Owner’s Manual Save this manual for future reference. Forsaire Counterflow Direct-Vent Gas Wall Furnaces Model Numbers: 4007332; 4007732; 5507332; 6007732 FOR USE WITH NATURAL GAS ONLY Model Numbers: 4007331; 4007731; 5507331; 6007731 FOR USE WITH LIQUEFIED PETROLEUM (L.P.) GAS ONLY READ THIS OWNER’S MANUAL CAREFULLY BEFORE YOU INSTALL YOUR NEW WILLIAMS WALL FURNACE.
Warranty & Installation Record – 2 Warranty The manufacturer, Williams Comfort Products, warrants this wall furnace or heater to the original purchaser under the following conditions: LIMITED ONE-YEAR WARRANTY 1. Any part thereof which proves to be defective in material or workmanship within one year from date of original purchase for use will be replaced at the Manufacturer’s option, FOB to its factory. 2.
Contents Your Williams Warranty .................................................................2 Installation Record .........................................................................2 Table of Contents ..........................................................................3 Safety Rules ..................................................................................4 Introduction................................................................................ 5-6 Basic Description ............
Safety Rules 9. WARNING: Read these rules and the instructions carefully. Failure to follow these rules and instructions could cause a malfunction of the furnace. This could result in death, serious bodily injury and/or property damage. INSTALLATION MUST CONFORM TO LOCAL CODES. IN THE ABSENCE OF LOCAL CODES, INSTALLATION MUST CONFORM TO THE NATIONAL FUEL GAS CODE, ANSI Z223.1.
Introduction – 5 Introduction A Word from the Manufacturer Dear Customer, To set up our furnace assembly procedures, several hundred quality assurance, safety audit and design performance tests have been conducted according to the standards provided by the American National Standards Institute, the Department of Energy and our certification agency – (CSA) Canadian Standards Association. This was done to assure you of receiving the best value and most reliable appliance of its type available today.
Introduction Optional Accessories SIDE OUTLET GRILLE KIT 6701 Let’s you route some heated air into a second room. Mounts on the side wall of second room and must be within 10 inches of wall furnace. See pages 7 and 10. DIFFUSER GRILLE KITS 6703 & 6704 Let’s you route some heated air in a two-way direction. Kit 6704 for one-way direction. SIDE GRILLE KIT 6702 Let’s you route some heated air to side of furnace in the same room. See pages 7 and 10.
Installing Your Furnace 1. Locate the furnace properly within the space to be heated. The following steps are needed for proper installation and safe operation of your furnace. If you have any doubts as to any requirements, always consult your local Heating or Plumbing lnspector, Building Department or Gas Utility Company regarding regulations, codes, or ordinances which apply to the installation of a vented wall furnace. Obtain professional help where needed. 2.
Installing Your Furnace 11. Be sure to provide adequate clearance and service access. The front of the furnace must face the open room. FIGURE 4 VENT CAP 12. Choose a location for the thermostat about 5-feet above the floor on an inside wall.
Installing Your Furnace Recessed Mount Installation FIND THE STUDS Use a stud locator or small finishing nails. Repeatedly drive and remove a nail into the wall in the area of the stud until you find it. Then find one side. Leave the nail there. Drive another nail just on the other side of the same stud. FIGURE 8 Wall Opening for Recessed Mount Inside edge of the other stud should be about 14½-inches from the one found. Drive finishing nail on inside edge of this stud.
Installing Your Furnace FIGURE 10 Gas & Electrical Openings GAS AND ELECTRICAL SUPPLY OPENINGS Holes must be drilled for the gas line and electrical supply. Holes must be located from each side of furnace as shown in Fig. 10. Decide whether the gas line will come through the floor or wall. Drill a 1½ -inch hole in wall or floor as needed. Gas line can be run at this time or done after furnace is mounted, see section GAS SUPPLY AND PIPING, on Page 18.
Installing Your Furnace Surface Mount Installation FIND THE STUDS ROUGH-IN OPTIONAL SIDE OUTLET NO. 6701 1. Find two studs at spot where furnace is to be placed. Use a stud indicator or small finishing nails. Repeatedly drive and remove a nail into the wall in the area of the stud until you find it. Then find one side. Leave the nail there. Drive another nail just on the other side of the same stud. Install plaster ground as shown in Figs. 12 & 13.
