Requirements Regarding On-Site Connections - Viessmann Vitocal 222-G Installation And Service Instructions Manual

Preparing for installation

Requirements regarding on-site connections

600
500
62
300
387
Fig. 1
DHW
A
DHW circulation
B
Cold water
C
Primary circuit return (heat pump brine outlet)
D
1. Prepare the connections on the heating water and
the DHW side.
Flush the heating system.
Connection of hydraulic pipes
On-site connection:
■
Use straight pieces of pipe (standard delivery).
■ With the connection set primary circuit/secondary
circuit (accessories):
Use pipe bends from the connection set.
8
218
147
69
C D
230 V~
400 V~
B
to :
D G
A
/
D E
F
G
680
80
E F G
< 42 V
A
Primary circuit flow (heat pump brine inlet)
E
Secondary circuit flow (heating water)
F
Secondary circuit return (heating water)
G
2. Prepare the electrical connections.
Cable lengths:
■ Required cable length inside the appliance plus dis-
tance to wall:
2.0 m
Height of wall outlet:
■
1850 mm (see "Technical guides for heat pumps")