Connections On The Heating Water And Dhw Side; Connection On The Dhw Side; Condensate Connection - Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Installing the boiler

Connections on the heating water and DHW side

A B
E
D
C
B
A
Fig. 7 Shown with connection sets for finished walls
(accessories)
A Heating flow R
¾
DHW R
B ½
DHW circulation R
C ½

Connection on the DHW side

The DHW expansion vessel, available as an acces-
sory, is installed in the cold water supply inside the
boiler.

Condensate connection

L
M
Fig. 8
14
C D E
(separate accessories)
A
B
C
D
E
D Cold water R
½
Heating return R
E ¾
Separate installation instructions
1. Route condensate hose
wall ) or to side aperture
G
Note
Pull the condensate hose far enough out of the
boiler so that no unnecessary bends are created
inside the boiler.
2. Route condensate hose
nect with a constant fall and a pipe vent to the pub-
lic sewage system or to a neutralising system.
If necessary, connect to an on-site trap. Ensure
this connection is secure.
Note
Do not connect the DHW cylinder safety valve to
hose . Do not change the position of hose
L
(used for ventilation).
M to the back (drain in
(see page 9).
H
as a U-bend and con-
M
L