Greenwood Unity CV2GIP User manual

Unity CV2GI / CV2SVGI
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 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
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.
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.
Contents

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 5
2.0 General Overview
2.1.1
2.1.2
2.1.3
Greenwood HumidiSMARTTMmonitors 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.
Where an open-flued oil or gas-fuelled appliance is installed
precaution must be taken to avoid a back-flow of gases into
the room.
The CV2SVGIP fan must only be installed by using the supplied
Safety Extra Low Voltage (SELV) controller corresponding to the
markings on 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.
2.1.4
2.1.5
2.1.6
2.1.7
2.1.8
2.1.9
2.1.10
2.1.11
II
I
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

6 7
Controls
This section shows how to operate the Unity CV2GIP / CV2SVGIP
control panel.
Control anel
3.0 Homeowner Controls
3.1.1
Bathroom
Trickle Mode
Greenwood
HumidiSMARTTM
On / Off
Kitchen
Boost Mode
Greenwood
TimerSMARTTM
On / Off
3.1.3
3.1.2
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.

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
8 9
3.1.4 To Change the Greenwood TimerSMARTTMSetting
The Greenwood TimerSMARTTM monitors 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.
3.1.5To Change the Greenwood HumidiSMARTTMSetting
The Greenwood HumidiSMARTTM monitors 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.
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
TimerSMARTTM.

10 11
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
art 1 – System details and declarations
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.
• art 1 – System details and declarations
• art 2a – Installation details
• art 2b – Inspection of installation
• art 3 – Air flow measurement test and
commissioning details
5.0 Commissioning & Inspection Record
5.1.1
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

12 13
art 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)
art 2b – Inspection of Installation
2.3 Visual Inspections – General (all Systems) Tick as appropriate
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 leakages
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?
mm
m2
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
This section should be completed
before completing part 3.

14 15
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
art 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
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?

This Greenwood product (Unity CV2GI / CV2SVGI ) has a 2 Year
Guarantee.
This does not affect your statutory rights.
Full details available on request from [phone] or
www.greenwood.co.uk / [e-mail]
6.1.1
6.1.2
6.1.3
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 2015.
6.0 The Guarantee eriod
Zehnder Group UK Limited
Unit 4 Watchmoor Point
Camberley Surrey GU15 3AD
Customer Services: 01276 408404
Technical Services: 01276 408402
Email: [e-mail]
Web: www.greenwood.co.uk
05.10.933 Issue 5 December 2015