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User Information

11

How do I change my fan’s settings

Press button on fan

If the 'trickle or boost' symbols with a flow rate lights up, 
your fan has been commissioned locally. You can change 
the following settings:

Touch Smart Timer button for on or off

Touch Smart Humidity button for on or off

If only the 'trickle or boost' symbols & no airflow speeds light 
up, your fan has been commissioned via our APP.  To review / 
change your settings, download our ‘Unity CV3 APP’ from  
Google Play. You can view your settings by removing the front 
cover and placing your android device over the NFC symbol. 
Follow APP to read settings on your device for:

If fan setup has been locked you cannot change anything

If unlocked you will be able to adjust:

Smart Humidity on / off

Selected timer mode:
o Smart Timer on / off
o Silent mode delay-on-timer, 1-60 minute range

Night mode setting to deactivate the boost mode during 
your selected time period

Troubleshooting

I don’t think that my fan is working

My fan is running all the time

My fan is running faster and noisier

My fan still runs faster and noisier

when I turn the light off

Why can’t I turn the fan off

Answer

The fan is very quiet when the room’s light is off, but it is still 
extracting and working to provide you with enhanced comfort

If in doubt, remove the front cover to expose the fan. If 
the fan impellor is not rotating then contact your local 
installer.

This is correct; it will run at a low speed whilst your room is 
unoccupied to provide continuous ventilation

Your fan will automatically go into “boost” mode when you turn
the light on or if the Smart Humidity is activated, when you have
a bath / shower / generate steam via cooking  

The fan will run at a faster speed which generates more noise as
more air is being extracted

Has the bathroom light been left on for more than 5 minutes?

If yes, your fan has the Smart Timer activated and the fan will run
at the higher noisier “boost” rate between 5 - 15 minutes and it
will then return to the lower quieter continuous speed setting

Your fan has been designed to ventilate the room continuously (i.e.
24/7) to improve the indoor air quality and enhance your comfort

Question

Summary of Contents for Unity ZCV3si

Page 1: ...ng extract fan designed to offer a simplistic approach to meet Building Regulations and provide an energy efficient domestic ventilation solution to improve indoor air quality in dwellings Please read instructions before commencing the installation Please make these instructions available for the user ...

Page 2: ...ed where it would be subject to a direct heat source in excess of 40 C e g at least 600mm distance from cooker hob Observe appropriate safety precautions if working on steps or ladders Wear eye protection when breaking out wall or ceiling materials etc To disassemble the unit disconnect from mains supply and use a screwdriver to segregate the electronic components and motor from the plastic housin...

Page 3: ...te anticlockwise to remove Main body Outer cover Cut the duct to depth of the plasterboard or tiled wall with slight fall to exterior Make provisions for cable Fill in any gaps with mortar or foam and make good internal and external walls Make sure that ducting retains its original shape Ø between 102mm 117mm to suit ducting dimensions Allow a clearance of 50mm from wall ceiling edges around the f...

Page 4: ...he fan anticlockwise to unlock position and remove cover Connect ducting to the spigot on the back of the Unity ZCV3si Note If using flexible ducting ensure this is pulled taut to a min 90 stretch capacity between fan and termination Retaining screw STEP 1 STEP 2 Lock position Unlock position ...

Page 5: ... terminal block as per wiring diagram tighten screws of the terminal block Note A facility to park the earth cable has been provided as the fan is double insulated no connection to earth is required Electrical Installation Preparation Installation or disconnection must be carried out by a qualified Electrician and all wiring must conform to local regulations Isolate electricity supply before start...

Page 6: ...formance Reattach the front cover by rotating clockwise utilising the guidance rail until firmly secured by the retaining clips STEP 5 Retaining screw Unlock position Lock position Turn power off and locate main body cover via the arrow unlock position rotate clockwise to lock position Tighten retaining screw until main body cover cannot be opened Turn power on and follow respective commissioning ...

Page 7: ...ee Step 5 on page 6 Default setting Off To activate press required button the light adjacent to your selection will go solid The Smart Humidity sensor automatically registers the speed at which the humidity in the room changes If there is a rapid change it reacts to a rise in room humidity caused by the user and switches on the ventilator The Smart Timer monitors the length of time that there is a...

Page 8: ... will start to flash Note Do not press any buttons Open the Unity CV3 APP remove outer cover of your fan and when prompted match your Android device s NFC with the NFC symbol on the main body of the fan please refer to your Android device instructions for the NFC location Click on the Product Setup section and follow the APP on screen instructions Airflow 18 m3 h 29 m3 h 36 m3 h 47 m3 h 58 m3 h Se...

Page 9: ...rrow unlock position rotate clockwise to lock position Tighten retaining screw until main body cover cannot be opened Turn the power to the fan ON recommission either via your fan or the APP refer to respective commissioning section for via the fan see page 7 or for via the APP see page 8 The Unity ZCV3si will start to go through its initialisation sequences for the flow rate commissioning See pag...

Page 10: ...e 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 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...

Page 11: ...fan is running all the time My fan is running faster and noisier My fan still runs faster and noisier when I turn the light off Why can t I turn the fan off Answer The fan is very quiet when the room s light is off but it is still extracting and working to provide you with enhanced comfort If in doubt remove the front cover to expose the fan If the fan impellor is not rotating then contact your lo...

Page 12: ...eved correct at time of going to press All dimensions referred to are in millimetres unless otherwise shown E OE All goods are sold according to Zehnder Group Sales International Standard Conditions of Sale which are available on request See website for warranty period details Zehnder Group Sales International reserves the right to change specifications and prices without prior notice Copyright Ze...

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