WaterCooled. Inverter Water Cooled Air Conditioners.

Transcription

1 WaterCooled Inverter Water Cooled Air Conditioners

2 Dunnair Quality Engineering Solutions The name Dunnair is synonymous with high quality products in the commercial air-conditioning industry. Beginning with Dunn Air Conditioning in 1961 and more recently, Dunnair International and Dunnair Australia, the company continues to be a leading supplier of air-conditioning products for the Australian market. In 1994, the company was acquired by Multistack and renamed Dunnair International. In 2004, Ernest Ugazio acquired the sales and service department of Dunnair. This led to the company being divided into separate entities: Dunnair International and Dunnair Australia, the former focused on Multistack Chiller sales and spare parts; while the latter began design and development of a split ducted and rooftop packaged range. The Inverter water cooled air conditioners shown in this brochure are part of Dunnair s range of high quality units for every application. Dunnair has also become the first choice when individual engineering solutions are required. Fast-moving and responsive, Dunnair supplies made-to-measure HVAC solutions to a growing number of high profile developments across Australia. Dunnair research and development plus a strict quality control program have been fundamental to our growth, success and reputation. Dunnair units are manufactured in accordance with strict quality control standards and are MEPS rated and developed for Australian conditions. Range: Dunnair s two modern factories manufacture 16 separate product lines and some 600 different models. Dunnair can supply most products the HVAC industry requires. This new product line of Inverter water cooled air conditioners is proof that the company is working continuously to improve its product range and efficiency. Specialised Solutions: Dunnair will engineer and manufacture equipment to suit the application and building design. We will design and manufacture as required for the building, mining, transport and maritime industry. We employ mechanical engineers in all sales offices to support designers in achieving their requirements. Our promise to our clients is Tell us what you need and we will work with you to deliver it. With its head office in Melbourne, Dunnair has offices in New South Wales, Queensland, South Australia, Western Australia and Tasmania. Established 1961, Dunnair maintains a dedicated engineering and sales support staff waiting to assist you with technical and product information and provide valuable solutions for your project. Dunnair will design, build and deliver HVAC equipment to meet the most stringent specifications and difficult applications.

3 >>General The Dunnair Inverter reverse-cycle packaged series provides a higher efficiency of our already efficient standard WPR packaged range, which are designed specifically to provide all-year round comfort to room occupants. Our units are efficient, designed to be operated by occupiers via individual control systems, avoiding costly centralised plant. The inverter water-cooled range is an ideal choice for projects that need a large number of units such as high-rise offices or hotel buildings - where different zone temperature are required throughout the building. Our inverter technology will save power, take less time to reach desired temperature and oscillate closer to the desired temperature over fixed speed models. Soft start ensures lower start up current and associated lower energy consumption.this market leading product now provides a viable alternative to VRF systems. Our comprehensive range of inverter units from 4kW to 25kW allows all types of application providing a lower running cost throughout the entire life cycle of the unit. >>Features 1. DC Inverter Compressor TEMPERATURE 2. Electronic Expansion Valve 3. EC Fan (Option) 4. Tube In Tube Heat Exchanger 5. Reduced unit height 6. Stainless steel drip tray 7. BMS compatible (Modbus) 8. Blu-fin anti-corrosion coil protection 9. Powder coated galvanised steal panels 10. Pre-charged with R410a 11. Internal thermal acoustic insulation 12. Excellent C.O.P & E.E.R rating 13. external static pressure SET POINT Inverter Air Conditioner Non-Inverter Air Conditioner TIME 03

