RECOMMENDATIONS FOR GAS CONNECTION
Essential recommendations for safety
•
The gas connection must comply with all applicable local standards and regulations,
and the circuit will be equipped with a gas pressure regulator as required.
•
Do not check for gas leaks with an open flame. Use a gas detection device or
bubble test.
•
The gas burners are factory preset for use with natural gas [equivalent to G20].
Do not adjust or attempt to measure gas valve outlet pressure. The gas valve is
factory-set for the correct outlet pressure and requires no field adjustment.
•
The natural gas to propane conversion or the reverse is authorized in certain
countries. Refer to the table of gas categories in the technical characteristics
of this manual. In Belgium, please contact Groupe Atlantic Belgium for gas
conversion.
•
The gas orifice installed on the boiler must never be modified or replaced with a
different size orifice, except in the case of a gas conversion process, which shall be
performed according to the provided procedure and requirements.
•
The CO
2
, gas flow rate, air flow rate and air/gas supply parameters are factory-
preset and may not be modified
in Belgium
, except for type I 2E(R)B boilers.
•
Do not change the OFFSET (A) setting of the gas valve: it is factory-preset and sealed.
Essential recommendations for the correct operation of the appliance
•
Refer to the technical characteristics of this manual or to the burner
documentation to know the connection diameters.
•
Bleed the gas duct and check thoroughly if all the boiler tubes, both internal and
external, are tight.
•
Check that the gas type and pressure from the distribution network are compatible
with the appliance settings. Refer to the product type plate.
•
Check the boiler electrical connection, the boiler room air vent system, the
tightness of flue gas outlet pipes and of the burner chamber plate.
•
Control the gas pressure and consumption at appliance start up.
•
Check the boiler CO
2
adjustment (refer to the adjustment procedure and the
technical data).
2
3
4
6
5
1
A
A
PRESTIGE 42-50-75-100-120 Solo : A1007856 - 664Y6200 • G
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FR
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33
INSTALLATION
CONVERSION TO PROPANE AND G25 NATURAL GAS
General remarks
•
According to the indication on the type plate, the boiler is factory preset to operate
with natural gas (G20/G25). Converting the boiler to propane is done through the
addition/replacement of an orifice and adjustments. In Belgium, this conversion
procedure can only be carried out by Groupe Atlantic Belgium personnel. Please
contact Groupe Atlantic Belgium for further information.
Set-up conditions
• External power supply isolated
• Gas supply closed
• Front and top panels of the boiler open, refer to “Removal and Installation of the Front and Top Pan-
els” on page 32
Procedure of orifice addition
Prestige 42 - 50 - 75 Solo
1. Disconnect the plug from the gas valve (
2
).
2. Disconnect the air inlet.
3. Disconnect the gas pipe connection (
1
) by releasing the union.
4. Remove the gas valve/venturi assembly by releasing two screws (
5
). Retain the screws for rein-
stallation.
5. Remove the gas valve from the venturi by releasing 3 screws (
6
). Retain the screws for rein-
stallation.
6. Install the orifice (
3
) in the center of the O-ring (
4
).
Make sure to position the O-ring correctly.
7. Reinstall the gas valve (
2
) on the venturi using three screws (
6
) and torque the screws (
6
) i.a.w.
“Torque Values” on page 44.
8. Reinstall the gas valve/venturi assembly (
2
) on the fan assembly using 2 screws (
5
) and torque
the screws i.a.w. “Torque Values” on page 44.
Prestige 42 - 50 - 75 Solo
Prestige 42 - 50 - 75 Solo
Prestige 100 - 120 Solo
•
Make sure to remove the P100/P120 orifice when operating the boiler with G25
gas, in order to reach the normal performance values.
