x x 4.00 Maximum ESP Pa 415 N/A N/A Maximum ESP rpm 1048 N/A N/A DF50AD DF55AD DF65AD DF80AD DF90AD DF50XD DF55XD DF65XD DF80XD DF90XD Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE Belt / HE Belt / HE Quantity / Motor Size kw 2 x x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard N/A Quantity / Motor Size kw 2 x x x x 5.50 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard N/A Belt / Standard N/A N/A Quantity / Motor Size kw 2 x 4.00 N/A 2 x 4.00 N/A N/A Maximum ESP Pa 790 N/A 525 N/A N/A Maximum ESP rpm 1494 N/A 1282 N/A N/A (1) HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 71

72 Commissioning Data FAN DATA - DOWNFLOW A & X Models Triple Circuit DF65AT DF80AT DF90AT Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE Quantity / Motor Size kw 2 x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard N/A Quantity / Motor Size kw 2 x x 5.50 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard N/A N/A Quantity / Motor Size kw 2 x 4.00 N/A N/A Maximum ESP Pa 525 N/A N/A Maximum ESP rpm 1282 N/A N/A (1) HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. CW Models DF9CW DF13CW DF16CW DF19CW Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Direct / Standard Direct / Standard Direct / Standard Direct / Standard Quantity / Motor Size kw 1 x x x x Pa ESP rpm N/A N/A N/A N/A Maximum ESP Pa Maximum ESP rpm N/A N/A N/A N/A Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Direct / HE Direct / HE Direct / HE Belt / HE Quantity / Motor Size kw 1 x x x x Pa ESP rpm N/A N/A N/A 575 Maximum ESP Pa Maximum ESP rpm N/A N/A N/A 826 Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x x 1.10 Maximum ESP Pa Maximum ESP rpm Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw N/A 1 x x x 1.50 Maximum ESP Pa N/A Maximum ESP rpm N/A (1) HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 72

73 Commissioning Data FAN DATA - DOWNFLOW CW Models DF23CW DF25CW DF31CW DF35CW Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE N/A Quantity / Motor Size kw 1 x x x 3.00 N/A 25Pa ESP rpm N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard N/A Quantity / Motor Size kw 1 x x x 4.00 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard N/A N/A Quantity / Motor Size kw 1 x x 3.00 N/A N/A Maximum ESP Pa N/A N/A Maximum ESP rpm N/A N/A DF41CW DF45CW DF50CW DF55CW Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE Belt / HE Quantity / Motor Size kw 2 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x x 4.00 Maximum ESP Pa Maximum ESP rpm Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard N/A Quantity / Motor Size kw 2 x x x 4.00 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A (1) HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 73

74 Commissioning Data FAN DATA - DOWNFLOW CW Models DF65CW DF80CW DF90CW DF95CW Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE Belt / HE Quantity / Motor Size kw 2 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard N/A N/A Quantity / Motor Size kw 2 x x 5.50 N/A N/A Maximum ESP Pa N/A N/A Maximum ESP rpm N/A N/A Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard N/A N/A N/A Quantity / Motor Size kw 2 x 4.00 N/A N/A N/A Maximum ESP Pa 525 N/A N/A N/A Maximum ESP rpm 1282 N/A N/A N/A (1) HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. GFC Models DF65GFCT DF80GFCT DF90GFCT Fan & Motor (1) Centrifugal - Designed to 25Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE N/A Quantity / Motor Size kw 2 x x 5.50 N/A 25Pa ESP rpm N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Larger Fan Motor Size Motor / Filter Type Belt / Standard Belt / Standard N/A Quantity / Motor Size (1) kw 2 x x 5.50 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Next Larger Fan Motor Size N/A N/A N/A (1) HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 74

75 Commissioning Data FAN DATA - UPFLOW A & X Models Single Circuit V9A V13A V16A V9X V13X V16X Fan & Motor (1) Centrifugal - Designed to 50Pa ESP Motor / Filter Type Direct / Standard Direct / Standard Direct / Standard Quantity / Motor Size kw 1 x x x Pa ESP rpm N/A N/A N/A Maximum ESP Pa Maximum ESP rpm N/A N/A N/A Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Direct / HE Direct / HE Direct / HE Quantity / Motor Size kw 1 x x x Pa ESP rpm N/A N/A N/A Maximum ESP Pa Maximum ESP rpm N/A N/A N/A Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x 1.10 Maximum ESP Pa Maximum ESP rpm Next Larger Fan Motor Size (1) kw Motor / Filter Type N/A Belt / Standard Belt / Standard Quantity / Motor Size kw N/A 1 x x 1.50 Maximum ESP Pa N/A Maximum ESP rpm N/A V19A V23A V25A V19X V23X V25X Fan & Motor (1) Centrifugal - Designed to 50Pa ESP Motor / Filter Type Direct / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x Pa ESP rpm N/A Maximum ESP Pa Maximum ESP rpm N/A Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE Quantity / Motor Size kw 1 x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x 3.00 Maximum ESP Pa Maximum ESP rpm Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard N/A Quantity / Motor Size kw 1 x x 3.00 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A (1) Based on standard front return air and grilles. HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 75

