Williams 2509621, Owner'S Manual

Page 1: ...on consult a qualified installer service agency or the gas supplier 50 000 Btu hr Model 25 000 and 35 000 Btu hr Model Do not store or use gasoline or other flammable vapors and liquids in the vicinit...

Page 2: ...do not involve defective workmanship or materials DUTIES OF THE CONSUMER 1 The heating equipment must be installed by a qualified installer and operated in accordance with the installation and homeown...

Page 3: ...Installation 19 Start Up Procedure 20 21 Stay Safe 22 23 Operating Your Furnace 22 23 How to Care for Your Furnace 24 25 Installing Your Blower Accessory 25 26 Blower Accessory Replacement Parts 27 28...

Page 4: ...servicing this appliance must be replaced prior to operating the appliance to avoid property damage bodily injury or death 8 Vent the furnace directly to the outdoors so that harmful gases will not co...

Page 5: ...e Vertical venting materials See page 14 Figure 8 Pipe Joint Compound resistant to L P Gases Electrical wiring supplies as needed Minimum wire size is 14 gauge copper Basic Tools Needed Hand drill or...

Page 6: ...l the furnace where it could be isolated by closing doors to the heated space Do not locate the furnace where a door could swing over the front panel or where circulation could be retarded by furnitur...

Page 7: ...the house until fresh air may be sucked back into the house down a furnace flue or fireplace chimney Carbon monoxide can be the result Carbon monoxide CO is a colorless odorless gas produced when fuel...

Page 8: ...ans water heaters gas and electric 3 Turn on all vented gas appliances i e heating equipment includes any room heaters water heaters 4 Wait ten 10 minutes for drafts to settle 5 Check for draft hood s...

Page 9: ...NING Danger of property damage bodily injury or death The adjoining unconfined space must have adequate air infiltration B Air From Outdoors If confined space does not adjoin an unconfined space then...

Page 10: ...high measured from the top of the floor plate Figure 5 All corners must be square INSTALLATION OF REAR OUTLET REGISTER The optional rear outlet register may be installed when the furnace is recessed i...

Page 11: ...Hold down plate is not included HEADER PLATE VENT SUPPORT Measure upward 62 inches from the top of the floor plate Place a mark on each stud at this distance Figure 5 Place the header plate between t...

Page 12: ...with the furnace to the side rails using four 4 8 screws Flanges of the header plate go against the wall Figure A 3 Install extension side rails as shown in Figure A by telescoping them inside the low...

Page 13: ...Installing Your Furnace Surface Mount Installation continued FIGURE B FIGURE C FIGURE D Vent Installed Front panel installed...

Page 14: ...urnace rests INSTALL FURNACE VENT Attach a 4 foot length of oval double wall vent pipe through the plate spacers to the hold down plate Push the vent pipe into the hold down plate until it is complete...

Page 15: ...TIONAL If a Rear Outlet Register Accessory is used the following procedure must be completed before placing furnace body into wall recess Figure 11 Attach speed nuts to outer shield and remove knockou...

Page 16: ...ver the gas inlet tapping Do not remove the seal until ready to connect the piping GAS SUPPLY For L P gas the minimum inlet gas supply pressure for the purpose of input adjustment is 11 inches water c...

Page 17: ...only Leave the two end threads bare Figure 15 L P gas installations require a dope compound resistant to the action of liquefied petroleum gases Excess dope going into the valve may cause it malfuncti...

Page 18: ...igher pressures may damage the gas valve and cause over firing which may result in component s failure L P gas is heavier than air and may settle in any low area including open depressions and it will...

Page 19: ...tions packed in the thermostat carton if you have any doubt about the above procedures WALL MOUNTED THERMOSTAT INSTALLATION 1 To remove the thermostat cover squeeze both sides and lift 2 Connect the t...

Page 20: ...GAS PRESSURE A tapped opening is provided in the gas valve to facilitate measuring manifold gas pressure A water column manometer having a scale range from 0 to 12 inches of water column should be use...

