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2 - EN

 Foreword

 Read this document carefully before use. 

With this document you can install, commission and 
perform the maintenance of the ComfoAir Q in a safe 
and optimal manner. In this document the ComfoAir 
Q will be referred to as “the unit”. The unit is subject 
to continuous development and improvement. Thus 
the unit may be slightly different from the given 
descriptions.

The following pictograms are used in the Zehnder 
documents:

Symbol

Meaning

Point of interest.

Risk of compromised performance or damage of 
the ventilation system.

Risk of personal injury.

Information found in the user manual

General information about the ventilation system.

Warranty and liability conditions.

EEC declaration of conformity.

How to replace the filters in the unit.

How to clean the valves and/or grilles in the ventilation system.

How to use the display on the unit.

 Questions

Speak to your supplier when you have any questions or would like to order a new document or new filters. The 
contact details of the main supplier are:

Zehnder Group UK Ltd
Unit 4 Watchmoor Point • Camberley, Surrey • GU15 3AD
T +44 (0) 01276 605800 • F +44 (0) 1276 605801
[email protected] • www.zehnderpassivehouse.co.uk

All rights reserved.

This documentation has been made with the utmost care. The publisher cannot be held liable for any damage 
caused as a result of missing or incorrect information in this document. In case of disputes the English version of 
the instructions will be binding.

Summary of Contents for ComfoAir Q

Page 1: ...Cooling Fresh Air Clean Air Heating Ventilation system Zehnder ComfoAir Q Installer manual...

Page 2: ...the ventilation system Warranty and liability conditions EEC declaration of conformity How to replace the filters in the unit How to clean the valves and or grilles in the ventilation system How to us...

Page 3: ...3 Installation of the condensation drain 15 5 5 Installation of the air ducts 16 5 6 Installation of the valves and or grilles 17 6 Commissioning procedures 18 7 Operation 19 7 1 Overview of the displ...

Page 4: ...ess to the main power fuse of the unit 31 9 4 How to change the location of the pre heater 31 9 5 How to gain access to the top section sensor 32 9 6 How to remove the modulating by pass valve 32 9 7...

Page 5: ...areas with a higher than average humidity such as bathroom or w c This will prevent condensation on the outside of the unit The permissible temperature of the air to be moved ranges between 20 C to 60...

Page 6: ...r General IP classification IP40 ISO classification B Weight 50kg Filter class Outdoor air G4 F715 Extract air G4 4 1 ComfoAir Q 350 1 2 3 4 5 6 7 8 9 10 0 7 0 9 1 1 1 3 37 40 43 46 49 0 50 100 150 20...

Page 7: ...51 54 57 0 50 100 150 200 250 0 50 100 150 200 250 300 350 400 450 500 550 600 Pst Pa Qv m h ComfoAir Q600 GB ST SFP W l s Lw dB A Qv m h Pst Pa P W cos SFP Wh l s Lw supply dB A Lw extract dB A Lw c...

Page 8: ...tion of the connected cables E Identification plate detailing information on the unit not visible F 2 ComfoNet plug in connections G ComfoNet RJ45 connection H Front cover for an air tight seal I Disp...

Page 9: ...EN 9 4 5 Dimension sketch 850 40 160 190 570 123 280 5 725 490 10 25 235 265 250 100 100 850 40 180 200 570 123 280 5 725 490 235 265 250 100 100 ComfoAir Q 350 ComfoAir Q 450 ComfoAir Q 600...

Page 10: ...heck the pricelist of the supplier for the article codes and prices of all available sets 6 2 1 7 8 2 3 3 4 1 11 7 8 9 10 12 9 Position Part 1 Filter cap set 2x 2 Filter set G4 G4 1x 1x Filter set G4...

Page 11: ...by pass actuator Modulating by pass actuator RD Red M1 Exhaust motor Supply motor GN Green M2 Supply motor Exhaust motor YE Yellow S1 Sensor outdoor air Sensor extract air GY Grey S2 Exhaust air press...

