Ariston SGA OPTIMA V X 160 Instructions Pour L'installation Et L'entretien page 36

GB
GAS CONNECTION
WARNING!
Installation, fi rst ignition and main-
tenance work must be performed by
qualifi ed personnel only, in accordance
with the instructions provided.
- Make sure that the main gas supply match-
es the gas type on the unit's data plate
- Open all doors and windows
- Make sure there are no sparks or naked
fl ames in the room
- Water heaters are normally adjusted for
operation using methane gas G20 (PCI)
8100 kcal/m3 approximately. No adjust-
ment is needed if this gas is in use.
Adjustment for other types of gas must be
done only by qualifi ed personnel.
- Use a 1/2" size pipe to connect the gas
supply to the valve.
- We suggest you fi t a stop valve in the gas
supply line, upstream of the gas unit.
- Make the connection to the gas supply us-
ing rigid pipes (steel, copper etc) and not
RESERVED FOR INSTALLATION PERSONNEL
1 Electric gas valve
2. Gas inlet fi tting G½
3. Pressure adjustment screw
4. Valve-burner fi tting
5. Gas burner
6. Flame detector electrode
7. nozzle Ø 2,55 (G20)
8. Ignition electrode
CHECKING THE PRESSURE OF THE GAS VALVE
Methane (G20)
36
5
GAS SUPPLY PRESSURE
160
200
thermoplastic nor rubber pipes.
- After taking off the cover and making the
connection, check for leaks in the gas sys-
tem using soapy water.
Do not use a fl ame for this test.
The water heater has a magnesium anode fi t-
ted in the tank. The life of the anode
is proportional to the average temperature,
the chemical composition and the
amount of water supplied.
We suggest you check the state of the anode
every 18-24 months, noting that the surface
must be relatively smooth. If the diameter is
less than 10-12mm, we suggest you replace
the anode with a new original anode.
The anode is fi tted in the lower part of the
water heater, below the protection cover.
Ch24
Ch14
1
8 6
7
20 mbar
20 mbar
ANODE ANODO
3
2
4
BURNER PRESSURE
13.0 mbar
13.8 mbar