Placing Unit In Operation; Gas Valve Operation; Turning Off Gas To Unit - Lennox KGB Series Unit Information

WARNING
Electric shock hazard. Can cause
injury or death. Before attempting to
perform any service or maintenance,
turn the electrical power to unit OFF at
disconnect switch(es). Unit may have
multiple power supplies.
WARNING
SMOKE POTENTIAL
The heat exchanger in this unit could be a source of
smoke on initial firing. Take precautions with respect
to building occupants and property. Vent initial sup­
ply air outside when possible.
BEFORE LIGHTING smell all around the appliance area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle on the floor.
The gas valve may be equipped with either a gas control
lever or gas control knob. Use only your hand to push the
lever or turn the gas control knob. Never use tools. If the the
lever will not move or the knob will not push in or turn by
hand, do not try to repair it. Call a qualified service techni­
cian. Force or attempted repair may result in a fire or explo­
sion.
WARNING
Danger of explosion. Can cause injury or
death. Do not attempt to light manually.
Unit has a direct spark ignition system.
This unit is equipped with an automatic spark ignition sys­
tem. There is no pilot. In case of a safety shutdown, move
thermostat switch to OFF and return the thermostat switch
to HEAT to reset ignition control.
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 (figures 20 and 21)
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.
HONEYWELL VR8215S GAS VALVE
MANIFOLD
PRESSURE
ADJUSTMENT
SCREW
INLET
PRESSURE
PORT
Gas valve switch shown in ON position.
WHITE RODGERS 36J54 GAS VALVE
MANIFOLD
PRESSURE TAP
INLET
PRESSURE TAP
Gas valve switch is shown in OFF position.
5- Switch gas valve to OFF. See figure 20 or 21 .
6- Wait five (5) minutes to clear out any gas. If you then
smell gas, STOP! Immediately call your gas suppli­
er from a neighbor's phone. Follow the gas supplier's
instructions. If you do not smell gas, go to the next step.
7- Switch gas valve lever to ON. See figure 20 or 21.
8- Turn on all electrical power to appliance.
9- Set thermostat to desired setting.
NOTE - When unit is initially started, steps 1 through 8 may
need to be repeated to purge air from gas line.
10- 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

1- If using an electromechanical thermostat, set to the
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- Switch gas valve to OFF.
5- Close or replace the heat section access panel.
Page 49
MANIFOLD
Single-Stage
PRESSURE
OUTLET
FIGURE 20
Two-Stage
HIGH FIRE
ADJUSTMENT
LOW FIRE
ADJUSTMENT
FIGURE 21