Lennox Hearth L20 DVF-2 Gas Heater User Manual


 
CARE AND OPERATION
PAGE 16
(ALL MODELS)
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: If you do not follow these instructions ex-
actly, a fire or explosion may result causing property
damage, personal injury or loss of life.
A. This appliance has a pilot which must be lit. When lighting
the pilot, follow these instructions exactly.
B. 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.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electric switch; do not use any
phone in your building.
Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire
department.
C. 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 hand, don’t try to repair it, call a qualified service
technician. Force or attempted repair may result in a fire
or explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been under water.
Gas Control Knobs
LIGHTING AND SHUTDOWN INSTRUCTIONS
1. STOP! Read the safety information on this page or on label (on ap-
pliance).
2. Turn off all electrical power to the appliance (unplug blower power
cord). Make sure the burner ON/OFF switch is in the OFF position.
3. To gain access to the gas controls, swing the control access door
open. The control access door is located directly under the window.
4. Push in gas control knob slightly and turn clockwise
3 to “OFF.”
NOTE: Knob cannot be turned from “PILOT” to “OFF” unless knob is
pushed in slightly. Do not force.
5. Wait five (5) minutes to clear out any gas. Then smell for gas, in-
cluding near the floor. If you smell gas, STOP! Follow “B” in the
safety information above on this label. If you don’t smell gas, go to
the next step.
6. Visually locate the pilot located in the center of the firebox beneath
the rear ceramic log.
7. Turn knob on gas control counterclockwise
4 to “PILOT.”
8. This appliance contains a spark ignition system (piezo igniter), which
is used to light the pilot. Push in the gas control knob all the way and
hold it in. Immediately press the button on the piezo igniter located
to the left of the gas control knob. The spark produced by the piezo
igniter should light the pilot. Continue to hold the control knob in for
about one (1) minute after the pilot is lit. Release the gas control
knob and it will pop back up. Pilot should remain lit.
If it goes out, repeat steps 4 through 8.
If the knob does not pop up when released, stop and immediately
call your service technician or gas supplier.
If the pilot will not stay lit after 3 or 4 tries, turn the gas control knob
to “OFF” and call your service technician or gas supplier.
1. Turn gas control counterclockwise
4 to “ON.” Use rocker
switch, located either on the control panel or the exterior side
panel, to operate main burner. Adjust variable pressure dial
(RB Regulator / Flame Height Control) to set burner flame to
desired heat output.
2. Swing the control access door closed.
3. Turn on electrical power to the appliance (plug in blower power
cord. See page 17, Circulation Blower Operation.)
TO TURN OFF GAS TO THE APPLIANCE
1. Turn off all electric power to the appliance if service is to be per-
formed.
2. To gain access to the gas controls, swing the control access door
open. The control access door is located directly under the window.
3. Push in gas control knob slightly and turn clockwise
3 to “OFF.”
NOTE: Knob cannot be turned from “PILOT” to “OFF” unless knob is
pushed in slightly. Do not force.
4. Swing the control access door closed.
Piezo Igniter
Inlet
Pressure
Tap
Wiring
Terminals
Outlet Pressure Tap
Pilot Adjustment Screw
Convertible HI/LO
Regulator
Regulator
Cap
Thermocouple
Igniter
Electrode
Pilot
Hood
Thermopile
Pilot Assembly