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4.6 HOOK-UP WITH THE GAS SYSTEM
- Gas hook-up, transformation and testing must be done by professionally qualified personnel as per the manufacturer’s
instructions, in conformity with the standards.
- A fast-closing shut-off valve must be installed upstream from the oven.
- The oven must be supplied with one of the gases with the pressure specifications given in Table I on page 12.
- The gas pressure is measured at the initial pressure socket (see figure below) or at the gas valve inlet with the burner on (Tab. 2).
- The oven is tested and fitted for operating with natural gas at 20 mbar or with liquid gas as required (see Table I). If the
installer hooks up with a different gas, he or she must carry out the operations given in section 4.6.1.
- Hooking up to the gas mains must be done with a metal pipe of suitable cross-section and a fast-acting shut-off valve must
be installed upstream to standards.
- After hooking up to the gas mains, check there is no leakage at the fitting points with the soap solution method. NEVER
WITH A LIT MATCH!
4.6.1 TRANSFORMATION FOR OPERATION WITH ANOTHER TYPE OF GAS
The nozzles supplied for different types of gas are marked and contained in a plastic bag. The size of the orifice is given in
hundredths of a millimetre.
4.6.1.1 REPLACING BURNER NOZZLE (FGMD67, FGMD67SC, FGMD107 and FGMD107SC)
- Remove the right panel.
- Remove the condensation tray. Strip the front portion of the combustion chamber.
- Unscrew the nozzle with a 17 mm. wrench (Tab.1 pos. 1).
- Replace the nozzle with the corresponding one for the chosen gas as indicated in Table II.
Don’t forget the aluminium gas seal washer!
