Service Parts; Product End Of Life - Zehnder ComfoCool Q600 Installations Anleitung

Problem/
malfunction
No cooling
Irregular ventilation

5.3 Service parts

Part
ComfoCool Q600 Skid
ComfoCool Q600 PCB
ComfoCool Q600 data cable
NTC supply sensor
NTC condenser sensor
Overpressure switch
Support frame
EN - 26
Indications Check / action
No voltage Check that the mains cable is properly connected to the ComfoCool Q600. Check the fuse on the
ComfoCool Q600s PCB. Replace the PCB.
Compressor off; Check whether the compressor switch on the PCB is working. Check the overpressure switch.
Heat-recovery unit Replace the cooling skid.
displays: "CCOOL_
COMPRESSOR ERROR"
Compressor on; Check whether there is enough coolant in the system. Check the refrigerant circuit for leakages.
Heat-recovery unit
Replace the cooling skid.
displays: "CCOOL_
COMPRESSOR ERROR"
Compressor on Check whether the supply and exhaust ducts are insulated. Check whether the unit produces
condensation. Check that the condenser gets hot and the evaporator cold. Replace the cooling skid.
Compressor off; The condenser has overheated. There is insufficient air to cool the condenser. Check the heat-
Heat-recovery unit recovery units settings. The unit waits until the temperature of the condenser has fallen adequately.
displays: "DANGER! Check after a few minutes whether the system has reactivated.
CCOOL OVERHEATING!"
Heat-recovery unit Check the condenser temperature sensor is properly connected. Measure the resistance of the
displays: "CCOOL_TEMP sensor (approx. 10 kOhm at 25˚C). Replace the sensor.
ERROR" Check the supply temperature sensor is properly connected. Measure the resistance of the sensor
(approx. 10 kOhm at 25˚C). Replace the sensor.
Heat-recovery unit The heat-recovery units supply air sensor does not emit a signal. Please refer to the heat-recovery
displays: "TEMP_ unit manual for a solution to this problem.
SENSOR_SUP ERROR"
Heat-recovery unit The ComfoCool Q600 is not sending a signal to the heat-recovery unit. Check the data cable
displays: "CCOOL_ connections between the ComfoCool Q600 and the heat-recovery unit.
CONNECT ERROR"
Heat-recovery unit The supply fan is deactivated or fails to give a signal. Please refer to the heat-recovery unit manual
displays: "FAN_SUP for a solution to this problem.
ERROR"
Heat-recovery unit The exhaust fan is deactivated or fails to give a signal. Please refer to the heat-recovery unit manual
displays: "FAN_EHA for a solution to this problem.
ERROR"
none Check whether the ventilation level is high enough. Check that the flow rate is set-up properly. At
least 200m3/h is required for effective operation. If the flow rate is set up too low, then the unit will
increase it briefly to keep the condenser temperature at a safe level.
Article number
400400040
400400066
400400067
400300071
400300072
400300073
471502008

5.4 Product end of life

When scrapping the unit or the cooling skid, contact your
local authority to enquire what the possibilities are for
recycling or processing. The ComfoCool Q600 contains
coolant R134a. It is essential that the coolant is disposed
of in an environmentally friendly manner. If not disposed
of properly, the contribution to greenhouse gas emissions
of the volume of coolant in this system equals 700kg
CO .
2