Viessmann VITODENS 222-F Installation And Service Instructions Manual page 9

Preparing for installation
Safety assembly to DIN 1988
A Safety assembly to DIN 1988
(accessory to connection sets for
unfinished walls)
B Safety valve
C Visible discharge pipe outlet point
D Shut-off valve
E Flow regulating valve (installation
recommended)
F Pressure gauge connection
(cont.)
3. Route condensate hose M to the
back (drain in wall G) or to the side
aperture H (see page 6).
Route condensate hose with a U-
bend and connect with a fall to on-site
drain line or siphon.
4. Prepare the gas connection accord-
ing to TRGI or TRF or all local regu-
lations.
5. Prepare the electrical connections.
■ Power cable: NYM-J 3 x 1.5 mm
fuse max. 16 A, 230 V/50 Hz.
■ Accessory cables: NYM with the
required number of conductors for
the external connections.
■ Allow all cables in area "K" (see
page 7) to protrude 2000 mm from
the wall.
G Non-return valve
H Drain
K Cold water
L Drinking water filter
M Pressure reducer to DIN 1988-2,
issue Dec. 1988
N Non-return valve/pipe separator
O Cold water connection at connec-
tion set (accessory)
Preparing for installation
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