Centrifugal Fans direct driven with scroll. Issue 1.3 November 2012

Transcription

1 Centrifugal Fans direct driven with scroll ssue 1.3 November 212 2

2 The overall picture will decide Complete systems by Nicotra Gebhardt Depending on the model of the fan, the efficiency grade N set in accordance with the Er Directive must be achieved from 213 and 215 respectively. Efficiency grade N to Er-Directive Year Centrifugal fans with backward curved blades without housing static The efficiency grade designates a parameter in the calculation of the target energy efficiency of a fan depending on the electric input power when operating at the optimal energy efficiency point. The figure of parameter N corresponds to the target energy efficiency with a power of 1 kw. To make the selection easier for our customers, we offer complete systems as defined by the Er Directive! n order to compare the systems, the total efficiency η e of the fan without speed regulation is considered. h e = u(s) / e with housing static total Centrifugal fans with forward curved blades with housing static total h e = Total efficiency u(s) = Fan gas power when operating at the optimal energy efficiency point e = Electric input power when operating at the optimal energy efficiency point f the system has speed regulation, it will be taken into account with the part load compensation factor C c (see below): Nicotra Gebhardt can supply complete systems in all product categories which meet the Er requirements. We offer highly efficient fan systems with matching components and high efficiency drives belt and direct drive. with integrated or external control to regulate speed. with EC standard motors (E2) or internal rotor motors with brushless DC technology. and with C external rotor motors or brushless DC external rotor motors. Building blocks for best values Thanks to the decades-long experience of Nicotra Gebhardt all the components of our fans contribute to their high performance. mpellers and blades are optimised for turbulence and therefore particularly efficient. n example: With the latest development, the RLM Evo impeller, the free-running centrifugal fans of Nicotra Gebhardt achieve system efficiency grades never reached before. n addition, the brushless DC drives which Nicotra Gebhardt offers for its direct drive fans improve the system efficiency grades. The fan technology of Nicotra Gebhardt delivers highly efficient systems for all applications. η e = u(s) / e(d) C c ed = nput power of speed regulator when operating at the optimal energy efficiency point C c = part load compensation factor without speed regulation: C c = 1 with speed regulation ed 5 kw: C c = 1.4 with speed regulation ed < 5 kw: C c = -.3 ln( ed ) η e n order to take the speed regulation into account via the part load compensation factor C c, the following mathematical losses arise in accordance with the formula prescribed by Er for the following typical motor powers: ed = 4. kw: C c = 1.5 (5 %) ed = 2.2 kw: C c = 1.6 (6 %) ed =. kw: C c = 1.1 (1 %) C c η m η T η r e(d) e u(s)

3 C 6 C 8 C TEX Voltage Brushless-DC External nverter Forward curved blades galvanised sheet steel Backward curved blades coated steel Galvanised steel Coated steel Single inlet Double inlet Er status TEM/REM REM: 22. TEM: REM: RZM RZ RZ DD DDMB DDM Flow rate Media temperature Speed control mpeller Casing material nlet type B

4 Nicotra Gebhardt technologies like... utomated manufacture of compact scroll and impeller with forward curved blades Own C and Brushless-DC motor production for optimal tuniung of motor and fan! proselect Simple and reliable selection proselect is a technical selection program that allows you to configure your own individually designed fan. t provides you with the opportunity to choose from the entire range of fan types and their associated options. The result from proselect is the provision of all the technical data for your fan, including sound level data, dimension specifications and accessories. part from that, as a registered user, your purchase prices are provided. dditionally fully dimensioned drawings in dxf format are available, which can be downloaded and transferred straight into your CD system. So that you can be sure. Models and options that are technically not permissible, are automatically excluded in proselect. So there is no chance that you will configure a wrong device option. You can register as a proselect user with us, which enables us to offer you faster order processing. What this means for you is: The complete configuration of your fan with its associated system accessories and belt drive layout. The possibility to produce fans that operate via a frequency inverter. The option of saving your own fan configuration on our server. The opportunity to modify your saved configuration, even over the phone to your Nicotra Gebhardt representative. 2

5 High performance centrifugal fans DDM double width, double inlet, (DWD), with built-in, optimised external rotor motor, made of galvanised sheet steel; available in various models; mpeller with forward curved blades of galvanised steel plate Fittings ccessories TEM REM RZM DDMB RZ RZ DD DDM High performance centrifugal fans DDMB double width, double inlet, (DWD), with built-in, brushless DC external rotor motor and external commutation unit, made of galvanised sheet steel; available in various models; mpeller with forward curved blades of galvanised steel plate High performance centrifugal fans DD double width, double inlet, (DWD), built-in, optimised internal rotor motor, made of galvanised sheet steel; available in various models; mpeller with forward curved blades of galvanised steel plate High performance centrifugal fans RZ rotavent double inlet, with built-in, low-slip external rotor motor, made of galvanised sheet steel or welded and coated, with multi position feet and connecting flange at discharge; mpeller with true aerofoil blades, welded and painted system rotavent High performance centrifugal fans RZ rotavent double inlet, with built-in, brushless DC external rotor motor and external commutation unit, made of galvanised sheet steel; with multi position feet and connecting flange at discharge; mpeller with true aerofoil blades, welded and painted system rotavent High performance centrifugal fans RZM rotavent double inlet, fan with directly coupled motor fitted on pedestal and base frame, made of galvanised sheet steel with heavy duty reinforced side frame, connecting flange at discharge, mpeller with true aerofoil blades, welded and painted system rotavent High performance centrifugal fans REM/TEM single inlet, with flanged EC standard motor out of air stream, in unterschiedlichen usführungsvarianten, mpeller with true aerofoil blades, welded and painted (REM) or forward curved blades of galvanised steel plate (TEM), with or without pedestal for horizontal or vertical mounting Fittings / ccessories complete system accessories fittings and options Technical Description Descriptions Operating limits Notes 3 Technical Description

6 The best fan for your application! DDM range direct driven fans Direct driven centrifugal fans of DDM range with forward curved impeller directly mounted on the external rotor motor are the ideal solution for your applications in the HVC business. The fact of manufacturing by ourselves each fan component the casing, the impeller and motor enables us to create fans that perfectly meet the requirements of high performances and low power consumptions. The wide range of different versions and motor types allows you to find the fan exactly matching what you really need. You anyway get the generally recognized advantages of the direct drive technology : Maintenance free No transmission losses Long fan life time High reliability Low operating costs nd, more, all the additional product advantages of the DDM range are at your fingertips. Compact casing erodynamically optimized in terms of both airflow and design, scrolls are made of galvanized steel and automatically assembled using an innovative procedure, providing a sturdy and long-lasting product. without welding points for no corrosion troubles high precision manufacturing process for high quality product Real forward curved impeller The impeller has been optimized for the best efficiency, match to the special motor features. We manufacture the high performance impellers through a highly automated and innovative production process. low noise level low power consumption Optimized external rotor motor The fan impeller is directly mounted on the motor thus providing efficient motor cooling by the fan airflow. Motor speed can be adjusted either by the use of transformers and TRC regulators. Motors are generally fitted with thermal protector for against overheating. high reliability and efficiency wide range of operative conditions Vibration isolation The vibration isolation pads of the motor shaft ensures a very low noise during fan operation and no transmission of noise and vibrations to the other parts of the fan, making installation more quiet and comfortable. low noise level no noise and vibrations transmitted to the surrounding structures Easy electrical connection ll fans could be provided with connection box, terminal block or loose cable. wiring diagram sticker, placed on each fan, describes the correct electrical connection. fast and easy wiring safe operation 4

7 rogram overview: DDM range This kind of fans are specially conceived for use in dust-free environments, at temperatures up to +4 C, or higher on selected models. The performance data have been obtained in a laboratory registered by MC for MC 21/ air performance testing. Data are not certified by MC. Fan range DDM mpeller size (width and diameter) up to 15 Speed variation either by step-transformers or stepless External rotor motor with integrated thermal protector The variety of DDM We have the right fan for all your application! Many different sizes, versions and motor types are available in the DDM range. Fan models suitable for 6Hz supply are available ir Flow up to 12, Static pressure up to 8 Version Description Figure DDM Lap-jointed scroll made from galvanized steel and forward curved blades impeller directly mounted on an external rotor motor. +SCT with terminal box mounted +FL with discharge flange mounted +SB with housing feet either mounted or loose 5

8 DDM-12/126 Direct driven centrifugal fans / DDM / 25 DDM 12/126 F 1F 2 2V db V 5 Hz 35 3 DDM 12/126 F 1F 2 2V 23 V 6 Hz 7 db [1] [LO] [H] [2] [LO] 5 [H]

9 DDM-12/126 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 12/126 W Hz W 1/min F 1F 2 2V * [1/2] ~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 12/126 μf V C kg kg/m³ F 1F 2 2V B EXT B 6M21 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 12/127 F 1F 2 2V ±1 8 ±

10 DDM-133/126 Direct driven centrifugal fans / DDM / DDM 133/126 F7 1F 2 4V +FL db V 5 Hz V [B1] DDM 133/126 F7 1F 2 4V +FL 23 V 6 Hz db V [B2]

11 DDM-133/126 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 133/126 W Hz W 1/min F7 1F 2 4V +FL * [B1/B2] 6 2 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 133/126 μf V C kg kg/m³ F7 1F 2 4V +FL B NT B 6M27 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 133/127 F7 1F 2 4V +FL Ø

12 DDM-133/1 Direct driven centrifugal fans / DDM / 4 DDM 133/1 6 1F 2 1V +FL +SCT 23 V 5 Hz 5 DDM 133/1 6 1F 2 1V +FL +SCT 23 V 6 Hz db V V V 1V [C1] db [C2] V V V 5 1V DDM 133/1 C 1F 2 1V +FL 23 V 5 Hz 5 DDM 133/1 C 1F 2 1V +FL 23 V 6 Hz db [C3] db [C4] V 55 14V 62 18V 67 23V DDM 133/1 C6 1F 2 4V +FL 23 V 5 Hz db V [C5] DDM 133/1 C6 1F 2 4V +FL 23 V 6 Hz db 63 6 [C6] V

13 DDM-133/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 133/1 W Hz W 1/min 6 1F 2 1V +FL (2) [C1/C2] 2 1~ 5/ C 1F 2 1V +FL (2) [C3/C4] 2 1~ 5/ C6 1F 2 4V +FL * [C5/C6] 6 2 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 133/1 μf V C kg kg/m³ 6 1F 2 1V +FL F NT B 612LT C 1F 2 1V +FL B EXT B 612FW C6 1F 2 4V +FL B EXT B 612YC (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 133/1 6 1F 2 1V +FL Ø DDM 133/1 C 1F 2 1V +FL Ø DDM 133/1 C6 1F 2 4V +FL Ø

