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

Preparing for installation
(cont.)
2. Prepare the DHW connections.
Install the safety assembly (acces-
sory or on-site provision) in accord-
ance with DIN 1988 in the cold water
line (see page 10).
Recommendation:
Install the safety valve above the
DHW cylinder to protect it against
contamination, scaling and high tem-
peratures.
Connect the drain hose to conden-
sate collector L. Remove plug from
condensate collector.
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 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.
Preparing for installation
2
,
9