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•• It’' s preferable to rough-in the gas line at this point
before proceeding with the rebox installation.
•• The gas supply inlet connection is a 3/8”" NPT
female connector. For detailed location of this
connector, see drawing 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 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.
Supply Gas Installation
•• When testing for leaks:
••
••
••
••
•• The pressure test tapping locations are shown in
gure below. A built-in non-adjustable regulator
controls the burner manifold pressure. The correct
pressure range is shown in the 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.
Manifold Pressure
Test Tap
Loosen screw to check
(tighten afterwards)
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 ame
to check for leaks.
Correct any leak detected immediately.
Inlet Pipe
Supply Pressure
Test Tap
Pressure Test Tappings
QUALIFIED
INSTALLER
17
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