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Control unit
6 720 643 415
(2010/03)
7
4
Control unit
The control unit controls and monitors the heating and
hot water production with the heat pump and additional
heat. The monitoring function shuts down the heat
pump in the event of operational disturbances so as to
prevent damage to critical parts of the pump.
4.1
Additional heat
The heat pump can be dimensioned to cover the peak
output of the house single-handedly and does not
normally need any additional heat then. Although in that
case there can be an additional heater installed solely
for emergency operation, when the heat pump is
stationary.
The heat pump can also be dimensioned to cover the
needs of the house to a somewhat lower degree and
then will need additional heat for the time of the year
when it is coldest. The additional heat also helps in the
event of emergency operation, extra hot water and hot
water peak.
The additional heat is provided through electric
additional heat.
The control unit activates automatically the additional
heat, if necessary.
4.2
Hot water production
Hot water is heated in the hot water heater and the
control unit gives priority to hot water before the heating
of heating water according to the settings that are made.
The hot water heater is fitted with a sensor that senses
the temperature of the hot water.