10.5 Alarm list
Alarm
Explanation
Do the following
Fan
Indicates error on either supply or
extract air fan.
The alarm is displayed in the control panel.
Check that quick connectors are connected for the
both fans.
Contact your installation company or place of
purchase.
EMT/Fr-
ost
Indicates triggered frost protection
(in case of installed water heating
battery) or triggered overheat
protection (in case of installed
electric re-heater battery).
A triggered frost protection alarm results in the
following:
• Both fans stop.
• Outdoor and exhaust air dampers closed.
• Water valve opens completely (10 V signal goes
out to the actuator).
The unit will restart once the water temperature
r5°C above the set frost protection
temperature.
A triggered over heat protection (EMT) gives an alarm
in the control panel.
Reset by pushing the reset button. See chapter 10.3.8.
If the problem continues contact your installation
company or place of purchase.
Rot
Indicates a rotor malfunction.
The alarm is displayed in the control panel.
• If the rotating heat exchanger has stopped. Check
the rotor belt. See chapter 10.6
• If the heat exchanger is still rotating, check that the
quick connector for the sensor is connected and
that there is an air gap of 5-10mm between the
sensor and the magnet.
Adjust the gap if necessary.
If the alarm persists, the rotor sensor may be faulty.
Contact your installation company or place of
purchase.
Pb Fail
Error in connection with relay
card for the electrical re-heater (if
installed and activated).
The overheat protection sensor,
automatic reset (ET2) may be
triggered due to high temperature.
The alarm is displayed in the control panel.
The heater will not be activated.
For triggered ET2, wait 10–15 min. If the error
remains, contact your installation company or place
of purchase.
Temp
Malfunction in one or more of the
temperature sensors.
The alarm is displayed in the control panel.
Contact your installation company or place of
purchase.
Filter
Time for filter change.
The alarm is displayed in the control panel.
Change filter according to the instructions in the User
Manual.
SAVE VTR 200/B
Installation and Service
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39
Systemair Sverige AB