4 >>General The DUNNAIR DWAI Series represents a range of ducted, water cooled, packaged air conditioners designed to provide year round comfort to room occupiers. The DWAI units are ideal for multi-unit installations such as high-rise offices or hotel buildings, where the flexibility of individual zone control is required. Compact and reliable, these units can be installed above ceilings, or in other concealed spaces, saving valuable floor space and providing conditioned air direct to required locations. DWAI Series units are designed to be used with simple duct layouts. To take maximum advantage of this feature, units should be located as close to the space to be air conditioned as acoustic criteria allows. Multiple small units, utilizing minimal duct lengths, prove more economical than a single large central ducted unit. Designed also to suit different climates, the DWAI units are available in Reverse cycle. In office buildings, a DWAI unit system can provide the ideal off-peak system for occupied areas when the main system is not running, e.g. night time, weekends, holidays. DWAI unit systems can be designed to provide owner occupiers with individual control, thus avoiding large central plant room areas, e.g. in apartment buildings. >>Features Refrigerants Each unit is factory charged with refrigerant R410A, which has zero Ozone depletion potential. Air Coil Die formed plate type aluminium fins mechanically bonded to high efficiency inner grooved copper tubes. Water Coil Copper tube in tube type with refrigerant flow in the outside tube. Designed to a maximum water pressure of 1500kPa (215psi). Fans Forward curved double inlet fans in involute scrolls and fitted directly to a mounted motor. Speed tappings allow airflow selection to match external duct pressure. Construction Galvanised steel construction, closed cell foam lined compressor and fan compartments, with an insulated and powder coated drain tray for complete moisture protection. The drain tray is easily removed for inspection and cleaning. Air Filter (Standard) A filter integrated return air spigot is available on all models. The filter is a washable polypropylene net type. Care should be taken, when locating each unit, that enough space is provided to enable the one-piece filter to be withdrawn to its full length from either side of the unit. Compressor DWAI units use hermetically sealed high efficiency Toshiba inverter compressors. Insulation DWAI units are well insulated to minimise condensation and attenuate noise. 04 Serving the HVAC industry since 1961

5 >>Optional Features >>Unit Protection As an active market player in the commercial air conditioning industry, we understand that every project is unique. Standard manufactured units may not meet the requirements of your system design. Dunnair always welcome enquiries for special air conditioning equipment. Available options are listed below: Stainless steel drip tray 50mm thick insulation VSD on supply air fan er ESP (external static pressure) up to 500pa 2 stages or more depending on size of the unit Belt drive instead of direct drive fan All copper coils BMS output/input connection. Dunnair specialises in manufacturing equipment to suit the applications. Units are fitted with a high pressure lockout protection. These protect the unit in the event of either water flow failure in cooling mode or fan failure in heating mode. Sensors protect against low air coil temperature and loss of refrigerant. Units include an anti-rapid cycle timer for compressor on/off protection. DWAI reverse cycle units also have a low refrigerant temperature safety thermostat to protect against icing up of the water within the unit s condenser on heating mode and a pump flow verification relay to protect individual units from a loss of water flow. Convenient lockout contactor resetting is simply achieved by turning the power to the unit off and then on again, avoiding the need to gain access to each unit if the cause is failure of central water supply. Lockout protection will also reset when the thermostat switches on, or is switched to the dead zone. Each compressor has internal overload protection. The DWAI reverse cycle version has a low refrigerant temperature limit switch and a reverse cycle valve.. 05

6 >>Noise Prevention Spring Mounting System Flexible Connection 1m Air Filter Flexible Connection 1m Unit 25mm Insulation Lined Supply Air Duct Neoprene Vibration Isolation 25mm Insulation Lined Return Air Duct Safety S Tray P Tray Trap 1. Ensure distance between two units is at least 2.5m. 2. The air velocity in the supply air duct should not be greater than 3 3.5m/sec. 3. The air velocity in the return air duct should not greater than 2 5m/sec. 4. Duct insulation should be at minimum of 25mm and be perforated aluminium lined for better sound absorption. 5. The minimum length of straight supply air duct between T pieces or 90 bends must be at least 5 times the diameter of the duct. 6. Dampers and grilles should not be installed closer than 3m from the air supply spigot of the unit. 7. Whenever possible insulate the area under the unit with suitable insulation to minimize sound travel downwards through the ceiling. Area to be insulated should be at least twice the size of the base of the unit. 8. The minimum length of the return air duct should be at least 2m. If this is not possible, introduce a bend in the duct design or install a sound attenuator duct. 9. Always install unit above unoccupied areas e.g. storerooms, toilets etc. 10. Always allow sufficient space around the unit for service. Dunnair units require a minimum 500mm free area on all sides. 11. Always install a secondary safety tray under the fan coil unit (supplied by mecharical contactor) 12. Install P Trap to condensate drain outlet on fan coil unit. 13. Make sure drain has gradient to tundish 06 Serving the HVAC industry since 1961