76 Commissioning Data FAN DATA - UPFLOW A & X Models Dual Circuit V23AD V31AD V35AD V41AD V45AD V23XD V31XD V35XD V41XD V45XD Fan & Motor (1) Centrifugal - Designed to 50Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE N/A Belt / HE Belt / HE Quantity / Motor Size kw 1 x x 4.00 N/A 2 x x Pa ESP rpm N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard N/A Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x 4.00 N/A 2 x x 3.00 Maximum ESP Pa N/A Maximum ESP rpm N/A Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard N/A N/A Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x 3.00 N/A N/A 2 x x 4.00 Maximum ESP Pa 550 N/A N/A Maximum ESP rpm 1238 N/A N/A V50AD V55AD V65AD V80AD V90AD V50XD V55AX V65XD V80XD V90AX Fan & Motor (1) Centrifugal - Designed to 50Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE N/A Belt / HE Belt / HE N/A Quantity / Motor Size kw 2 x 3.00 N/A 2 x x 5.50 N/A 50Pa ESP rpm 1282 N/A N/A Maximum ESP Pa 70 N/A N/A Maximum ESP rpm 1296 N/A N/A Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard N/A Quantity / Motor Size kw 2 x x x x 5.50 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard N/A N/A N/A N/A Quantity / Motor Size kw 2 x 4.00 N/A N/A N/A N/A Maximum ESP Pa 665 N/A N/A N/A N/A Maximum ESP rpm 1496 N/A N/A N/A N/A (1) Based on standard front return air and grilles. HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 76

77 Commissioning Data FAN DATA - UPFLOW CW Models V9CW V13CW V16CW V19CW Fan & Motor (1) Centrifugal - Designed to 50Pa ESP Motor / Filter Type Direct / Standard Direct / Standard Direct / Standard Direct / Standard Quantity / Motor Size kw 1 x x x x Pa ESP rpm N/A N/A N/A N/A Maximum ESP Pa Maximum ESP rpm N/A N/A N/A N/A Nominal Airflow m³/s HE & Pre Filter Motor Selection Motor / Filter Type Direct / HE Direct / HE Direct / HE Belt / HE Quantity / Motor Size kw 1 x x x x Pa ESP rpm N/A N/A N/A 575 Maximum ESP Pa Maximum ESP rpm N/A N/A N/A 826 Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x x 1.10 Maximum ESP Pa Maximum ESP rpm Next Larger Fan Motor Size (1) Motor / Filter Type N/A Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw N/A 1 x x x 1.50 Maximum ESP Pa N/A Maximum ESP rpm N/A V23CW V25CW V31CW V35CW Fan & Motor (1) Centrifugal - Designed to 50Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 1 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE Belt / HE Quantity / Motor Size kw 1 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard N/A Quantity / Motor Size kw 1 x x x 4.00 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard N/A N/A N/A Quantity / Motor Size kw 1 x 3.00 N/A N/A N/A Maximum ESP Pa 560 N/A N/A N/A Maximum ESP rpm 1284 N/A N/A N/A (1) Based on standard front return air and grilles. HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 77

78 Commissioning Data FAN DATA - UPFLOW CW Models V41CW V45CW V50CW V55CW Fan & Motor (1) Centrifugal - Designed to 50Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE Belt / HE N/A Quantity / Motor Size kw 2 x x x 3.00 N/A 25Pa ESP rpm N/A Maximum ESP Pa N/A Maximum ESP rpm N/A Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x x 4.00 Maximum ESP Pa Maximum ESP rpm Next Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard N/A Quantity / Motor Size kw 2 x x x 4.00 N/A Maximum ESP Pa N/A Maximum ESP rpm N/A V65CW V80CW V90CW V95CW Fan & Motor (1) Centrifugal - Designed to 50Pa ESP Motor / Filter Type Belt / Standard Belt / Standard Belt / Standard Belt / Standard Quantity / Motor Size kw 2 x x x x Pa ESP rpm Maximum ESP Pa Maximum ESP rpm Nominal Airflow m³/s OPTIONAL EXTRAS HE & Pre Filter Motor Selection Motor / Filter Type Belt / HE Belt / HE N/A N/A Quantity / Motor Size kw 2 x x 5.50 N/A N/A 25Pa ESP rpm N/A N/A Maximum ESP Pa N/A N/A Maximum ESP rpm N/A N/A Larger Fan Motor Size (1) Motor / Filter Type Belt / Standard Belt / Standard N/A N/A Quantity / Motor Size kw 2 x x 5.50 N/A N/A Maximum ESP Pa N/A N/A Maximum ESP rpm N/A N/A Next Larger Fan Motor Size (1) Motor / Filter Type N/A N/A N/A N/A Quantity / Motor Size kw N/A N/A N/A N/A Maximum ESP Pa N/A N/A N/A N/A Maximum ESP rpm N/A N/A N/A N/A (1) Based on standard front return air and grilles. HE & Pre filters may alter the motor selection, see Optional Extras or contact Airedale for details. 78

79 Commissioning Data FAN SPEED ADJUSTMENT Models 9-19 Direct Drive The following table indicates the input voltage value required to achieve the desired air volume against ESP. The fan speed input voltage value (ie air volume) is factory set based on customer specification however, adjustment via the display keypad is achieved by the following procedure: Prg Initially, use the button to access the main navigation menu, the cursor will appear in the top right hand corner with the first submenu UNIT ON/OFF selected. Use the and buttons to move to the USER submenu. The selected submenu will be shown in BLOCK CAPITALS. Press to enter the USER submenu. Press button once to select the first digit of the PIN number. When a password PIN number is requested use the and buttons to enter the number and to select and enter the number. This process will be repeated until all 4 digits of the PIN have been entered. (Code displayed (P0), factory set to 4648.) In the USER sub menu use the displayed (Pb)). button to select the main fan speed set point (code Press the button once to select the main fan speed set point and the and buttons to adjust the value. Press the button to confirm the set point. Fan speed will adjust automatically. CAUTION Press the Esc once to exit to the main screen, code displayed (M0). To protect the motor, the fan speed starts slowly and will increases to the desired speed over a short period. Low air volumes can cause the DX evaporator coil to freeze. When adjusting fan speed set point, ensure the values are within those stated within the table. The microprocessor minimum set point is preset to 20%. 79

