Overview Of Plug-In Strip - Bosch GC7000WP 50 23 Installation And Maintenance Instructions Manual

7.3

Overview of plug-in strip

I1 BUS I3 T1
Fig. 23 Overview of plug-in strip
Symbol Function
On/Off temperature control (volt free) ▶ Connect an On/Off temperature control.
Modulation-controlled control unit and
EMS-BUS
BUS
2 1
External switching contact (volt free).
This connection is short-circuited as
standard.
outside temperature sensor
Storage cylinder temperature sensor
Temperature sensor of low loss header ▶ Connect the temperature sensor of a low loss header.
Function modules
Mains voltage
120/230 VAC
Circulating pump
PW2
Mains voltage
120/230 VAC
Cylinder primary pump
PW1
Fine-wire fuse of the burner control unit There is a replacement fuse under the cover flap on the burner control unit.
Table 7 Plug-in strip symbols
Condens 7000 WP – 6721841195 (2022/01)
TW1 T0
Description
Request for heat via volt-free contact, closed = on, open = off.
▶ Connect modulating temperature controller (EMS bus).
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.
▶ Connect the outside temperature sensor.
▶ Connect cylinder temperature sensor.
▶ Set the use of the low loss header in the service menu: Settings > Hydraulics > Low-loss
header.
▶ 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).
▶ 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.
If a DHW circulation line is used, a sanitary pump can be connected.
▶ Connect the 230 V power supply for the sanitary pump.
Mains plug 230 V
▶ Connect the mains plug, if not pre-assembled ( § 7.8, p. 21).
▶ Connect the cylinder pump.
-or-
▶ Connect the 3-way valve according to the instructions ( § 7.6, p. 21).
120/230 VAC PW2
AC
Electrical connection
120/230 VAC PW1
0010034531-001
19