Installing Your Furnace MOUNTING OPTIONAL SIDE OUTLET GRILLE KIT NO. 6701 Refer to Fig. 14. 1. Before setting furnace into position, cut 5"x 7" rectangular opening in furnace outer casing where marked. See Page 10, Fig. 10. 2. Place the outer boot against casing with inner flanges exactly on edges of cut hole, mark screw location, remove boot and drill #33 holes for the sheet metal screws. 3. Remove the knockout plate and knockouts for screws from the inner liner. 4.
Installing Your Furnace Thermostat Installation 1. If an old thermostat is being replaced and is in a satisfactory location and the wiring appears to be in good condition, use existing wiring. If in doubt, use new wire. FIGURE 16 Route Thermostat Cable 2. If a new location is chosen or if this is a new installation, thermostat cable must first be run to the location selected. All wiring must agree with local codes and ordinances.
Installing Your Furnace Vent Installation WARNING: DANGER OF PROPERY DAMAGE, BODILY INJURY OR DEATH. Proper vent installation is critical to the safe operation of the furnace. Therefore, carefully read and follow all the instructions given in this section. The following instructions are for either surface or recess mounted wall furnace. USE ONLY THE VENT ASSEMBLY SUPPLIED.
Installing Your Furnace FIGURE 19 Vent Installation NOTE: Each tube must overlap the collars of the vent cap a minimum of 1¼-inches, which is obtained when tubes are cut correctly as previously described. 5507332 6007732 5507332 6007731 Trim To conceal the space between the furnace and wall, use 4701 Trip Strip Package (not furnished with furnace), ¾-inch round or other wood trim. TRIM COVER Place the trim cover on top of the furnace. See Page 16, Fig. 20.
Installing Your Furnace FIGURE 20 Furnace Item Mounting Your Furnace To obtain adequate clearance for fastening the furnace or to install gas supply fittings, it may be necessary to remove the burner and control assembly as follows: CAUTION: Be careful not to damage burner pan gasket when removing burner and control assembly. 1. Lay the furnace on its back for the following steps. NOTE: Attach vent tubes BEFORE mounting the furnace. See Pages 14 & 15. 2.
Installing Your Furnace FASTEN FURNACE TOP (SURFACE MOUNTING) Fasten the furnace top to wall using two (2) metal anchors (packed in plastic bag with thermostat) by placing them over the back flange of the furnace top and screwing them to the wall. Refer to Fig. 21.
Installing Your Furnace Gas Supply and Piping The gas control valve within the furnace, is shipped with a seal over the gas inlet tapping. Do not remove seal until ready to connect piping. FIGURE 24 WARNING: Danger of property damage, bodily injury or death. Make sure the furnace is equipped to operate on the type of gas available. Models designated as natural gas are to be used with natural gas only. Furnace designated for use with liquefied petroleum (L.P.
Installing Your Furnace The following rules apply: 1. Use new, properly reamed pipe free from metal chips and debris such as steel or black iron pipe. Use fittings approved by local codes. 2. Do not thread pipe too far. Valve distortion or malfunction may result from excess pipe within control. Apply moderate amount of good quality dope to the pipe threads only, leaving 2 end threads bare. If LP Gas installation, use compound resistant to the action of liquefied petroleum gases. 3. Use ground joint unions.
Installing Your Furnace GROUNDING The appliance when installed must be electrically grounded in accordance with local codes and ordinances or in their absence, with National Electrical Code (ANSI/NFPA 70) or Canadian Electrical Code (CSA C22.1) if an external electrical source is utilized. This appliance is equipped with three-prong (grounding) plug for your protection against shock hazard and should be plugged directly into a properly grounded three-prong receptacle.
Installing Your Furnace Start-Up Procedure Start the furnace using the procedures “OPERATING YOUR FURNACE”. in the section WARNING: Danger of bodily injury or death. Liquefied petroleum gas (L.P. Gas) is heavier than air and it will settle in any low area, including open depressions and it will remain there unless the area is ventilated. Never attempt to start-up the unit before thoroughly ventilating area. Check the furnace operation as outlined in the following instructions.