14 DDM-146/1 Direct driven centrifugal fans / DDM / DDM 146/1 8 1F 2 1V +FL db 23 V 5 Hz [D1] V V V V DDM 146/1 C2 1F 2 1V +FL 66 db 23 V 5 Hz [D3] V V 53 14V 57 1V DDM 146/1 C2 1F 2 1V +FL 23 V 6 Hz 77 db [D4] DDM 146/1 C5 1F 4 4V +FL 23 V 5 Hz db [D5] DDM 146/1 C5 1F 4 4V +FL 23 V 6 Hz 63 db [D6] V 57 14V 61 18V 6623V

15 DDM-146/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 146/1 W Hz W 1/min 8 1F 2 1V +FL (2) [D1] ~ C2 1F 2 1V +FL (1) [D3/D4] ~ 5/ C5 1F 4 1V +FL (2) [D5/D6] 2 4 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 146/1 μf V C kg kg/m³ 8 1F 2 1V +FL F NT B 612Z C2 1F 2 1V +FL F EXT B 612YU C5 1F 4 1V +FL B NT B 612MH (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 146/1 8 1F 2 1V +FL Ø DDM 146/1 C2 1F 2 1V +FL Ø DDM 146/1 C5 1F 2 1V +FL Ø

16 DDM-225/24 Direct driven centrifugal fans / DDM / DDM 225/24 E6G334 1F 4 1V +FL +SCT S L 4 W [E1] 7 db 23 V 5 Hz 5 4 DDM 225/24 E6G334 1F 4 1V +FL +SCT S [E2] 23 V 6 Hz db 2 1 1V V V V V 56 1V 56 18V V DDM 225/24 E6G345 1F 4 1V +FL +SCT db [E3] 23 V 5 Hz V V V 66 1V

17 DDM-225/24 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 225/24 W Hz W 1/min E6G334 1F 4 1V +FL +SCT S (2) [E1/E2] 3 4 1~ 5/ E6G345 1F 4 1V +FL +SCT (2) [E3/E4] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 225/24 μf V C kg kg/m³ E6G334 1F 4 1V +FL +SCT S F EXT B 612CT E6G345 1F 4 1V +FL +SCT F EXT B 6M212 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 225/24 E6G334 1F 4 1V +FL +SCT S Ø DDM 225/24 E6G345 1F 4 1V +FL +SCT Ø

18 DDM-28/24 Direct driven centrifugal fans / DDM / L W DDM 28/24 E6G3 1F 4 1V +SCT V 81 db V 5 Hz V [F1] V 14V L DDM 28/24 E6G376 3F 4 2V +SCTV W7 77 4/4 V 5 Hz db [F3] V Y 4V

19 DDM-28/24 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 28/24 W Hz W 1/min E6G3 1F 4 1V +SCT (2) [F1] 6 4 1~ E6G376 3F 4 1V +SCT (1) [F3] 4 3~ D/Y Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 28/24 μf V C kg kg/m³ E6G3 1F 4 1V +SCT F EXT B 612XE E6G376 3F 4 1V +SCT 55 F EXT B 6M2121 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 28/24 E6G334 1F 4 1V +SCT DDM 28/24 E6G376 1F 4 1V +SCT

20 DDM-7/7 Direct driven centrifugal fans / DDM / DDM 7/7 E6G345 1F 4 1V +SCT 64 [G1] db V 5 Hz DDM 7/7 E6G345 1F 4 1V +SCT 23 V 6 Hz V 63 14V 18V 23V 81 1V 6314V 68 18V 23V [G2] 78 db DDM 7/7 E6G334 1F 4 1V +SCT 62 [G3] db 23 V 5 Hz V 6 14V 18V 76 23V DDM 7/7 E6G334 1F 4 1V +SCT V 6 Hz V V V 1V [G4] 76 db DDM 7/7 E5G342 1F 4 1V +SCT 23 V 5 Hz [G5] 2 db V 61 14V 66 18V 7 23V

21 DDM-7/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 7/7 W Hz W 1/min E6G345 1F 4 1V +SCT (2) [G1/G2] ~ 5/ E6G334 1F 4 1V +SCT (2) [G3/G4] 3 4 1~ 5/ E5G342 1F 4 1V +SCT (2) [G5] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 7/7 μf V C kg kg/m³ E6G345 1F 4 1V +SCT F EXT B 6M2WL E6G334 1F 4 1V +SCT F EXT B 6M2Y8 E5G342 1F 4 1V +SCT F EXT B 6M2L7 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 7/7 E6G345 1F 4 1V +SCT DDM 7/7 E6G334 1F 4 1V +SCT DDM 7/7 E5G342 1F 4 1V +SCT

22 DDM-7/7 Direct driven centrifugal fans / DDM / DDM 7/7 E5G331 1F 4 1V +SCT 23 V 5 Hz 67 [G7] 66 db DDM 7/7 E5G331 1F 4 1V +SCT db [G8] 23 V 6 Hz V V 1V 54 14V DDM 7/7 E6G337 1F 4 3V +SCT [G] 23 V 5 Hz db [LO] 6 [ME] [H] 25 DDM 7/7 E5G341 1F 4 3V +SCT 23 V 5 Hz db [G11] [LO] 63[ME] 67 [H]

23 DDM-7/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 7/7 W Hz W 1/min E5G331 1F 4 1V +SCT (2) [G7/G8] ~ 5/ E6G337 1F 4 3V +SCT * [G] ~ E5G341 1F 4 3V +SCT * [G11] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 7/7 μf V C kg kg/m³ E5G331 1F 4 1V +SCT F EXT B 6M2M E6G337 1F 4 3V +SCT F EXT B 6M22U E5G341 1F 4 3V +SCT F EXT B 6M2U8 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 7/7 E5G331 1F 4 1V +SCT DDM 7/7 E6G337 1F 4 3V +SCT DDM 7/7 E5G341 1F 4 3V +SCT

24 DDM-7/7 Direct driven centrifugal fans / DDM / 25 2 DDM 7/7 E6G33 3F 4 1V +SCT [G13] 23/4 V 5 Hz db DDM 7/7 E6G33 3F 4 1V +SCT 23/4 V 6 Hz 76 db [G14] V V DDM 7/7 E5G343 3F 4 1V +SCT 23/4 V 5 Hz db [G15] 3 25 DDM 7/7 E5G343 3F 4 1V +SCT 254/44 V 6 Hz [G16] db V V DDM 7/7 E5G332 1F 6 1V +SCT [G17] 64 db V 5 Hz 67 1V 57 14V 62 18V 23V DDM 7/7 E5G332 1F 6 1V +SCT 23 V 6 Hz 66 [G18] 67 db

25 DDM-7/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 7/7 W Hz W 1/min E6G33 3F 4 1V +SCT * [G13/G14] 3 4 3~ D/Y 5/ E5G343 3F 4 1V +SCT * [G15/G16] ~ D/Y 5/ E5G332 1F 6 1V +SCT (2) [G17/G18] 6 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 7/7 μf V C kg kg/m³ E6G33 3F 4 1V +SCT 55 F EXT B 6M2WM E5G343 3F 4 1V +SCT 55 F EXT B 6M22H E5G332 1F 6 1V +SCT F EXT B 6M2Z4 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 7/7 E6G33 3F 4 1V +SCT DDM 7/7 E5G343 3F 4 1V +SCT DDM 7/7 E5G332 1F 6 1V +SCT

26 DDM-7/ Direct driven centrifugal fans / DDM / 25 DDM 7/ E6G334 1F 4 1V +SCT 23 V 5 Hz 35 DDM 7/ E6G334 1F 4 1V +SCT 23 V 6 Hz [H1] db db [H2] V 57 14V 67 18V 23V DDM 7/ E6G345 1F 4 1V +SCT 23 V 5 Hz db [H3] DDM 7/ E6G345 1F 4 1V +SCT 23 V 6 Hz 76 [H4] 77 db V 6 14V 68 18V 23V

27 DDM-7/ Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 7/ W Hz W 1/min E6G334 1F 4 1V +SCT (2) [H1/H2] 3 4 1~ 5/ E6G345 1F 4 1V +SCT (2) [H3/H4] ~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 7/ μf V C kg kg/m³ E6G334 1F 4 1V +SCT F EXT B 6M2L6 E6G345 1F 4 1V +SCT F EXT B 6M25X (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 7/ E6G334 1F 4 1V +SCT DDM 7/ E6G345 1F 4 1V +SCT

28 DDM-/7 Direct driven centrifugal fans / DDM / DDM /7 E6G351 1F 4 1V +SCT DDM /7 E6G345 1F 4 1V +SCT 23 V 5 Hz db 23 V 5 Hz [1] V 61 14V 18V 78 23V V V db [3] 76 18V V DDM /7 E6G351 1F 4 1V +SCT 23 V 6 Hz db [2] DDM /7 E6G334 1F 4 1V +SCT 23 V 5 Hz db [5] V V V 1V

29 DDM-/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM /7 W Hz W 1/min E6G351 1F 4 1V +SCT (2) [1/2] ~ 5/ E6G345 1F 4 1V +SCT (2) [3] ~ E6G334 1F 4 1V +SCT (2) [5] 3 4 1~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM /7 μf V C kg kg/m³ E6G351 1F 4 1V +SCT F EXT B 6M2M E6G345 1F 4 1V +SCT F EXT B 6M22 E6G334 1F 4 1V +SCT F EXT B 6M2N (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM /7 E6G351 1F 4 1V +SCT DDM /7 E6G345 1F 4 1V +SCT DDM /7 E6G334 1F 4 1V +SCT

30 DDM-/7 Direct driven centrifugal fans / DDM / 4 35 DDM /7 E6G352 1F 4 3V +SCT 23 V 5 Hz [7] db [LO] 6 [ME] 7 [H] DDM /7 E6G232 1F 4 3V db 23 V 5 Hz [] DDM /7 E6G232 1F 4 3V 23 V 6 Hz 77 [1] 77 db [LO] [ME] [H] 77 [LO] [ME] 68 [H] DDM /7 E6G333 1F 6 1V +SCT db 23 V 5 Hz [11] 25 2 DDM /7 E6G333 1F 6 1V +SCT 23 V 6 Hz 68 db [12] V 54 14V 67 18V 23V

