Komfovent VERSO-P, Инструкция по установке и обслуживанию

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V2-C5-15-03-v1
Message Possible cause Elimination
External fire alarm
A fire signal has been received from the fire
signalization system of the building.
Delete alarm message and restart the unit when
the fire signal disappears.
External stop
A signal from an external device (switch,
timer, or sensor) has been received.
As soon as the auxiliary device is switched off, the
unit will operate in the previous mode.
Heat exchanger failure
Blocked or not rotating rotor, by-pass
damper failure.
Check the rotor drive, replace the belt or check the
by-pass channel operation.
Heat exchanger icing
Icing may form under a low outdoor tem-
perature and high room humidity.
Check the operation of the rotation heat
exchanger drive or the air bypass damper of the
plate heat exchanger.
Low supply air temperature
The heating equipment fails to operate or
its capacity is insufficient.
Check the heating equipment.
High supply air
temperature
The heating equipment is not controllable
(mixing valve or contactor is blocked).
Check the heating equipment.
Electric heater overheat
The emergency overheating protection of
the electrical heater has actuated.
Protection can be reset only by pressing the RE-
SET press-button on the heater.
Evaporator air temperature
sensor failure
The evaporator air temperature sensor is
not connected or broken.
Check connections of the sensor or replace the
sensor.
Evaporator icing
The evaporator is iced over due to exces-
sively high humidity content in the exhaust
air and low outdoor temperatures.
Check the operation of the evaporator defrost sys-
tem (see Troubleshooting of heat pump, p. 62).
High pressure on
compressor
Compressor system operated in an overload
mode as a result of too high temperature in
the condensing unit.
Indentify the cause and eliminate it ( see Trouble-
shooting of heat pump, p. 62 ).
Low pressure on
compressor
Compressor system is leaky or the
amount of refrigerant is insufficient.
Indentify the cause and eliminate it ( see Trouble-
shooting of heat pump, p. 62 ).
Compressor failure
No power supply.
Check supply voltage on the circuit breaker and/or
make sure whether it is on.
Supply voltage mismatches.
Check that the supply voltage is on all three phases,
if necessary, swap the two phase conductor posi-
tions.
Compressor motor failure.
Check the compressor motor and replace it if nec-
essary.
Compressor drive failure.
Check the operation of the compressor drive and
replace it if necessary.
Supply fan drive failure
A fault signal has been received from the
supply fan drive.
Check the supply fan drive and its messages.
Supply fan drive overload The supply fan drive is overloaded.
Check the condition of the supply fan drive and its
cooling.
Supply fan motor failure The supply fan is broken. Check the supply fan and replace it if necessary.
Supply fan motor overload The supply fan is overloaded.
Check the condition of the supply fan and make sure
that the resistance of the ventilation system is not
exceeded.
Exhaust fan drive failure
A fault signal has been received from ex-
haust fan drive.
Check the exhaust fan drive and its messages.
Exhaust fan drive overload The exhaust fan drive is overloaded.
Check the condition of the exhaust fan drive and
its cooling.
Exhaust fan motor failure The exhaust fan is broken.
Check the exhaust fan and replace it if
necessary.
Exhaust fan motor overload The exhaust fan is overloaded.
Check the condition of the exhaust fan and make
sure that the resistance of the ventilation system is
not exceeded.
Rotor drive failure
A fault signal has been received from the
rotor drive.
Check the rotor drive and its messages.
Rotor drive overload The rotor drive is overloaded.
Check the condition of the rotor drive and its cool-
ing.
Rotor motor failure The rotor motor is broken. Check the rotor motor and replace it if necessary.