80 Commissioning Data FAN SPEED ADJUSTMENT Input Voltage Value MODEL SIZE STANDARD FILTERS External Static Pressure (Pa) Air-Flow (m³/s) % Correction % % Standard % % % % Standard % % % % N/A Standard N/A % N/A N/A % N/A N/A % N/A N/A N/A % N/A N/A N/A N/A Standard N/A N/A N/A N/A N/A % N/A N/A N/A N/A N/A N/A N/A % N/A N/A N/A N/A N/A N/A N/A MODEL SIZE HIGH EFFICIENCY & PRE FILTER External Static Pressure (Pa) Air-Flow (m³/s) % Correction % % Standard % % % % Standard % % % N/A N/A N/A % N/A N/A N/A N/A N/A Standard N/A N/A N/A N/A N/A % N/A N/A N/A N/A N/A N/A N/A % N/A N/A N/A N/A N/A N/A N/A % N/A N/A N/A N/A N/A N/A N/A % N/A N/A N/A N/A N/A N/A N/A Standard N/A N/A N/A N/A N/A N/A N/A % N/A N/A N/A N/A N/A N/A N/A % N/A N/A N/A N/A N/A N/A N/A 80

81 Commissioning Data WATERSIDE PRESSURE DROP (KPA) Chilled Water Models Waterside Pressure Drop (kpa) Waterflow (l/s) (1) Includes coil, 3 port valve and pipework. (2) To calculate 3 port valve pressure drop: DP valve = 2 Ê Q ˆ Á Ë M where DP = Pressure Drop in kpa, Q = Water Flow Rate in l/s and M = (3) Fluid 100% water, for glycol use, refer to Ethylene Glycol Correction Factors on page 68. M Values Sizes Chilled Water Valve Chilled Water Capacity - Total kw (Gross) Refer to Technical Manual. Glycol Free Cooling Models - Downflow Only 200 Ê Kv ˆ Á Ë 36 Waterside Pressure Drop (kpa) (1) Includes coil, 3 port valve and pipework. Waterflow (l/s) 81

82 Commissioning Data LOW PRESSURE HOT WATER (OPTIONAL EXTRA) Downflow 50 Waterside Pressure Drop (kpa) & 41D - 55D & 23D - 35D Waterflow (l/s) Upflow 60 Waterside Pressure Drop (kpa) D 55D 23D - 35D 65D 95D Waterflow (l/s) (1) Includes coil, 3 port valve and pipework. (2) To calculate 3 port valve pressure drop: DP valve = 2 Ê Q ˆ Á Ë M where DP = Pressure Drop in kpa, Q = Water Flow Rate in l/s and M = (3) Fluid 100% water, for glycol use, refer to Ethylene Glycol Correction Factors on page 68. M Values Ê Kv ˆ Á Ë 36 Sizes LPHW

83 Commissioning Data LOW PRESSURE HOT WATER (OPTIONAL EXTRA) Downflow DF9A DF13A DF16A DF19A DF23A DF25A DF9X DF13X DF16X DF19X DF23X DF25X DF9CW DF13CW DF16CW DF19CW DF23CW DF25CW Capacity Gross (1) kw Water Flow (Nominal) l/s DF23AD DF31AD DF35AD DF41AD DF45AD DF50AD DF23XD DF31XD DF35XD DF41XD DF45XD DF50XD DF31CW DF35CW DF41CW DF45CW DF50CW Capacity Gross (1) kw Water Flow (Nominal) l/s DF55AD DF65AD DF80AD DF90AD DF55XD DF65XD DF80XD DF90XD DF55CW DF65CW DF80CW DF90CW DF95CW Capacity Gross (1) kw Water Flow (Nominal) l/s DF65AT DF80AT DF90AT DF65GFCT DF80GFCT DF90GFCT Capacity Gross (1) kw Water Flow (Nominal) l/s (1) Based upon low pressure hot water 82 C inlet/71 C outlet. Air on 20 C. (2) LPHW connection sizes; 22mm. Upflow V9A V13A V16A V19A V23A V25A V9X V13X V16X V19X V23X V25X V9CW V13CW V16CW V19CW V23CW V25CW Capacity Gross (1) kw Water Flow (Nominal) l/s V23AD V31AD V35AD V41AD V45AD V50AD V23XD V31XD V35XD V41XD V45XD V50XD V31CW V35CW V41CW V45CW V50CW Capacity Gross (1) kw Water Flow (Nominal) l/s V55AD V65AD V80AD V90AD V55AX V65XD V80XD V90AX V55CW V65CW V80CW V90CW V95CW Capacity Gross (1) kw Water Flow (Nominal) l/s (1) Based upon low pressure hot water 82 C inlet/71 C outlet. Air on 20 C. (2) LPHW connection sizes; 22mm. 83

