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Operating Instructions 

Before operating the furnace, read carefully all warnings and safety information in this manual. 

 

 

 

 

FOR YOUR SAFETY READ BEFORE OPERATING

   

 
 
 
A.  This appliance has a pilot which must be 

lighted by means of the piezo igniter 
installed on the unit. Do not try to light the 
pilot by hand. 

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 neighbour’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 h nd, don’t try to repair it, call a qualified service 
technician. Force or attempted repair may result in a fire or 
explosion. 

D.  Do n t 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  ny gas control which has been under water. 

 

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WARNING: 

If you do not follow these instructions exactly, a fire or explosion 

ma

 

y result causing property damage, personal injury or loss of life.

 

 

 

 

 

 

 

 

 

 

 

OPERATING INS

 

TRUCTIONS

 
1.  STOP! Read the safety information above on this labe . 

2.  Turn gas control knob clockwise            to OFF. Do not force. 

3.  Wait (5) minutes to clear out any gas. If you then sme  gas, STOP! Follow “B” in the 

safety information above on this label. If you don’t sm ll gas, go to the next step. 

4.  Turn gas knob counterclockwise            to PILOT. 

5.  Look inside the flame view which is located on the ex rnal casing. 

6.  Push in control knob all the way and hold in. Immedia ely press the piezo igniter to 

end of the stroke, then release it. Continue pressing a d releasing the piezo igniter 
with the control knob pressed down, until the pilot flame appears in the flame view. 
Once the pilot flame is lit, hold the control knob in fo

bout one (1) minute. 

7.  Release knob and it will pop back up. Pilot should remain lit. If it goes out, repeat 

steps 2. trough 6. . 

- If knob does not pop up when released, stop and tu

 the gas tap installed on the 

gas supply line to the CLOSED position. Immediately call your service agency or gas 
supplier. 

- If the pilot will not stay lit after several tries, turn the gas control knob to OFF and 
call your service technician or gas supplier. 

8.  Turn the control knob counterclockwise            to the desired setting between HI and 

LO. The main burner flame will appear. 

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TO TURN OFF GAS  O APPLIANCE

 

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1.  Turn the control knob clockwise              to OFF positi n. Do not try to switch from HI to OFF directly. Do not 

force. 

2.  Turn the gas tap installed on the gas supply to the CL SED position. 

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Summary of Contents for 743511

Page 1: ...losion may result causing property damage personal injury or loss of life Williams Furnace Co 250 West Laurel Street Colton CA 92324 U S A MODEL Natural Gas Only 0743512 MODEL Propane Gas Only 0743511...

Page 2: ...to local codes or in the absence of local codes the installation must conform to the National Fuel Gas Code ANSI Z223 1 NFPA 54 Natural Gas and Propane Installation Code CSA B149 1 Mobile Manufacture...

Page 3: ...ce technician to inspect the furnace and to replace any part of the control system and any gas control which has been under water Safety Information for Users of LP Gas Propane LP Gas is a flammable g...

Page 4: ...iff test of the LP Gas is a good safety measure under any condition If at any time you do not smell the LP Gas odorant and you should assume you have a leak Then take the same immediate action recomme...

Page 5: ...as equipment in residential garages must be installed so that all burners and burner ignition devices are located not less than 18 inches 460 mm above the floor Such equipment shall be located or prot...

Page 6: ...m 3 As specified in CGA B149 installation codes 1991 F Clearance to outside corner 12 inches 30 cm minimum Note Local codes or regulations may require different clearances G Clearance to inside corner...

Page 7: ...is horizontal 6 Remove the casing from the furnace body unscrewing the two mounting screws Figure 3 7 Mount the largest tube diameter 4 inches 101 6 mm and the gasket on the unit frame with the screws...

Page 8: ...Each furnace should have its own manual gas cock A manual main gas cock should be located in the vicinity of the unit Where none exists or where its size or location is not adequate contact your local...

Page 9: ...h danger To prevent nuisance and operation of fire alarms ventilate the room for the first two hours of operation Checking the Gas Inlet Pressure The gas inlet pressure can be measured by connecting a...

Page 10: ...rty damage personal injury or loss of life OPERATING INSTRUCTIONS 1 STOP Read the safety information above on this labe 2 Turn gas control knob clockwise to OFF Do not force 3 Wait 5 minutes to clear...

Page 11: ...nnect the test gauge and tighten firmly the screw of the gauge connection then check for gas leaks from it The HI and LO pressures must be adjusted in the way explained above Never try to adjust them...

Page 12: ...06065 Sparking Candle Part Number JGLL064 Nozzle Natural Gas Part Number J12160880 Nozzle LPG Piezo Electric Button Part Number JPZO000 Thermocouple Part Number JTRM000D Burner Part Number J90021028 P...

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