7 >>Condensate Drain Drain Connections Clear Plastic Tube To Water Flow H=Air Static Pressure/10+20(mm) mm Drain To Tundish >>Water Supply and Return 6mm Air Vent Ball Valve Union AHU Ball Valve 2 Way Control Value and Balancing Valve Drain to Tundish (Optional) Ball Valve 6mm Air Vent Union Ball Valve (Optional) AHU Ball Valve 3 Way Control Value and Balancing Valve Drain to Tundish (Optional) 07

8 Inverter Water Cooled - Packaged Units (Horizontal) >>Inverter Water Cooled Packaged Unit - Dimensional Drawing DWAI-04 HAB DWAI-06 HAB DWAI-08 HAB DWAI-10 HAB DWAI-12 HAB Overall Size Depth (mm) Width (mm) Height (mm) Weight (kg) Spigot Sizes Return Air Spigot (mm) 450 x x x x x 400 Supply Air Spigot (mm) 304 x x x x x 203 * DWAI - 16HAB, DWAI - 20 HAB, DWAI - 25 HAB are available on request. W D H H Front view Side view W D H W Top view Rear view 08 Serving the HVAC industry since 1961

9 Packaged - Horizontal Units >>Inverter Water Cooled Packaged Unit - Specifications Overview DWAI- 04 HAB DWAI- 06 HAB DWAI- 08 HAB DWAI- 10 HAB DWAI- 12 HAB DWAI- 16 HAB DWAI- 20 HAB DWAI- 25 HAB Total Cooling Capacity* (kw) 4.1 ( ) 6.2 ( ) 8.0 ( ) 9.8 ( ) 11.5 ( ) 15.0 ( ) 20.0 ( ) 25.0 ( ) Sensible Cooling Capacity (kw) Heating Capacity** (kw) 4.3 ( ) 6.1 ( ) 8.3 ( ) 10.1 ( ) 11.7 ( ) 11.2 ( ) 15.0 ( ) 20.0 ( ) Rated Airflow (L/S) Sound Pressure Level # External Static Pressure (Pa) Power 240V/50Hz/1Ph 415V/50Hz/3Ph Electrical Input (Cooling) (kw) Nominal Max Current (A) E.E.R (Cooling) Water Flow (L/s) Water Coil Pressure Drop (kpa) Water Connections inch mm Depth Dimension mm Width Height Weight kg * Entering air C and enter water C ** Entering air and enter water C. # 1m from sound source with 1m insulated duct Units are being reviewed 09

10 >> Horizontal Water Cooled R410A >>Water source heat pump unit performance correction table Specifications Overview Cooling Capacity Correction Factor Air On ( C, WB) Total Cooling Capacity Sensible Cooling Capacity, Air On ( C,DB) * * * * * * Note: * means Sensible cooling capacity equals to Total cooling capacity Air on : Max 32 C (DB),Min 20 C (DB) / 15 C (WB); EWT : Max 40 C, Min 20 C Heating Capacity Correction Factor Air On ( C,DB) Heating Capacity Heat Absorption Capacity Input Power Note: Air on : Max 28 C (DB),Min 15 C (DB) / 15 C (WB); EWT : Max 40 C, Min 15 C Airflow Correction Factor Nominal Airflow % Total Cooling Capacity Sensible Cooling Capacity Heating Capacity Serving the HVAC industry since 1961

11 >>BMS Interface Module Net Board Code Switch Third party BMCS system Thermostat A/C Unit PCB >>Thermostat > Heat/Auto mode (Reverse Cycle Systems only). > Auto/// fan speed selection. > Temperature setting range from 16 C to 30 C. > Room temperature display. > Real time clock. 11