31 DDM-/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM /7 W Hz W 1/min E6G352 1F 4 3V +SCT * [7] ~ E6G232 1F 4 3V * [/1] ~ 5/ E6G333 1F 6 1V +SCT (2) [11/12] 2 6 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM /7 μf V C kg kg/m³ E6G352 1F 4 3V +SCT F EXT B 6M2U E6G232 1F 4 3V F EXT B 6M2ZN E6G333 1F 6 1V +SCT F EXT B 6M2H8 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM /7 E6G352 1F 4 3V +SCT DDM /7 E6G232 1F 4 3V +SCT DDM /7 E6G333 1F 6 1V +SCT

32 DDM-/7 Direct driven centrifugal fans / DDM / DDM /7 E6G336 1F 6 3V +SCT 23 V 5 Hz [13] 68 db LW7 DDM /7 E6G336 1F 6 3V +SCT 23 V 6 Hz db [14] 7 [H] [LO] 56 [ME] [H] 5 [ME] 6 [LO] DDM /7 E6G363 3F 4 1V +SCT 23/4 V 5 Hz DDM /7 E6G363 3F 4 1V +SCT 7 254/44 V 6 Hz 81 db dB [15] [16] 86 44V V DDM /7 E6G33 3F 4 1V +SCT 23/4 V 5 Hz 76 db [17] DDM /7 E6G33 3F 4 1V +SCT 23/4 V 6 Hz 76 db [18] 76 4V V

33 DDM-/7 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM /7 W Hz W 1/min E6G336 1F 6 3V +SCT * [13/14] 2 6 1~ 5/ E6G363 3F 4 1V +SCT * [15/16] ~ D/Y 5/ E6G33 3F 4 1V +SCT * [17/18] 3 4 3~ D/Y 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM /7 μf V C kg kg/m³ E6G336 1F 6 3V +SCT F EXT B 6M2W E6G363 3F 4 1V +SCT 55 F EXT B 612WT E6G33 3F 4 1V +SCT 55 F EXT B 6M2WR (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM /7 E6G336 1F 6 3V +SCT DDM /7 E6G363 3F 4 1V +SCT DDM /7 E6G33 3F 4 1V +SCT

34 DDM-/7 TGHT Direct driven centrifugal fans / DDM / 35 DDM /7 TGHT E6G334 1F 4 1V +SCT 23 V 5 Hz 3 db 25 [J1] V V V 1V DDM /7 TGHT E6G345 1F 4 1V +SCT 64 7 db 23 V 5 Hz [J3] V 63 14V 18V 7 23V DDM /7 TGHT E6G345 1F 4 1V +SCT 8 db [J4] V 6 Hz

35 DDM-/7 TGHT Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM /7 TGHT W Hz W 1/min E6G334 1F 4 1V +SCT (2) [J1] 3 4 1~ E6G345 1F 4 1V +SCT (2) [J3/J4] ~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM /7 TGHT μf V C kg kg/m³ E6G334 1F 4 1V +SCT F EXT B 6M2WX E6G345 1F 4 1V +SCT F EXT B 6M2WY (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM /7 TGHT E6G334 1F 4 1V +SCT DDM /7 TGHT E6G345 1F 4 1V +SCT

36 DDM-/ Direct driven centrifugal fans / DDM / 4 DDM / E6G3 1F 4 1V +SCT 23 V 5 Hz 77 db 5 4 DDM / E6G3 1F 4 1V +SCT 23 V 7 db 6 Hz [K2] [K1] V 66 14V 18V 8 23V DDM / E6G351 1F 4 1V +SCT 76 db 23 V 5 Hz [K3] V V V 67 1V DDM / E6G253 1F 4 1V 23 V 5 Hz [K5] 77 db V 61 14V 7 18V 77 23V DDM / E6G253 1F 4 1V V 6 Hz 77 db [K6]

37 DDM-/ Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM / W Hz W 1/min E6G3 1F 4 1V +SCT (2) [K1/K2] 6 4 1~ 5/ E6G351 1F 4 1V +SCT (2) [K3] ~ E6G253 1F 4 1V (2) [K5/K6] ~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM / μf V C kg kg/m³ E6G3 1F 4 1V +SCT F EXT B 6M2Z E6G351 1F 4 1V +SCT F EXT B 6M2H5 E6G253 1F 4 1V F EXT B 6M2R8 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM / E6G3 1F 4 1V +SCT DDM / E6G351 1F 4 1V +SCT DDM / E6G253 1F 4 1V +SCT

38 DDM-/ Direct driven centrifugal fans / DDM / DDM / E6G345 1F 4 1V +SCT 23 V 5 Hz 76 db 77 [K7] 7 23V V 61 14V 67 1V DDM / E6G334 1F 4 1V +SCT 23 V 5 Hz V [K] 68 db 23V V V DDM / E6G352 1F 4 3V +SCT 23 V 5 Hz [LO] 5 76 db [K11] [ME] 76 [H]

39 DDM-/ Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM / W Hz W 1/min E6G345 1F 4 1V +SCT (2) [K7] ~ E6G334 1F 4 1V +SCT (2) [K] 3 4 1~ E6G352 1F 4 3V +SCT * [K11] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM / μf V C kg kg/m³ E6G345 1F 4 1V +SCT F EXT B 6M2XN E6G334 1F 4 1V +SCT F EXT B 6M2K1 E6G352 1F 4 3V +SCT F EXT B 6M2W (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM / E6G345 1F 4 1V +SCT DDM / E6G334 1F 4 1V +SCT DDM / E6G352 1F 4 3V +SCT

40 DDM-/ Direct driven centrifugal fans / DDM / DDM / E6G255 1F 4 3V 23 V 7 5 Hz db 7 7 [K13] DDM / E6G255 1F 4 3V 23 V 6 Hz [LO] [ME] 78 [H] 85 [LO] [ME] 76 [H] [K14] 83 db DDM / E6G363 3F 4 1V +SCT 23/4 V 5 Hz 77 [K15] 78 db DDM / E6G363 3F 4 1V +SCT 254/44 V 6 Hz 7 db [K16] V V DDM / E6G342 1F 6 1V +SCT V Hz [K17] 25 DDM / E6G342 1F 6 1V +SCT 23 V 68 6 Hz 7 db db [K18] V 56 14V 64 18V 23V

41 DDM-/ Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM / W Hz W 1/min E6G255 1F 4 3V * [K13/K14] ~ 5/ E6G363 3F 4 1V +SCT * [K15/K16] ~ D/Y 5/ E6G342 1F 6 1V +SCT (2) [K17/K18] ~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM / μf V C kg kg/m³ E6G255 1F 4 3V F EXT B 6M27 E6G363 3F 4 1V +SCT 55 F EXT B 6M28 E6G342 1F 6 1V +SCT F EXT B 6M2NM (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM / E6G255 1F 4 3V DDM / E6G363 3F 4 1V +SCT DDM / E6G342 1F 6 1V +SCT

42 DDM-/ Direct driven centrifugal fans / DDM / DDM / E6G333 1F 6 1V +SCT 23 V 5 Hz [K1] 68 db DDM / E6G333 1F 6 1V +SCT 23 V 6 Hz 67 db 68 [K2] V 51 14V 5 18V 67 23V DDM / E6G336 1F 6 3V +SCT 23 V 5 Hz [K21] 67dB 68 [LO] 56 [ME] 61 [H] DDM / E6G336 1F 6 3V +SCT 23 V 6 Hz db 67 [K22] 58 5 [ME] 57 [LO] [H] DDM / E6G343 3F 6 1V +SCT 23/4 V 5 Hz [K23] 25 2 DDM / E6G343 3F 6 1V +SCT 23/4 V 6 Hz [K24] 1 db db V V

43 DDM-/ Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM / W Hz W 1/min E6G333 1F 6 1V +SCT (2) [K1/K2] 2 6 1~ 5/ E6G336 1F 6 3V +SCT * [K21/K22] 2 6 1~ 5/ E6G343 3F 6 1V +SCT * [K23/K24] ~ D/Y 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM / μf V C kg kg/m³ E6G333 1F 6 1V +SCT F EXT B 6M2M2 E6G336 1F 6 3V +SCT F EXT B 6M2WU E6G343 3F 6 1V +SCT 44 F EXT B 6M2G2 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM / E6G333 1F 6 1V +SCT DDM / E6G336 1F 4 3V +SCT DDM / E6G343 3F 6 1V +SCT

44 DDM-/ TGHT Direct driven centrifugal fans / DDM / DDM / TGHT E6G345 1F 4 1V +SCT db 23 V 5 Hz [L1] V V

45 DDM-/ TGHT Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM / TGHT W Hz W 1/min E6G345 1F 4 1V +SCT (2) [L1] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM / TGHT μf V C kg kg/m³ E6G345 1F 4 1V +SCT F EXT B 6M2L8 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM / TGHT E6G345 1F 4 1V +SCT

46 DDM-1/8 Direct driven centrifugal fans / DDM / DDM 1/8 E6G3 1F 4 1V +SCT db V 7 14V 23 V 5 Hz 77 [M1] V V DDM 1/8 E6G364 1F 4 1V +SCT 23 V 5 Hz V V [M3] db V 7 23V DDM 1/8 E6G253 1F 4 1V 76 [M5] 23 V 5 Hz 76 db V 1 14V V V

47 DDM-1/8 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/8 W Hz W 1/min E6G3 1F 4 1V +SCT (2) [M1] 6 4 1~ E6G364 1F 4 1V +SCT (2) [M3] ~ E6G253 1F 4 1V (2) [M5] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/8 μf V C kg kg/m³ E6G3 1F 4 1V +SCT F EXT B 612Z E6G364 1F 4 1V +SCT F EXT B 6M2X4 E6G253 1F 4 1V F EXT B 6M25N (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/8 E6G3 1F 4 1V +SCT DDM 1/8 E6G364 1F 4 1V +SCT DDM 1/8 E6G253 1F 4 1V

48 DDM-1/8 Direct driven centrifugal fans / DDM / 5 4 DDM 1/8 E6G2 1F 4 3V [M7] 76 db 23 V 5 Hz 77 3 [H] [ME] [LO] DDM 1/8 E6G363 3F 4 1V +SCT 77 23/4 V 5 Hz [M] db 7 3 4V

49 DDM-1/8 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/8 W Hz W 1/min E6G2 1F 4 3V * [M7] ~ E6G363 3F 4 1V +SCT * [M] ~ D/Y Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/8 μf V C kg kg/m³ E6G2 1F 4 3V F EXT B 6125 E6G363 3F 4 1V +SCT 55 F EXT B 6M2X (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/8 E6G2 1F 4 3V DDM 1/8 E6G363 3F 4 1V +SCT

