Viessmann Vitocal 300-G Installation And Service Instructions Manual page 17

Primary circuit, type WW 301.A, WWC 301.A...
Equipment required
Pos. Description
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 limiter, 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 18
■ 400 V connection: See page 18
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 72 and the separate
service instructions, Vitotronic 200 heat
pump control unit.
Preparing for installation
(cont.)
17