27
X
X
Connect Gas Supply
The gas supply pipe should
enter the appliance case
through the opening at the
left side. The supply pipe
should be connected to the
appliance gas inlet pipe
located at the left side
of the control valve. Supply line connection to the inlet
pipe is 3/8” NPT female.
If the circulating fan is to be installed, be aware that the
supply pipe run inside the case should be at the same
height as the appliance inlet pipe in order to clear the fan.
If intending to
fi
t an internal isolating valve, check that it
will be clear of the fan.
Use only new black iron or steel pipes, CSST, or copper
tubing if acceptable—check local codes.
Note that in
USA, copper tubing must be internally tinned for
protection against sulfur compounds.
Union in gas lines should be of ground joint type.
The gas supply line must be sized and installed to
provide a supply of gas su
ffi
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 propane 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-o
ff
valve
to allow the appliance to be disconnected for servicing.
A plugges 1/8” NPT tapping must be installed in the
line. The tapping must be accessible for ttest gauge
connection and be immediately upstream of the gas
supply connection to the appliance.
Pressure test the supply line for leaks.
The appliance and its individual shut-o
ff
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 psig (3.5kPa).
The appliance must be isolated from the gas supply
piping system by closing its individual manual shut-o
ff
valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than 1/2
psig (3.5kPa).
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 on page 6 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 o
ff
.
• Open the manual shut-o
ff
valve.
• Test for leaks by applying a liquid detergent or soap
solution to all joints. Bubbles forming indicate a gas
leak.
The pressure test tapping locations are shown below.
A built-in non-adjustable regulator controls the burner
manifold pressure. The correct pressure range is shown
page 6 of this manual. The pressure check should
be made with the burner alight and at its highest
setting. See
Appendix A – Lighting Instructions Plate
page
46 for full operating details.
Gas Supply
Installation
WARNING
NEVER USE OPEN FLAME to check for leaks.
Correct any leak detected immediately.
Supply
pressure
test tapping
Manifold
pressure
test tapping
Pressure test tappings
Control
Valve
Manifold Pressure Adjustment
behind Plastic Cap