84 Commissioning Data CONDENSATE PUMP (OPTIONAL EXTRA) Performance The following illustrates the TOTAL static (head) pressure available. The system horizontal pipe losses and vertical lift should be factored in when calculating the condensate pump performance Head (m) IMPORTANT Pump Flow Rate (l/min) Use only 10mm (3/8 ) copper tube when connecting the discharge stub to the condensate pump. The discharge line from the pump should rise no more than 6 meters vertically and no more than 8 metres in total length before being interrupted with a swan neck air break and tundish. Condensate Pump Priming Maintenance Prior to unit start up the condensate pump reservoir should be slowly filled with clean tap water, until the pump activates. Keep filling the pump and check that the discharge is properly pumping through. This will prime the system for normal operation. Every 6 months: Unscrew the pump lid and check the pump reservoir for debris or residue. Clean out with clean tap water, DO NOT use detergent. Check the 2.5mm purging hole in the impeller casing is clear and free of debris. To clear use a narrow implement (2.5mm drill bit) to clear the blockage. Check the float switches are free running. If not, clean the shafts with a damp cloth. 84

85 Commissioning Data HUMIDIFIER (OPTIONAL EXTRA) Initial Start-up Normal Operation Initially the humidifier cylinder will be empty. The cylinder will then fill with water from the tundish until sufficient current is passed between the electrodes, at which point the feed solenoid valve will close. During the start up phase, the current will remain low until either; there is a sufficient concentration of conductive salts built up within the bottle Or the immersion level of the electrodes is enough to pass the required current. As a guide, 1A of current passed between the electrodes will generate approximately 1kg/hr of steam. The desired operating current is reached; the process taking a few minutes or several hours according to the hardness of the water. Following the initial installation of a new bottle, this process may take several hours in soft water areas or a matter of minutes in hard water areas. The water conductivity levels ie hardness/softness can be viewed from the display keypad. Sizes 9-16 Sizes Sizes Humidifier Capacity kg/hr Once the start-up period has been completed, the cylinder will operate automatically, ensuring the correct quantity of steam is delivered. NOTE All humidifiers provide variable steam production as standard. Once this current value is exceeded with a cylinder in normal operation, the drain solenoid energises to allow the high salt content water to drain. During this process the power supply to the bottle is cut. After this pre-set time the drain solenoid will close and the feed valve will open until the correct water operating height is reached. The water being below its boiling point will then re-heat and continue to operate at the correct output. The humidifier will then operate under the dictates of the humidistat following this procedure. As the electrodes become scaled the electronic sensing device allows the conductivity (solids of the water in the cylinder) to gradually rise keeping the current reasonably static at the desired value. Once the electrodes become badly corroded or there is sufficient build up of scale, an alarm (bottle change) will be initiated to the microprocessor necessitating a bottle change. When this has been carried out the initial start-up sequence is repeated and normal running resumed. 85

86 Commissioning Data HUMIDIFIER (OPTIONAL EXTRA) General Description Humidification is provided by an electrode boiler. The sealed humidifier design ensures that only clean sterile steam is supplied to the conditioned area and corrosive salts and minerals are held in the disposable bottle. The steam is distributed through a sparge pipe fitted to the coil assembly. Featuring modulating capacity output control as standard, the system provides continuous modulation of steam output in response to a proportional control signal. The output control range is 20%-100% of the humidifier rated value and is designed to give an approximate steam output of +/- 3%, thus ensuring precise control of the conditioned space. The cylinder operating life time is automatically optimised via the integrated water conductivity sensor, which combined with the controls monitors and regulates the water refill cycle to reduce excessive salt deposits and the progressive wear of the cylinder. All humidifier parameters and alarms are accessible and adjustable via the microprocessor display keypad unit, main features include: Supply water conductivity (ms/cm) Actual steam output (kg/h) Required steam output (kg/h) Actual current rating (A) Required current rating (A) Status mode (Start Up, Running, Filling, Draining) Bearing Frame 2 Cylinder 3 Drain solenoid valve 4 Drain connection 5 Fill tank & conductivity meter 6 Rubber Securing Belt 7 Fill solenoid valve HUMIDIFIER RECONNECTION With the split delivery option, the humidifier bottle is delivered in the top section and the stand in the bottom section for transportation purposes (refer to Split Case Assembly on page 18). A B C Reconnect the plug and spade leads for the drain (item 3) and fill solenoid valves (item 6). Firmly push the humidifier bottle into place and fasten the rubber belt round waist until secure. Reconnect the sparge pipe, ensuring the Jubilee clips and plastic interconnection are tight. 86

87 Commissioning Data HUMIDIFIER (OPTIONAL EXTRA) Water Conductivity & Cylinder Type Conductivity is a measure of the ability of water to pass an electric current, measured in micro Siemens / centimetre (ms/cm). 3 different cylinders are available which correspond to the supply water conductivity. Matching the correct cylinder type with the conductivity of the supply water ensures optimum performance and increases the life span of the cylinder. 1 Low Conductivity (Soft Water) 100 to 350 ms/cm 2 Standard Conductivity (Moderate/Hard Water) 350 to 750 ms/cm 3 High Conductivity (Very Hard Water) 750 to 1250 ms/cm As standard the humidifier is fitted with the Standard conductivity cylinder which covers the majority of water supplies. Where the water conductivity is known, this should be specified at the time of order. Cleanable Humidifier Cylinder The humidifier can be fitted with a take apart cylinder enabling the bottle and the electrodes to be cleaned and reused. The cylinder can typically be cleaned 3 times before replacing either the electrodes or the entire cylinder. The cleanable humidifier cylinders are available in 8kg and 15kg bottle sizes with standard or high conductivity levels only. For further details please contact Airedale O Ring 2 Gasket 3 Electrodes 4 Filter 4 Set Up The following procedure should be carried out on all types of unit whether fully precharged with refrigerant or shipped to site with a holding charge. Humidifiers are NOT factory set-up. 87

