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If necessary:
• remove the cover;
• press the button (7) in the required position;
• replace the protective cover.
Warning
If it is necessary, the power cable can only be
replaced with a H07RN-F 1.5 mm
Stripping the wires must be done in such a way that
the earth wire remains at least 2 cm longer.
If any room thermostat or other accessories are connected to the
system (such as the timer for example) this must be done by
connecting the electrical cable to the thermostat plug (10):
• Take the plug (10) out of the power switchboard, open it and
remove the electrical jumper between terminals 2 and 3 of the
plug.
• Connect the thermostat electrical cable to terminals 2 and 3 of
the thermostat plug (10).
• Close the plug again and plug it back into the power
switchboard.
Warning
Never attempt to switch the heater on or off by
connecting the room thermostat (or other control
devices) to the electrical power line.
FUEL LINE CONNECTIONS
Warning
Before
installation
distribution conditions, the gas type and pressure and
the current unit regulation status are compatible.
The gas supply hose connection must be of suitable size and
adequate for the type of system to be set up and must be effected
by arranging the "gas ramp" as shown in Fig. 3: the gas pipe (1), the
cut-ff valve (2) and the antivibration coupling (3) are not supplied
with the heater and so must be provided by the installer connecting
them to the al gas valve group (4) supplied with the space heater.
1st START UP
The heater is set up for one of the operating categories in Tab. I:
the adhesive label applied on the gas valve group (4) indicates the
appliance category (usually category I2H, G20 / 20 mbar).
Before starting the generator it is necessary to consult the Tab. I
to establish the original appliance category, fixed compulsory from
the referring European and national rules, relating to the country of
residence.
Warning
If the appliance category is not the one the unit is set
up for, follow the detailed instructions in the section
"CHANGING TYPE OF GAS".
Only when the heater has been prearranged according to its
proper appliance category will it be possible to carry out the
following operations:
• Leak away some gas from the feed pipe;
• Check that the gas pipe has no leaks.
• Open the gas stopcock and start the space heater;
2
diam. cable.
check
that
the
local
Fig. 3
EN
Warning
The gas valve group is set up for a maximum supply
pressure of 200 mbar.
If the supply pressure is greater than this value, the
valve safety membrane could break and cause the
valve safety stop to be triggered.
• Connect a gauge to the upstream pressure intake (4) of the
valve group (Fig. 3);
• Read the supply pressure off the 1st gauge and if necessary
adjust the gas supply system pressure regulator until the
correct supply pressure shown in Tab. I is reached;
• For categories I2H, I2ELL and I2L only, read the working
pressure off the 2nd gauge and if necessary use a screwdriver
to adjust the pressure regulator (1) to restore the working
pressure shown in Tab. I.
CHANGING TYPE OF GAS
This operation may be carried out several times during the
working life of the heater and not only at initial start-up.
First of all refer to Tab. I to identify the reference category for
natural gas or liquid gas according to the country of residence. For
each category the supply pressure, the working pressure and the
arrangement mof the diffusion ring (3) are stated.
To convert from one type of gas to another proceed as follows
(Fig. 1-3):
• If stated in Tab.I, change the diffusion ring (3):
• Remove the upper body of the heater;
• Unscrew and remove the ionisation electrode (15);
gas
• Undo the screws that secure the combustion head (16) to the
combustion chamber (1).
• Remove the three screws on the burner head plate and change
the diffusion ring securing it in such a way that the ignition
electrode is equidistant between the two subsequent holes;
• Calibrate the gas pressure switch (4) on the gas valve group
(Fig.4):
• Regulate the gas pressure switch to a value equal to half the
supply pressure;
• Regulate the pressure regulator for the gas valve group (Fig.4);
to the burner pressure stated in Tab. I.:
• Connect a gauge to the pressure intake (1) upstream and a
second gauge to the pressure intake downstream (2) of the
valve group;
• Start the heater and take the reading off the 1st supply
pressure gauge and if necessary adjust the pressure regulator
(3) for the gas supply system until the correct supply pressure
shown in Tab. I is reached;
• Take a reading off the 2nd working pressure gauge and if
necessary use a screwdriver to adjust the pressure of the gas
valve group (4) to restore the working pressure shown in Tab. I
• Apply the adhesive label with the words "SET UP FOR ..."
corresponding to the type of fuel and the category chosen on
the gas valve group.
OPERATING INSTRUCTIONS
START-UP
To start the space heater (Fig. 1):
• Make sure the switch (2) is set to "0";
• Switch on power to the heater by means of the isolation switch
on the power switchboard;
• Move the switch (2) to position
after a few seconds of ventilation combustion will begin
(opening of the gas valve is signalled by the light (4) coming
on; the main fan will also start working only when the
combustion chamber is hot.
• Operation will only be automatic if a thermostat or another
control device is connected to the thermostat plug (10).
• If after these operations, the generator does not work, refer to
the "FAULTS, CAUSES AND REMEDIES" section and find the
cause.
17
: the burner fan will start and
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