Retrofire RF24BN, Инструкция по установке и эксплуатации

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9
Supply Gas
It is preferable to rough-in the gas line at this point before proceeding with the fi rebox installation.
The gas supply inlet connection is a 3/8” NPT female connector. For detailed location of this connector, see
illustration in section
Dimensions
. If a circulating fan or isolating valve is to be installed, adjust the routing of
the gas line to suit.
Use only new black iron or steel pipes or copper tubing if acceptable—check local codes. Note that in USA,
copper tubing must be internally tinned for protection against sulfur compounds.
Unions in gas lines should be of ground joint type.
The gas supply line must be sized and installed to provide a supply of gas suf
fi cient to meet the maximum
demand of the appliance without undue loss of pressure.
Sealant used must be resistant to the action of all gas constituents including LP gas. Sealant should be applied
lightly to male threads to ensure excess sealant does not enter gas lines.
The supply line should include a manual shut-off valve and union to allow the appliance to be disconnected for
servicing.
Pressure test the supply line for leaks.
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 ½ psig (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 to
or less than ½ psig (3.5 kPa).
Failure to either disconnect or isolate the appliance during
pressure testing may result in regulator or valve damage.
Consult your dealer in this case.
The minimum supply pressure is given in the section
Specifi cations
of this manual.
All piping and connections must be tested for leaks after
installation or servicing. All leaks must be corrected
immediately.
When testing for leaks:
Make sure that the appliance is turned off.
Open the manual shut-off valve.
Test for leaks by applying a liquid detergent or soap
solution to all joints. Bubbles forming indicate a gas
leak.
Never use an open fl ame to check for leaks.
Correct any leak detected immediately.
The pressure test tapping locations are shown in fi gure above. A built-in non-adjustable regulator controls the
burner manifold pressure. The correct pressure range is shown in the ratings table in section
Specifi cations
of
this manual. The pressure check should be made with the burner alight and at its highest setting. See
Lighting
Instructions
section for full operating details.
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Inlet Pipe
Manifold Pressure
Test Tap
Supply Pressure
Test Tap
Loosen screw to check
(tighten afterwards)
Pressure Test Tappings