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Safety Rules and General Warnings 

DO NOT OPERATE THIS FURNACE WITHOUT FRONT PANEL INSTALLED 

 

Due  to  high  temperatures,  the  furnace  should  be 
located  out  of  traffic  and  away  from  any 
combustible  materials  such  as  furniture  and 
draperies. 

 

Children  and  adults  should  be  alerted  to  the 
hazards  of  high  surface  temperatures  and  should 
stay away to avoid burns or clothing ignition. 

 

Young  children  should  be  carefully  supervised 
when they are in the same room as the furnace. 

 

Clothing  or  other  flammable  material  should  not  be 
placed on or near the furnace. 

 

Any safety screen or guard removed for servicing a 
furnace  must  be  replaced  prior  to  operating  the 
furnace. 

 

Keep burner and control compartment clean. 

 

The  outside  vent  cap  is  hot  while  furnace  is  in 
operation. 

 

Installation  and  repair  should  be  done  by  a 
QUALIFIED  SERVICE  TECHNICIAN.  The  furnace 
should  be  inspected  before  use  and  at  least 
annually by a qualified service technician. 

 

More frequent cleaning may be required due to excessive 
lint from carpeting, bedding materials, etc.  It is imperative 
that  control  compartments,  burners  and  circulating  air 
passageways of the furnace be kept clean. 

 

DO NOT put anything around the furnace that will obstruct 
the flow of combustion and ventilation air. 

 

DO keep the furnace area clear and free from combustible 
materials,  gasoline  and  other  flammable  vapours  and 
liquids. 

 

DO  examine  venting  system  periodically  and  replace 
damaged parts. 

 

DO  examine  burner  periodically.  Clean  and  replace 
damaged parts. 

 

DO  NOT  use  this  furnace  if  any  part  has  been  under 
water.    Immediately  call  a  qualified  service  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  gas  which  can  cause  fires  and  explosions.  In  its  natural  state,  propane  is  odourless  and 
colourless. You may not know all the following safety precautions which can protect both you and your family from an accident. 
Read them carefully now, then review them point by point with the members of your household.   Someday, when there may not 
be a minute to lose, everyone’s safety will depend on knowing exactly what to do. If, after reading the following information, you 
feel you still need more information, please contact your gas supplier. 

 

 

LP Gas Warning Odor 

If a gas leak happens, you should be able to smell the gas because of the odorant put in the LP Gas. 

That’s your signal to go into immediate action! 

 

 

Do not operate electric switches, light matches or use your phone.  Do not do anything that could ignite the gas. 

 

IMMEDIATELY get everyone out of the building, vehicle, trailer or area.  

 

Close all gas tank or cylinder supply valves. 

 

LP Gas is heavier than air and may settle in low areas such as basements. When you have reason to suspect a gas leak, 
keep out of basements and other low areas. Stay out until firefighters declare them to be safe. 

 

Use  your neighbour’s phone and call a trained LP Gas service technician and the fire department. Even though  you may 
not continue to smell gas, do not turn on the gas again.  Do not re-enter the building, vehicle, trailer or area. 

 

Have  the  service  technician  or  fire  department  air  out  the  area  before  you  return.  A  properly  trained  LP  Gas  service 
technician must repair the leak, check and relight the gas furnace for you. 

 

 

 

Summary of Contents for 1773511

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 1773512 MODEL Propane Gas Only 1773511...

Page 2: ...d repair should be done by a QUALIFIED SERVICE TECHNICIAN The installation must conform to local codes or in the absence of local codes the installation must conform to the National Fuel Gas Code ANSI...

Page 3: ...qualified service 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 i...

Page 4: ...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 recommended when you do smell...

Page 5: ...in Canada with CAN CSA C22 2 No 3 Installations in the State of Massachusetts All installations in the State of Massachusetts must use the following requirements when installing maintaining or operat...

Page 6: ...e of the terminal 18 inches 46 cm minimum E Clearance to unventilated soffit 12 inches 30 cm minimum clearance to vinyl soffit 36 inches 90 cm minimum F Clearance to outside corner 12 inches 30 cm min...

