SystemAir SAVE VTR 150/B R 1000W User Manual page 25

20
| Alarms
8 Alarms
Press HELP button on the active alarm to access FAQ and troubleshooting (if available). Press ACKNOWLEDGE on the in-
dividual alarm to clear it. Depending on alarm type and the cause, it might be necessary to do a troubleshooting first to
acknowledge active alarm.
It may be not possible to clear the status of alarm if the cause of alarm is still present, as that would immediately trigger
alarm to return.
8.1 Alarm list
Alarm name
Frost protection
Frost protection temperature
sensor
Defrosting error
Supply air fan rpm
Extract air fan rpm
Supply air fan control error
Extract air fan control error
Fire alarm
Explanation
Frost protection of return water in
heating coil.
• Alarm stops the unit and opens
the water valve completely.
Indicates malfunction of water
heater temperature sensor.
• Alarm stops the unit.
Indicates failure of pre-heater to
preheat the incoming outdoor air (in
case Extra controller is configured as
Preheater).
• Alarm stops the unit.
Rotation speed of the supply air fan
is lower than minimum required. Fan
malfunction.
• Alarm stops the unit.
Rotation speed of the extract air fan
is lower than minimum required. Fan
malfunction.
• Alarm stops the unit.
Flow or pressure alarm for supply air.
The pressure is bellow pressure limit.
• Alarm stops the unit.
Flow or pressure alarm for extract
air. The pressure is bellow pressure
limit.
• Alarm stops the unit.
Fire alarm is active.
• Alarm stops the unit.
Do the following
The alarm will reset once the water
temperature reaches 13°C.
Check the water fluid temperature in
heating coil.
Check the circulation pump of water
heater. Contact your installation
company or place of purchase.
Check that frost protection
temperature sensor is connected
properly and cable is not damaged.
Contact your installation company or
place of purchase.
Check the pre-heater reset button.
Check the pre-heater cabling.
Contact your installation company or
place of purchase.
Defrosting error may be caused by
extremely low outdoor air
temperatures or pre-heater failure.
Check quick connectors of the fan.
Contact your installation company or
place of purchase.
Check quick connectors of the fan.
Contact your installation company or
place of purchase.
Check that air tube for pressure
sensor is connected properly and
cable is not damaged.
Contact your installation company or
place of purchase.
Check that air tube for pressure
sensor is connected properly and
cable is not damaged.
Contact your installation company or
place of purchase.
Once the external Fire alarm is
disabled – alarm has to be
acknowledged and unit restarted.
GB
212025 | A003