Ariston Thermo SGA CA 120 Instructions Pour L'installation Et L'entretien page 91

RESERVED FOR THE INSTALLER
INSTRUCTIONS FOR ADJUSTMENT TO FUNCTIONING WITH GAS
DIFFERENT TO THAT OF CALIBRATION
PRESCRIPTIONS
The appliances of category II2H3+ are
usually calibrated for functioning with G20
methane gas and are adjustable to functio-
ning with liquid gas G30-G31.
GAS UNIT DISMANTLING AND NOZZLES
CHANGE
To adapt the water heater to a gas diff erent
from that of calibration, the main nozzle of
the burner and of the pilot must be repla-
ced.
NOTE:
The nozzles for the adjustment of functio-
ning with gas diff erent to that of calibra-
tion, must be expressly requested by the
dealer, if not provided with the appliance.
We recommend proceeding after having di-
smantled the gas unit.
17
1. gas valve
2 temperature regulation
knob
3 1/2" G gas connection
4 piezo igniter
5 thermocouple
6 ignition electrode
7 pilot burner
8 main burner
9 main burner nozzle
10 gas valve support
16
GAS UNIT DISMANTLING
• Disconnect the cables of the fumes pro-
tector; disconnect the piezo ignition cable
and remove the gas valve thermostat pro-
be from the sheath.
• Remove the gas unit by slightly pulling it to
the outside and turning it (see fi g 18) until
full removal of the burner
8
9
4
3
GB
10
5
6
7
1
2
10
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