Page 12: ...30m 7b Post heater control 0 10Vdc output 10Vdc 10mA 30m 8 0 10V input 3 0 10Vdc input 12Vdc 37 5mA 30m 9 0 10V input 1 0 10Vdc input 12Vdc 37 5mA 30m 10 0 10V input 4 0 10Vdc input 12Vdc 37 5mA 30m 1...

Page 13: ...laries Open the semi transparent visor Pull the cable tray cover forwards Install the necessary ancillaries as instructed in their associated manuals 6 Example siphon 7 Example air duct 8 Example valv...

Page 14: ...Install the necessary ancillaries as instructed in their associated manuals 6 Example siphon 7 Example air duct 8 Example valve Example grille Install the siphon to the bottom of the unit as instruct...

Page 15: ...not install a water lock U bend on to the unit On warm days the water will evaporate from the siphon Enthalpy exchanger installed When the unit is fitted with an enthalpy exchanger the humidity from t...

Page 16: ...f condensation on the outside of the ducts Zehnder recommends that you fit thermal and damp proof insulation to the supply duct from the unit up to the supply valves and or grilles This will prevent u...

Page 17: ...good transfer of air throughout the dwelling there should be a grille or gap near the inside doors The grille or gap must provide an overflow of at least 12 cm2 per l s This is equivalent to A gap un...

Page 18: ...advanced menus Fill in the installation test report in the back of the user manual Attention point commissioning wizard Right Left Example siphon You can ask for the required password at Zehnder Right...

Page 19: ...one with all your operating options 1 Select BACK until you reach the main screen 2 Close the visor 7 2 2 How to access the installer settings MENU INSTALLER SETTINGS 1 Select SHIFT for at least 4 sec...

Page 20: ...STHEATER3 LOG OUT ALTITUDE 0 10V 13 FACTORY DEFAULTS RESET FIRE PLACE PRESENT 0 10V 23 RESET ERRORS UNBALANCE 0 10V 33 RESET ANALYSIS DIRECT FAN CONTROL 0 10V 43 PERIPHERALS ERRORS SERVICE MODE 0 10V...

Page 21: ...t the RESET options of the filters FILTER WARNING to set the time necessary for ordering the new filters Default 21 days RESET FILTER COUNT to replace the filters before the filter warning has appeare...

Page 22: ...L BAND set the proportional value of the control method Default 100 INTEGRAL TIME set the integral value of the control method Default 300s 0 10V 23 To set the control options of the second 0 10V inpu...

Page 23: ...slate the incoming signal from an 0 10V sensor into a corresponding airflow request between the minimal and maximal set airflow default setting FLOW PRESET the unit will translate the incoming signal...

Page 24: ...rom Zehnder In the chapter about the service parts you can see which special service sets are available Always disconnect the power supply of the unit before you start working on the ventilation syste...

Page 25: ...s instructed in the chapter procedure for opening the unit Open the semi transparent visor Change the unit to SERVICE MODE Disconnect the power to the unit Remove the 3 screws of the front cover Remov...

Page 26: ...fan follow the next steps 1 1 2 2 3 Remove the modulating by pass valve as instructed in its relevant chapter Open the semi transparent visor Change the unit to SERVICE MODE Disconnect the power to t...

Page 27: ...How to remove the modulating by pass valve 8 6 Maintenance of the pre heater Inspect the pre heater at least once every 4 years 1 2 3 Remove the front cover as instructed the chapter procedure for op...

Page 28: ...ir ducts Inspect the air ducts at least once every 4 years 1 Example valve Example grille 2 Example air duct 3 Remove the valves and or grilles Zehnder recommends noting down the setting and location...

Page 29: ...es in their guiding channels Place the bottom edge of the front behind the raised edge of the bottom plate This will guarantee an air tight seal after the screws are tightened Install all parts back i...

Page 30: ...chapter what to do in the event of a malfunction alert troubleshooting you can find how to solve all malfunction codes 9 1 How to gain access to the ComfoNet connectors on the unit 1 2 3 1 2 3 Open th...