50 DDM-1/8 Direct driven centrifugal fans / DDM / DDM 1/8 E6G362 1F 6 1V +SCT V 5 Hz db 67 7 [M11] V 63 14V 7 18V 23V DDM 1/8 E6G362 1F 6 1V +SCT db 23 V 6 Hz 25 [M12] DDM 1/8 E6G342 1F 6 1V +SCT [M13] 66 db 23 V 5 Hz V 67 23V V V

51 DDM-1/8 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/8 W Hz W 1/min E6G362 1F 6 1V +SCT (2) [M11/M12] ~ 5/ E6G342 1F 6 1V +SCT (2) [M13] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/8 μf V C kg kg/m³ E6G362 1F 6 1V +SCT F EXT B 6M2N E6G342 1F 6 1V +SCT F EXT B 6M2WZ (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/8 E6G362 1F 6 1V +SCT DDM 1/8 E6G342 1F 6 1V +SCT

52 DDM-1/8 Direct driven centrifugal fans / DDM / L W DDM 1/8 E6G261 1F 6 3V 7 76 db [M15] V 5 Hz [LO] [ME] 7[H] DDM 1/8 E6G344 1F 6 3V +SCT 23 V 5 Hz db db [M1] 7 [M17] [LO] DDM 1/8 E6G343 3F 6 1V +SCT 23/4 V 5 Hz 4V [ME] [H] L W7 3 DDM 1/8 E6G343 3F 6 1V +SCT 254/44 V 6 Hz db 25 [M2] V

53 DDM-1/8 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/8 W Hz W 1/min E6G261 1F 6 3V * [M15] ~ E6G344 1F 6 3V +SCT * [M17] ~ E6G343 3F 6 1V +SCT * [M1/M2] ~ D/Y 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/8 μf V C kg kg/m³ E6G261 1F 6 3V F EXT B 6M2L E6G344 1F 6 3V +SCT F EXT B 6M24 E6G343 3F 6 1V +SCT 44 F EXT B 6M2XC (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/8 E6G261 1F 6 3V DDM 1/8 E6G344 1F 6 3V +SCT DDM 1/8 E6G343 3F 6 1V +SCT

54 DDM-1/1 Direct driven centrifugal fans / DDM / L W DDM 1/1 E6G3 1F 4 1V +SCT [N1] V V 5 Hz 8 db 23V V 7 1 1V DDM 1/1 E6G2 1F 4 1V 23 V 5 Hz [N3] 8 db 14V 23V DDM 1/1 E6G2 1F 4 1V 22 V 6 Hz V 65 1V [N6] 81 db 76 18V V DDM 1/1 E6G364 1F 4 1V +SCT 23 V 5 Hz [N5] 4 db 3 23V V V 62 1V

55 DDM-1/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/1 W Hz W 1/min E6G3 1F 4 1V +SCT (2) [N1] 6 4 1~ E6G2 1F 4 1V (2) [N3/N4] 6 4 1~ 5/ E6G364 1F 4 1V +SCT (2) [N5] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/1 μf V C kg kg/m³ E6G3 1F 4 1V +SCT F EXT B 6M2Z6 E6G2 1F 4 1V F EXT B 6M2CY E6G364 1F 4 1V +SCT F EXT B 6M2 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/1 E6G3 1F 4 1V +SCT DDM 1/1 E6G2 1F 4 1V DDM 1/1 E6G364 1F 4 1V +SCT

56 DDM-1/1 Direct driven centrifugal fans / DDM / 5 4 DDM 1/1 E6G253 1F 4 1V 23 V [N7] 5 Hz db V 78 18V V 68 1V DDM 1/1 E6G2 1F 4 3V 23 V 5 Hz [N] 78 db 78 3 [H] 78 2 [ME] 1 [LO]

57 DDM-1/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/1 W Hz W 1/min E6G253 1F 4 1V (2) [N7] ~ E6G2 1F 4 3V * [N] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/1 μf V C kg kg/m³ E6G253 1F 4 1V F EXT B 6M2XF E6G2 1F 4 3V F EXT B 6M2Z8 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/1 E6G253 1F 4 1V DDM 1/1 E6G2 1F 4 3V

58 DDM-1/1 Direct driven centrifugal fans / DDM / 5 4 DDM 1/1 M 3F 4 2V +SCT [N11] 82 db 4/4 V 5 Hz V Y 84 4V g DDM 1/1 E6G376 3F 4 2V 4/4 V 5 Hz 78 7 [N13] 8 db V g V Y

59 DDM-1/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/1 W Hz W 1/min M 3F 4 2V +SCT (2)/(3) [N11] 1 4 3~ D/Y E6G376 3F 4 2V +SCT (1) [N13] 4 3~ D/Y Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/1 C kg kg/m³ M 3F 4 2V +SCT 54 F NT B 6M2122 E6G376 3F 4 2V +SCT 55 F EXT B 6M21Y (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/1 M 3F 4 2V +SCT DDM 1/1 E6G376 3F 4 2V +SCT

60 DDM-1/1 Direct driven centrifugal fans / DDM / 25 2 DDM 1/1 E6G362 1F 6 1V +SCT 23 V 5 Hz [N15] db DDM 1/1 E6G362 1F 6 1V +SCT 23 V 6 Hz 76 [N16] 77 db V 64 14V 7 18V 23V V V V 1V DDM 1/1 E6G342 1F 6 1V +SCT 23 V 5 Hz db [N17] DDM 1/1 E6G261 1F 6 3V +SCT 23 V 5 Hz 7 [LO] [ME] 76 [H] [N1] 7 db DDM 1/1 E6G261 1F 6 3V +SCT 23 V 6 Hz [LO] [ME] [H] [N2] 77 db

61 DDM-1/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/1 W Hz W 1/min E6G362 1F 6 1V +SCT (2) [N15/N16] ~ 5/ E6G342 1F 6 1V +SCT (2) [N17] ~ E6G261 1F 6 3V * [N1/N2] ~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/1 μf V C kg kg/m³ E6G362 1F 6 1V +SCT F EXT B 6M2N1 E6G342 1F 6 1V +SCT F EXT B 6M2G E6G261 1F 6 3V F EXT B 6M2FF (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/1 E6G362 1F 6 1V +SCT DDM 1/1 E6G342 1F 6 1V +SCT DDM 1/1 E6G261 1F 6 3V

62 DDM-1/1 Direct driven centrifugal fans / DDM / L 25 W DDM 1/1 E6G344 1F 6 3V +SCT 23 V 5 Hz [N21] 68 db [ME] [H] [LO] DDM 1/1 E6G366 3F 6 1V +SCT 23/4 V 5 Hz [N23] db DDM 1/1 E6G366 3F 6 1V +SCT 254/44 V 6 Hz db [N24] V V DDM 1/1 E6G343 3F 6 1V +SCT 68 23/4 V 5 Hz db [N25] DDM 1/1 E6G343 3F 6 1V +SCT 254/44 V 6 Hz [N26] db 44V V

63 DDM-1/1 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 1/1 W Hz W 1/min E6G344 1F 6 3V +SCT * [N21] ~ E6G366 3F 6 1V +SCT * [N23/N24] ~ D/Y 5/ E6G343 3F 6 1V +SCT * [N25/N26] ~ D/Y 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 1/1 μf V C kg kg/m³ E6G344 1F 6 3V +SCT F EXT B 6M2XM E6G366 3F 6 1V +SCT 55 F EXT B 6M25T E6G343 3F 6 1V +SCT 44 F EXT B 6M2G3 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 1/1 E6G344 1F 6 3V +SCT DDM 1/1 E6G366 3F 6 1V +SCT DDM 1/1 E6G343 3F 6 1V +SCT

64 DDM-12/ Direct driven centrifugal fans / DDM / V DDM 12/ E6G3 1F 6 1V +SCT 23 V 5 Hz V 68 [O1] 76 db 18V 76 23V DDM 12/ E6G2 1F 6 1V 23 V 5 Hz 76 [O3] 78 db V 5 14V DDM 12/ E6G3 1F 6 3V +SCT 23 V 5 Hz [O5] db [LO] 7 [ME] [H]

65 DDM-12/ Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 12/ W Hz W 1/min E6G3 1F 6 1V +SCT (2) [O1] ~ E6G2 1F 6 1V (2) [O3] 5 6 1~ E6G3 1F 6 3V +SCT * [O5] 5 6 1~ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 12/ μf V C kg kg/m³ E6G3 1F 6 1V +SCT F EXT B 612N E6G2 1F 6 1V F EXT B 612CL E6G3 1F 6 3V +SCT F EXT B 612C (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 12/ E6G3 1F 6 1V +SCT DDM 12/ E6G2 1F 6 1V DDM 12/ E6G3 1F 6 3V +SCT

66 DDM-12/ Direct driven centrifugal fans / DDM / 35 3 DDM 12/ E6G377 3F 6 1V +SCT 23/4 V 5 Hz 81 [O7] 7 db V

67 DDM-12/ Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 12/ W Hz W 1/min E6G377 3F 6 1V +SCT * [O7] ~ D/Y Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 12/ C kg kg/m³ E6G377 3F 6 1V +SCT 55 F EXT B 6121R (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 12/ E6G377 3F 6 1V +SCT

68 DDM-12/12 Direct driven centrifugal fans / DDM / DDM 12/12 M 3F 4 2V +SCT 4/4 V 5 Hz [1] V 83 23V 28V 4V db DDM 12/12 E6G3 1F 6 1V +SCT 23 V 5 Hz 3 25 [3] db V 14V 66 18V 23V V 63 DDM 12/12 E6G2 1F 6 1V 23 V 5 Hz 7 14V 7 [5] 76 db V V DDM 12/12 E6G2 1F 6 1V 23 V 6 Hz [6] 78 db

69 DDM-12/12 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 12/12 W Hz W 1/min M 3F 4 2V +SCT (2)/(3) [1] ~ D/Y E6G3 1F 6 1V +SCT (2) [3] ~ E6G2 1F 6 1V (2) [5/6] 5 6 1~ 5/ Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 12/12 μf V C kg kg/m³ M 3F 4 2V +SCT 54 F EXT B 6M2123 E6G3 1F 6 1V +SCT F EXT B 612N5 E6G2 1F 6 1V F EXT B 612 (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 12/12 M 3F 4 2V +SCT DDM 12/12 E6G3 1F 6 1V +SCT DDM 12/12 E6G2 1F 6 1V

