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8.11 Domestic hot water's circulation pump
The domestic hot water's circulation pump can be connected to
the heat pump's controller.
QX13
Domestic hot water's circulation pump
Connector V
Control 230VAC, max 0,7A
Y/WH
8.12 Connection of external source pump
Connect external source pump according to the instructions de-
livered with the pump. A separate power supply from the pump
control or group centre must be brougt to the external source
pump (Q8. The pump is to be equipped with an external safety
switch.
Connect alarm, s/s (start/stop) and 0-10V control according to
the circuit diagram to the heat pump's leading controller.
The source pump must be programmed in connection with
commissioning. Refer to section commissioning for instruc-
tions, or the quick guide delivered with the source pump.
8.13 Connection of room unit, QAA74
Room unit is connected to controllers BSB-bus on connector b.
QAA74 ROOM UNIT
8.14 Room sensor (acceossory) QAA55.
Room sensor is connceted to controller's bus. Connection in-
struction below
24
Y/WH
HEATING
CIRCUIT PUMP
MAX 0,7A
R
Y
BLU
ROOM
SENSOR
QAA55
EXTERNAL
8.15 Alarm forwarding
The possible heat pump alarms can be forwarded e.g. to building
automation or a modem. The alarm forwarding is connected to
the fault relay K10 on the control centre. Closing alarm infor-
mation (NO) is received from connectors 11/14 and opening
alarm information (NC) from connectors 11/12. Use a 2-pole ca-
ble with a cross-sectional area of 0,5mm
closing switch
8.16 Call for heating 0-10V
The heat pump can be controlled with an external call for heating
control. The 0-10V control message is used to give the heat
pump a set point, which is created to the heating reservoir with
the heat pump.
The function must be activated in the heat pump's Expert menu.
Function requires a GW-extensin module. Refer to section Site-
specific definition / Call for heating
H1 / M
Consumer's call VK2 10V
Connector e
Control message 0 – 10V
8.17 External prevention of activation
The heat pump can be given a prevention message for activation
with an external potential free switch. In this case, the compres-
sor and electrical heaters are locked. The heat pump will return
to normal functioning once the message has been removed. The
function can be used, for example, if there is a lot of simultane-
ous electrical load at the property. With this function, the activa-
tion of the heat pump can be prevented. Käynnistyksen esto tulee
tehdä kaikkiin säätimiin.
Y
BLU
GEBWELL HEAT PUMP
2
at the minimum.
EXTERNAL
Gebwell GEMINI
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Troubleshooting