Operating Your Furnace Operating Your Furnace STANDING PILOT MODELS 4007732; 6007732; 4007731; 6007731 NOTE: For models equipped with WILLIAMS gas valve P322041 or P322042 refer to this page and Page 23 for "SAFETY & LIGHTING INSTRUCTION" and "TURN GAS OFF TO APPLIANCE." For models equipped with WILLIAMS gas valve P321704 or P321705 refer to this page and Page 24 for "SAFETY & LIGHTING INSTRUCTIONS" and "TURN GAS OFF TO APPLIANCE.'' (All other models refer to page 25, 26 & 27.
Care – 23 Operating Your Furnace FOR YOUR SAFETY, READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these Instructions exactly. B. BEFORE LIGHTING smell 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.
Operating Your Furnace FOR YOUR SAFETY, READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these Instructions exactly. B. BEFORE LIGHTING smell 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.
Care – 25 Operating Your Furnace WARNING: DUE TO HIGH SURFACE TEMPERATURES KEEP CHILDREN, CLOTHING, FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM THE FURNACE. ELECTRONIC IGNITION MODELS 4007332; 5507332; 4007331; 5507331 NOTE: For models equipped with WILLIAMS gas valve P322043 or P322044 refer to this page and Page 26 for "SAFETY & LIGHTING INSTRUCTION" and "TURN GAS OFF TO APPLIANCE.
Operating Your Furnace FOR YOUR SAFETY, READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. B. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand. BEFORE LIGHTING smell 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.
Care – 27 Operating Your Furnace FOR YOUR SAFETY, READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. B. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the pilot by hand. BEFORE LIGHTING smell around the appliance area for gas.
Caring for Your Furnace How To Care For Your Furnace WARNING: Danger of bodily injury or death. Turn off electric power supply at the disconnect switch, fuse box or service panel before removing any doors or access or service panels from the unit. CABINET FINISH Clean the cabinet with damp rag. Never use abrasive cleaners. Cabinets are finished in a heat resistant powder coat finish - DO NOT refinish with wall paint. The pilot flame should surround the thermocouple tip 5/8 to 1/2inch.
Care – 29 Caring for Your Furnace How To Care For Your Furnace BURNER CLEANING Check burner. If cleaning is required, contact a qualified service technician to clean and service the burner. FIGURE 30 Pilot Flame & Spark Gap SPARK GAP 1/8" WARNING: Danger of bodily injury or death. Make sure electric power and gas supply are off before removing panels or doors. 3/8" to 1/2" Disconnect the gas line inside the cabinet.
Wiring Diagrams Wiring Diagrams MODELS - 4007332 /4007331 FOR 40M Btu/hr. FAN TYPE VENTED WALL FURNACE WITH INTERMITTENT IGNITION CONTROL SYSTEM 30 MODELS - 5507332 /5507331 FOR 55M Btu/hr.
Accessories– 31 Wiring Diagrams MODELS - 4007732/4007731 FOR 40M Btu/hr. FAN TYPE VENTED WALL FURNACE WITH STANDING PILOT CONTROL SYSTEM MODELS - 6007732/6007731 FOR 60M Btu/hr.
Replacements Parts 32
Replacements Parts 35
Replacements Parts REPLACEMENT PARTS LIST FOR MODELS 4007332; 4007732; 4007331 and 4007731 Ref. Number 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 PART NO.
Replacements Parts REPLACEMENT PARTS LIST FOR MODELS 4007332; 4007732; 4007331 and 4007731 Ref. Number Description 4007332 PART NO. FOR MODEL 4007732 4007331 35 36 4007731 Manifold Manifold Gasket P323653 P151700 P323653 P151700 P323653 P151700 P323653 P151700 37 Orifice Fitting, Specify Model & Gas P090532 P090532 P090548 P090548 38 50mm Burner P323648 P323648 P323648 P323648 39 Burner Pan 11B133 11B133 11B133 11B133 Valve, Williams Nat. Valve, Williams L.P.G.
