Connection Of The Domestic Hot Water Charging Package (Hwexe); Connection Of Domestic Hot Water Mixing Valve (Hwex); Control Of Electric Heaters In The Accumulator / Sequence Controlled Additional Heating - Gebwell GEMINI 40 Installation, Operation And Maintenance Manual

domestic hot water production. Sensor B3 is placed in the sensor
pocket of the domestic hot water accumulator in accordance with
the HW diagram.
Connection, connector h, BX8/M
HEATING CIRCUIT FLOW SENSOR B1
Mixing heating circuit flow sensor B1 is the control sensor of the
heating network. Sensor B1 is placed on the heating circuit out-
put line at a distance of approx. 1 m from the 3-way mixing
valve.
Connection, connector p, BX11/M
HEATING CIRCUIT FLOW SENSOR B12
Mixing heating circuit flow sensor B12 is the control sensor of
the heating network. Sensor B12 is placed on the heating circuit
output line at a distance of approx. 1 m from the 3-way mixing
valve.
Connection: Controller 2, connector p, BX11/M
If the first heating circuit (Heating circuit 1) of the heating sys-
tem is a pump heating circuit (i.e. not equipped with a 3-way
mixing valve), the flow sensor of Heating circuit 2 must be con-
nected to controller 1.
Connection: Controller 1, connector p, BX11/M
8.6 Connection of the domestic hot water
charging package (HWExE)
The domestic hot water charging package is connected to the
GW extension module (Domestic hot water). The domestic hot
water charging package requires a circuit for hot water circula-
tion. If the heating system is not equipped for such a circuit, the
jump wire (H21/M) is to be replaced by a domestic hot water
flow switch.
Domestic hot water flow sensor B38, BX21/M
Domestic hot water charge pump Q34 control (pwm), UX21/M
DOMESTIC HOT
WATER
Flow sensor
Power supply to domestic hot water charge pump 230VAC,
QX23 / N /PE
v1-6 29082018
WH
BR
BL
BR
GEBWELL HEAT PUMP
8.7 Connection of domestic hot water mix-
ing valve (HWEx)
The domestic hot water mixing valve is connected to the GW
extension module (Domestic hot water). The domestic hot water
mixing valve requires a circuit for hot water circulation. If the
heating system is not equipped for such a circuit, the jump wire
(H21/M) is to be replaced by a domestic hot water flow switch.
Domestic hot water flow sensor B38, BX21/M
EXTERNAL
DOMESTIC HOT WA-
TER
Flow sensor
Domestic hot water mixing valve Y33/Y34, QX21/QX22/N
GEBWELL HEAT PUMP
BR
BLU
WH
8.8 Control of electric heaters in the accu-
mulator / sequence controlled addi-
tional heating
The heat pump can be used for controlling electric heaters in the
accumulator or another sequence controlled heat source. There
are several different control modes for the electric heaters. The
electric heaters must be programmed site-specifically according
to the pertinent plant diagrams. For programming, see section
Site-specific definition / Programming of electric heaters.
EXTERNAL
BR
Y/GR
BL
DOMESTIC HOT WATER
CHARGE PUMP
Q34
Max 1.5A
GEBWELL HEAT PUMP
WH
BR
EXTERNAL
BR
BLU
DOMESTIC
WH
HOT
MIXING VALVE
WATER
21