Page 7: ...be length wall thickness 1 5 16 inches 7 9 mm 4 Drill the mounting holes A 5 holes in the wall If possible use self tapping screws drill 1 8 inch diameter holes If self tapping screws cannot be used d...

Page 8: ...end Mark the location of the three holes for the screw anchors Figure 7 The flue grid must be vertical 12 Remove the vent cap and drill all the necessary holes diameter inch for the screw fittings pro...

Page 9: ...r inserting the screwdriver as indicated by the arrow 3 Remove the nozzle from the support and replace it with the correct one Reassemble the nozzle assembly and the screw indicated at point 1 Set the...

Page 10: ...l Gas Code that a drip line be installed near the gas inlet This should consist of a vertical length of pipe tee connected into the gas line that is capped on the bottom in which condensation and fore...

Page 11: ...the furnace Checking the Gas Manifold Pressure The gas manifold pressure can be measured by connecting a test gauge to the connection provided on the gas valve Figure 8 B The furnace comes set from t...

Page 12: ...otor Moteur du Ventilateur de Combustion SF Flame View Lamp green lamp Lampe de Presence de Flamme Verte SB Lock Out Lamp red lamp Lampe de Verrouillage Rouge TR Current Transformer 120 24 V Transform...

Page 13: ...ond attempt is STOP Read the safety information above on this label Set the thermostat to the lowest setting by turning it counterclockwise This appliance is equipped with an ignition device that auto...

Page 14: ...needs to be refilled after 4 5 days NOTE The use of water low in limestone or distilled is advisable in order to prevent any possible calcareous sedimentation that may be difficult to remove Anticalca...

Page 15: ...nnect the test gauge and firmly tighten the screw of the gauge connection then check for gas leaks from it The HI and LO pressures must be adjusted as instructed above Never adjust them independently...

Page 16: ...s 4 Check air flow switch 5 Clean and check exhaust flue pipe and air intake pipe 6 Check for gas leaks on all connections 7 Check and adjust gas pressure Check red O Ring Gasket NRNG003 If it is dama...

Page 17: ...tion Programmable day blocks 1 2 3 4 5 Monday Friday 1 2 3 4 5 6 Monday Saturday 1 2 3 4 5 6 7 Monday Sunday 6 7 Saturday Sunday KEY A On Off Switch Pos I The appliance is controlled by the room therm...

Page 18: ...proceeds one day at a time Number 1 stands for Monday number 2 stands for Tuesday etc C To set the time press the Hour Selector button h Figure 10 E to set the hour and the Minutes Selector button m F...

Page 19: ...button and select the program to be cancelled B Simultaneously press the Program Selector Figure 10 C and SKIP button Figure 10 G for at least 2 seconds The selected program will be cancelled C Verifi...

Page 20: ...ximum velocity Troubleshooting Step 2 Point 3 Z1 Z1 is down closed but there is no voltage on the fan motor M Check wiring and connections If everything is okay replace the switch Point 4 Z2 Z2 is dow...

Page 21: ...temperature is cold replace the switch Point 9 M1 M1 is open and fan thermostat temperature is lower than 140 F Check wiring connections gas pressure and fan motor Clean fan blades and air grids If e...

Page 22: ...control box Point 16 RP8 No flame sensing Check flame sensor wiring and connections SCheck gas pressure and exhaust flue pipe If everything is okay replace the flame control box Point 17 EV2 No voltag...

Page 23: ...inter Switch Part Number P332630 Z8 Z3 Timer and Manual Program Mode Switch Part Number P332629 Z2 Hi Lo Flame and Fan Speed Switch Part Number P332631 SF SB Green and Red Lamps Part Number P332538 P3...

Page 24: ...n Blower Motor Part Number P332514 M1 Overheat Thermostat Part Number P332565 M2 Fan Thermostat Part Number P332496 Fan Blades 4 pieces Part Number P332572 Left P332638 Right M Fan Motor 2 Pieces Part...

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