88 Commissioning Data HUMIDIFIER (OPTIONAL EXTRA) Pre Start Checks 1 Ensure a water supply is available to the humidifier at the correct pressure and quality; refer to Water Supply, on page 34. IMPORTANT 2 Ensure security and tightness of connections; refer to Water Supply, on page 34. Commissioning 3 Ensure the drain line is connected and that water flows away freely. This can be carried out by first checking free draining from the tundish, prior to filling then draining the cylinder. 4 Ensure that the steam distribution pipe is connected securely at both the distribution and cylinder ends and is not kinked or damaged. 1 Open the (customer supplied) water supply valve adjacent to the unit. 2 With the bottle in operation and the feed solenoid valve (Yellow) activated, ensure the water is feeding via the tundish to the humidifier. Watch the initial start-up procedure commence. Fit clamp on ammeter onto 1 of the wires feeding the electrodes and observe the current. 3 The current can also be viewed through the microprocessor display keypad. Compare the clamp on ammeter with the display reading to ensure they concur (0.5A tolerance). 4 The steam output can be reduced by changing the output demand through the microprocessor display menu. IMPORTANT 5 Record humidifier bottle type, supply water conductivity and supply water pressure on the commissioning sheet provided. UNITS FITTED WITH THERMOSTATIC EXPANSION VALVES (TEV) Head Pressure Control - Stand Alone Adjustment The system head pressure can be adjusted by turning the slot headed screw on the transducer. The head pressure will now be controlled by the fan speed operation in 1 of 2 possible modes: Cut Off Mode (Outdoor CUS Models Only) Minimum Speed Mode The voltage output to the fan is varied between 0-100% allowing head pressure control in ambients down to -20 C. This is selected by turning the adjusting screw on the fan speed controller fully anti-clockwise. The minimum voltage output to the fan can be varied between 45-95% of supply voltage by adjusting the slotted screw within the minimum speed mode on the fan speed controller. 88

89 Commissioning Data UNITS FITTED WITH ELECTRONIC EXPANSION VALVE (EEV) Electronic Expansion Valves NOTE Electronic expansion valves differ to the normal thermostatic expansion valves in their ability to maintain control of the suction superheat at reduced head pressures. This can lead to significant energy savings particularly at reduced loading and low ambient temperatures. EEV step position, superheat setpoint, head pressure set point and other features can be viewed and adjusted via the microprocessor display keypad. As standard, the Intelligent Head Pressure Control option is included when the EEV option is selected. Due to the control method employed by EEVs there is no requirement to commissioning the valves during start-up (auto-commissioning). System parameters and set up values should be checked to ensure the equipment is operating normally. Head Pressure Control - Intelligent Low Noise Feature for Condenser Fan A pressure transducer is fitted to the liquid line which in turn feeds back the head pressure to the microprocessor. The condenser fan speed can then modulate via the controller to provide optimum control under varying ambient conditions. The head pressure can be monitored via the display keypad. Units fitted with optional electronic expansion valves have the head pressure factory set to 14 Barg (203 psig). This feature is included as part of the Intelligent Head Pressure Control option, as detailed above and comes as standard when the EEV option is selected. Specifically designed for night time operation as optimum low noise levels are achieved with reduced ambient temperature and room loads, this feature is also ideal for residential and other outdoor noise critical applications. Initiated by setting the microprocessor programmable time clock, the head pressure set point changes from the standard 14 Barg (203 psig) to 22 Barg (319 psig), reducing the outdoor unit fan speed and corresponding operating sound levels. 89

90 Commissioning Data HEAD PRESSURE CONTROL (GFC Models) Adjustment A 3 way mechanical regulating valve senses the compressor head pressure and allows cooling water to flow to the condenser, to by-pass the condenser, or to allow water flow to both condenser and by-pass line in order to maintain correct refrigerant head pressure. A pressure transducer is fitted to the liquid line which enables the head pressure to be monitored via the display keypad. To adjust the factory setting, insert a standard screwdriver into the slot of the adjustment screw located at item (4) illustrated below and turn the screw to adjust the pressure as necessary: (4) (1) (3) (2) (1) From cooling system (2) To condenser (3) By-pass (4) Adjustment Screw Manual Flushing Manually flush the valve and fluid piping after installing, repairing, or replacing a valve to remove filings, chips, or other foreign matter. Valves may be manually flushed by lifting the lower spring guide with screwdrivers at 2 sides of the pressure plate to open valve as illustrated in item (5) below. This does not affect valve adjustment. (5) (1) (2) (3) (4) (5) (1) Range Spring (2) Valve Spring Guide (3) Top Retainer (4) Range Adjustment Screw (5) Insert screwdrivers underneath the valve spring guide Factory Setting CAUTION If the system is located in an area with high ambient temperatures, refrigerant head pressures may remain high enough during off cycles to prevent the valve from closing completely. In such instances, the opening point pressure of the valve should be raised just enough to cause the valve to stop flow to the condenser during compressor standby periods. Units fitted with thermostatic expansion valves (TEV) have the head pressure factory set to 17 barg (247 psig). Units fitted with optional electronic expansion valves (EEV) have the head pressure factory set to 14 barg (203 psig). 90

