Primary Circuit: Water/Water, 1-Stage/2-Stage - Viessmann VITOCAL 300-G PRO Installation And Service Instructions Manual

Primary circuit: water/water, 1-stage/2-stage

Type WW 301.A125 to WW 302.A300
Hydraulic installation scheme
24
27
---------
26
Required equipment
Pos. Designation
1 Heat pump:
2
■ Integral heat pump control unit
■ Integral frost stat, primary circuit
■ Integral flow switch, well circuit
wR Dirt trap
wZ Well pump (suction pump for groundwater, fail-safe)
wU Delivery well
wI Return well
Electrical installation scheme
For a summary of electrical connections,
see from page 53 and separate "Con-
nection and wiring diagram".
P1
28
Preparing for installation
1
2
33