4.2 Indicator
The indicator at the bottom of the control panel has three modes:
▪
Not lit, means that the heat pump is not powered.
▪
When the green light shines continuously, the heat pump has power and is ready to produce heat, cool-
ing or hot water.
▪
Flashing green, means an active alarm.
4.3 Display
The display shows information about the heat pump’s operation, status and any alarms.
Sym-
bol
Meaning Description
COMPRESSOR Indicates that the compressor is in operation.
LIGHTNING Indicates that the auxiliary heater is in operation. The number indicates what ad-
ditional step is activated.
HOUSE Indicates that the heat pump produces heat for the heating system.
TAP Indicates that the heat pump produces heat for the water heater.
F FLOW SENSOR Indicates that the flow sensor is active (there is flow).
CLOCK Indicates that tariff control is active.
TANK Indicates the level of hot water in the water heater. When hot water is produced
for the water heater, this is indicated by a flashing icon for the tank.
TANK and
LIGHTNING
A lightning symbol by the tank symbol indicates peak heating charging (anti-le-
gionella function).
DEFROST Displayed when defrosting is active.
FAN Displayed when the fan is active.
COOLING Displayed if cooling is activated and in cooling season.
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 de-
sired 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.
User Guide iTec
VUJSI102 Thermia Värmepumpar
14
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