70 DDM-12/12 Direct driven centrifugal fans / DDM / DDM 12/12 E6G3 1F 6 3V +SCT 23 V 5 Hz 7 7 [LO] 67 [7] db [ME] [H] DDM 12/12 E6G377 3F 6 1V +SCT 23/4 V 5 Hz [] db

71 DDM-12/12 Direct driven centrifugal fans / DDM / Speed control Curves motor power oles hases Connection Mains frequency Max. power Max. current consumption consumption Speed DDM 12/12 W Hz W 1/min E6G3 1F 6 3V +SCT * [7] 5 6 1~ E6G377 3F 6 1V +SCT * [] ~ D/Y Operating Capacitor capacitor voltage Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDM 12/12 μf V C kg kg/m³ E6G3 1F 6 3V +SCT F EXT B 612K2 E6G377 3F 6 1V +SCT 55 F EXT B 612R (1) = Speed controllable via Transformer (2) = Speed controllable via TRC or Transformer (3) = Speed controllable via nverter * = No speed control available [H] High speed, [ME] Medium speed, [LO] Low speed ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDM 12/12 E6G3 1F 6 3V +SCT DDM 12/12 E6G377 3F 6 1V +SCT

72 DDM Direct driven centrifugal fans / DDM / Specifications Specifications High performance centrifugal fan DDM Double width, double inlet (DWD), direct driven forward curved blades fan. Lap-jointed scroll of galvanized steel (EN 1142) assembled through a high technology roller-lock seaming for fan sizes 7 inches and larger, spot-welded scroll of Sendzimir galvanized steel for smaller sizes. Straight cut off plate at fan outlet. mpeller with forward curved blades of galvanized steel, directly mounted on an External Rotor motor for optimal motor cooling and no transmission losses. Open (1/2) or closed (32/44/54/55) motor frame; Motors may be single or three-phase, single or multiple speed, speed-adjustable by voltage regulation through transformers or TRC regulators. Motors suitable for use at 5Hz or 6Hz are available. Built-in thermal devices either in series or wired out is standard fit. Maintenance free self-aligning ball bearings, vibration isolation pads. mpeller dynamically balanced in 6.3, according to SO 14. Different fan options and accessories, motor types and sizes available - see technical data. Fan data Fan type Volume flow Static pressure ir density at fan inlet r kg/m³ ir temperature Max. power consumption Speed Frequency Sound power level ( weighted) Weight t e N f L W m C kw 1/min Hz db kg Fittings / ccessories Outlet flange - O Outlet flexible connection - (sizes 7/7) Mounting feet - O/ (sizes 7/7) Terminal box - O nlet guard -O/ Outlet guard - O/ owder-coating - O TRC electronic regulators - Legend O = Options = ccessory O/ = The item could be delivered as an option or an accessory lease, check availability of each individual option or accessory on each specific fan model.

73 Fittings / ccessories Direct driven centrifugal fans / DDM / ccessories ccessories Flanges ll options and accessories must be specified separately. lease take the technical data and dimensions from the corresponding page of the catalogue. Made from galvanized or painted steel, to connect ducts and system components to the fan outlet side. Dimensions in mm, subject to change. 28 d f f 13 b 13 Ø d1 a 13 e e 13 c DDM a b c d e f 7/ / / /7 TGHT / / TGHT / / / / / Ø d1 Flexible connection Dimensions in mm, subject to change d 13 f f 13 b Ø d1 a 13 e e 13 c DDM a b c d e f 7/ / / /7 TGHT / / TGHT / / / / / Ø d1 Dimensions in mm, subject to change. 224 d f f 13 b 13 Ø d1 a 13 e e 13 c DDM a b c d e f 7/ / / /7 TGHT / / TGHT / / / / / Ø d1

74 Fittings / ccessories Direct driven centrifugal fans / DDM / ccessories Mounting feet Feet made from galvanized steel, either mounted or loose, enable the fan to be installed with a, and 27 orientation. Dimensions in mm, subject to change. w x3 w w x4 s x2 q 11x16 6 v r h x1 w p l DDM h l p q r s v w x1 x2 x3 x4 7/ / / /7 TGHT / / TGHT / / / / / Terminal box Each fan is equipped with a loose cable, a terminal strip or a terminal box (see specific catalog data for details) The terminal box is commonly fitted to the side plate of the fan. t is made of plastic material and provided with cable glands. schematic diagram, always provided with the fan, displays the proper electrical connection. Dimensions in mm, subject to change rotection guards nlet or outlet guards are available as accessories from size 7/7 to 1/1, for bigger sizes and for further information, please contact Nicotra Gebhardt technical department.

75 Fittings / ccessories Direct driven centrifugal fans / DDM / ccessories ncreased corrosion RVM - Single-phase manual regulator Nicotra Gebhardt fans are provided as a standard equipment with a highly efficient corrosion but, in the event of extremely high corrosion risk, additional corrosion s might be required. Following to the application and corrosion stress conditions, special coatings of various types and thickness can be supplied on request. Electronical speed control unit producing a stepless modulated output voltage for fans with speed controlled single phase motors Execution Casing made of impact resistant plastic. Function The speed controller is equipped with an EMC-filter, a turning knob for speed control starting at a fixed rpm-value, an operation indicating light (RVM 5, RVM, RVM 2), and an internal fuse. rticle Max. rotection Temperature number voltage current Frequency range Fuse a b c V Hz C mm mm mm RVM 1,5E K /6 2 +/+4 5X2 1 FST RVM 3E K /6 2 +/+4 5X2 1 FST RVM 5 K /6 54-1/+4 5X2 1 FST RVM K /6 54-1/+4 6,3X32 2 FST RVM 2 K /6 54-1/+4 6,3x32 32 GL Dimensions b a c Wiring Diagram RVM 1.5E, RVM 3E RVM 1.5E, RVM 3E M Motor L N M 23 V/C 5/6 Hz Motor L 23 V/C 5/6 Hz N

76 Fittings / ccessories Direct driven centrifugal fans / DDM / ccessories Wiring Diagram RVM 5, RVM, RVM 2 Capacitor L N C 23 V/C 5/6 Hz + Earth Motor 1 Common 2 Main 3 uxiliary RVT - Three-phase manual regulator Electronical speed control unit producing a stepless modulated output voltage for fans with speed controlled three phase motors. Execution lastic casing with cast aluminium base plate, 54. Function With the control unit a setting of the minimum speed value as well as the maximum speed is provided. t is equipped with an internal overload and, as an option, there are contacts provided for connecting the thermo contacts (TO) in the motor winding. Following to switching the unit on, the controller automatically is operating a softstart of the motor up to the speed which is set by the position of the potentiometer. By turning the potentiometer the motor speed will be changing due to driving it with a varying voltage through phase cutting. rticle number voltage current Frequency rotection Temperature range Fuse a b c V Hz C mm mm mm RVT 3 K /6 54 +/+4 6x32 GF RVT 6 K /6 54 +/+4 6x32 GF RVT K /6 54 +/+4 6x32 GF Dimensions b a c 76

77 Fittings / ccessories Direct driven centrifugal fans / DDM / ccessories Wiring Diagram 4 V Tension max RVT L1 L2 L3 E GND U V W min 1 % Control 4 V / 5 Hz E Motor 3~ Star-delta switch Enclosed selector for star-delta motor configuration for three-phase motors. Execution nsulated polycarbonate module, 66 degree. front mounting, silver front panel, 6 switching angle, terminals accessible both from mounting direction or laterally, data rated according to EC 47. Function 3-position changeover switch for = Motor OFF, Y = STR motor configuration, D = DELT motor configuration. t must be installed between the 3-phase power supply (L1, L2, L3) and a 3-phase controllable motors, having the STR-DELT terminals externally available (U1, V1, W1 and U2, V2, W2 respectively). t provides a safe way to switch between the STR and DELT motor configurations, changing, in this way, between the high (DELT) and low (STR) motor speed. The switch can't be used as STR/DELT motor starter! rticle rotection Temperature number voltage current Frequency range V Hz C M2 K / /+4 Dimensions in mm, subject to change. 2 2 M Wiring Diagram Y L1 L2 L3 Y U1 3 V1 6 W M 3~ 7 U2 12 V2 8 W2 77

78 Description Direct driven centrifugal fans / DDM / Description Safety These fans are intended to be incorporated into finished products for the treatment of clean and filtered air, free of dust, particles, shavings, grease, etc., within the rated ranges of temperature and electrical supply. The design of the installation shall guarantee the essential safety requirements, as specified by the locally enforceable legislation, including safety against human contact with moving parts, e.g. by application of the design principles stated in EN SO 121. When the inlet and/or outlet of a fan are connected to a ducting system, or to a closed plenum, including integral filters or grids, these may be designed also to provide the specified level. Otherwise, the fan must be protected by fitting appropriate inlet or outlet guards, designed in accordance with EN SO 13857, available from Nicotra Gebhardt as accessories or options. Type code 1F 3F Single phase Three phase erformance data pole 4-pole 6-pole 1V 2V 3V 4V FL SCT S SB GRG GRG 1-Speed 2-Speeds 3-Speeds Outlet flange Terminal box Special version Mounting Feet nlet guard Outlet guard 4-Speeds ir performance ratings shown in this catalogue have been derived from performance tests made with installation type "B", with free inlet and ducted outlet. The performance data shall be obtained in a laboratory registered by MC for MC 21/ air performance testing. Data are not certified by MC. Ratings are referred to the standard air density of r 1 = 1.2kg/m 3 at the fan inlet. Sound 1m n the diagrams, the -weighted housing and free inlet sound power level is given as the emission parameter for the ventilator. The -weighted noise level L p7 for a distance of 1m (see sketch) is achieved approximately in that the correction value given below is subtracted from the respective sound power level. t should be noted that site acoustics, duct design, reverberation, natural frequencies etc. can all influence noise to a greater or a lesser extent. L p7 L w7 - dl Correction values dl: Size 1/1: dl = 11dB Size 12/: dl = 13dB 1 = Fan 1.1 = Motor 2 = duct on discharge 3 = Chamber 4 = Microphone position Fan operating area db For a proper fan selection the duty point in the grey area to the left of the leftmost dashed parabolic line drawn on each performance diagram should preferably be avoided. n this area the fan stall is producing fluctuating pressure and fluctuating loads on the fan and motor; some single-phase motors may also be overheating in this low-load condition. When the performance curves of a fan are cut to the right with continuous-line parabola, a fan selection with the duty point located below of this parabola shall be carefully avoided, because the drive motor would be overloaded and would be overheating. Such an operating condition may be evidenced by a motor input current exceeding the maximum rated value

