Dhw Heating - Viessmann VITOCAL 300-G PRO Installation And Service Instructions Manual

DHW heating

Type BW 301.A090 to BW 302.A250 and WW 301.A125 to
WW 302.A300
Hydraulic installation scheme
WW
37
32
X
30
KW
W
Heat pump interface
X Interface to the solar thermal sys-
tem or the external heat generator
Required equipment
Pos. Designation
eP DHW cylinder
eW Cylinder temperature sensor
eE Cylinder loading pump (DHW side, fail-safe)
eR Plate heat exchanger
eT Flow limiter
eZ Motorised 2-way valve, normally closed
36
35
W
33
34
Preparing for installation
KW Cold water
WW DHW
39