Page 21: ...rticles burn in the flame This is normal No burner adjustment is provided or is necessary Figure 20 NORMAL APPEARANCE Natural Gas 1 Inner cone blue in color 3 8 to 5 8 inches above ports 2 Secondary i...

Page 22: ...Read the safety information above 2 Set the thermostat to lowest setting 3 If applicable turn off all electric power to the appliance 4 Open control access panel 5 Push in gas control knob slightly a...

Page 23: ...lit call your local gas utility or a qualified service person If furnace is equipped with a manual spark igniter follow these steps 1 Review the pilot lighting instructions 2 When instructed to Light...

Page 24: ...nd exposed air passages BURNER CLEANING If cleaning is required contact a qualified service technician to clean and service burner To remove burner s 1 Open burner compartment door 2 Shut off gas supp...

Page 25: ...unction box cover Remove the cover to gain access to the knockout located in the junction box 6 Locate the knockout and remove it using a hammer and screwdriver Use caution when handling sharp metal e...

Page 26: ...nstalling Your Blower Accessory 26 Blower Accessory 2901 and 2907 continued FIGURE D Wiring for Model 2907 FIGURE C Wiring for Model 2901 FIGURE A Install Electrical Outlet FIGURE B Install Blower Bod...

Page 27: ...Blower Accessory Replacement Parts Accessories 27...

Page 28: ...P321078 11 Strain Relief Bushing P012900 12 Fan Switch P323095 13 Screw 6 32 x 3 8 P029200 14 Motor P320905 15 Fan Blade P320907 16 Orifice Plate 9D12 1 17 Junction Box Cover 9B161 BLOWER ACCESSORY PA...

Page 29: ...all openings for the register 1 Measure and mark wall for opening as shown in Figure A Check the wall for any electrical wiring present before cutting the opening Reroute existing electrical if necess...

Page 30: ...orized Rear Outlet Accessory 30 Motorized Rear Outlet Register 6919 and 6920 continued FIGURE C Surfaced Mounted Installation FIGURE D Recessed Mounted Installation FIGURE F Wiring FIGURE E Surface Mo...

Page 31: ...Motorized Rear Outlet Replacement Parts Motorized Rear Outlet Models 6919 and 6920 and 6920...

Page 32: ...ief Bushing P500185 P500185 3 J Box Cover 9A427 9A427 4 Strain Relief Bushing P603108 P603108 5 Heat Sensor Switch P323079 P323079 6 Fan Switch P323080 P323080 7 Motor and Blower P323076 P323076 8 Mot...

Page 33: ...Furnace Replacement Parts Control Assembly 250 350 and 500 Series...

Page 34: ...Furnace Replacement Parts 34 Furnace Replacement Parts continued Cabinet and Body Parts 250 and 350 Series...

Page 35: ...Furnace Replacement Parts Furnace Replacement Parts continued Cabinet and Body Parts 500 Series...

Page 36: ...322276 P322276 P322155 P322155 10 Pilot Mounting Plate 9A409 9A409 REF NO DESCRIPTION 2509621 2539621 2559621 2509622 2539622 2559622 3509621 3539621 3559621 3509622 3539622 3559622 1 Face Panel 4915...

Page 37: ...or 2 Required 9B199 9B199 7 Header 5901 5901 8 Vent Limit Switch P321826 P321826 9 Draft Hood 2 Required 9C170 9C170 10 Non Vision Shield 9C157 9C157 11 Inner Shield Top 2 Required 9C158 9C158 12 Burn...

Page 38: ...nob to the ON b Set thermostat to a position calling for heat c Check clean or replace d Check connections at valve terminals If valve operates check thermostat wires e See 1a and 1c above f Replace g...

Page 39: ...venting d Use listed B W type vent pipe DO NOT use transite or any other type of ceramic pipe for venting DO NOT use single wall vent pipe When venting into a masonry chimney the chimney must be prope...

Page 40: ...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...