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LGH036-360 User's
TYPICAL ELECTROMECHANICAL THERMOSTAT
FIGURE 1
Placing Unit Into Operation
WARNING
Danger of explosion and fire. Can cause
injury or product or property damage.
You must follow these instructions ex
actly.
Gas Valve Operation (figures 2 and 3)
1- Close or replace the heat section access panel.
2- Set thermostat to lowest setting.
3- Turn off all electrical power to appliance.
4- This furnace is equipped with an ignition device which
automatically lights the burner. Do not try to light the
burner by hand.
5- Open or remove the heat section access panel.
6- Honeywell VR8205 Gas Valve with ON/OFF Lever -
Switch gas valve lever to OFF. See figure 2.
Honeywell VR8305 Gas Valve with Knob - Turn knob
on gas valve clockwise
to OFF. Do not force. See
figure 3.
7- Wait five (5) minutes to clear out any gas. If you 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.
8- Honeywell VR8205 Gas Valve with ON/OFF Lever -
Switch gas valve lever to ON. See figure 2.
Honeywell VR8205 Gas Valve with Knob - Turn knob
on gas valve counterclockwise
to ON. Do not
force. See figure 3.
9- Close or replace the heat section access panel.
10- Turn on all electrical power to appliance.
GAS VALVE SHOWN IN ON POSITION
Honeywell VR8205 Gas Valve with ON/OFF Lever
Single-Stage
MANIFOLD
PRESSURE
OUTLET
INLET
PRESSURE
PORT
MANIFOLD
PRESSURE
ADJUSTMENT
SCREW
FIGURE 2
HONEYWELL VR8205Q/VR8305Q SERIES GAS VALVE
Gas valve knob is shown in OFF position.
FIGURE 3
LOW FIRE
ADJUSTMENT
HIGH FIRE
ADJUSTMENT
INLET
PRESSURE
TAP
MANIFOLD
PRESSURE
TAP
11- Set thermostat to desired setting.
NOTE - When unit is initially started, steps 1 through 9
may need to be repeated to purge air from gas line.
12- The combustion air inducer will start. The burners
will light within 40 seconds.
13- If the furnace does not light the first time (gas line not
fully purged), it will attempt up to two more ignitions
before locking out.
14- If lockout occurs, repeat steps 1 through 10.
15- If the furnace will not operate, follow the instructions
“Turning Off Gas to Furnace” and call your service
technician or gas supplier.
Turning Off Gas to Furnace
1- If using an electromechanical thermostat, set to the
lowest setting.
2- Before performing any service, turn off all electrical
power to the furnace.
3- Open or remove the heat section access panel.
4- Honeywell VR8205 Gas Valve with ON/OFF Lever -
Switch gas valve lever to OFF.
Honeywell VR8205 Gas Valve with Knob - Turn knob
on gas valve clockwise
to OFF. Do not force.
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