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Electrical connection
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Condens 7000 WP – 6721841195 (2022/01)
7.3 Overview of plug-in strip
Fig. 23 Overview of plug-in strip
Table 7 Plug-in strip symbols
Symbol Function Description
On/Off temperature control (volt free) Connect an On/Off temperature control.
Request for heat via volt-free contact, closed = on, open = off.
Modulation-controlled control unit and
EMS-BUS
Connect modulating temperature controller (EMS bus).
External switching contact (volt free).
This connection is short-circuited as
standard.
If it is necessary to connect several safety components, e.g. a condensate pump and a
thermal cut out for the underfloor heating system, they must be connected in series. If a
break occurs due to one of the safety components, the heating load to the boiler is
interrupted.
Remove short circuit.
Connect safety components (in series).
Attention! 230 V components must only be connected via a relay.
outside temperature sensor Connect the outside temperature sensor.
Storage cylinder temperature sensor Connect cylinder temperature sensor.
Temperature sensor of low loss header Connect the temperature sensor of a low loss header.
Set the use of the low loss header in the service menu: Settings > Hydraulics > Low-loss
header.
Function modules Connect the Bus cable of the function module.
If installed in the boiler, install the function module as described in the instructions ( §
7.7, p. 21).
Mains voltage Connect the 230 V power supply for the function module.
-or-
Connect the 3-way valve according to the instructions ( § 7.6, p. 21).
Attention! The total power consumption of the connected components must not exceed
725 W.
Circulating pump If a DHW circulation line is used, a sanitary pump can be connected.
Connect the 230 V power supply for the sanitary pump.
Mains voltage Mains plug 230 VAC
Connect the mains plug, if not pre-assembled ( § 7.8, p. 21).
Cylinder primary pump Connect the cylinder pump.
-or-
Connect the 3-way valve according to the instructions ( § 7.6, p. 21).
Fine-wire fuse of the burner control unit There is a replacement fuse under the cover flap on the burner control unit.
0010034531-001
120/230 VAC PW1
PW2
120/230 VAC
I1 I3 T1
BUS
BUS
TW1 T0
BUS
21
BUS
120/230 VAC
PW2
PW1
19


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