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Owner’s Manual                                

S

ave this manual for future reference. 

 

 

 

Williams Furnace Co.   

   250 West Laurel Street   

   Colton, California 92324 U.S.A. 

 

 

 

 

 

Magnum Forsaire 

Counterflow Top-Vent Gas 

Wall Furnace 

 

Model Numbers:  
6008532; 6038532; 6058532  

FOR USE WITH NATURAL GAS ONLY 

Model Numbers:  
6008531; 6038531; 6058531  

FOR USE WITH PROPANE GAS  ONLY

                                                                                                

                                                                                                                                                                                                
READ THIS OWNER

’S MANUAL  CAREFULLY BEFORE YOU 

INSTALL YOUR  NEW WILLIAMS  WALL FURNACE.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WARNING: 

  Improper  installation,  adjustment, 

alteration,  service or maintenance can cause injury 
or  property  damage.  Refer  to  this  manual.    For 
assistance  or  for  additional  information  consult  a 
qualified  installer,  service  agency  or  the  gas 
supplier. 

 
 
 
 
 
 

  Do not  store or use  gasoline or other 

     flammable  vapors and liquids in the  vicinity 

of this or any  other  appliance.

 

 

 

WHAT TO DO IF YOU  SMELL GAS:

 

   Open  all windows. 

   Do not  try  to light any  appliance. 

   Do not  touch  any  electrical  switch;  do not 

             use any  phone  or cell phone  in your 
             building. 

   Extinguish  any  open  flame. 

   Immediately  call your  gas supplier from 

             

a neighbor’s phone.  Follow the gas 

             

supplier’s instructions. 

   If  you  cannot  reach the  gas supplier, 

             call the  fire department.

 

 

  Installation  and service must  be performed 

     by  a qualified installer,  service agency  or 
     the  gas supplier. 
 

 
 
 
 
 
 
 
 
 
 

WARNING:

  If  the  information  in  these 

instructions  is  not  followed  exactly,  a  fire  or 
explosion  may  result  causing  property 
damage, personal  injury  or loss of life. 

Summary of Contents for 6008531

Page 1: ...a qualified installer service agency or the gas supplier Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS O...

Page 2: ...ov er claims which do not inv olv e def ective workmanship or materials DUTIES OF THE CONSUMER 1 The heating equipment must be installed by a qualif ied installer and operated in accordance with the i...

Page 3: ...tallation 21 23 Start Up Procedure 24 Operating Your Furnace 25 26 How To Care For Your Furnace 27 28 Furnace Technical Information 28 TROUBLESHOOTING CHART 29 30 Wiring Diagrams 30 Repair Parts 31 32...

Page 4: ...or death 8 Install the furnace vent directly to the outdoors so that harmful combustible flue gases will not collect inside the building Follow the venting instructions for your type of installation e...

Page 5: ...p forces air down along the front back and sides of the heat exchanger where it is discharged into the room The furnace cabinet is also constructed ofheavy gauge steel and has a neutral beige color en...

Page 6: ...enclose the vent pipe from the top of the surface to the ceiling SIDE OUTLET GRILLE KIT 6702 as shown on Page 22 Fig 31 Allows you to direct heated air from the side of furnace into the same room NOT...

Page 7: ...11 Recessed Mounting Place the furnace near the center of the space to be heated for good air circulation Do not put it behind a door or draperies Do not instatl the furnace in a closet alcove of smal...

Page 8: ...e heated area The high cost of energy for home heating has brought about new materials and methods used to constructor remodel most current homes The improved construction and additional insulation ha...

Page 9: ...special provisions are made such as ventilation grilles installed between connecting rooms Fig 6 page 10 shows the minimum area in square feet based on 8 foot ceiling heights required for different B...

Page 10: ...00 square inches or 1 square inch per 1000 Btuh combined input of appliances in one room if combined input exceeds 100 000 Btuh WARNING Danger of property damage bodily injury or loss of life The adjo...

Page 11: ...about 14 inches from the one found Drive finishing nails on the inside of this stud Draw wall cutout to required size as shown on Page 13 Fig 13 If wall studs are not on 16 inch centers see CLOSE OFF...

Page 12: ...t to damage any furnace components while making any alternate hole Locate and drill one 1 1 1 2 inch hole at selected locations as shown on Page 12 Fig 11 and Page 13 Fig 13 or Page 14 Fig 14 Gas line...

Page 13: ...nd electrical connections CUT CEILING OPENING Mark off and cut 3 1 2 x 12 inch rectangular hole in ceiling centered between wall studs The back edge of the opening should be about1 8 inch from the wal...

Page 14: ...f Refer to typical venting system as shown on Page 16 Fig 18 Type B W gas vent shall extend from the header plate of the vented wall furnace to a point above the highest ceiling plate within a stud sp...

