Instruction manual for installation, maintenance and use
Gas Kettles PMK.G...
PMK.G-GB-07
Page
13 di 36
2.2.3. GAS CONNECTION PROCEDURES
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The choice of the gas piping depends on the diameter required for the type of gas,
appliance and installation and should be performed in conformity with current
regulations.
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The gas feed plant can either be fixed or be disconnected; if flexible pipes are
employed they must be made from stainless material and not be affected by corrosion.
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If sealing materials are used for connections, they must be certified and approved for
the purpose.
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The gas fitting is located on the lower right side of the appliance
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Once the appliance has been connected, carry out a leakage test on all the fittings
connecting the appliance to the plant. It is advisable to use a leakage spray, otherwise
treat the parts with a foam that does not produce corrosion; no bubbles should
develop. Carry out the leakage test also on the rapid cut-off valve.
Warning! : Flames are strictly prohibited for leakage tests!
2.3. CHECKING THE OPERATION OF THE GAS SYSTEM
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Check that the appliance has been prepared (category and type of gas) equivalent to
the family of gas available on site. If not, it is necessary to convert the appliance to
whatever is available. See the paragraph “Conversion to other types of gas”.
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The appliance must be used with the correct injectors for its thermal power rating (See
table 5 in the “Technical data”).
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The operation of the appliance with its heating capacity depends on the inlet pressure
and the calorific power of the gas.
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The pressure range (inlet pressure) within which the appliance is allowed to operated is
stated in table 6b “Inlet pressure” of the paragraph “Technical Data”. The appliance shall
not be operated out of the given pressure range. If pressure should differ from the
figures stated in table 6b, advise the gas board or the company which has installed the
system.
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The lower calorific value of the gas can be checked with the supply company or
agency, and should comply with the information given in table 5 “Gas data” in the
“Technical data” heading.
