Zehnder Rittling ComfoAir Q TR User Manual (English)

Other manuals for Zehnder Rittling ComfoAir Q TR

Questions and Answers:

C
Christopher McbrideSep 8, 2025
What to do for TEMP_SENSOR_ETA, TEMP_SENSOR_ODA, TEMP_SENSOR EHA, or TEMP_SENSOR_SUP ERROR on Zehnder Rittling Fan?
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  Leon HartSep 9, 2025
  If you're getting a TEMP_SENSOR_ETA ERROR, TEMP_SENSOR_ODA ERROR, TEMP_SENSOR EHA ERROR, or TEMP_SENSOR_SUP ERROR, ensure the temperature inside the unit is within the allowed range. If the outdoor temperature is within range, set the unit to PRESET 3 to speed up temperature change. If the internal temperature is within range, inspect the heat exchanger as instructed in the chapter “Maintenance of the heat exchanger”. After these steps, reset the errors.
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Sherri SmithAug 23, 2025
How to fix the EXTERNAL FILTER ALARM malfunction code on my Zehnder Rittling ComfoAir Q TR Fan?
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  Carlos LiAug 23, 2025
  To resolve the EXTERNAL FILTER ALARM, replace or clean the external filter as instructed in its relevant manual. Then, reset the errors as instructed in the chapter “How to reset errors”. Finally, fill in the maintenance log (if present).
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Darren RodriguezAug 25, 2025
What should I do if my Zehnder Rittling Fan shows the malfunction code EXPECT FILTER CHANGE SOON?
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  John HardinAug 25, 2025
  If your Zehnder Rittling Fan displays the malfunction code 'EXPECT FILTER CHANGE SOON', replace the filters right away as instructed in the user manual.
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wendypenningtonAug 27, 2025
Why does my Zehnder Rittling ComfoAir Q TR show a TEMP_SUP_MIN ERROR, and how can I fix it?
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  Wendy VegaAug 27, 2025
  The TEMP_SUP_MIN ERROR may appear if the outdoor temperature is too low. Wait until the outdoor temperature increases above 0°C. Alternatively, increase the return air temperature above 12°C. You can also try switching the extract fan on. If these steps don't work, you might need to get the modulating bypass actuator service set and replace the modulating bypass actuator as instructed in its supplied manual or reconnect the modulating bypass actuator connector as described in the technical specification chapter. After any of these solutions, reset the errors as instructed in the chapter “How to reset errors.”
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Harold JohnsonAug 27, 2025
What does the malfunction code CCOOL_COMPRESSOR ERROR mean on my Zehnder Rittling ComfoAir Q TR, and how do I resolve it?
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  Lauren LeeAug 27, 2025
  The malfunction code CCOOL_COMPRESSOR ERROR indicates an issue with the cooling compressor. To address this, first, reset the errors as instructed in the chapter “How to reset errors”. If the problem persists, get the ComfoCool Q600 skid service set and replace the ComfoCool Q600 cooling skid as instructed in its supplied manual, then follow the procedure for ending the maintenance.
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Christopher HillAug 29, 2025
What does CCOOL_TEMP ERROR mean on Zehnder Rittling Fan and how to fix it?
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  Jamie WilliamsAug 29, 2025
  The CCOOL_TEMP ERROR indicates a temperature sensor issue. Try reconnecting the temperature sensor and then follow the procedure for ending the maintenance. If that doesn't work, you may need to get the ComfoCool Q600 NTC condenser sensor service set or the ComfoCool Q600 NTC supply sensor service set, and replace the sensor as instructed in its supplied manual, then follow the procedure for ending the maintenance.
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johnsonstevenSep 13, 2025
What causes the UNBALANCE ERROR on my Zehnder Rittling ComfoAir Q TR, and how can I resolve it?
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  ashley60Sep 13, 2025
  The UNBALANCE ERROR can be caused by several factors. First, solve any other errors as instructed in their relevant troubleshooting table. If the error persists, turn off any external units causing changes in air pressure. Other potential solutions include replacing the filters, cleaning the valves, cleaning the heat exchanger, defrosting the heat exchanger, cleaning the fan, cleaning the ventilation ducts, and solving air leakage.
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Donna McdonaldSep 10, 2025
What should I do if my Zehnder Rittling Fan displays 'DANGER! OVERHEATING!'?
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  Benjamin DonaldsonSep 10, 2025
  If your Zehnder Rittling Fan displays 'DANGER! OVERHEATING!', solve the problem for the extreme temperature. Reset the errors as instructed in the chapter “How to reset errors”. Perform all maintenance actions to check if there is permanent damage to the system and follow the procedure for ending the maintenance. Also, solve the sensor errors as instructed in their relevant troubleshooting table.
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mandersonSep 7, 2025
How do I resolve the PREHEAT_LOCATION ERROR on my Zehnder Rittling ComfoAir Q TR?
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  hgarzaSep 7, 2025
  To resolve the PREHEAT_LOCATION ERROR, change the location of the pre-heater as instructed in the chapter “How to change the location of the pre-heater”. Reset the errors as instructed in the chapter “How to reset errors”. If that doesn't work, set the orientation of the unit correct by running the complete commissioning wizard and reset the errors.
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joshuajohnsonSep 4, 2025
How do I troubleshoot the EXT_PRESSURE_EHA ERROR or EXT_PRESSURE_SUP ERROR on my Zehnder Rittling ComfoAir Q TR Fan?
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  vanessajonesSep 4, 2025
  To troubleshoot the EXT_PRESSURE_EHA ERROR or EXT_PRESSURE_SUP ERROR, first, solve the blockage. You can remove condensate from the heat exchanger by ventilating on setting PRESET 3. Alternatively, reconnect the sensor connector as described in the technical specification chapter. If the problem persists, get the mid-section sensor service set and replace the sensor as instructed in its supplied manual. After each attempt, follow the procedure for ending the maintenance and reset the errors as instructed in the chapter “How to reset errors.”

Zehnder Rittling ComfoAir Q TR Specifications

General

Mounting	Wall-mounted
Heat Exchanger Type	Counterflow
Heat Recovery Efficiency	Up to 95%
Frequency	50 Hz
Type	Heat Recovery Ventilation Unit
Power Supply	230 V, 50 Hz
Filter	G4
Bypass	Automatic bypass