Bosch WORCESTER GREENSTORE Instruction Manual download pdf (Page 22)

Connecting the heat pump to the power supply

Connecting the general alarm and external

input

General alarm

The general alarm is activated irrespective of which alarm has occurred.

When a general alarm is required on the heat pump, it is connected

according to the diagram opposite. The contact for the general alarm

output carries no current and it closes at a general alarm.

Connect max 24 V and 100 mA on the contact.

External input

The heat pump includes prepared functions to permit the heating to be

controlled externally. The input to the heat pump can be programmed

for different functions on the control unit. These Terminal functions are

available from menu 5.7 (Select external controls).

The input must be short circuited to activate the function. Note that the

contact must carry no current.

Softstart

The softstart reduces the compressors starting current.

The softstart wiring can be found on the electrical connection diagram

supplied in the heatpump

Terminal

board for

external

connections

Terminal

board for

external

connections

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Bosch WORCESTER GREENSTORE Instruction Manual Page 22