10
Note
Type BWC is illustrated. In this case, the
circulation pumps are fitted and connec-
ted at the factory (primary pump
qT
, sec-
ondary pump
6
, circulation pump for
cylinder heating
7
, instantaneous heat-
ing water heater
4
optional).
In the case of type BW, no circulation
pumps are factory-fitted. For the connec-
tion, see "Electrical installation
scheme".
Equipment required
Pos.
Designation
1
Heat pump
2
Heat pump control unit
qT
Primary pump
qO
Frost stat, primary circuit
wP
Brine accessory pack
wQ
Pressure switch, primary circuit
wW
Separating heat exchanger, primary circuit
wE
Flow switch, well circuit (remove jumper when connecting)
wR
Dirt trap
wZ
Well pump (suction pump for groundwater; connect via on-site contactor
with fuse protection)
■ 230 V connection: See page 11.
■ 400 V connection: See page 11.
wU
Delivery well
wI
Return well
Electrical installation scheme
For an overview of the electrical connec-
tions and more information on the PCBs,
see from page 36 and the separate
service instructions for the
"Vitotronic 200" heat pump control unit.
Preparing for installation
Primary circuit, type BW, BWC
(cont.)
5546 273 GB
