Power Supply For Accessories (230 V ~) - Viessmann Vitovalor PT2 Installation And Service Instructions For Contractors

Electrical connections
Connecting the DHW circulation pump (accessories or on site)
M
A
1~
B
Fig. 41
DHW circulation pump
A
Plug on the M2IO electronics module
B sK

Power supply for accessories (230 V ~)

When positioned in wet rooms, the mains connection
of accessories outside the wet area must not be car-
ried out on the device. If the boiler is installed outside
wet rooms, the accessory power supply can be con-
nected directly to the unit. This connection is switched
directly with the ON/OFF switch of the mains distribu-
tion box.
Power supply and PlusBus connection of accessories
Power supply of all accessories on the heat management unit gas condensing and fuel cell module
A
E
Fig. 42
Some accessories with direct power supply
A
E
Fig. 43
Gas condensing and fuel cell module
A
Cylinder module
B
Extension kit for heating circuit with mixer
C
D Extension kit for heating circuit with mixer
ON/OFF switch
E
(cont.)
B C
B C
Specification
Rated current
Recommended connecting
cable
If the total system current exceeds 6 A, connect one or
more extensions directly to the mains supply via an
ON/OFF switch (see next chapter).
D
D
Mains input
fÖ
A Power outlet
fÖ
jF PlusBus
/ Power outlet on heat management unit
lH aBH
Installation sequence
1 A
H05VV-F3G 0.75 mm 2
or
2
H05RN-F3G 0.75 mm
47