Placing Unit In Operation; Turning Off Gas To Unit - Lennox LGH180H Installation Instructions Manual

A-Placing Unit In Operation
WARNING
Danger of explosion and fire. Can cause
injury or product or property damage.
You must follow these instructions
exactly.
Gas Valve Operation for Honeywell VR8205Q /
VR8305Q and White Rodgers 36H54 (figure 26 and 27)
WHITE RODGERS 36H54 GAS VALVE
Two-Stage
INLET
PRESSURE
TAP
GAS VALVE SWITCH SHOWN IN ON POSITION.
FIGURE 26
HONEYWELL VR8205Q/VR8305Q SERIES GAS VALVE
HIGH FIRE
LOW FIRE
ADJUSTMENT
ADJUSTMENT
INLET
PRESSURE
TAP
Gas valve knob is shown in OFF position.
FIGURE 27
1- Set thermostat to lowest setting.
2- Turn off all electrical power to appliance.
3- This appliance is equipped with an ignition device
which automatically lights the burner. Do not try to
light the burner by hand.
4- Open or remove the heat section access panel.
5- Turn gas valve switch to OFF. See figure 26. On
Honeywell VR8305Q gas valves, turn the knob on the
gas valve clockwise
figure 27.
6- Wait five (5) minutes to clear out any gas. If you then
smell
gas supplier from a neighbor's phone. Follow the gas
supplier's instructions. If you do not smell gas, go to
the next step.
7- Turn gas valve switch to ON. See figure 26. On
Honeywell VR8305Q gas valves, turn the knob on the
MANIFOLD
gas valve counterclockwise
PRESSURE
force. See figure 27.
TAP
8- Close or replace the heat section access panel.
9- Turn on all electrical power to appliance.
HIGH FIRE
ADJUSTMENT
10- Set thermostat to desired setting.
11- The ignition sequence will start.
LOW FIRE
ADJUSTMENT
12- If the appliance does not light the first time (gas line
not fully purged), it will attempt up to two more
ignitions before locking out.
13- If lockout occurs, repeat steps 1 through 10.
14- If the appliance will not operate, follow the
instructions "Turning Off Gas to Appliance" and call
your service technician or gas supplier.

Turning Off Gas to Unit

MANIFOLD
PRESSURE
1- If using an electromechanical thermostat, set to the
TAP
lowest setting.
2- Before performing any service, turn off all electrical
power to the appliance.
3- Open or remove the heat section access panel.
4- Turn gas valve switch to OFF. On Honeywell
VR8305Q gas valves, turn the knob on the gas valve
clockwise
5- Close or replace the heat section access panel.
Page 41
to "OFF". Do not force. See
gas, STOP! Immediately
to "OFF". Do not force.
WARNING
Danger of explosion. Can cause injury or
death. Do not attempt to light manually.
Unit has a direct spark ignition system.
call your
to "ON". Do not
507124-04 3/2016