3
1.0 General Description / Physical Specification
1.1 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).
1.1.2 A boost speed facility is provided to increase the ventilation rate during peak times, providing a comfortable
indoor environment. A boost switch (not supplied) should be wired to provide this operation (see section - 2.5
Electrical).
1.1.3 These products feature on PCDB and part of the process requires the Installation Checklist for MEV
products to be completed and submitted to building control, available at www.ncm-pcdb.org.uk, along with
all other relevant paperwork.
1.1.4 These instructions cover the following units –
• CMEV.4e –
Low Energy Version
- 2 or 3 speed depending on wiring & sensor
configuration (see page 8).
• CMEV.4eHT –
Low Energy with Greenwood HumidiSMART
TM
and Greenwood
TimerSMART
TM
Technology
- 2 or 3 speed depending on wiring &
sensor configuration (see page 8).
1.1.5
Packaging Includes –
1 x CMEV.4e or CMEV.4eHT Unit
2 x Spigot Blanking Caps
Quick User / Quick Installer Guide
1.1.6 Ancillary Items Required • 125mm Ducting (rectangular ducting 204 x 60mm can be used,
where appropriate)
• 125mm Grilles
• ZGS2 Hardwired switch providing switching between low and high (option)
• ZGS1 Hardwired switch providing switching between low, medium and
high (option).
1.1.7
Warning:
This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been given
supervision or instruction concerning use of the appliance in safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without
supervision.
1.1.8 Where an open-flued oil or gas-fuelled appliance is installed, precautions must be taken to avoid a back-flow of
gases into the room.
1.1.9 The design, material specification and installation must only be carried out by “competent persons”. Electrical
installation must be carried out by a qualified Electrician.
1.1.10 If the supply cord is damaged, it must be replaced by a special cord / assembly available from the manufacturer
or its service agent. The replacement must be carried out by a qualified electrician in accordance with IEE or
local regulations.
1.1.11 Observe appropriate safety precautions if working on steps or ladders. Wear eye protection when breaking out
wall or window materials, etc.
1.1.12 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.
