Alarm List; Compact - nilan Compact P User Manual

Alarm list

Compact

Alarm list
The following list applies to Compact ventilation units with the CTS602 control. The events are divided into the following categories:
Warning
Alarm
ID Type Display text
1 Hardware error
2 Alarm timeout
3 Fire alarm
activated
4 Pressure switch
6 Error in de-icing the
heat pump
10 Overheating of elec-
trical
after-heating
11 Low flow over the
electrical heating
element
13 High temperature
electricity supple-
mentary heating
HW.
Operation continues, but an incident has occurred that should be kept in mind.
Operation is partially or completely stopped as it is a critical fault that needs immediate attention.
Description / cause
Error in the hardware of the control sys-
tem.
A warning alarm has become a critical
alarm.
The ventilation unit is stopped due to the
fire thermostat being activated.
The high-pressure switch in the refrigera-
tion circuit has been triggered, possibly due
to:
• Extremely warm outdoor air supply
• Clogged filter
• Broken fan
The de-icing time has been exceeded.
The exchanger or the heat pump has failed
to de-ice within the maximum time.
This may be due to the unit being exposed
to very low outdoor temperatures.
The electrical heating element has over-
heated. Lack of airflow due to, for instance,
blocked filters, blocked air intake or defect
supply air fan.
Lack of airflow in supply air.
The temperature for the electricity supple-
ment in the hot water tank has been too
high.
Troubleshooting
Note alarm and reset it.
If the alarm does not disappear contact
service.
Note alarm and reset it.
If the alarm does not disappear contact
service.
If there is no fire, check the connection to
the fire thermostat.
If okay, contact service.
Check for faults and reset the alarm.
Contact service if you cannot reset the
alarm or if alarms often occur.
Contact service if resetting the alarm does
not help.
Register the current operating tempera-
tures from the Show data menu in order to
ease the service process.
Make sure that air is blown into the house.
Make sure the filters are clean.
Check that the outdoor air intakes is not
blocked.
Reset alarm.
Contact service if the above does not solve
the problem.
See alarm code 10.
The over-heating fuse located behind the
lower door is to be re-engaged. In case of
repeated alarms contact service.
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