Connecting Gas Line - Lennox E36ODGNE Installation Instructions Manual

CONNECTING GAS LINE

Codes require a shut-off valve mounted in the
supply line. Figure 12 illustrates two methods
for connecting the gas supply. The flex-line
method is acceptable in the U.S., however,
Canadian requirements vary depending on lo-
cality. Installation must be in compliance with
local codes.
These appliances are equipped with a gas flex
line for use (where permitted) in connecting the
unit to the gas line. A gas flex line is provided
to aid in attaching the direct vent appliance to
the gas supply. The gas flex line can only be
used where local codes permit. See Figure 12
for flex line description. The flex line is rated for
both natural and propane gas. A manual shut
off valve is also provided with the flex line.
The gas control valve is located under the
refractory cover in front of the burner.
To access the valve, lift out the center refractory
and remove the access cover ( see Figure 13 ).
The control valves have a 3/8" (10 mm) NPT
thread inlet port.
Secure all joints tightly using appropriate
tools and sealing compounds (ensure pro-
pane resistant compounds are used in pro-
pane applications).
Turn on gas supply and test for gas leaks,
using a gas leak test solution (also referred to
as bubble leak solution). Note: Using a soapy
water solution (50% dish soap, 50% water) is
an effective leak test solution but it is not
recommended, because the soap residue that
is left on the pies/fittings can result in corro-
sion over time. Never use an open flame to
check for leaks.
A. Light the appliance (refer to the lighting
instructions label in the control compartment
or in the Homeowner's Care and Operation
Instructions).
B. Brush all joints and connections with the
gas leak test solution to check for leaks. If
bubbles are formed, or gas odor is detected,
turn the gas control knob to the "OFF" posi-
tion. Either tighten or refasten the leaking
connection and retest as described above.
C. When the gas lines are tested and leak free,
be sure to rinse off the leak testing solution.
Gas
Valve
Optional Hard Pipe Connection
³ ₈" Nipple
³ ₈" Union
³ ₈" Close Nipple
Figure 12 -
GAS CONNECTION
Figure 13 -
VALVE ACCESS
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Gas Flex Line Connector
³ ₈" NPT x ³ ₈
¹ ₂" x ³ ₈" Flare
Flare Fitting
Shut-Off Valve
³ ₈" Flex Tubing
¹ ₂ x ³ ₈ "
Reducer
³ ₈" Shut-Off Valve
Gas
Stub
11