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• Connect the stainless steel flexible hose to the gas valve selector
group, taking care to properly insert the N gas seal:
• Locate the cable with Wieland plug running out of the gas valve
group and insert the plug into the burner socket;
• Close the burner cover;
• The burner is not pre-adjusted by the manufacturer and must be
set according to data reported in Table of Technical
Characteristics of the user manual: follow the instructions in the
manual to complete the connection of the machine to the gas
supply system and for commissioning
Warning
Check all threaded connections on the gas line.
When commissioning, check for any gas leaks or
seepages using soap and water
4.5. CONNECTION TO FUEL SUPPLY
Warning
The heater must be installed, set up, and used in
compliance with all applicable regulations.
Warning
Before installing, check the gas supply conditions
required for the type of gas chosen.
The gas supply pipe must be properly sized, conform to the installed
thermal power, and guarantee the necessary conditions for gas
supply.
Warning
The gas supply pressure must be guaranteed during
heater operation and not with the heater off.
The space heater has a gas ramp with: gas filter, pressure regulator,
safety electrovalve, work electrovalve, pressure stabilizer, pressure
valve.
It is good practice for the installer to set up the supply line as
follows:
1: filter-pressure regulator or filter
2: antivibration joint
3: stopcock
4: gas ramp
Parts (1), (2) and (3) are available as accessories and are not
supplied with the heater.
When the line has been connected:
• Bleed the gas supply pipe;
• Check that the gas pipe is sealed.
• Open the gas stopcock and check the seal of all connections to
the heater.
In case of connection of heater to natural gas, the installation shall
conform with local codes or, in the absence of local codes, with the
National Fuel Gas Code ANSI Z223.1/NFPA 54 and the Natural Gas
and Propane Installation Code, CSAB149.1.
In case of connection to a propane supply cylinder:
(a) the installation must conform with local codes or, in the absence
of local codes, with the Standard for the Storage and Handling of
Liquified Petroleum Gases, ANSI/NFPA 58 and the Natural Gas
and Propane Installation Code, CSA B149.1.
(b) to determine size and capacity of the cylinder(s) and for any
specific requirements consult your LP gas supplier. In any case
propane tank should not be lower than 100 lb (90 liters)
(c) the cylinder supply system shall be arranged to provide for
vapour withdrawal from the operating cylinder;
(d) the gas shall be turned off at the propane supply cylinder when
the heater is not in use;
(e) when the heater is to be stored indoors, the connection between
the propane supply cylinder and the heater must be disconnected
and the cylinders removed from the heater and stored in
accordance with Standard for the Storage and Handling of
Liquified Petroleum Gases, ANSI/NFPA 58 and CSA B149.1,
Natural Gas and Propane Installation Code.
The appliance and its individual shut-off valve must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of 1/2
psi (3.5 kPa).
The appliance must be isolated from the gas supply piping system
by closing its individual manual shut-off valve during any pressure
testing of the gas supply piping system at test pressures equal or
less than 1/2 psi (3.5 kPa).
A minimum 1/8” NPT plugged tapping, accessible for test gauge
connection, must be installed immediately upstream of the gas
supply connection to the appliance.
4.6. CONNECTION TO EXHAUST DUCT
Exhaust ducts must be in steel and conform to local/national rules.
Efficient combustion and trouble-free working of the burner depend
on efficient flue draft.
The unit must be connected to the chimney flue in compliance with
current legal regulations and in line with the following guidelines:
• The path of the flue pipe smoke should be as short as possible
and should slant upwards (minimum height 1 m);
• There should be no sharp curves in the pipes, and the diameter of
the pipes must never be reduced;
N
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