79 Description Direct driven centrifugal fans / DDM / Description Fan lifespan Media Motors Motor Speed regulation generally The high level of manufacturing technology and the use of selected materials provide a considerable fan operating lifetime. n most applications, the fan components more subjected to wear are the motor bearings. The bearings are sized to reach, using 8% of the maximum allowed current and working at an air temperature not higher than 4 C, a L 1h operating life of 2, hours. This means a 7 years fan lifetime, for fans running 8 hours a day. This range of fans are specially designed for use into air handling units (HU) and ventilation systems. The centrifugal fans are ideal for conveying clean air. The allowed air temperature comes from -2 C to +4 C. Most motors have F SO insulation but some of the smaller models have nevertheless B SO insulation. Motors could have 32; 44; 54 or 55 (closed frame) or 1; 2 (open frame). Detailed information for each fan model are provided with fan specification on the product pages. ll standard production motors are equipped with an integrated thermal overload protectors (TO), as against thermal overload. TO may be wired internally to windings and then they ll automatically stop the motor, if a overheating event occurs, and start the motor again once it is cooled down. TO may alternatively be externally wired, that means TO terminals are available to the user in the motor terminal block or terminal box. n this case, the TO terminals can be manually connected in series between power supply and motor windings or, alternatively, to an external device that switches off the mains to prevent that the motor be damaged by an overheating conditions. ll standard production motors can always be used with transformers or devices which do not modify the sinusoidal wave line to change the fan speed is always allowed. Speed regulation for fans equipped with single-phase motors Single or multiple speed available. Single phase motors are generally suitable for speed regulation by changing the input voltage with our electronic single-phase RVM speed regulators (see chapter "Options/ccessories" for further information). The speed variable types are marked with an dot in the technical data tables. The reduced voltage curves shown in the catalogue may be obtained by either using transformers or our RVM regulators. n the last case, we have commonly used a 2-wires connection for running currents up to 3 mpere max and a 3-wires connection for higher running currents. Speed regulation of multi-speed fans is obtained by connecting the mains to the correct motor terminals according to the wiring diagram supplied with each fan. Speed regulation for fans equipped with three-phase motors Single or double speed available. erformance diagrams of single speed fans usually shows only the curve referred to a 23V star 4V delta configuration. erformance diagrams of double speed fans usually shows the curves referred to a 4V star (high speed) 4V delta (low speed) configurations. The use of RVT controllers or inverter is only acceptable with special motors equipped with a reinforced insulation of the windings. n this case, these devices shall be in accordance with the requirements of EC / TS :26. 7

80 The high efficiency direct driven centrifugal fans DDMB, with brushless DC external rotor motor: The logical continuation of the successful series DDM. roduct features new brushless-dc external rotor motor new lapjointed scroll high efficiency low power consumption low sound power level high reliability High efficiency variable speed drive Energie saving concept high efficiency drive due to optimized motor design FC disabled at Stop NTC bypassed during operation General features integrated FC brownout 54 for complete drive dry contact - error signal simple usage - fan selection by D switches and GO! (no parameter setup) designed for double inlet fans external unit - no obstruction of intake - less aerodynamic losses nterface analogue MODBUS RTU Comparison of the different levels of system efficiency Brushless DC motor has a significantly higher level of drive system (motor and control) efficiency under all operating conditions. Drive system efficiency level Brushless DC-drive C-drive (frequency converter) C-drive (transformer) Speed range 8

81 rogram overview: DDMB range This kind of fans are specially conceived for use in dust-free environments, at temperatures up to +4 C, or higher on selected models. The performance data have been obtained in a laboratory registered by MC for MC 21/ air performance testing. Data are not certified by MC. Fan range DDMB mpeller size (width and diameter) up to 12 Brushless-DC external rotor motor High efficient variable speed drive External unit no obstruction of intake The variety of DDMB We have the right fan for all your applications! Many different sizes, versions and options are available in the DDMB range! ir flow up to 6, Static pressure up to 1,5 Version Description Figure DDMB Lap-jointed scroll made from galvanized steel and forward curved blades impeller directly mounted on a brushless-dc external rotor motor. EKE 7 external commutation unit +FL with discharge flange mounted +SB with housing feet either mounted or loose 81

82 DDMB-7/7 Direct driven centrifugal fans / DDMB / 225 1/min /min DDMB 7/7 M6 +EKE [G1] 23 V 5/6 Hz 81 db /min 1.5 kw e 82

83 DDMB-7/7 Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB 7/7 W V Hz W 1/min M6 +EKE7-65 (5) [G1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB 7/7 C kg kg/m³ M6 +EKE F EXT B 6M4 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB 7/7 M

84 DDMB-/7 Direct driven centrifugal fans / DDMB / 225 1/min /min 6 DDMB /7 M61 +EKE V 5/6 Hz 84 db [1] /min kw e 84

85 DDMB-/7 Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB /7 W V Hz W 1/min M61 +EKE7-65 (5) [1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB /7 C kg kg/m³ M61 +EKE F EXT B 6M41 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB /7 M

86 DDMB-/7 TGHT Direct driven centrifugal fans / DDMB / DDMB /7 TGHT M61 +EKE /min /min 86 [J1] 23 V 5/6 Hz 86 db /min kw e 86

87 DDMB-/7 TGHT Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB /7 TGHT W V Hz W 1/min M61 +EKE7-65 (5) [J1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB /7 TGHT C kg kg/m³ M61 +EKE F EXT B 6M43 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB /7 TGHT M

88 DDMB-/ Direct driven centrifugal fans / DDMB / 21 1/min 8 1 1/min 7 6 DDMB / M61 +EKE7-65 [K1] V 5/6 Hz 84 db /min kw e 88

89 DDMB-/ Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB / W V Hz W 1/min M61 +EKE7-65 (5) [K1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB / C kg kg/m³ M61 +EKE F EXT B 6M42 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB / M

90 DDMB-/ TGHT Direct driven centrifugal fans / DDMB / /min DDMB / TGHT M61 +EKE7-65 [L1] 23 V 5/6 Hz /min 83 db /min kw e

91 DDMB-/ TGHT Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB / TGHT W V Hz W 1/min M61 +EKE7-65 (5) [L1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB / TGHT C kg kg/m³ M61 +EKE F EXT B 6M44 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB / TGHT M

92 DDMB-1/8 Direct driven centrifugal fans / DDMB / 2 1/min /min DDMB 1/8 M62 +EKE V 5/6 Hz [M1] db /min kw e 2

93 DDMB-1/8 Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB 1/8 W V Hz W 1/min M62 +EKE7-65 (5) [M1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB 1/8 C kg kg/m³ M62 +EKE F EXT B 6M45 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB 1/8 M

94 DDMB-1/1 Direct driven centrifugal fans / DDMB / 2 1/min 1 DDMB 1/1 M62 +EKE V 5/6 Hz [N1] /min /min 82 db kw e 1 2 1/min DDMB 1/1 M63 +EKE V 5/6 Hz 8 [N2] db kw e 4

95 DDMB-1/1 Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB 1/1 W V Hz W 1/min M62 +EKE7-65 (5) [N1] ~ 5/ M63 +EKE7-65 (5) [N1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB 1/1 C kg kg/m³ M62 +EKE F EXT B 6M46 M63 +EKE F EXT B 6M47 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB 1/1 M DDMB 1/1 M

96 DDMB-12/ Direct driven centrifugal fans / DDMB / 18 1/min DDMB 12/ M63 +EKE V 5/6 Hz [O1] /min /min 84 db kw e 6

97 DDMB-12/ Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB 12/ W V Hz W 1/min M63 +EKE7-65 (5) [O1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB 12/ C kg kg/m³ M63 +EKE F EXT B 6M48 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB 12/ M

98 DDMB-12/12 Direct driven centrifugal fans / DDMB / /min DDMB 12/12 M63 +EKE V 5/6 Hz /min [1] /min db kw e 8

99 DDMB-12/12 Direct driven centrifugal fans / DDMB / Speed Mains Mains Max. power Max. input control Curves motor power voltage hases frequency consumption current Speed DDMB 12/12 W V Hz W 1/min M63 +EKE7-65 (5) [1] ~ 5/ Motor Motor thermal Thermal Media Temperature max. Fan weight Density of media nstallation type (SO 581) rticle number DDMB 12/12 C kg kg/m³ M63 +EKE F EXT B 6M4 (5) = Stepless speed controllable via electronical Commutation Unit The fans must be used with the Electronical Commutation Unit EKE7. ttention! We suggest to do not use the fan in the grey marked area! The noise ratings given in the performance curves are sound power level, see Technical Description. Dimensions in mm, subject to change. DDMB 12/12 M

100 DDMB Direct driven centrifugal fans / DDMB / Specifications Specifications High performance centrifugal fan DDMB Double width, double inlet (DWD), direct driven forward curved blades fan. Lap-jointed scroll of galvanized steel (EN1142) assembled through a high technology roller-lock seaming (sizes 7 inches), spot-welded scroll of galvanized steel (sizes <7 inches). Straight cut off plate at fan outlet. mpeller with forward curved blades of galvanized steel, directly mounted on a brushless DC "External rotor" motor, optimal motor cooling and no trasmission losses. High efficient brushless DC motor with external control unit no obstruction of intake; continuously variable speed control with integrated active FC and brownout, drive system complete in 54, 5/6Hz,...5V/...1V, Modbus RTU. Maintenance free, vibration isolaton pads. mpeller dynamically balanced according to SO 14. Different fan sizes, options and accessories available - see technical data. Fan data Fan type Volume flow Static pressure ir density at fan inlet r kg/m³ ir temperature Max. power consumption Speed Frequency Sound power level ( weighted) Weight t e N f L W m C kw 1/min Hz db kg Fittings / ccessories Outlet flange - O Outlet flexible connection - (sizes 7/7) Mounting feet - O/ (sizes 7/7) Terminal box - O nlet guard -O/ Outlet guard - O/ owder-coating - O Legend O = Options = ccessory O/ = The item could be delivered as an option or an accessory lease, check availability of each individual option or accessory on each specific fan model. 1

