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4 - EN

EN - 5

1  Safety instructions

  Always obey the safety regulations, warnings, 

comments and instructions given in this 
document. When the safety regulations, warnings, 
comments and instructions in this document are 
not obeyed personal injury or damage to the unit 
can occur;

  Always obey the general and locally applicable 

construction, safety and installation instructions 
of the local council, electricity and water boards 
or other agencies;

  Always disconnect the power supply of the unit 

before you start working on the ventilation system. 
The unit can cause personal injury when it is open 
while running. Make sure the unit cannot switch 
back on by accident;

  Always connect air ducts of at least 900mm to the 

unit before you connect the power to the unit. This 
ensures the motor cannot be touched while the 
unit is active;

  After installation all parts that can cause personal 

injury are secured behind the casing. Tools are 
required to open the casing;

  The installation, commissioning and maintenance 

must be carried out by a certified engineer unless 
instructed differently. A non-certified engineer can 
cause personal injury or damage the performance 
of the ventilation system;

  Do not modify the unit or the specifications 

given in this document. A modification can cause 
personal injury or damage the performance of the 
ventilation system;

  Always take ESD-inhibiting measures when 

dealing with electronics, such as wearing an 
antistatic wristband. The electronics can be 
damaged by static charges;

  Install the unit on a 230V~ 50Hz mains connection. 

Any other power connection will damage the unit;

  The unit is designed for residential use. The unit 

is not made for industrial use, such as swimming 
pools or saunas. Installation in an industrial 
environment can damage the unit;

  Ensure this document is left with the unit after 

use.

2  Installation conditions

  Check if the installation area is frost-free;

  Zehnder does not recommend you to install the 

unit in 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°C;

  Check if the electrical installation is suitable for 

the maximum power of the unit. You can find the 
maximum power values in the chapter “Technical 
specifications”.

  Check if the electrical installation is suitable for 

the maximum power of the option box. You can 
find the technical specifications of the option box 
in the chapter “Wiring diagram option box”.

  Check if the installation area of the unit has 

sufficient room for the next aspects:

  - The air duct system around the unit;
  -  Carrying out maintenance activities in front of 

the unit (at least 1m);

  - The condensation drain below the unit (optional);
  -  The wiring of an external wired controller 

(optional);

  - The electrical power connection of the unit.

3  Transport and unpacking

The permissible storage and transport 
temperature ranges between -40°C to +60°C.
Transport and unpack the unit with 
care. Discard the packing material in an 

environmentally friendly manner.

Checking the delivery 

Speak to your supplier immediately in case of 
damage or an incomplete delivery. The delivery 
should at least include: 

  The unit: check the identification plate to ensure 

that it is the correct type;

  Mounting bracket;

  Power cord;

  Documentation;

  Unit with standard heat exchanger: 

  - Condensation drain adapter 32mm tube;
  - Condensation drain adapter 1¼” thread tube;
  - Condensation drain sealing cap.

  Unit with enthalpy exchanger: 

  - 2 condensation drain sealing caps.

Information found on the identification plate

Suffix

Meaning

ComfoAir

Product family name.

Q

Product type name.

350

Maximum air volume of 350 m3/h.

450

Maximum air volume of 450 m3/h.

600

Maximum air volume of 600 m3/h.

GB

Country code of the unit.

R

The unit has been set with the supply and extract air 
to the right side as default.

L

The unit has been set with the supply and extract air 
to the left side as default.

ST

The unit has four fixed air connections.

PH

The unit has a pre-heater installed as default.

ERV

The unit has an enthalpy exchanger installed as 
default.

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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