Manu_ENG_UFO_ rev. 0_04_2012
pag. 11
Connection to GAS supply
IMPORTANT: hydraulic connection of the appliances to the gas distribution net must be made
according to information given in this technical book exclusively by professionally qualified
staff.
The appliances are supplied according to the type of gas chosen, and then before making the
connection to the power network of gas, make sure that the gas used and pressure of gas
circuit correspond to what is shown on the data plate label of the unit. Before
connection to the gas pipeline, make sure that the pipes are properly cleaned and
produced in accordance with regulations in force in the country of installation.
NOTICE: provide a fuel interception tap close to the appliance, and with easily accessible
position; make the connection between the appliance and the gas network using an
approved steel flexible pipe.
IMPORTANT: "GAS supply pressure", defined as the dynamic pressure of the circuit,
or part of the circuit downstream of the pressure reducer, with all the appliances running,
and must be detected in this condition. With lower pressure difficulties in start-up may
occur.
Once the connection is made, in compliance with the rules in force in the country of
installation, a) verify the sealing of hydraulic pipes and gas connection to the unit, b) check
that the pressure is correct, c) make sure that the apparatus functions in the conditions for
which it was prepared.
UFO EB /08 = electronic start-up: gas connection is 3/8”. Appliances are equipped with
a multifunctional group comprising: double seat valve fitted with pressure stabilizer and
integrated flame control. The stabilizer accepts a maximum inlet pressure of 50 mbar
and the valve is equipped with a pressure intake, to measure and control incoming and
outgoing pressures.
UFO M /08 = manual start-up: gas connection is 3/8”. Appliances are equipped with
valve tap, pressure stabilizer for maximum inlet pressure of 50 mbar with pressure
intake at nozzle.
IMPORTANT: all appliances are supplied already tested and set to the properly operating
pressure; DO NOT remove seal on the pressure regulator (R): expiring of guarantee!
Feeding gas pipeline must be kept at a distance of at least 1 m from the zone
of discharge of the combustion products and must not be exposed to direct
irradiation of appliances