5 Settings and adjustments
The installer carries out the basic settings of the heat pump at installation. A number of settings and adjust-
ments that you can carry out yourself are described below.
Before changing the control computer’s set-
tings, first find out what these changes mean.
Make a note of the default setting.
5.1 Setting operating mode
1. Open the menu OPERAT. in the INFORMATION menu. The asterisk
shows the current selection
2. Mark new mode using + or – button.
3. Press the right button once to confirm the choice.
4. Press the left button twice.
The following operating modes can be selected:
Operating mode
Meaning
(OFF)
The installation is fully switched off. This mode is also used to acknowledge certain alarms.
AUTO The heat pump automatically controls the compressor operation and auxiliary heater.
COMPRESSOR The control system is controlled so that only the outdoor unit (compressor) is allowed to
operate. In this operating mode peak heating charging (anti-legionella function) of the hot
water will not run because the auxiliary heater is not used.
AUX. HEATER The control system only permits the auxiliary heater to be in operation.
HOT WATER In this mode the heat pump only produces hot water, no heat goes to the heating system.
Warning If the operating mode OFF or HOT WATER is to
be used for long periods during the winter,
the water in the heating system must be
drained, otherwise there is a risk of frost dam-
age. Alternatively a system solution with an in-
termediate exchanger should be used.
User Guide iTec
VUJSI102 Thermia Värmepumpar
16
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