Lennox LGH240H

Page 82
C-Heating Startup
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING
Danger of explosion. Can cause injury
or product or property damage. If
overheating occurs or if gas supply
󰀨󰀨
󰀨
electrical supply.
IMPORTANT
This unit is equipped with an automatic spark
ignition system. Do not attempt to light manually.
BEFORE LIGHTING smell all around the appliance area


Use only your hand to push in or turn the gas control knob.
Never use tools. If the knob will not push in or turn by
-
          
explosion.
In case of a safety shutdown, move thermostat switch to
OFF and return the thermostat switch to HEAT to reset
ignition control.
Placing Furnace In Operation
Gas Valve Operation for Honeywell VR8205Q/VR8305Q

1 - Set thermostat to lowest setting.
2 - 󰀨
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 the knob on the gas valve clockwise to “OFF”.
Do not force.
6 -           
then smell gas, STOP! Immediately call your gas
supplier from a neighbor’s phone. Follow the gas
supplier’s instructions. If you do not smell gas, go
to the next step.
LOW FIRE
ADJUSTMENT
HIGH FIRE
ADJUSTMENT
INLET
PRESSURE
TAP
MANIFOLD
PRESSURE
TAP
GAS VALVE
GAS VALVE SHOWN IN “OFF” POSITION
FIGURE 28
7 - Turn the knob on the gas valve counterclockwise to
“ON”. Do not force.
8 - Close or replace the heat section access panel.
 Turn on all electrical power to appliance.
10 - Set thermostat to desired setting.
11 - The combustion air inducer will start. The burners
will light within 40 seconds.
12 -          
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
󰀨
your service technician or gas supplier.
󰀨
1 - If using an electromechanical thermostat, set to the
lowest setting.
2 - 󰀨
power to the appliance.
3 - Open or remove the heat section access panel.
4 - Turn the knob on the gas valve clockwise to “OFF”.
Do not force.
D-Safety or Emergency Shutdown
 󰀨         
valves.