18
Gas Line Installation
This stove must be connected to the gas line in accordance with local
codes and/or the National Fuel Gas Code, ANSI Z223.1 (In Canada, the
current CAN/CSA B149.1 installation code). Remove the four screws
holding the back of the pedestal in place. Slide rear cover back far enough
to gain access to the inside of the pedestal. Remove plastic plug from
the 3/8”x 9” pipe. Connect gas line to the 3/8”x 9” pipe. After connect-
ing the gas line, all joints in the line and connections at the valve should
be checked for leaks before final positioning of the unit. Conduct a gas
leakage test of the appliance piping and control system downstream of
the shutoff valve in the supply line to the appliance.
Gas Pressure Requirements
A MAJOR CAUSE OF OPERATING PROBLEMS WITH GAS
APPLIANCES IS IMPROPER GAS PRESSURE!
The most important item to check during the initial installation
and the first thing to check when operating problems occur is
gas pressure! This appliance will not function properly unless
the required gas pressure is supplied. See the table on this
page for gas pressure requirements.
Two pressure taps are provided on the stove’s valve to check gas pressures.
To access the taps, remove the four socket head screws from the valve
control panel. The taps are located below the On/Off/Pilot knob (see
Figure 29 on Page 21). The left tap is the inlet (supply) pressure side.
To check inlet pressure (with the stove burning) insert a small flat-bladed
screwdriver into the tap and turn a half-turn counterclockwise. Cover the
tap with the line from the manometer and check the pressure. Close the tap
gently but securely after completing the check. The manifold (outlet) tap
is to the right of the inlet tap. To check manifold pressure (with the stove
burning at the high burn setting) insert a small flat-bladed screwdriver
into the tap and turn a half-turn counterclockwise. Cover the tap with the
line from the manometer and check the pressure. Again close the tap
gently but securely after completing the check. Check the taps for gas
leaks with a gas leak test solution (retighten if necessary).
If the pressure is not sufficient, make sure the gas supply line is large
enough, the supply regulator is properly adjusted and the total gas load
for the residence does not exceed the amount supplied.
Propane tanks are at pressures that will cause damage to valve com-
ponents. Verify that the tanks have step down regulators to reduce the
pressure to safe levels.
LP and Natural Gas Supplies:
Your Epic™ gas stove is equipped from the factory for use with natural gas
only as specified on the Safety / Listing label attached to the appliance.
This appliance can only be operated using propane gas (LP) if a certified
fuel conversion kit provided by Lennox Hearth Products is installed by a
qualified service technician.
Also check the orifice size on the label on the igniter bracket. It must be
the correct size for the fuel and altitude.
Do not run propane tank dry. Running the tank dry may cause a
hazardous condition due to pressure drop in empty tank.
Solid fuel is NOT to be used with this unit.
Fuel
Type
Inlet Pressure Manifold Pressure
Desired Minimum Maximum On Hi
Fire
On Lo
Fire
Natural
Gas
7" WC 5" WC 10.5" WC 3.5" WC 1.7" WC
LP Gas 11" WC 11" WC 13" WC 10" WC 6.0” WC
Check all connections
for leaks using a gas
leak test solution.
Figure 28
These appliances must be isolated from the gas supply piping system
(by closing their individual manual shut-off valve) during any pressure
testing of the gas supply piping system at test pressures equal to or
less than 1/2 psig (3.5 kPa).
These appliances and their individual shut-off valves must be discon-
nected from the gas supply piping system during any pressure testing
of that system at pressures greater than 1/2 psig (3.5 kPa).
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
To Next Page
General
