31
VMBME102
12.2
Display
The display of the control computer shows information about the heat pump’s operation, status and any alarms, in text form. The status,
indicated by symbols, is also shown in the lower section which shows the heat pump’s active process.
Operating mode
Appears with applicable heat pump operating status text.
Operating mode
Meaning
(OFF)
The installation is fully switched off.
⚠
Remember that if the operating mode OFF is to be used for long periods during
the winter, the water in the heating system in the installation must be drained,
otherwise there is a risk of frost damage.
AUTO
The heat pump and the auxiliary heater are automatically controlled by the control compu-
ter.
HEATPUMP
The control computer is controlled so that only the heat pump unit (compressor) is allowed
to operate.
ADD. HEAT
The control computer only permits the auxiliary heater to be in operation. This operating
mode can be used when a new installation is being used, when the brine system is not
ready for operation.
HOT WATER
In this mode the heat pump only produces hot water, no heat goes to the heating system.
Symbols
Displays the operating status of the heat pump using symbols.
Symbol
Meaning
HP
Indicates that the compressor is in operation. An “F” next to the symbol indicates that a flow
switch is installed.
LIGHTNING
Indicates that the auxiliary heater is in operation. Number of auxiliary power stages indicated
by digit.
HOUSE
Indicates that the 3-way valve position is for heat production for the house.
TAP
Indicates that the 3-way valve’s position is for hot water production.
VL
SYSTEM
Indicates the set system VL / D / VL+F / D+F (+F indicates that a flow switch is installed)
CLOCK
Indicates that tariff control is active.
TANK
Indicates the level of hot water in the water heater. During charging, the tank is filled and fill-
ing starts at the set start temperature. A lightning symbol by the symbol indicates peak heat-
ing charging (legionella function).
⃞
SQUARE
Either indicates that the operating pressure switch has deployed, or that the hot gas tempera-
ture has reached its maximum temperature.
DEFROST
Displayed if defrosting is active.
FAN
Displayed if the fan is active L=Low speed and H= High speed.
Text
Appears with applicable heat pump operating status text.
Message
Meaning
ROOM --°C
Shows the set ROOM value. Standard value: 20°C.
If the accessory room sensor is installed it shows the desired indoor temperature within
brackets and the actual temperature.
ERR PHASE SEQ.
Alarm that indicates that there is an incorrect phase sequence to the compressor. Only dis-
play and only the first 10 minutes.
HIGH RETURN
Alarm that indicates that the high return temperature prevents the compressor’s operation.
START
Indicates that there is a demand for heating production and that no start delay is active.
EVU STOP
Indicates that the additional function EVU is active. This means that the heat pump is off as
long as EVU is active.
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