SystemAir SAVE VTR 150/B Service & Accessories Installation Manual page 14

10
| Configuration
Alarm name
Defrosting error
Supply air fan rpm
Extract air fan rpm
Supply air fan control error
Extract air fan control error
Fire alarm
Low supply air temperature
B class alarms:
Emergency thermostat
Bypass damper feedback
Explanation
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.
Supply air temperature is too low.
Active: (Outdoor air temperature
sensor measures < 0°C) AND (Supply
air temperature sensor measures <
5°C)
Returned: (Supply air temperature
sensor measures > 10°C)
Indicates triggered overheat
protection (in case of installed
electric re-heater battery).
Indicates malfunction in bypass
damper.
Do the following
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.
Check the heat exchanger and re-
heater.
A triggered manual or automatic
overheat protection (EMT) gives an
alarm in the control panel.
In case a manual overheat protection
is triggered, reset it by pushing the
reset button.
If the automatic overheat protection
is triggered, it will reset
automatically once the temperature
has dropped.
If the problem continues contact
your installation company or place of
purchase.
Disconnect the main power supply
for 10 seconds to reset the control
function.
Power up the unit, an automatic
bypass damper test will be
performed.
If the alarm occurs again after
approximately 3 minutes – contact
your installation company or place of
purchase.
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