10
The alarm will read OFF when the error has been corrected
or the filter is changed and reset.
Alarm
Status Error at ”ON”
Control
stopped
ON/
OFF
Filter not changed after 14 days/
Frost protection error/The system
is equipped with an external switch
between terminals 28 and 29.
“Alarm” will be displayed when
these are short-circuited and the
system has stopped.
Change
filter
ON/
OFF
The filters should be changed.
Frost
protection
ON/
OFF
The temperature of the water after
heater is too low (frost danger).
Com error ON/
OFF
The control panel cannot
communicate with the main board
between display and printed circuit
board).
Hour counters (2 pages)
Press “Arrow down” again to display the hour counters,
which count from the day the system is put into operation.
The figures shown should be multiplied by 10. This shows
how many hours the system has been running, how many
hours the system has run at the various speeds and how
many hours the relays have been connected (ON).
Total tid
Level
0
Level
1
Level
2
Level
3
Level
4
Relay 2 Reheating
Relay 3 Preheating
Relay 8 System in operation
Relay 9 Help function
Press “Exit” to return to the main menu.
5.8 Service menu
Use this function to configure the following sub-menu
items.
10 - Level 1 Supply air
Level 1, which is the lowest speed, is usually used when
there is nobody home. Both fans can be configured
independently of each other for all levels so that the air
flow in the supply air and in the extract air is equal, which
provides optimal operation.
The adjustment of the system must be performed with
specialised air measurement equipment and can be
performed without the use of the main regulating damper.
It is not recommended to configure the air flows without
expert advice. Incorrect configuration can lead to major
energy consumption or unpleasant indoor climate.
Setting option: between 0 and 100 %.
11 - Level 2 Supply air
Level 2 is the recommended speed of the system in order
to provide the optimal indoor climate and it should be
adjusted to the ventilation requirement of the dwelling.
Setting option: between 0 and 100 %.
12 - Levels 3 and 4 Supply air
Level 3 is the highest speed that can be configured. It is
used e.g. if there are many guests or there is a lot of
activity in the kitchen.
Setting option of level 3: between 0 and 100 %.
Factory setting of level 3: 75 %.
Level 4 is used mainly in summer to lower the indoor
temperature. Remember that a higher air exchange rate
increases the energy consumption.
Setting option of level 4: cannot be configured.
13 - Level 1 Extract air
The fan speed is adjusted until the same air flow is
achieved as the supply air on level 1.
Setting option: between 0 and 100 %.
14 - Level 2 Extract air
The fan speed is adjusted until the same air flow is
achieved as the supply air on level 2.
Setting option: between 0 and 100 %.
15 - Levels 3 and 4 Extract air
The air flow of level 3 is adjusted to the same air flow as
the supply air on levels 3 and 4 (item 12).
Setting option of level 3: between 0 and 100 %.
Factory setting of level 3: 75 %.
Setting option of level 4: cannot be configured.
16 - Fine tuning (T2)
It is possible to fine tune the room sensor of the control
panel so the correct current room temperature is
displayed.
Setting option: between -5 and 0 °C.