101 Electrical commutation unit Electrical commutation unit Direct driven centrifugal fans / DDMB / Electrical commutation unit Execution Controller EKE7 with single phase input and variable output voltage and frequency, especially designed to operate forward curved fans with brushless DC motors. By using modern power semiconductors a high efficiency at any speed is guaranteed. Specification suitable exclusively for operating Nicotra Gebhardt brushless DC motors for single phase supply 23V/5-6Hz input power up to 1.8kW internal speed-, power- and motor current limitation can be adjusted according to the connected fan type simply by dip switches integrated active ower Factor Correction (power factor >5%) Modbus RTU serial interface analogue interface...5v/ 1V dry error contact (max. 24V DC/25m) 54 (protected against dust and splashing water) Standards and guide lines European Low Voltage Directive The Controller EKE7 complies to the requirements of the Low Voltage Directive 26/5/EC. The unit has been manufactured according to the standard: EN (Semiconductor converters - General requirements and line commutated converters) European EMC Directive The Controller EKE7 is supplied excluively in connection with products of the company Nicotra Gebhardt. The unit is fully integrated in the corresponding products and then complies to all requirements of the EMC directive, according to the EMC product standard for electrical drives with variable speed EN European Machinery Directive The Controller EKE7 does not impinge on the application field of the Machinery Directive. nterface nterface analogue Modbus RTU Motor Hall Sensor Motor ower Mains 1~ / 23 V C 5 / 6 Hz H3 H2 H1 E W V U E N L X5 X4 X3 X2 X1 erformance Speed ower Limit Current Limit p F The exact limits depend on the fan type selected by dip switches. 11

102 Fittings / ccessories Direct driven centrifugal fans / DDMB / ccessories ccessories Flanges ll options and accessories must be specified separately. lease take the technical data and dimensions from the corresponding page of the catalogue. Made from galvanized or painted steel, to connect ducts and system components to the fan outlet side. Dimensions in mm, subject to change. 28 d f f 13 b 13 Ø d1 a 13 e e 13 c DDMB a b c d e f 7/ / /7 TGHT / / TGHT / / / / Ø d1 Flexible connection Flexible connection to connect the fan to system components or units, absorbing and stopping the vibration transmission. Dimensions in mm, subject to change d 13 f f 13 b Ø d1 a 13 e e 13 c DDMB a b c d e f 7/ / /7 TGHT / / TGHT / / / / Ø d1 Dimensions in mm, subject to change. 224 d f f 13 b 13 Ø d1 a 13 e e 13 c DDMB a b c d e f 7/ / /7 TGHT / / TGHT / / / / Ø d1 12

103 Fittings / ccessories Direct driven centrifugal fans / DDMB / ccessories Mounting feet Feet made from galvanized steel, either mounted or loose, enable the fan to be installed with a, and 27 orientation. Dimensions in mm, subject to change. w x3 w w q x4 s x2 11x16 6 v r h x1 w p l DDMB h l p q r s v w x1 x2 x3 x4 7/ / /7 TGHT / / TGHT / / / / rotection guards ncreased corrosion The fans are designed for installation in equipment and as standard are not equipped with protective guards. They should not be put into operation before all protective devices are fitted and connected! rotective measures must be carried out as set out in DN EN SO 121 "Safety of machinery - Basic concepts, general principles for design". f the application of the fan allows free access to the inlet and discharge apertures, safety devices must be put in place on the fan in accordance with DN EN SO 13857! Suitable safety guards are available as an optional extra. Nicotra Gebhardt fans are provided as a standard equipment with a highly efficient corrosion but, in the event of extremely high corrosion risk, additional corrosion s might be required. Following to the application and corrosion stress conditions, special coatings of various types and thickness can be supplied on request. 13

104 Fittings / ccessories Direct driven centrifugal fans / DDMB / ccessories Speed regulator module REGOT REGOT1 and REGOT2 are devices used to give variable voltage by inside rotating. t s possible regulate minimun voltage. STO function is implemented. REGOT seriers are used to control voltage controlled electronic devices (DRVER, Electronic motor, brushless inverter). Dimensions in mm, subject to change Regulation Minimum 1 15 Wiring Diagram REGOT1 without STO Minimun Regulation V N V+ with STO Minimun Regulation N V V+ Wiring Diagram REGOT2 without STO Minimun Regulation V N V+ with STO Minimun Regulation N V V+ 14

105 Description Direct driven centrifugal fans / DDMB / Description Safety These fans are intended to be incorporated into finished products for the treatment of clean and filtered air, free of dust, particles, shavings, grease, etc., within the rated ranges of temperature and electrical supply. The design of the installation shall guarantee the essential safety requirements, as specified by the locally enforceable legislation, including safety against human contact with moving parts, e.g. by application of the design principles stated in EN SO 121. When the inlet and/or outlet of a fan are connected to a ducting system, or to a closed plenum, including integral filters or grids, these may be designed also to provide the specified level. Otherwise, the fan must be protected by fitting appropriate inlet or outlet guards, designed in accordance with EN SO 13857, available from Nicotra Gebhardt as accessories or options. Type code 1F 3F Single phase Three phase erformance data pole 4-pole 6-pole 1V 2V 3V 4V FL SCT S SB GRG GRG 1-Speed 2-Speeds 3-Speeds Outlet flange Terminal box Special version Mounting Feet nlet guard Outlet guard 4-Speeds ir performance ratings shown in this catalogue have been derived from performance tests made with installation type "B", with free inlet and ducted outlet. The performance data shall be obtained in a laboratory registered by MC for MC 21/ air performance testing. Data are not certified by MC. Ratings are referred to the standard air density of r 1 = 1.2kg/m 3 at the fan inlet. Sound 1m n the diagrams, the -weighted housing and free inlet sound power level is given as the emission parameter for the ventilator. The -weighted noise level L p7 for a distance of 1m (see sketch) is achieved approximately in that the correction value given below is subtracted from the respective sound power level. t should be noted that site acoustics, duct design, reverberation, natural frequencies etc. can all influence noise to a greater or a lesser extent. L p7 L w7 - dl Correction values dl: Size 1/1: dl = 11dB Size 12/: dl = 13dB 1 = Fan 1.1 = Motor 2 = duct on discharge 3 = Chamber 4 = Microphone position Motors Motor Speed regulation These brushless DC external rotor motors (BLDC) are especially designed. They have an highest efficiency also in the partial load area. The motors are protected via safe operating area (SO). SO defines the conditions (voltage, power, current, speed) over which the drive can be expected to operate without self-damage. The SO of the DDMB is automatically guaranteed by the motor design and the controller settings. dditionally to that the motors are equipped with thermo contact (TO) to protect the motors against thermal overload. The speed limits are defined by the presetting of the dip switches and the winding configuration. Between that limits the speed can be controlled via analogue (...5V or...1v) or MODBUS-interface. 15

106 Description Direct driven centrifugal fans / DDMB / Description Fan operating area db For a proper fan selection the duty point in the grey area to the left of the leftmost dashed parabolic line drawn on each performance diagram should preferably be avoided. n this area the fan stall is producing fluctuating pressure and fluctuating loads on the fan and motor; some motors may also be overheating in this low-load condition. When the performance curves of a fan are cut to the right with continuous-line parabola, a fan selection with the duty point located below of this parabola shall be carefully avoided, because the drive motor would be overloaded and would be overheating. Such an operating condition may be evidenced by a motor input current exceeding the maximum rated value Fan lifespan Media The high level of manufacturing technology and the use of selected materials provide a considerable fan operating lifetime. Only the motor bearings are subject to wear in most applications. The calculated bearing life time L1h is appr. 3, hrs. This range of fans are specially designed for use into air handling units (HU) and ventilation systems. The centrifugal fans are ideal for conveying clean air. The allowed air temperature comes from -2 C to +4 C. 16

107 ccessories Direct driven centrifugal fans / ppendix / ccessories Frequency converter Design Frequency inverter with variable output voltage and frequency, specially designed for the operation of centrifugal fans with induption motors. Due to the use of modern power semiconductors it is possible to achieve a speed of revolution with high efficiency. Switching frequencies up to 16kHz can be set with all types. f the highest switching frequencies are required (for example for reasons of noise reduction), the maximum output current is decreased, in which case the performance category should be specially checked. The overall package includes the frequency inverter, filter for B (for residential and commercial uses) as well as a control unit. General erformance characteristics Motor feature for motors with thermistor temperature sensors, adjustable accelaration and deaccelaration ramps, minimum and maximum rotation speeds, fixed rotation speeds, trapping switch during operation, programmable inputs and -controller (MM42 and MM43 only), RS485 serial interface as well as a detailed operating instructions. Caution about combination with isolators (ESH)! Special EMCaction can be necessary, furthermore do not switch during operation, overvoltages can destroy the switch and the motor-winding. erformance range G11 1C 23V (for single-phase C supply).25kw to 2.2kW rated motor power, 2V to 24V 1% single-phase C, 47Hz up to 63Hz, three-phase current output 3 23V C, 2. ermitted ambient temperature during operation: -1 C up to +4 C. erformance range MM42 3C 4V (for three-phase C supply).55kw to 11kW rated motor power, 38V to 48V 1% three-phase C, 47Hz up to 63Hz, three-phase current output 3 4V C, 2. ermitted ambient temperature during operation: -1 C up to +5 C. The interference suppression filter required to comply with the EMC basic interference suppression standard EN (residential and commercial uses) is integrated into the package as substructure option. ower choke to comply with EN as additional component. Observe performance reduction when using high clock frequencies! erformance range MM43 3C 4V (for three-phase C supply) 15kW to 25kW rated motor power, 38V to 48V 1% three-phase C, 47Hz up to 63Hz, three-phase current output 3 4V C, 2. ermitted ambient temperature during operation: -1 C up to +5 C. The interference suppression filter required to comply with the EMC basic interference suppression standard EN (industrial applications) is partially integrated. n order to attain EMC requirements Class B a frequency inverter without filter should be selected. The appropriate EMC-B filter is then required as an additional component. Observe performance reduction when using high clock frequencies! The indicated ratings of the units are made for a quick selection. The exact dedication of an inverter in this catalogue is made by taking into account of the max. admitted current at a pulse frequency of 4kHz. t is important to know that at higher pulse frequencies the supplied current of the inverter will be decreasing, with the possible consequences of having to select a larger inverter unit. lso longer feed lines or additional radio frequency filters may lead to the choice of a larger inverter size. The selected frequency inverters (G11 und MM42) are units contains the frequency inverter (as shown in the following tables) with the matching interference suspression filter (Class B) and a control panel. further component is the line choke which is available as an accessorie. For more information the available frequency inverters are shown in the following tables. 422

