Related Manuals for Greenwood Centair CMEV.4
Summary of Contents for Greenwood Centair CMEV.4
- Page 1 Centair CMEV.4 / CMEV.4e / CMEV.4eHT Mechanical Extract Ventilation (MEV) System Installation Instructions Commissioning Data: To be completed by the Commissioning Engineer. Refer to User/Homeowner Guide also supplied.
- Page 2 • CMEV.4e – Low Energy Version - 2 or 3 speed via hard wired switch. • CMEV.4eHT – Low Energy with Greenwood HumidiSM RT and Greenwood TimerSM RT Technology – 2 or 3 speed via hard wired switch. 1.1.6 Packaging Includes –...
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Page 3: Installation Instructions
1.1.12 Observe appropriate safety precautions if working on steps or ladders. Wear eye protection when breaking out wall or window materials, etc. 1.1.13 To disassemble the unit, disconnect from mains supply and use a screwdriver to segregate the electronic components and motor from the plastic housing. Dispose items in accordance with WEEE. 1.1.14 WEEE Statement This product may not be treated as household waste. - Page 4 2.2.3 Figure 1 - Optional Fifth Spigot Carefully cut out spigot cap Discard waste material Connect ductwork as with a bladed tool responsibly appropriate 2.2.4 Figure 2 - Mounting Orientations Ceiling Mounted in cupboard Wall Mounted Loft Mounted on platform Mounting 2.3.1 Determine the duct inlet and exhaust configuration and the best orientation for the unit for this installation, also...
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Page 5: Ducting Guidelines
A double-pole switch having a minimum contact separation of 3.0mm must be used to provide isolation for the unit. 2.5.7 The recommended switches for use with either models are the – Greenwood irvac; GS2 (2-position) or GS1 (3-position) switch (See Wiring Diagrams on page 6). GS2 Remote Switch Positions Function... -
Page 6: Wiring Diagrams
External wiring for CMEV.4 / CMEV.4e / CMEV.4eHT for continuous operation on trickle speed with boost operation via Greenwood GS2 2-position switch 2.6.2 External wiring for CMEV.4 / CMEV.4e / CMEV.4eHT for continuous operation on trickle speed with medium and boost operation via Greenwood GS1 3-position switch... - Page 7 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 the following table: GS1 Remote Switch Positions Function Trickle (Centre position)
- Page 8 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 9: On Site Commissioning
2.7.6 Fan Motor ssembly 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 10 Note; Fan performance can be adjusted between these set points for further fine tuning, as the motor is 100% variable in range. 2.8.6 CMEV.4eHT Only – Greenwood TimerSM RT and Greenwood HumidiSM RT The CMEV.4eHT features a fully automatic integral timer function and humidity function which monitors the homeowners’...
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Page 11: Performance Graphs
Performance Graphs 2.9.1 Airflow Characteristics for CMEV.4 Model 2.9.2 Airflow Characteristics for CMEV. 4e/CMEV.4eHT Model... - Page 12 Declaration of Performance Residential Ventilation Unit Greenwood Centair CMEV.4 Greenwood Airvac Greenwood Airvac Greenwood Airvac Greenwood Airvac Supplier Name or Trade Mark Manual Control Clock Control Central Demand Control Local Demand Control Supplier Model Identifier and Options Installed (via manual switch)
- Page 13 Declaration of Performance Residential Ventilation Unit Greenwood Centair CMEV.4e / HT Greenwood Airvac Greenwood Airvac Greenwood Airvac Greenwood Airvac Supplier Name or Trade Mark Manual Control Clock Control Central Demand Control Local Demand Control Supplier Model Identifier and Options Installed...
- Page 16 This does not affect your statutory rights. 4.1.3 Full details available on request from +44 (0) 870 900 1880 or www.greenwood.co.uk / info@greenwood.co.uk 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.
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