12 Packaged - Horizontal Units >>Inverter Water Cooled Packaged Unit - Fan Curves Performance DWAI-04 HAB DWAI-06 HAB External Static Pressure Pascal s External Static Pressure Pascal s Includes Dry Coil Static Includes Dry Coil Stati c DWAI-08 HAB DWAI-10 HAB External Static Pressure Pascal s External Static Pressure Pascals Includes Dry Coil Static Includes Dry Coil Stati c DWAI-12 HAB * DWAI - 16HAB, DWAI - 20 HAB, DWAI - 25 HAB are available on request. 240 External Static Pressure Pascal s Includes Dry Coil Stati c Serving the HVAC industry since 1961

13 Packaged - Horizontal Units >>Inverter Water Cooled Packaged Unit - Sound Pressure Curves DWAI-04 HAB A Class: 33.4dB dB 64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz DWAI-06 HAB A Class: 38.9dB Frequency (Hz) SPL(dB) dB 64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz DWAI-08 HAB A Class: 43.4dB dB 64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz 13

14 Packaged - Horizontal Units >>Inverter Water Cooled Packaged Unit - Sound Pressure Curves DWAI-10 HAB A Class: 45.5dB dB 64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz DWAI-12 HAB A Class: 47.8dB dB 64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz * DWAI - 16HAB, DWAI - 20 HAB, DWAI - 25 HAB are available on request. # 1m from sound source with 1m insulated duct 14 Serving the HVAC industry since 1961

15 Inverter Water Cooled - Packaged Units (Vertical) >>Inverter Water Cooled Packaged Unit - Dimensional Drawing DWAI4L DWAI6L DWAI8L Overall Size Depth (mm) Width (mm) Height (mm) Weight (kg) Spigot Sizes (mm) Return Air Spigot 380 x x x 611 Supply Air Spigot 304 x x x 203 DWAI10L DWAI12L Overall Size Depth (mm) Width (mm) Height (mm) Weight (kg) Spigot Sizes (mm) Return Air Spigot 420 x x 711 Supply Air Spigot 358x x 203 W S/A D Access Panel Filter Water Out Water In H H R/A D Drain Connections HP LP Access Panel W Top view Front view Side view 15

16 Packaged - Vertical Units >>Inverter Water Cooled Packaged Unit - Specifications Overview DWAI4L DWAI6L DWAI8L DWAI10L DWAI12L Total Cooling Capacity* (kw) Sensible Cooling Capacity (kw) Heating Capacity** (kw) Rated Sound Pressure Level # (db) External Static Pressure (Pa) Power 240V/50Hz/1Ph Electrical Input (Cooling) (kw) Nominal Max Current (A) E.E.R (Cooling) Water Flow (L/s) Water Coil Pressure Drop (kpa) Water Connections inch 3/4 3/ mm Depth Dimension mm Width Height Weight Kg * Entering air C and enter water C ** Entering air and enter water C. # 1m from sound source with 1m insulated duct 16 Serving the HVAC industry since 1961

17 Packaged - Vertical Units >>Inverter Water Cooled Packaged Unit - Fan Curves Performance DWAI4L DWAI6L External Static Pressure Pascal s External Static Pressure Pascals Coil Static Includes Dry Coil Stati c DWAI8L DWAI10L External Static Pressure Pascals External Static Pressure Pascals Includes Dry Coil Stati c Includes Dry Coil Stati c DWAI12L 240 External Static Pressure Pascal s Includes Dry Coil Stati c

18 Packaged - Vertical Units >>Inverter Water Cooled Packaged Unit - Sound Pressure Curves DWAI4L A Class: 42.5dB dB 64Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz DWAI6L A Class: 45.5dB Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz DWAI8L A Class: 47dB Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz 18 Serving the HVAC industry since 1961

19 Packaged - Vertical Units >>Inverter Water Cooled Packaged Unit - Sound Pressure Curves DWAI10L A Class: 52dB Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz DWAI10L A Class: 54dB Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz # 1m from sound source with 1m insulated duct 19