91 Troubleshooting FAULT POSSIBLE CAUSE REMEDY / ACTION Compressor not operating. No power to compressor. Check isolator, fuses, MCBs, contactor and control circuit wiring Noisy Compressor. Head Pressure too high. Seized compressor, possibly due to lack of oil, broken valve. Defective compressor motor. Compressor phase loss. Klixon out and does not reset. Low pressure switch operated (large or complete loss of refrigerant charge). Condenser fan motor thermal trip open circuit Lack of oil. Expansion valve stuck in open position (abnormally cold suction Iine). Damaged or worn compressor bearing (excessive knocking). Condenser coil clogged or dirty. Air or other non-condensable gas in system. Overcharge of refrigerant. Head pressure controller faulty. Fan not operating or operating inefficiently. Condenser coil blocked or dirty. Replace compressor - investigate oil trapping and general installation. Check winding resistances - replace compressor. If burnt out follow burn out procedure using suction line burn-out drier. Check 3 phase supply to compressor. Sometimes it takes up to 4 hours to reset. Replace compressor if necessary. Repair leak and recharge system - if completely out evacuate before charging. Investigate and correct. Repair leaks if any, add oil if required but not too much - remember too much is as bad as too little. Investigate pipe system and trapping. Best method to pump down to see if oil can be encouraged back. If no oil still, drain compressor and measure in correct quantity. Ensure bulb is tight on suction and superheat is correct (normally 5 to 6 C). Replace power assembly or valve as necessary. Replace compressor. Clean condenser. Evacuate system and re-charge with new refrigerant. Always install new drier before evacuating. Remove excess refrigerant from system (liquid only). Check fan speed controller - if faulty - replace. Check motor - if faulty - replace. Clean condenser coil. Head pressure too low. Fan operating too fast in low ambient conditions. Check fan speed controller adjustment - if faulty - replace. Compressor short cycles or LP cutout Dirty filters. Replace. operated. Dirty or icing evaporator (reduced airflow). Defrost and/or clean. Check gas charge and expansion valve. Suction Pressure too low. Lack of refrigerant (bubbles in sight glass only as indication). Clogged filter drier (pressure / temperature drop across it). Condenser fan running at full speed in winter (full airflow). Start up problems in very low ambients. Low evaporator airflow. Flash gas (bubbles in sight glass) at expansion valve. Clogged filter drier (pressure / temperature drop across it). Obstruction in expansion valve. Check for leaks - repair and recharge system. Replace. Check fan speed controller setting - if faulty - replace. Check for low suction pressures on start-up and fit a low ambient start kit if required, or check operation of system if already fitted. Depending on model: Check fan motor speed set point. or Check fan motors, belts and drives. Investigate for refrigerant leaks, repair and recharge system. Replace. Inspect, clean or replace. 91

92 Troubleshooting FAULT POSSIBLE CAUSE REMEDY / ACTION Condenser fan not operating - Motor / fan assembly jammed Isolate unit and check free rotation of motor / fan power on. assembly. If faulty - replace. Condenser fan runs too fast. Condenser fans runs only slowly. Fault at motor terminal box supply terminals Motor internal overheat protector tripped. Power supply failure Wiring to motor HUMIDIFIER (OPTIONAL EXTRA) Faulty motor windings / capacitor Minimum speed set too low. Faulty pressure sensor. Faulty Controller. High ambient condition or excessive re-circulation of air around condenser coil. Minimum set speed setting incorrect. Incorrect pressure setting. Faulty Controller. Faulty pressure sensor. Motor wired incorrectly. Motor / capacitor faulty. Isolate and check electrical connections are secure. Carry out continuity check at terminals TK in motor terminal box. If tripped and motor hot - check bearings. If tripped and motor cold - replace motor. Check power supply at circuit breaker. Check voltage at motor terminals. Motor humming would indicate fault in motor or capacitor. Adjust head pressure controller to suit. Check electrical connections are secure at controller and pressure sensor. Replace controller and sensor (as they are matched sets). Link wires line and load to bypass controller. If motor runs full speed - replace unit. Check installation against design. Adjust as necessary. Adjust sensor screw as necessary. Replace controller and sensor (as they are matched sets). Replace controller and sensor (as they are matched sets). Check against wiring diagram - correct as required. Replace. FAULT POSSIBLE CAUSE REMEDY / ACTION Main fuses / MCB trips when Cylinder damage (shorted electrode(s)) Test with Megger - Replace cylinder. initially switched on. Humidifier called for but not filling. Water not available at cylinder. Check all mains cold water valves. Check any strainers fitted. The humidifier loads with water but does not produce steam. Too high steam delivery back pressures Cylinder inlet filter clogged Limescale inside the supply tank Drain solenoid valve faulty Check inlet solenoid valve (yellow) strainer - clean as necessary. Inlet water solenoid not operating - check for feed. Replace solenoid / control board as necessary. Mains water pressure over 8 Bar - fit pressure reducing device. Check steam delivery pipe is not blocked with debris. Clean the filter Clean the supply tank Check 24 Vac anomalous presence on the drain solenoid valve and/or replacement of drain solenoid valve The humidifier wets the underlying floor. Cylinder operating - Low Current / Low output. Supply or overflow hydraulic circuit leaking Steam delivery pipe not properly fastened to the cylinder Humidifier in start-up phase Cylinder nearing end of useful life. Check the entire hydraulic circuit Check fastening of the clamp on the steam delivery pipe Wait for impurity concentration to build up through natural drain cycle. This will allow an increase in passed current. Strip and clean or replace. 92