Replacements Parts 39 36
Replacements Parts 6007732 and 6007731 41
Replacements Parts 40 6007732 & 6007731 38
Replacements Parts REPLACEMENT PARTS LIST FOR MODELS 5507332 and 5507331 PART NO. FOR MODEL Ref. Number Description 1 2 3 4 6 7 9 10 11 12 13 14 15 16 17 18 5507332 5507331 Outer Casing with Air Pan Heating Element Element Tube Inner Liner Deflector Baffle Handle Fan Shroud 11C42-1 11C66 11C37 7B79 11C63 11B86 11C42-1 11C66 11C37 7B79 11C63 11B86 Top Front Panel Center Front Panel Bottom Front Panel Element Face Cover Limit Switch Selector Switch Fan Switch Motor Motor Support (2 Req.
Replacements Parts REPLACEMENT PARTS LIST FOR MODELS 5507332, 6007732, 5507331 and 6007731 PART NO. FOR MODEL Ref.
Replacements Parts REPLACEMENT PARTS LIST FOR MODELS 6007732 and 6007731 PART NO. FOR MODEL Ref. Number Description 6007732 6007731 1 2 3 4 5 6 Outer Casing with Air Pan Air Pan Tunnel Gasket Inner Liner Heating Element Peep Hole Cover Burner Pan Gasket (2 Req.
Installations in the State of Massachusetts All installations in the State of Massachusetts must use the following requirements when installing, maintaining or operating direct-vent propane or natural gas-fired space heaters. For direct-vent appliances, mechanical-vent heating appliances or domestic hot water equipment, where the bottom of the vent terminal and the air intake is installed below four feet above grade the following requirements must be satisfied: 1.
Forsaire Hardwire Accessory - 9940 Installation Instructions This Kit is for use with Models: 3508331; 3508332; 3508731; 3508732; 4007331; 4007332; 4007731; 4007732; 5008731; 5008732; 5507331; 5507332; 5508331; 5508332; 6008531; 6008532; 6007731; 6007732; 6508731; 6508732 WARNING: Danger of bodily injury. Turn off electric power supply at disconnect switch, fuse box or service panel before working on the furnace.
Troubleshooting TROUBLESHOOTING CHART FOR Models FOR MODELS: 4007732; 6007732; 4007731; 6007731 *Also applicable to Models equipped with an electric intermittent pilot system. (Continued on next page) SYMPTOM POSSIBLE CAUSE A. Thermocouple producing insufficient millivolts. Check pilot flame – it must impinge on the thermocouple. The pilot flame may be low or blowing (high) causing pilot to drop out. The pilot orifice or aerating hole may be plugged (check for spiders, webs or other organic material).
Care – 45 Troubleshooting SYMPTOM 4. Burner comes "ON", blower comes "ON", but cycles "ON" and "OFF" while burner remains "ON". 5. Burner comes "ON", blower comes "ON", but burner cycles "OFF" and "ON" with blower "ON". 6. Furnace operates but turns "OFF" before room temperature is attained. 7. Furnace operates but will not shut "OFF" when room temperature is attained. 8. Abnormal operation. 9. Burner comes “ON” but goes “OFF” after operating for no apparent reason. POSSIBLE CAUSE CORRECTIVE ACTION A.
Troubleshooting TROUBLESHOOTING CHART FOR MODELS FOR MODELS: 4007332; 5507332; 4007331; 5507331 NOTE: Before troubleshooting the intermittent pilot system, be sure thermostat is turned to highest setting, gas shut-off valve and gas valve knob are in the ON position, and electric power is turned ON the furnace. Follow all steps in sequence. A volt-ohm meter will be needed to satisfactorily determine if any components are malfunctioning. SYMPTOM 1. No spark – no pilot gas. 2. Spark – but no pilot gas.
Care – 47 Troubleshooting SYMPTOM POSSIBLE CAUSE Low pilot flame. NOTE: Wait at least 90 seconds after pilot lights before doing the check out procedures for problem number 4. With the thermostat ON, be sure that the pilot and sensor are properly aligned so that the pilot flame impinges the top 5/8 inch of the sensor. Be sure that the sensor is pushed all the way into the pilot bracket. Adjust the pilot flame with pilot adjustment screw, if necessary.
Hints and Information Service Hints If your furnace fails to work correctly, you may avoid the inconvenience and cost of a service call by checking the troubleshooting section on pages 44 thru 47 before you call for service. WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity or this or any other appliance.
