Page 2 - CONTENTS
READ CAREFULLY BEFORE INSTALLING UNIT These installation instructions are a general guide, and do not supersede applicable local codes and ordinances. Before planning ormaking the installation, be sure it complies with all phases of the local heating codes. Or, in the absence of local codes, with th...
Page 3 - As viewed from front of heater, the minimum clearance; NATURAL GAS; In selecting a location for installation it is necessary; CONTROLS
1” 11” 2” SAFETY RULES A) The wall furnace should be located near the center ofthe house for best heat distribution. B) Due to high temperatures, the appliance should belocated out of traffic and away from furniture anddraperies. C) Children and adults should be alerted to the hazardsof high surface...
Page 4 - COMBUSTION AND VENTILATION AIR; FIGURE D
COMBUSTION AND VENTILATION AIR When installed, this gas appliance must be provided with fresh air for combustion,ventilation, and dilution of hot flue gases. The minimum required volume of thearea where the appliance is installed should be 50 cubic feet per 1,000 btu/hr. If installed in an area of t...
Page 5 - VENTING; SQUARE
VENTING This appliance must be properly connected to a venting system. Consult local ordinances governing venting. Install only UL listed type BW 4” oval gas vent. When the vent enters theattic, a listed type B-1 round flue pipe may be used. See Figure2, Page 7. Vent pipe must connect to the wall fu...
Page 6 - ROUGH-IN INSTRUCTIONS; Attach the base plate (purchased; FIGURE C; WARNING: Do not bypass the blocked flue; switch. To do so could expose the consumer to; FIGURE A; FIGURE B
ROUGH-IN INSTRUCTIONS NOTE: Maximum wall thickness for a dualwall (W501, W502, W505, W506) installationis 5-3/8”. STEP 1. Attach the base plate (purchased with the vent pipe) to the header plateusing two No. 8 sheet-metal screwsthrough the pre-punched holes. Theheater may not vent properly without a...
Page 7 - STEP 4. Remove double ceiling plate between studs.
ROUGH-IN INSTRUCTIONS NOTE: For proper combustion, make sure units arelevel, front to back and side to side. FIGURE 5A - DRY WALL FIGURE 5B - PLASTER WALL FIGURE 1 ROUGH-INDIMENSIONS Dry-Wall B-W Type Vent FrontPanel Screw PlasterGround Plaster B-W Type Vent Screw FrontPanel PlasterGround STEP 4. Re...
Page 8 - FIGURE 3; FIGURE 5C; INSTALLATION; To place furnace into position, grasp; STEP 10. To fasten front panel to furnace, be sure exposed; FIGURE 4
B-W VENT FIGURE 3 Casing “Z BracketFront Panel FrontPanel Door FIGURE 5C INSTALLATION STEP 6. To place furnace into position, grasp furnace and lift so furnace flue vent and headerplate vent opening engage. Do not use burner orgas control to lift heater. Lift furnace upward andswing bottom into wall...
Page 10 - property damage, personal injury or loss of life.; LIGHTING INSTRUCTIONS
A. This appliance has a pilot which must be lightedby hand. When lighting the pilot, follow these in-structions exactly. B. B E F O R E L I G H T I N G s m e l l a l l a r o u n d t h eappliance area for gas. Be sure to smell next to thefloor because some gas is heavier than air and willsettle on th...
Page 12 - PILOT ADJUSTMENT; PILOT FLAME ADJUSTMENT; PILOT FLAME SHOULD ENVELOP 3/8 TO 1/2 INCH; MAINTENANCE INSTRUCTIONS; BURNER FLAME ADJUSTMENT - STAINLESS STEEL BURNER; Flame. Open air shutters until
PILOT ADJUSTMENT Locate the pilot adjustment screw on the valve. The pilotflame should surround at least the top 3/8” of the powerpile(pilot generator) or thermocouple (see below). The pilot isunregulated so it will be operating at inlet line pressure (Max.7” w.c. for natural gas and 11” w.c. for pr...
Page 13 - INSTALLATION INSTRUCTIONS; Slot
Page 13 MODEL WFF81-C OPTIONAL FAN KIT INSTALLATION INSTRUCTIONS NOTE: This fan kit is to be installed after installation of wall furnace and with the wall furnace front panel in place. STEP 1 . This appliance, when installed, must be electrically grounded in accordance with local codes, or inthe ab...
Page 14 - WFF81-C WIRING SCHEMATIC
Ground WHITE BLACK L2 White115 VAC L1 Black115 VAC BLACK FAN SWITCH BLACK BLACK BLACK MOTOR WHITE GREEN GROUND WIRE L2White L1Black 115 VAC 60 HZ - Less than 12 Amps. If any of the original wire assupplied with this appliance must be replaced, it must be replaced withtype thermoplastic 105 degree C ...
Page 15 - TROUBLE SHOOTING CHART for qualified serviceman - MAIN BURNER; SYMPTOM
TROUBLE SHOOTING CHART for qualified serviceman - MAIN BURNER SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION Flame too large 1. Defective operator section of gas valve. 1. Replace complete valve. 2. Burner orifice too large. 2. Check with local gas company for proper orifice size and replace. 3. If insta...
Page 16 - TROUBLE SHOOTING CHART - AUTOMATIC PILOT & VALVE
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION Burner won’t 1. Pilot flame too large or too small. 1. Re-adjust pilot flame using adjustment on turn on combination control valve. 2. Dirt in pilot orifice. 2. Clean pilot orifice with air or solvent, do not ream. 3. Defective automatic pilot section in 3. ...
Page 17 - GRAVITY WALL FURNACE; THERMOSTAT
SINGLE WALL FURNACEModel NumbersNat. L.P. W251F W252FW351F W352FW255F W256FW355F W356F DUAL WALL FURNACEModel NumbersNat. L.P. W501F W502FW505F W506F NOTICE: When ordering any component in the Burner Assembly, specifyeither Honeywell or Robertshaw components. REV. 08/02 Page 17 Prices and specificat...
Page 20 - LOUISVILLE TIN AND STOVE COMPANY; LIMITED WARRANTY
TABLE A Warranty for gas appliance heat exchangers only. Product Warranty Period Cozy Gas Fired Floor Furnace 10 Years Cozy Gas Fired Wall Furnace 10 Years Cozy Gas Fired Vented Console Heater 10 Years Cozy Gas Fired Direct Vent Heater 10 Years Cozy Gas Fired Counterflow Furnace 10 Years Cozy Gas Fi...