Pipe For Gas Connection; Checking Heat Output; Connection With Methane Gas H G20 - Delta FT-74G Serie Instructions Pour L'installation Et L'emploi

parts, such as the installation of a protection against radiation; particular attention must be paid in installing the
appliances adequately and safely. The feet are adjustable in height so that differencies in level can be avoided.

PIPE FOR GAS CONNECTION

The gas connection must be effected with steel or copper pipes, or otherwise with flexible steel pipes in compliance
with the national norms, if any exist. Each appliance must be provided with a cutoff cock for rapid interruption of the
gas supply. Once the appliance has been installed, it is necessary to check for gas leaks for the pipe fittings; do not use a
flame for this purpose but a non-corrosive substance such as soapy water or phoamy substances as contained in leak-
finder sprays. All our appliances undergo careful testing: the type of gas, the operating pressure and the category are
indicated on the data plate.

CHECKING HEAT OUTPUT

The appliances must be checked in such a way as to verify that the heat output is correct:
• The heat output (thermal power) is indicated on the data plate of the appliance.
• Firstly, check that the appliance can be used with the type of gas supplied; then check that the indication on the
plate corresponds to the gas to be used. For converting to another type of gas, check that the type of gas complies
with what is stated in this instruction manual.
The pressure must be read by inserting a gauge for liquids (e.g. a U gauge). With a minimum definition of 0,1 mbar,
into the relative pressure outlet (see fig. B position C).
Remove the screw from the airtight pressure outlet, connect the rubber pipe of the U gauge and read the pressure.
After reading, remove the flexible pipe of the gauge, put back the screw, tighten hermetically and check the pressure
tightness.
Connection for liquid gas G30/G31
The connection pressure for liquid gas is 30 mbar with butane and 37 mbar with propane.
Check the plate, read the pressure and verify that the description of the nozzle installed correponds to the one supplied
by the manufacturer.

Connection with methane gas H G20

The connection pressure for methane gas is 20 mbar.
Check the plate, read the pressure and verify that the description of the nozzle installed correponds to the one supplied
by the manufacturer.
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