Greenwood Unity CV2GIP Assembly instructions

Unity CV2GIP / CV2SVGIP
Decentralised Mechanical Extract Ventilation (dMEV)
User / Homeowner Guide
Commissioning and Inspection Record:
Located on page 10 of this guide, should have been completed by the Commissioning Engineer.

User / Homeowner Information Page
1. Ventilation in Your Home 3
2. General Overview 4
3. Homeowner Controls 6
4. Servicing / Maintenance 10
5. Commissioning & Inspection Record 10
6. Guarantee / Warranty Information 16
2
Contents
WEEE Statement
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.

3
Your home has continuously running ventilation Unity CV2GIP / CV2SVGIP (dMEV) fans
installed. This consists of locally sited extract fans that form part of a whole house
ventilation approach. These fans extract air on a continual basis from the following areas
(defined as wet rooms within Building Regulations) in residential dwellings –
•Kitchen
• Bathroom
• Utility Room
•WC/Cloakroom
• Ensuite Bath/Shower Room
1.0 Ventilation In Your Home

Time ‘Switch Live’ is Active
0 – 5 minutes
5 – 10 minutes
10 – 15 minutes
15+ minutes
Over-run Boost Period
No over-run
5 minutes
10 minutes
15 minutes
The specific operation of your fan may vary depending on the way it has been installed.
The options are –
Trickle Speed: Operating on a continual basis.
Boost Speed: Activated manually using our GS2 switch or via the room light switch.
GS2 switch markings - Trickle (I) & Boost (II) Operation
Note: Other manufacturers switches may show different markings.
To maintain a healthy indoor environment the Unity CV2GIP / CV2SVGIP includes SMART
technology for Over-run Timer (Greenwood TimerSMARTTM)and Humidity
(Greenwood HumidiSMARTTM).
Greenwood TimerSMARTTM monitors the length of time that there is an occupancy
presence within a wet room (via the ‘switch-live’) and provides a fixed over-run time
period to best match the length of time that the ‘switch live’ is active (as shown below):
Note: The first 5 minutes will not activate an over-run.
This removes nuisance running noise and unnecessary energy wastage typically
associated with traditional timers.
4
2.0 General Overview
2.1.1
2.1.2
2.1.3
II
I

5
Greenwood HumidiSMARTTM monitors the ambient humidity within the wet room
environment and looks for short peaks of humidity made by either showering or bathing.
This smart technology ensures that your Unity CV2GIP / CV2SVGIP is not on boost for
prolonged periods of time, removing nuisance running noise and unnecessary energy
wastage typically associated with increases to background humidity which naturally
occurs with the changing seasons.
To maintain good indoor air quality within the dwelling it is important that the fan
remains in operation at all times unless switched off for maintenance. (See section 4.0
Servicing / Maintenance).
Depending on when your home was built, background window trickle ventilators may be
provided in dry habitable rooms. Trickle vents should not be installed in the same rooms
as the fan, as overall ventilation effectiveness can be reduced.
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 a 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.Always isolate
fan from mains supply before cleaning. Do not use solvents to clean this fan.
Siting Notes: Where an open-flued oil or gas-fuelled appliance is installed in the
kitchen,extract ventilation can cause the spillage of flue gases. Care must be
taken to ensure ventilation is reduced appropriately, as set out in the Building
Regulations. Kitchens with solid-fuel appliances should not have extract fans fitted.
The CV2SVGIP fan must only be supplied via Safety Extra Low Voltage (SELV)
corresponding to the markings on the appliance.
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9

6
Controls
This section shows how to operate the Unity CV2GIP / CV2SVGIP control panel.
Control Panel
3.0 Homeowner Controls
3.1.1
Bathroom
Trickle Mode
Greenwood
HumidiSMARTTM
On / Off
Kitchen
Boost Mode
Greenwood
TimerSMARTTM
On / Off
3.1.2

7
3.1.3 To View Fan Set Up / Status
Press any button to activate the panel. The current fan set up / status will be shown via
the green lights.
Example shows: Bathroom setting selected
Boost mode activated
Greenwood HumidiSMARTTMfeature selected
Note: The Unity CV2GIP / CV2SVGIP is
commissioned during installation to provide the
correct airflow requirements for your dwelling.
Post adjustment of the room setting or airflow
speeds is not available.

8
To Change the Greenwood HumidiSMARTTM Setting
The Greenwood HumidiSMARTTMmonitors the humidity of the extracted air at all times. A
rapid rise in humidity from a bath / shower, should be picked up by the sensor and should
cause the fan to automatically switch to Boost mode.
When humidity falls below a calculated threshold close to background levels, the fan
should return to trickle mode.
To identify current fan status, press any button to activate the panel. Upon
identification of control status, either press [ ] to activate or deactivate the Greenwood
HumidiSMARTTM.Please note the light should come on to indicate that the function is
active.
Factoryset to OFF
Option’s ON / OFF
Note: After approximately 10 seconds of
inactivity, the control panel lights should
turn off and save selection settings.
Note: This feature can be activated
at the same time as the Greenwood
TimerSMARTTM.
3.1.4

9
To Change the Greenwood TimerSMARTTM Setting
The Greenwood TimerSMARTTMmonitors the length of time the unit has been in boost mode
via the Switch Live. Once the Switch Live is deactivated the Greenwood TimerSMARTTM
over-run period should continue to run the unit for a calculated time if required.
Note: The first 5 minutes should not activate an over-run.
To identify current fan status, press any button to activate the
panel. Upon identification of control status, either press [ ] to
activate or deactivate the Greenwood TimerSMARTTM.Please
note the light should come on to indicate that the function is
active.
Factory set to OFF
Option’s ON / OFF
Note: After approximately 10 seconds of
inactivity, the control panel lights should turn
off and save selection settings.
Note: This feature can be activated
at the same time as the Greenwood
HumidiSMARTTM.
3.1.5
Time ‘Switch Live’ is Active
0 – 5 minutes
5 – 10 minutes
10 – 15 minutes
15+ minutes
Over-run Boost Period
No over-run
5 minutes
10 minutes
15 minutes

