Zehnder Rittling Centair CMEV.4e Installation Instructions Manual
Central mechanical extract ventilation
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- User/homeowner manual (12 pages) ,
- Installation instructions manual (12 pages) ,
- User/homeowner manual (12 pages)
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Summary of Contents for Zehnder Rittling Centair CMEV.4e
- Page 1 Centair CMEV.4e / CMEV.4eHT Central Mechanical Extract Ventilation Installation Instructions CMEV.4e / CMEV.4eHT...
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Page 2: Table Of Contents
ontents Page General Description / Physical Specification ......3 Installation Instructions .............. 4 General Preparation ..............4 Positioning / Application ..............5 Mounting ..................5 Ducting Guidelines ............... 6 Electrical ..................7 On-Site Commissioning ............. 11 Performance Graphs ..............13 Guarantee .................. -
Page 3: General Description / Physical Specification
General Description / Physical Specification Overview 1.1.1 The CMEV.4e range is a ventilation system designed to provide improved indoor air quality in dwellings. As a whole house system, the unit constantly extracts air from rooms generating moisture and odours in dwellings (Kitchens, Wet Rooms, Utility Rooms and WC’s). -
Page 4: Installation Instructions
WEEE Statement 1.1.13 This product may not be treated as household waste. Instead it should be handed to an appropriate collection point for the recycling of electrical and electronic equipment. For more detailed information about the recycling of this product, please contact your local council office or your household waste disposal service. -
Page 5: Positioning / Application
Positioning / Application 2.2.1 The unit can be installed in any plane and should be sited in a service cupboard, on a wall or ceiling or in a loft space (See Figure 2). It is not advisable to install the unit directly above a bedroom or living room ceiling, or in an area that is part of a living area or bedroom. -
Page 6: Ducting Guidelines
2.3.5 Figure 3 - Location of Fixing Holes Figure 4 - ccess for Maintenance Footprint of CMEV.4e / CMEV.4eHT Ducting Guidelines 2.4.1 Please refer to design drawings for proposed ducting layout. 2.4.2 5 x 125mm nominal diameter spigots are provided for connection to ducting. Ductwork should be securely connected to spigots. -
Page 7: Electrical
Electrical 2.5.1 WARNING: The appliance MUST be earthed. All wiring must conform to BS7671: IEE Wiring Regulations. 2.5.2 WARNING: The CMEV.4e / CMEV.4eHT units must be isolated from the mains supply before removing the fan motor assembly. 2.5.3 The installation must be carried out by a qualified Electrician. 2.5.4 When supplied from a 6 amp lighting circuit no local fuse is required. - Page 8 Wiring Diagrams Key: Earth Green / Yellow Neutral Blue Brown Permanent Live Black Medium speed 2.6.1 Two speed control via light switch (CMEV.4e / CMEV.4eHT) Grey High speed 2.6.2 Two speed control via ZGS2 switch (CMEV.4eHT only) 2.6.3 Three speed control via light switch for trickle & boost speeds and medium speed activation via remote sensor (CMEV.4e only) 2.6.4 Three speed control via ZGS2 switch for trickle &...
- Page 9 BMS Connectivity - CMEV.4eHT Only 2.7.1 The CMEV.4eHT unit can be connected to a BMS system that can provide a variable 0-10 Volt output that will be used to control the fan operating speed, as shown within table 1.1 below: Voltage Speed ontrol 0V –...
- Page 10 2.7.4 Wiring of the BMS to the CMEV.4eHT (See Figure 6) Remove the three screws connecting the lid. Carefully remove the lid to expose the PCB. Carefully pierce through the ‘closed’ top hole within the lids cable grommet and pass through the BMS cable (not provided).
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Page 11: On-Site Commissioning
2.7.6 Fan Motor Assembly Replacement (See Figure 7) Realign the fan motor assembly ‘LINE INDICATOR’ with the ‘UNLOCKED’ symbol on main fan housing. Ensure fan motor assembly has a positive fit, and push firmly into main fan housing. Rotate fan motor assembly until it stops. - Page 12 3.1.5 Use ‘turn pots’ to achieve the desired motor speed at both speeds. Medium speed represents the mid speed between the two settings. For example, if the trickle speed ‘pot’ is set to 20% of full motor speed and the boost speed ‘pot’...
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Page 13: Performance Graphs
Performance Graphs 4.0.1 Airflow Characteristics for CMEV.4e / CMEV.4eHT Models... -
Page 14: Guarantee
The Guarantee Period This product has a 2 Year Guarantee as standard with the option to extend to a 6 Year Guarantee, subject to registration. Terms and conditions apply. 5.1.1 This does not affect your statutory rights. 5.1.2 Full details available on request from +44 (0) 1276 408404 or www.greenwood.co.uk / info@greenwood.co.uk... - Page 16 All information is believed correct at time of going to press. E&OE. All goods are sold according to Zehnder Group UK Ltd’s Standard Conditions of Sale which are available on request. All dimensions referred to are in millimetres unless otherwise shown. Zehnder Group UK Ltd reserves the right to change specifications and prices without prior notice.
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