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Manufacturer reserves the right to alter specifications
Alarmlist
No action may be carried out before the unit stopped, and the power is off!
Any error that is indicated to be checked and fixed!
LEDs for alarm and Operation flashes in different ways depending on which alarm has been triggered.
Numeric display indicates the alarm code.
The alarm is reset by pressing and holding the Comfort panel fan c and - buttons for about 5 seconds.
Filter alarm is reset by pressing and holding the Comfort panel temperature c and - buttons for about 5 seconds.
Alarm
nr.
Content
Indication on
led
The service technician:
See the service manual how to fix the alarms.
1
Emergency stop triggred
Alarm: Shines
Drift: Off
All functions are stopped without delay. Check the electric bat-
tery when no cooling is done. Check reason to stop!
2
Internal fire alarm
Alarm: Shines
Drift: Off
Check the unit’s internal components. The alarm stops the unit
in case of fire in the property, not to spread the smoke / fire.
3
Anti freeze protection (Out < +7°C)
Alarm: Shines
Drift: Off
Check water temp to the coil and/or heat recovery
3
Anti freeze protection (Out > +7°C)
Alarm: Flashes
Drift: Shines
Check water temp to the coil and/or heat recovery
4
Rotation guard triggred (Out <+5°C)
Alarm: Shines
Drift: Off
Check that the rotor spins easily, drive belt, rotor guard
indication and cabling.
4
Rotation guard triggred (Out >+5°C)
Alarm: Flashes
Drift: Shines
Check that the rotor spins easily, drive belt, rotor guard
indication and cabling
5
Anti freeze protection guard defective Alarm: Shines
Drift: Off
Check connection or replace the sensor.
6
Temperature sensor defective
Alarm: Shines
Drift: Off
Check connection or replace the sensor.
7
Eletrical heater triggred
Alarm: Shines
Drift: Off
Thermal protection is activated, investigate the reason!
8
Exhaust temperature under setpoint
Alarm: Shines
Drift: Off
Check exhaust temperature, m15°C and/or airflow.
Check DIP-switch 4 so correct Fan (1/2) are chosen for supply
8
Exhaust temperature under setpoint
Alarm: Flashes
Drift: Shines
Check exhaust temperature, m15°C and/or airflow.
Check DIP-switch 4 so correct Fan (1/2) are chosen for supply
9
Supply temperature under setpoint
Alarm: Shines
Drift: Off
Check heater and recovery funktion
9
Supply air temperature deviates from
the setpoint
Alarm: Flashes
Drift: Shines
Check the recovery function and and coils.
10
Supply airflow below setpoint
Alarm: Shines
Drift: Off
Check the supply fan operation.
Check the supply air duct system.
11
Exhaust airflow below setpoint
Alarm: Shines
Drift: Off
Check the exhaust fan function.
Check the exhaust air duct system.
12
Supply/exhaust filter clogged
Alarm: Shines
Drift: Off
Unit stops when filter are clogged
12
Supply/exhaust filter clogged
Alarm: Flashes
Drift: Shines
Filter Alarms - the unit stops in a month if no filter is changed.
12
Supply/exhaust filter clogged
Alarm: Off
Drift: Shines
Indicates that the filter should be changed.
13
External stop
Alarm: Shines
Drift: Off
External stop function activated
