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3
Preheater
setpoints
If afterheating is connected, the icon will appear on the display when the heater is on.
Furthermore the setpoints for preheat can be seen/changed in the installer menu.
The setpoint for electric afterheating is adjusted as described below.
(If GTC (geothermal collector) is connected, it will be permanently set to heat if the out-
side temperature (T1) < 0ºC).
Step
Action
1
Press the RIGHT button for 10 sec., until the installer menu is activated (the
icon for the ventilation unit is flashing)
2
Press the RIGHT button till the preheater icon in the outdoor air duct (T1)
flashes slowly.
3
Press the CENTER button and the preheater icon flashes quickly together
with the previously preheater setpoint (T1/SET PH).
4
Press UP/DOWN to change the preheater setpoint and confirm by pressing
CENTER. If the setpoint is “OF” the preheating will always be switched off.
5
Press RIGHT for 10 sec. until the installer menu is closed. (the icon for the
ventilation unit stops flashing)
(preheater icon)
UNIT IN HEAT RECOVERY MODE
(T1/SET PH)
Ventilation unit icon
