•
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, cooling 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.
Table 1. Symbols shown in the display.
Symbol Meaning
COMPRESSOR Indicates that the compressor is in operation.
LIGHTNING Indicates that the auxiliary heater is in operation. The
number indicates what additional 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. A lightning
symbol by the symbol indicates peak heating charg-
ing (anti-legionella function).
SQUARE Either indicates that the operating pressure switch has
deployed, or that the pressure pipe temperature has
reached its maximum temperature.
DEFROST Displayed when defrosting is active.
User manual VUGFB102 – 13
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