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DFM 1988
3.2 Electrical connection
ATTENTION!
Disconnect the power supply before opening the device.
Fig. 3.4:
Circuit diagram with electric supplementary heater control
Legend:
Ex*
Electric heater
F1
control fuse (230 V / 2.5 AT)
J1
plug N20
J3
terminal strip N20
J4.1 -
J4.2 plug N20
Kx*
contactor E9
N1* heat pump manager
N20 control PCB
R3.1 flow sensor VFS 5-100
R3.2 domestic hot water outlet sensor
X1
terminal strip 230 V / supply
X2
terminal strip: Request E9
*
to be provided on-site
----- to be connected on-site as required
All manuals and user guides at all-guides.com
452114.66.95 · FD 9801
ATTENTION!
The VFS flow sensor must be installed the right way round. This is the
case when the cable outlet of the sensor is on the outflow side of the
measuring tube.
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