16
Note
Type BWC 351.A07 is illustrated. In this
case, the circulation pumps are fitted and
connected at the factory (primary pump
qT
, secondary pump
6
incl. check
valve, circulation pump for cylinder heat-
ing
7
incl. check valve, instantaneous
heating water heater
4
optional).
In type BW 351.A07, no circulation
pumps are fitted at the factory. For the
connection of primary pump
qT
, see
"Primary circuit, type BW 351.A07 +
BWS 351.A07" (page 20).
Required equipment
Pos.
Description
1
Heat pump
2
Heat pump control unit
qT
Primary pump
wP
Brine accessory pack
wQ
Pressure switch, primary circuit
wW
Brine distributor for geothermal probes/collectors
wU
Geothermal probes/collectors
Electrical installation scheme
For an overview of the electrical connec-
tions and more information on the PCBs,
see from page 76 and the separate
service instructions for the Vitotronic 200
heat pump control unit.
X1.
X3.8
X3.9
230 V / 50 Hz
230 V; 0.15 A
21
2
Preparing for installation
Primary circuit, type BW/BWC (brine/water)
(cont.)
5609 667 GB