13
Note
The illustrations show how gas supply pipe
A
, provi-
ded as an accessory, should be routed.
"Gas supply pipe" installation instructions
!
Please note
Mechanically loaded gas supply pipes lead to
leaks and appliance damage.
■
When undoing or tightening gas connections,
counterhold with a second open-ended span-
ner.
■
Ensure all gas connections are kept free of
load and torque stress.
A
Fig. 8
Boilers up to 80 kW
A
Fig. 9
Boilers 120 to 318 kW
Routing options for the gas supply pipe
If the Viessmann gas supply pipe (accessories) is not
used, select one of the following pipe routing options:
Routing options for the gas supply pipe
■
To the side, left
■
To the side, right
■
To the back, through the boiler floor
Boiler casing pipe knock-out
On the relevant side or back panel, break out the panel
section along the perforation by tapping lightly with a
hammer.
Danger
Sharp edged metal panels can cause cuts.
Wear safety gloves.
Fitting the gas supply pipe (accessories)
5839818
