Bosch WORCESTER GREENSTORE Instruction Manual download pdf (Page 21)

External connections to the heat pump

The external connections must be made for the heat pump:

Power supply 1-phase:

The power supply is connected to terminals L, N, and Earth.

Mixing valve on the heating circuit:

If a second heat curve with a mixing valve is to be used, the mixing valve is connected to

terminal block SV1.

External main pump in the heating system G1 (P1):

The external main pump must be connected to the terminal block if a bypass is required. The

pump is connected to terminal P1.

Return sensor 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):

Is connected if the heat pump is to produce hot water. Ensure this is connected to terminal

GT3 X on the terminal block.

Mixing valve sensor T4 (GT4):

Is connected when a mixing valve for a second heat curve is to be used. Connect to terminal

GT4.

Room sensor T5 (GT5):

Is connected if room sensor inﬂ uence is required.

Mixing

valve

G1 (P1)

Terminal board

230 V

Return sensor

Outdoor sensor

Hot water

Mixing valve

Room sensor

Terminal board

for external

connections

Connecting the heat pump to the power supply

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Bosch WORCESTER GREENSTORE Instruction Manual Page 21