Symbol Meaning
FAN Displayed when the fan is active.
COOLING Displayed if cooling is produced.
A = Active cooling.
The following operating information may also appear:
Message Meaning
ROOM Shows the set ROOM value. Standard value: 20°C.
If the accessory room sensor is installed it shows the
actual temperature and the desired indoor temperature
is shown within brackets.
START Indicates that there is a need for heat production or hot
water and that the heat pump will start.
EVU STOP Indicates that the additional function EVU is active. EVU
is used to switch off the heat pump during high energy
tariffs.
NO HEAT DEMAND Indicates that there is no heating or hot water produc-
tion demand.
NO COOLING
DEMAND
Indicates that there is no cooling demand.
COMPRESSOR START
--XX
Indicates that there is a need for heat, hot water or cool-
ing and that the heat pump will start in XX minutes.
COMPRESSOR
+IMM.HEAT
Indicates that heat production is active with both com-
pressor and auxiliary heater.
START_MIN Indicates that there is a demand for heating or hot
water production but that a start delay is active.
AUX. HEATER Indicates that there is an auxiliary heater demand.
ACT COOLING Displayed if cooling is active.
DEFROST X(Y) Displayed when defrosting is active. X shows the actual
reached temperature. Y shows at what temperature
defrost is complete.
14 – User manual VUGFB102
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