93 Maintenance CAUTION ALL work MUST be carried out by technically trained competent personnel. The equipment contains live electrical and moving parts, ISOLATE prior to maintenance or repair work. GENERAL MAINTENANCE FILTERS CAUTION The maintenance schedule indicates the time period between maintenance operation. Access to the various components is via key-locked doors on the front of the unit. It is good practice to check filters at each maintenance visit. Unit filter condition is monitored via the microprocessor. CAUTION COMPRESSORS The Filter Change Switch will indicate when the filters require maintenance. UPFLOW MODELS FITTED WITH REAR RETURN AIR OPTION The filter is secured within the assembly by a bracket using 2 hand-tightened fixings. The fixings should be loosened sufficiently for the bracket to free the filters for removal. The compressor oil sight glass should indicate a level of between 1/4 and 3/4 to ensure correct operation. 3 MONTHLY General 1 Examine the fan and motor assemblies for lateral and end play in the bearings. 2 Check condition of belts and pulleys. Replace as necessary and adjust tension in accordance with Airedale International recommendations. 3 Check condition of filters - replace as necessary, refer to Filters, above. 4 Check operation of filter blocked pressure switch. 5 Check condensate drain is free from dirt or obstructions. Check water runs away freely, refer to Drain Pipework, on page Check humidifier operation and that the drain and bottle are both free from significant debris/scale, refer to Humidifier (Optional Extra), on page 85. Refrigeration Circuits 1 Check the suction and discharge pressures using a service gauge manifold and compare them with the commissioning sheet. If there is any significant variation, then the fault should be found and corrected. Refer to the Troubleshooting, on page 91 section. 2 Check that the high and low pressure switches are cutting out the compressors at the correct settings, refer to Refrigeration, on page Ensure the fan head pressure controller is controlling the head pressure at the required setting as shown on the commissioning sheets. 4 The gauges can then be removed from the system. Do not forget to replace the security caps on the Schrader valves. 5 Check the compressor oil sight glass (if fitted) for correct oil level. 93

94 Maintenance 3 MONTHLY Controls Electrical Cabinet 6 MONTHLY 12 MONTHLY 1 Check operation of control system. 2 Check any alarms registered and take action as necessary. 1 Check all electrical connections for signs of overheating or arcing. 2 Check all cables for signs of chafing or physical damage. 1 Wash down cabinet using a mild detergent. 2 Treat any paint damage or rust as necessary. For units fitted with belt and pulley fans with a plummer block/pedestal bearing: 1 Grease drive and bearing. 2 Check and clean condensate pump reservoir and float switches, refer to Condensate Pump (Optional Extra), on page 84. As 3 monthly plus the following: 1 Check all electrical connections for tightness. 2 Check all refrigeration connections with leak detector. 3 Check system readings against those recorded on original commissioning sheet and investigate significant differences. 94

95 Maintenance DRIVE MAINTENANCE CAUTION All work must be carried out by technically trained competent personnel. V Belts - Correct Installation Distance of Fan Pulley from Bearing Position of Motor Slide Rail Alignment of Pulleys Several factors are important when considering the correct installation of belt drives within Airedale equipment namely: Fan bearing life is influenced by the distance at which the drive load acts from the centre line of the bearing. As the distance increases, bearing end loads become greater, with a resultant drop in life expectancy. It is important to locate the fan pulley as near as possible to the bearing, to minimise loads. Standard Airedale bearing life calculations are based about a dimension of 75mm and whilst it will not be practical to maintain this for every installation it should be adhered to as closely as possible. Our standard slide rail can accommodate all the alternative motor frames used within the Airedale range. The relationship between the fan bearing and centre line of drive have previously been identified, the motor and slide rail should therefore be located accordingly. The centre distance between fan and motor shaft is also important and should be maintained. The benefit of increased centre distance is to extend both belt and bearing life. In order to ensure that drives achieve their design life expectancy of 25,000 hours, it is important that pulleys are installed to give correct alignment. Both fan and motor shafts should be installed in such a way that they are horizontal to the fixing plane and parallel to one another. The pulleys should be fitted so that the centre of the grooves align with one another through a line at right angles to the 2 shafts. The simplest way to check the pulley alignment is with a straight edge, a length of key steel is ideally suited to this application. Hold the straight edge firmly in place across the back of the larger of the 2 pulleys and span the second pulley. If an even gap is noted, simply adjust the position of 1 pulley until alignment is achieved. If the straight edge makes contact with 1 edge of the pulley only, leaving a gap at the other, this is evidence of angular misalignment, which should be corrected accordingly. The following sketches indicate incorrect (1-3) and (4) correct alignment. 1 Pulley offset 2 Shafts out of Parallel Correct by moving either pulley (or both if necessary) along the shaft until aligned. Correct by resetting Parallel - check that over tension is not causing deflection of the supporting steel work or shafts. 3 Shafts not in Same Plane 4 Correct alignment Correct by resetting shafts in the same plane - it will normally be easiest to align fan to motor, by adjusting the position of the mounting feet on the fan side plates. CAUTION Misalignment can often be due to a combination of the above errors. 95

