Viessmann Vitocal 300-G BW, Installation And Service Instructions Manual

Page: 51 / 216

51
Required devices
Pos.
Description
1 DHW cylinder
2 Electric immersion heater EHE (accessory)
■ Must be installed below the upper cylinder temperature sensor
4
■ Not required if an instantaneous heating water heater is installed
■ Only connect if the external heat source is not used for DHW heating
■ On-site connection
3 DHW circulation pump (max. 50 W)
4 Cylinder temperature sensor, top
5 Cylinder temperature sensor, bottom (option)
6 Circulation pump for cylinder heating (max. 130 W, already installed and
connected for type BWC/WWC)
LP1 LP2
x7.11
ZP
3
x2.N
?
x1.
M
1~
x8.13
x2.N
L1 L2 L3 N
2
x7.10
x2.N
?
x1.
M
1~
UP
6
4
STS
LP3
?
x1.13
x2.13
x1.14
x2.14
F7 Pt 500
F6 Pt 500
STS
5
LP PCB (see page 61)
Preparing for installation
DHW heating 1
(cont.)
5368 522 UAE
Installation