Gebwell GEMINI 40, Installation, Operation And Maintenance Manual

Page: 23 / 74

v1-6 29082018 23
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
8.12 Connection of external source pump
Connect external source pump according to the instructions de-
livered with the pump.
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.
Set the pump to a standard curve/fixed speed so that the device-
specific flows can be adjusted to the correct values.
See adjustment instructions in the manual delivered with the
pump.
8.13 Connection of room unit, QAA74
Room unit is connected to controllers BSB-bus on connector b.
8.14 Room sensor (acceossory) QAA55.
Room sensor is connceted to controller’s bus. Connection in-
struction below
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
2
at the minimum.
8.16 Call for heating 0-10V
The heat pump can be controlled by using an external heat re-
quest. A 0–10 V regulation message can be used to set a set point
for the output of the heat pump into the heating system. In that
case, the heat pump is slaved to the upper-level automation
The function should be activated on the heat pump’s menu.
If the heat pump is equipped with energy meters, the function
requires a GW expansion module.
Refer to section Site-specific definition / Call for heating
H3 / M Consumer’s call VK2 10V
Connector e Control message 0 – 10V
8.17 External prevention of activation / re-
lease signal
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
HEATING
CIRCUIT PUMP
MAX 0,7A
QAA74 ROOM UNIT
GEBWELL HEAT PUMP
EXTERNAL
ROOM
SENSOR
QAA55
EXTERNAL
closing switch
Y/GR
Y/GR
Y
BLU
R
Y
BL
U
R BLU Y