96 Maintenance DRIVE MAINTENANCE Fixing the Pulley CAUTION Airedale standardise on just 2 pulley types. Variable pitch pulleys have fixed bores, whilst the fixed diameter pulleys accommodate a taperlock bush. Variable pulleys are used on motors only up to 2.2 kw and retained on the shaft by means of grub screw locking onto a parallel key. Adjustment of pitch, in half turn intervals, is by a second grub screw and key arrangement. On site adjustment of Pitch Circle Diameter (PCD) may necessitate re-alignment of pulleys. Correct fixed pulley installation is indicated below, and it is important that screws are tightened properly. To Install 1 Remove the protective coating from the bore and outside of bush, and bore of hub. After ensuring that the mating tapered surfaces are completely clean and free from oil and dirt, insert bush in hub so that the holes line up. 3 Clean shaft and fit hub so shaft as 1 unit and locate in position desired, remembering that bush will nip the shaft first and then hub will be slightly drawn on to the bush. 2 Sparingly oil thread and point of grub screws, or thread and under head of cap screws. Place screws loosely in the holes threaded in hub, shown in diagram. 4 Using a hexagon wrench tighten screws gradually and alternatively to torque shown in the table below. 5 Hammer against large-end of bush, using a block or sleeve to prevent damage. (This will ensure that the bush is seated squarely in the bore). Screws will now turn a little more. Repeat this alternate hammering and screw tightening once or twice to achieve a maximum grip on the shaft. 6 If a key is to be fitted place it in the shaft keyway before fitting the bush. It is essential that it is parallel key and side fitting only and has TOP CLEARANCE. 7 After drive has been running under load check tightness of screws. 8 Fill empty holes with grease to exclude dirt. To Remove 9 Slacken all screws by several turns; remove 1 or 2 according to number of jacking holes shown in diagram. Insert screws in jacking off holes after oiling thread and point of grub screws or thread and under head of cap screws. 10 Tighten screws alternatively until bush is loosened in hub and assembly is free of the shaft. 11 Remove assembly from shaft. Bush Size Screw Tightening Torque (Nm) No of Screws Size of Screws (BSW) 3/8 3/8 7/16 1/2 Large End Dia (mm)

97 Maintenance DRIVE MAINTENANCE Belt Tensioning The relationship between the drive factors identifies that reducing belt tension forces offers increased bearing life. Correct belt tensioning techniques ensure that loads are kept to a minimum recommended belt deflection is individually specified for every drive. It is our policy that every drive assembly leaving the factory carries a clearly visible label on the fan scroll, local to the drive, identifying the recommended settings to ensure correct maintenance support. Factory Fitted Drive Label Model Ref : U***** Model Type : DFXX-XX Motor Power : 0.75 kw Fan Pulley : 132 mm PCD Motor Pulley : 84.1mm PCD Belt x No OFF : XPA 730 x 1 Tension Force : 50 N Belt Deflection : 8.50 mm Check tension of new belts after 30 mins run in NOTE: All field changes should be recorded. CAUTION Tolerance on belt deflection is + 10%in mm, for nominal 20mm, 20-22mm is acceptable. A belt tension indicator is available designed for use with all Airedale drives - heavy duty raw edge cogged V belts XPA section, Narrow Section Wrapped V Belts, SPA, SPZ. Classical-Section V Belts, A,B. Measuring Procedure L f t e L f F e 2 1 Place the tension gauge with load hook H in the middle of the free span. 2 Move the sag indicator S into position. 3 Apply section-related test force in accordance with Scale F e. In doing this pull the tension gauge at right angles to the free span. 4 Read off the deflection on the scale te of the sag indicator. 5 If necessary re-tension the belt until the calculated deflector t e has been attained. For single belt drive installations, a straight edge can be held between the back of the pulleys so that the top edge is parallel with the top of the belt. This can be used as a datum for the sag indicator. There are some disadvantages with this method so to simplify the operation, Airedale have developed dedicated tensioning guides as detailed below. The load hook can be angled to clear the straight edge if necessary. Tensioning Guide Tensioning Guide sits on top of the belt, overhanging the pulley centre lines, clear of the pulley groove. 2 Sag Indicator bites against vertical centre section of the Tensioning Guide. 3 Load Hook bites onto the free span centre of the belt, through the notch in the Tensioning Guide. Belt Tension Indicator - Part No: Tensioning Guide - Part No: Type 350 for centre to approx. 300mm Type 600 for centre over 300mm CAUTION Belt manufacturers recommend that after a 30 minute running in period under load, belt tension is checked and reset if necessary - to allow for initial belt stretching and bedding in. 97

98 98 Parts Identification SPARES For ease of identification when ordering spares or contacting Airedale about your unit, please quote the unit type, unit serial number and the date of manufacture, which can be found on the unit serial plate. A spares list for 1, 3 and 5 years will be supplied with every unit and is also available from our Spares department on request. The serial plate can be located inside Item Microprocessor Controller 2 Airflow Pressure Switches 3 Electronic Expansion Valve Driver (Optional) 4 Transformer 5 Contactors 6 MCBs 7 Service Gauge Line Access Hole 8 Mains Electric Isolator 9 Control Panel (Hinged) 10 Air Filters 11 Evaporator/Chilled Water Coil 12 Microprocessor Display Keypad 13 Electric Heaters or LPHW Coil (Optional) 14 Fan Motor 15 Humidifier (Optional) 16 Lower Blanking Panel (Hinged) 17 Centrifugal Fan 18 Serial Plate 19 Grilles 20 Spring Anti-Vibration Mount 21 Direct Drive Centrifugal Fan 22 Humidifier Sparge Pipe

99 Parts Identification Close Control Installation & Maintenance : F 076/

100 Where to Find Us Head Office: Airedale International Air Conditioning Ltd Leeds Road Rawdon Leeds LS19 6JY United Kingdom Tel: +44 (0) Fax: +44 (0) website: LITERATURE ORDER CODE PART NO: ISSUE DATE A 01/07/2007 C 09/2011 D 01/2012 E 06/2012 F 07/2012