20 Inverter Water Cooled - Split Ducted Units >>Inverter Water Cooled Split Ducted Unit - Dimensional Drawing DWAIS4 DWAIS6 DWAIS8 DWAIS10 DWAIS12 Overall Size WxDxH (mm) Indoor 920x570x x570x x520x x660x x750x300 Outdoor 640x451x x451x x550x x550x x550x520 Weight (Kg) Indoor Outdoor Spigot Sizes Return Air Spigot 787x x x x x265 Supply Air Spigot 713x x x x x203 Indoor W Outdoor W D Front view H H H W Front view W Side view Top view D D Side view D H Top view 20 Serving the HVAC industry since 1961

21 Split Ducted Units >>Inverter Water Cooled Split Ducted Unit - Specifications Overview DWAIS4 DWAIS6 DWAIS8 DWAIS10 DWAIS12 Total Cooling Capacity*(kW) Sensible Cooling Capacity (kw) Heating Capacity** (kw) Rated Sound Pressure Level db(a) Indoor Outdoor External Static Pressure (Pa) Power 240V.1 Ph.50Hz Electrical Input (Cooling) (kw) Nominal Max Current (A) E.E.R (Cooling) Water Flow (L/s) Water Coil Pressure Drop (kpa) Water Connections Dimension mm WxDxH Weight Kg inch mm Indoor 920x570x x570x x520x x660x x750x300 Outdoor 640x451x x451x x550x x550x x550x520 Indoor Outdoor * Entering air C and enter water C ** Entering air and enter water C. # 1m from sound source with 1m insulated duct 21

22 Split Ducted Units >>Inverter Water Cooled Split Ducted Unit - Fan Curves Performance DWAIS4 DWAIS6 External Static Pressure Pascal s External Static Pressure Pascal s DWAIS8 DWAIS External Static Pressur e Pascals External Static Pressure Pascals Includes Dr y Coil Static DWAIS External Static Pressure Pascal s Serving the HVAC industry since 1961

23 Split Ducted Units >>Inverter Water Cooled Split Ducted Unit - Sound Pressure Curves DWAIS4 Indoor A Class: 30.7dB Outdoor A Class: 33.4dB 64Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz DWAIS6 Indoor A Class: 31.4dB Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz Outdoor A Class: 34.4dB Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz 23

24 Split Ducted Units >>Inverter Water Cooled Split Ducted Unit - Sound Pressure Curves DWAIS8 Indoor A Class: 46.2dB Outdoor A Class: 33.6dB Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz 64Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz DWAIS10 Indoor A Class: 48.2dB Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz 24 Serving the HVAC industry since 1961

25 Split Ducted Units >>Inverter Water Cooled Split Ducted Unit - Sound Pressure Curves Outdoor A Class: 35.4dB Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz DWAIS12 Indoor A Class: 49.2dB Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz Outdoor A Class: 36.3dB Hz 125Hz 250Hz 500Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz # 1m from sound source with 1m insulated duct 25

26 >>Wiring Diagram Single Phase DWAI-04 HAB - DWAI-12 HAB DWAI4L - DWAI12L 26 Serving the HVAC industry since 1961

27 >>Wiring Diagram Split Ducted Units DWAIS4 - DWAIS12 Note: Water and air flow switches supplied by installer. 27

28 DUNNAIR (Aust) Pty Ltd Head Office: 140 Bernard Street, Cheltenham VIC 3192 p f e salesaust@dunnair.com.au w Dunnair New South Wales: p f e salesnsw@dunnair.com.au Dunnair SA & NT: p f e salessa@dunnair.com.au Dunnair Western Australia: p f e saleswa@dunnair.com.au Dunnair Victoria: p f e salesvic@dunnair.com.au Dunnair Queensland: p f e salesqld@dunnair.com.au Dunnair Tasmania: m p e salestas@dunnair.com.au New Zealand (agent): p e salesnz@dunnair.com.au Shanghai: P: E: salesshh-china@dunnair.com.au Contact: Ms Shelly Xiong Thailand: P: E: salesth@dunnair.com.au Contact: Mr Giuseppe Di Martino Contact: Mr Jeff He Dunnair (Aust) Pty Ltd supports a policy of continuous product improvement. Therefore specification and designs are subject to change without prior notice. Dunnair (Aust) Pty Ltd accepts no responsibility for possible errors in Catalogues, brochures and other printed material. 1115v1