108 ccessories Direct driven centrifugal fans / ppendix / ccessories Frequency converter Dimensions For three-phase C motors on the single-phase supply. b a c 6SL3211- power current a b c Weight kw mm mm mm kg B12-5B B13-7B B15-5B B17-5B B B B Dimensions For three-phase C motors on the three-phase supply b a c 6SE642- power current a b c Weight kw mm mm mm kg 2UD UD UD UD D22-2B D23-B D24-B D25-5C D27-5C D31-1C Dimensions For three-phase C motors on the three-phase supply b a c 6SE643- power current a b c Weight kw mm mm mm kg 2D31-5C D31-8D D32-2D D33-D D33-7E D34-5E D35-5F D37-5F D37-8F UD41-1F UD41-3F UD41-6G UD42-G UD42-5G

109 Direct driven centrifugal fans / ppendix / ccessories Motor unit Motor unit for three-phase current motors (standard motors) without thermal contacts. Design lastic casing in 55, permissible ambient temperature +4 C, 4Hz up to 6Hz, frontal operation, for wall mounting. Motor unit for singlespeed, non-variable speed three-phase current motors without thermal contacts. Motor unit EUM 33 Function The motor units must be adjusted on site to the trigger current. f the preset trigger current is exceeded, the device disconnects the motor from the mains supply via a thermal overload release. ressing the on key causes the unit to turn on again. ll motor units EUM33 are also suitable for the of EExe-motors (TB-rüfung Gesch-Nr. 3.35/386.36). They must however be mounted outside of explosion endangered areas, since they are not themselves designed with explosion. EUM 33- Continuous current Setting range Max. nominal power kw 4-8D.4 +.2/ D.6 +.4/ D 1 +.6/ D / D / D / D 6 +4/ D 1 +6/ D 16 +1/ D 2 +16/ D 25 +2/ D 5 +25/ D 58 +5/+58 3 Dimensions in mm, subject to change Wiring Diagram L1 L2 L3 E EUM U1 V1 W1 424

110 ccessories Direct driven centrifugal fans / ppendix / ccessories Universal control device Universal control device for installation in control cabinets Digital control module for controlling pressure, air velocity or volume flow ( controller). For example, a transformer for fans is controlled via the...1v output. The device is designed for installation in control cabinets. Type Multi functional LC-display for actual and nominal values (m/s, h = mbar, 1). Menuassisted adjustment via three function keys. ctual value input...1v e. g. for: air speed sensors Type EL in measuring ranges from...1m/s and...1m/s e. g. for ir velocity control in clean room technology ressure sensors Type E in measurement ranges 5 up to 4 e. g. for ressure control in canal systems of air conditioning systems (VVS) and Flow control in centrifugal fans with pressure tappings in the inlet cone The control module calculates the required flow () from the differential measured pressure between the surrounding level and inlet cone. Output...1V e. g. for controlling a transformer Failure message is output via display (internal/external) and relay programmable External set value specification via potentiometer or...1v signal Specification of two set values (day/night), can be switched over externally or via keyboard rotection against unauthorised setting by keyboard code pplication area ressure regulation for centralised ventilation systems and variable volume flow systems for building air conditioning (VVS) e.g. in combination with a frequency inverter or a commutation unit or a transformer and a pressure sensor Volume flow regulation for centrifugal fans (with measuring stub in the inlet cone) e.g. in combination with a frequency inverter or a commutation unit or a transformer or a mini-interface inverter and a pressure sensor and the volume flow volumeter ir speed regulation for clean room systems, e.g. in combination with a transformer and an air speed sensor Electrical connection and installation Connection to 23V, 5/6Hz. The control module can be installed in a control cabinet door. dmissible relative humidity: 85%, noncondensing. ower supply for the sensors included: +24V, 2%, max = 7m. Setting options Set values in the measurement range of the sensor (m/s, h = mbar), or in the volume flow range of the fan ( 1) Switch over of set value (day/night) Min./max. setting range Translation of performance curve ( component) Constant of integration can be selected ( component) Reversal of the effect of the control behaviour Rotation of the performance curve Switchover or programming of internal/external set value Sensor selection via keypad rogramming for Filter fault Keypad code K factor entry (The K1-factor can be found in the current lists of our fan line) Max. output current Motor Operating consumption ER 2- nput voltage Output voltage V V m V C 4-5E /1 / /+4 Operating temperatur 425

111 ccessories Direct driven centrifugal fans / ppendix / ccessories Universal control device Dimensions in mm, subject to change max nstrument panel window Wiring Diagram (+) ( ) D+ 24V 24V D2 1 GND L1 N E D GND D1 D3 2 GND E2 E Mains K1 K2 DT B GND RS485 Out, 24 V DC nput, Digital 1/2/3 Out, nalog 1/2 + 2 Out -1 V nput, nalog -1 V 1/2 E1 + E2 nput -1 V + 1 E1 + Out nput -1 V -1 V E2 C V m C V m Contact rating max. 5 / 25 V C 426

112 Direct driven centrifugal fans / ppendix / ccessories Differential pressure sensor Differential pressure sensor with membrane for measuring the pressure, negative pressure or differential pressure of nonaggressive gases. Type The differential pressure to be measured acts transformed into an output signal of...1v by electronics (in SMD technology). pplication ranges Volume flow regulators in centrifugal fans (with volume flow measuring device MV) in connection with a frequency inverter type G11, MM42, MM43, or a universal regulator appliance type ER 2-4-5E in connection with a frequency regulator. Electrical connection and installation The differential pressure sensor delivers a starting signal (...1V) by pressure increase at the lus connection opposite pressure on the Minus connection. Voltage supply V DC or 24V C, 15% ressure connections must point downward, tube connection ø5mm Measuring accuracy Null drift:.% Sum of linearity and hysteresis: 1% Temperature drift zero point:.3%/1k Temperature drift length of measurement:.2%/1k Dimensions in mm, subject to change ~ ø5 Motor E 1- ressure range Max. current consumption Overload Output signal proportional m V C / /+1 +/ / /+1 +/ / /+1 +/ / /+1 +/ / /+1 +/+5 Operating temperatur Wiring Diagram ressure connections 5 mm + p - p ower supply V DC 24 V C ±1 % brown + ~ yellow + Output...1V DC = white ~ 427

113 ccessories Direct driven centrifugal fans / ppendix / ccessories solator ESH 21 solator ESH 21 ( 3kW) solator ESH 21 ( 5.5kW) Design Beautifully shaped, shock-resistant plastic casing. rotection 44/65, for sur-face mounting, switching symbols and. The isolator is fitted with connection terminals that are very accessible and has a con-nection diagram glued in the casing. The ESH21 up to 3kW is designed to 44. t is equipped with an integrated lo-cking mechanism. The ESH21 up to 5.5kW is designed to 65. t is equipped with a coupling cover and an integrated locking mechanism. padlock can in some cases be fitted to the rotary switch. Function The isolator disconnects the fan safely from the mains in the event of cleaning, maintenance or repair work on site and thus avoids accidents due to uncontrolled activation of the unit by third parties. t is no main switch or emergency switch. ll of the ified isolators are fitted with potential-free contacts (1 closer and 1 opener). The isolators for motors with a built-in thermal contact have on principle three supplementary auxiliary contacts, so that the pre-switched control device does not drop out during cleaning or servicing work due to motor. Caution about combination with frequency inverter! Special EMC-action can be necessary, furthermore do not switch during operation, overvoltages can destroy the switch and the motor-winding. The isolators are grouped according to motor rated power. ll important characteristic data are evident from the model designation. E.g.: ESH = 3kW switch - 6 main contacts - 5 auxiliary contacts Dimensions a a b b d ESH 21 3 kw d ESH kw c c ESH 21- ermissible motor power a b c d kw mm mm mm

114 ccessories Direct driven centrifugal fans / ppendix / ccessories solator ESH 22 Design Shock-resistant metal casing, black switch with symbols and. rotection 65 or 54, for surface mounting (see determination in the tabular). The isolator is fitted with connection terminals that are very accessible and has a connection diagram glued in the casing. ll isolators are equipped with a coupling cover and an integrated locking mechanism. n some cases a padlock can be fitted to the rotary switch. Dimensions a b d c Function The isolator disconnects the fan safely from the mains in the event of cleaning, maintenance or repair work on site and thus avoids accidents due to uncontrolled activation of the unit by third parties. t is no main switch or emergency switch. ll of the ified isolators are fitted with potential-free contacts (1 closer and 1 opener). The isolators for motors with a built-in thermal contact have on principle three supplementary auxiliary contacts,so that the preswitched control device does not drop out during cleaning or servicing work due to motor. Use The isolator ESH22 with metal casing is necessary, if screened components must be used. (e.g. frequency inverters or control engineering devices are used featuring electronic components). ttention! Do not switch during operation, overvoltages can destroy the switch and the motor winding! The isolators are grouped according to motor rated power. ll important characteristic data are evident from the model designation. E.g.: ESH = 7.5kW switch, 6 main contacts, 5 auxiliary contacts. ESH 22- kw mm mm mm mm G21 2 G G21 2 G G21 2 G G21 2 G G2/1 G16 2 G G36/1 G16 2 G G2/1 G16 2 G G36/1 G16 2 G G36/1 G16 2 G G36/1 G16 2 G G36/1 G16 2 G G36/1 G16 2 G G21 2 G G16 2 G G16 2 G16 ermissible motor power a b c d Cable lead-through (top) Cable leadthrough (bottom) 42

115 Notes Direct driven centrifugal fans / ppendix / Notes Quality management system Machine Safety Catalogue data DN EN SO 1 Nicotra Gebhardt quality is the result of a continuous company policy intended to guarantee that our product properties and features are clearly superior to comparable products. This already established company maxim led in pril 185 to the auditing and certification of the existing quality management system. n the following years it was updated to match the changing international and European standards. Modern production processes, monitored by our quality management system, guarantee a high repeat accuracy in production. This ongoing high standard of quality permits the establishing of the performance data in es of accuracy in accordance with DN The narrow tolerances ensure a high level of data reliability for our products. The fans contained in this catalogue are not machines in the sense of the EC Machine Directive. They are delivered with a manufacturer "Declaration of incorporation". The assessment of the dangers associated with the fan and necessary safety measures are based on the VDM Unit sheet : Fans; Safety requirements. The operating instructions give which safety measures are still necessary on assembly to ensure that the fans comply with the Machine Directive 26/42/EC. We reserve the right to change any measurements and technical data in this catalogue in accordance with further development of our products. ll information valid at the time of printing. 43

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