Page 31: ...Unscrew the 2 screws of the display cover Open the display cover Pull the pre heater communication and power cable form the control PCB Pull the pre heater including its cable and grommet from the un...

Page 32: ...the unit the filter locations are Left side Right side When the supply and extract air are to the left side of the unit the filter locations are Left side Right side Pull the sensor from the inside of...

Page 33: ...g the clamp away from the valve pull the valve towards you Release the connection joint of the modulating by pass valve Remove the insulation cover behind the modulating by pass valve 4 5 6 1 2 Remove...

Page 34: ...detecting an incorrect humidity HUMID_SUP ERROR The supply air humidity sensor is detecting an incorrect humidity INIT ERROR The unit has not been commissioned OPTION_BOX CONNECT ERROR There is no co...

Page 35: ...mits a red light When there is a malfunction alert on the display of the unit all the LED s of the ComfoSwitch C will flash 9 12 Malfunction alerts on the Control App 9 12 Malfunction alerts on the Co...

Page 36: ...et errors 5 Wait for 2 minutes 6 Go to the next question 4 Did the error come back Yes 1 Disconnect the power from the unit 2 Check the two hoses on the top side of the fan 3 Go to the next question N...

Page 37: ...e unit open and the heat exchanger removed after replacing the fan 4 Connect the power to the unit Risk of electrical shock 5 Reset the errors as instructed in the chapter How to reset errors 6 Wait f...

Page 38: ...R HUMID_SUP ERROR The exhaust supply air humidity sensor is detecting an incorrect humidity Question Answer Action 1 Is the humidity protection on 5 Yes 1 Increase the ventilation to maximum 2 Reset t...

Page 39: ...nance No Follow the procedure for ending the maintenance Malfunction code GROUND_HEAT_CONNECT ERROR POSTHEAT_ CONNECT ERROR There is no communication between the ComfoFond L Q post heater and the unit...

Page 40: ...r finishing all the maintenance 2 Connect the power to the unit Risk of electrical shock 3 Stop the service mode as instructed in the chapter How to change the operation mode of the unit 4 Reset the e...

Page 41: ...he unit 2 Follow the procedure for ending the maintenance Malfunction code PREHEAT_LOCATION ERROR The pre heater is not in the expected location Question Answer Action 1 Is the orientation of the unit...

Page 42: ...t 3 Reset the errors as instructed in the chapter How to reset errors 4 Wait for 2 minutes 5 Go to the next question No 1 Reconnect the sensor connector 2 Follow the procedure for ending the maintenan...

Page 43: ...rocedure for ending the maintenance 4 Did the error come back Yes 1 Disconnect the power from the unit 2 Get the mid section sensor service set 3 Replace the sensor as instructed in its supplied manua...

Page 44: ...s Malfunction code TEMP_SENSOR_ETA ERROR TEMP_SENSOR_ODA ERROR The extract outdoor air sensor is detecting an incorrect temperature Question Answer Action 1 Is the temperature between 40 C and 70 C Ye...

Page 45: ...mperature is low in the winter Question Answer Action 1 Is the modulating by pass function set to OPEN 9 Yes Set the modulating by pass function to AUTO or DISABLE 9 No Go to the next question 2 Is th...

Page 46: ...Is the condensation drain connected correct Yes Clean the condensation drain as instructed in the chapter Maintenance of the condensation drain No Reconnect the condensation drain Problem The ancilla...

Page 47: ...ection Zehnder Control App The Control App is available for Android and IOS devices An installed ComfoConnect LAN C is necessary to translate the signal from the Control App Zehnder Timer RF A connect...

Page 48: ...y to the unit via a ComfoNet connection The Zehnder ComfoConnect LAN C is also available in a Wi Fi KIT version Standby switch A connected option box is necessary to translate the signal from the stan...

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Page 52: ...eaning R Supply and extract air to the right side L Supply and extract air to the left side ERV Enthalpy exchanger installed ODA Outdoor air SUP Supply air ETA Extract air EHA Exhaust air ZGNL Manual_...

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