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Connecting the heat pump to the power supply
External connections on the heat pump - operating mode B
Power supply: Connect to terminals L1, L2, L3, N and PE. An alarm
triggers if phases are connected incorrectly.
Three-way valve: Connected if the heat pump is to produce hot water.
Connect to terminals 11, 12 and 13.
Mixing valve for oil-fired boiler: When a mixing valve is required for
the electric/oil-fired boiler then it is connected to terminal SV1.
P1, external main pump in the heating system: Must always be
connected. Connect to terminal P1.
P2, heat carrier pump: Must always be connected. Connect to
terminal P2.
Return sensor radiator T1 (GT1): Must always be connected.
Connect to terminal GT1.
Outdoor sensor T2 (GT2): Must always be connected. Connect to
terminal GT2.
Hot water sensor T3 (GT3): Connected if the heat pump is to
produce hot water. Connect to terminal GT3 X.
Room sensor T5 (GT5): Connected if room sensor influence is
required. Connect to terminal block GT5 on the terminal card. The
alarm lamp in the room sensor is connected to the terminal block
ALARM LED.
Connection of mixed additional heat - operating
mode B
When the additional heat is an electric/oil-fi red boiler with a mixing
valve the wiring to the operating circuit is connected to terminals N and
L on contact T1 via a help relay HR. The heat pump stops automatically
at outdoor temperatures below -10ºC and cannot then produce hot water.
Both the T1 and T2 outputs are activated instead. T1 starts the electric/oil-
fi red boiler and T2 makes the contact CK for a possible hot water heater.
Cut the cable to the oil-fi red
boiler/electric boiler and
connect to relay terminals
11 and 14.
52
Terminal card
Alarm lamp, room
sensor
Terminal card 230V
230V at -10°C):
Electric element
in WH
NOTE! HR is not included in
the delivery.
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