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The Unity CV2GIP / CV2SVGIP contains a unique backward curved mixed flow impellor
that has been designed to reduce against any build up of dirt. The fan motor has sealed
for life bearings, which do not require lubrication.
Periodic cleaning of the fans front cover and casing can be carried out using a soft damp
cloth. Care must be taken when wiping around the control panel.
Warning: The Unity CV2GIP / CV2SVGIP must be isolated from the mains supply before
removing the electronics cover. Do not use solvents to clean this fan.
Cleaning and user maintenance shall not be made by children without supervision.
Please note that your stored fan settings will not be lost during any interruptions to
your fan’s power supply.
4.0 Servicing / Maintenance
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
This section should be used to record all installation details. The Commissioning Engineer
should use the following Parts 1 to 3, to record important information relating to the
installation, of which, should be incorporated into the Home Information Pack for the
homeowner to keep.
• Part 1 – System details and declarations
• Part 2a – Installation details
• Part 2b – Inspection of installation
• Part 3 – Air flow measurement test and commissioning details
5.0 Commissioning & Inspection Record
5.1.1

11
Part 1 – System details and declarations
System 3 – Decentralised Mechanical Extract Ventilation
Zehnder Group UK Limited
1.1 Installation Address Details
Dwelling Name/Number
Street
Locality
Town
County
Post Code
1.2 Installation Details
System Classification
Manufacturer
Model Number
Serial Number (where available)
Location of dMEV fans

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Part 2a – Installation details
2.1 Installation Checklist – General (all Systems) Tick as appropriate
Has the system been installed in accordance with manufacturer’s
requirements?
Have relevant system installation clauses been followed as detailed
in Tables 1, 3, 5 and 7 as applicable?
Type of ductwork installed (e.g. rigid, semi-rigid)
If any deviation from Tables 1, 3, 5 and 7, these
should be detailed here.
Description of installed controls
(e.g. timer, central control, humidistat, PIR, etc)
Location of manual / override controls
Yes No
Yes No
2.2 Installation Engineer’s Details
Name
Company
Address Line 1
Address Line 2
Telephone Number
Post Code
Signature
Competent Person Scheme /
Registration Number (if applicable)
Date of Installation (completion)

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Part 2b – Inspection of Installation This section should be completed before completing part 3.
2.3 Visual Inspections – General (all Systems) Tick as appropriate
mm
m2
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Total installed equivalent area of background ventilators in dwelling?
Total floor area of dwelling?
Does the total installed equivalent ventilator area meet the requirements
given in Tables 5.2a, 5.2b, or 5.2c in ADF?
Have all background ventilators been left in the open position?
Have the correct number and location of extract fans/terminals been installed
that satisfy Table 5.2a in ADF?
Is the installation complete with no obvious defects present?
Do all internal doors have sufficient undercut to allow air transfer between
rooms (i.e. 10 mm over and above final floor finish)?
Has all protection/packaging been removed (including from background
ventilators) such that system is fully functional?
For ducted systems, has the ductwork installation been installed in such
manner that air resistance and leakage is kept to a minimum?
Are the correct number and size of background ventilators provided that
satisfy ADF?
Has the entire system been installed such that there is sufficient access for
routine maintenance and repair/replacement of components?
Upon initial start up, was any abnormal sound or vibration experienced, or
unusual smells detected?

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2.4 Inspector’s Details
Name
Company
Address Line 1
Address Line 2
Telephone Number
Post Code Signature
Competent Person Scheme / Registration Number (if applicable)
Date of Inspection (completion)
Room reference
(location of
terminals)
Kitchen
Bathroom
En Suite
Utility
Other…
Measured
Air Flow
High Rate (l/s)
Measured
Air Flow
Low Rate (l/s)
Design Air Flow Low
Rate (l/s) Refer to
Table 5.1a in ADF
Design Air Flow High
Rate (l/s) Refer to
Table 5.1a ADF
3.2 Air Flow Measurements
Part 3 – Air flow measurement test and commissioning details
3.1 Test Equipment
Schedule of air flow measurement equipment used, (model and serial)
1.
Date of last UKAS calibration

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3.4 Test Engineer’s Details
Name
Company
Address Line 1
Address Line 2
Telephone Number
Post Code
Signature
Competent Person Scheme /
Registration Number (if applicable)
Date of Test
3.3 Commissioning Tick as appropriate
Yes No
Have controls been set-up in accordance with the manufacturer’s
recommendations?

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This Greenwood product (Unity CV2GIP / CV2SVGIP)has a 2 Year Guarantee.
This does not affect your statutory rights.
Full details available on request from [phone] or
www.greenwood.co.uk / [email protected].uk
6.1.1
6.1.2
6.1.3
Zehnder Group UK Ltd
Greenwood House, Brookside Avenue, Rustington, West Sussex, BN16 3LF
Main Line Tel: [phone]
Technical Services: [phone]
Main Line Fax: [phone]
Web: www.greenwood.co.uk
Email: [email protected]
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. © Copyright Zehnder Group UK Ltd 2014.
6.0 The Guarantee Period
05.10.933 Issue 3 June 2014