Page 15: ...ailed between ends must be bent at 90 degrees INSTALL SURFACE VENT SURFACE MOUNT NOTE For surface mounting itwill be helpful to complete the gas piping supply to the furnace before installing the vent...

Page 16: ...y attic insulation to allow the free circulation of air around oval vent piping Mounting Your Furnace To obtain adequate clearance for fastening furnace or to install gas supplyfittings it may be nece...

Page 17: ...INATE AIR LEAKS FASTEN FURNACE BOTTOM SURFACE AND RECESSED MOUNT NOTE Fasteners are not furnished because of different requirements of various types of wall construction Fasten furnace to floor throug...

Page 18: ...olumn Gas pressure and input to the burners must not exceed the rated inputand pressure shown on the rating plate On Natural Gas the manifold pressure should be 4 inches water column The manifold pres...

Page 19: ...s may damage the gas valve and cause over firing which may result in heat exchanger failure Liquid petroleum L P Gas is heavier than air and it will settle in any low area including open depressions a...

Page 20: ...r obstructions in the partition Then drill a 1 2 inch hole through wall at the selected location for thermostat 5 From the attic feed the thermostatcable or a stiff wire through wall until even with t...

Page 21: ...used the furnace casing must be a minimum of 12 inches from an adjacent side wall as shown on Page 8 Fig 3D CUT CASING OPENING S Before setting the furnace into position cut a 5x7 inch rectangular ope...

Page 22: ...ed REAR OUTLET ONLY Place Inner Boot in position and fasten with screws along the top and bottom edges only Place Damper Assemblyinside Inner Boot and fasten with one 1 screw on each side Thread chain...

Page 23: ...IT MODEL 6704 Follow instructions for 2 WAY FRONT DIFFUSING GRILLE 6703 except furnace clearance to an adjacent wall must be 3 4 inch minimum See Page 8 Fig 3A TRIM STRIP KIT MODEL 4701 When desired o...

Page 24: ...ctory sized orifices If L P gas having a different heating value is supplied orifices must be changed by a qualified service technician before the furnace is operated CHECK THE MANIFOLD GAS PRESSURE A...

Page 25: ...limit switch shuts down the main burner to prevent overheating the furnace cabinet 4 A vent safety shutoff device shuts down the main burner to protect againstimproper venting of combustion products T...

Page 26: ...f all electric power to the appliance 4 Remove control access panel 5 Turn gas control knob clockwise to OFF 6 Wait five 5 minutes to clear out any gas then smell for gas including near the floor If y...

Page 27: ...cabinet door and front panel Clean any lint or dirt from fan blades fan motor and exposed air passages Use a brush Put 5 drops of SAE 20 oil in each of the two cups or oil tubes on the fan motor See F...

Page 28: ...ESULT IN A YELLOW FLAME WHICH CAN PRODUCE CARBON MONOXIDE AND SOOT THIS CONDITION IF ALLOWED TO DEVELOP CAN LEAD TO BODILY INJURY INCLUDING DEATH IT IS IMPERATIVE THAT THE BURNER S BE KEPT GLEAN TO RE...

Page 29: ...orifice plugged Clean or replace orifice if okay and still no gas flow to main burners proceed to Step F F Gas valve defective Replace defective gas valve 3 Burner comes ON but goes OFF before blow e...

Page 30: ...loose on motor shaft Blow er may be rubbing on fan shroud Motor may need oiling Correct as needed B Expansion noise ticking Check installation casing may be tw isted or not level at time of installati...

Page 31: ...Replacement Parts Accessories 31 6008531 6008532 6008531 6008532 34 35...

Page 32: ...Replacements Parts 32...

Page 33: ...22 Motor P321601 P321601 23 Motor Support 7B46 7B46 24 Vibration Isolator 4 required P022800 P022800 25 Drafthood Faceplate 7C85 7C85 26 Vent Safety Switch P321958 P321958 27 Drafthood 7B165 7B165 28...

Page 34: ...ouple P321838 P321838 58 Flame Sensor 59 Pilot P179700 P179800 60 Burner Spacer 2 Required P018100 P018100 61 Burner Cast Iron P025600 P025600 62 Wire Assembly Vent Safety P322048 P322048A P322048 P32...

Page 35: ...onnect the cord a t the receptacle connector located at the base of the furnace and remove the cord completely from the furnace Following the wiring diagram below make all the necessary wiring connect...

Page 36: ...exactly a fire or explosion may result causing property damage personal injury or loss of life Williams Furnace Company 250 West Laurel Street Colton CA 92324 909 825 0993 FAX 909 824 8009 www wfc fc...

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