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00BNO9168-I (U0606551)
VARMAX -
Installation, Use and Maintenance
figure 17 - Diaphragm (275 and 320 models)
U0524542-#
4.10.2. On VARMAX
120, 140, 275 and 320
The type of gas is changed by installing the
diaphragm (brass part) provided with the boiler
(engraved B1P for 120 and 140 models or
engraved B3P for 275 and 320 models).
Unscrew the 4 nuts or screws depending on the
model (see opposite).
Install the diaphragm provided.
Screw the 4 nuts back in place.
Check the CO
2
After changing the type of gas:
- Check the sealing of the gas line.
- Stick the label provided in place of the
original label (G20).
Note:
In order to facilitate the operation, the mounting
flange located at the entrance to the gas line (on
the side nearest the network connection) may
require unscrewing.
figure 16 -
Diaphragm (120 and 140 models)
nut (x4)
diaphragm
B3P
Diaphragm
orientation
engraving
towards the
gas valve
nut (x4)