Viessmann Vitocal 300-G Installation And Service Instructions Manual page 35

DHW heating
(cont.)
Required equipment
Pos. Description
6
Secondary pump
7 Circulation pump for cylinder heating
eP DHW cylinder
eW
Cylinder temperature sensor
eE Cylinder primary pump (DHW side)
eR Plate heat exchanger
eT
Flow limiter
eZ Motorised two-way valve, normally closed
eU DHW circulation pump
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.
2
212.3
X1.
X2.N
211.4
X1.
X2.N
F6
Preparing for installation
50 W
M
37
ZP
1~
97
130 W
L
M
UPSB
1~
N
130 W
M
UP 33
1~
M
36
1~
PT500
STS 32
7
35