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FAN-TYPE, DIRECT-VENT
THROUGH-THE-WALL
GAS HEATER
INSTALLATION AND
OPERATING INSTRUCTIONS
P/N 64920 / DECEMBER 2006
R
R
INSTALLER: Leave this manual with the
MODEL NUMBERS
appliance.
NAT. GAS L.P. GAS
WOW253 WOW254 CONSUMER: Retain this manual for future
WOW403 WOW404 reference.
WARNING: If the information in these instructions are
not followed exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
- Do not store or use gas
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The State of Massachusetts requires that installation and service of a gas appliance be performed by a plumber or gas fitter licensed in the Commonwealth of Massachusetts. For bedroom window installation, the State of Massachusetts requires two or more operable windows in the bedroom that are in compliance with 780CMR, Massachusetts Building Code. CONTENTS Introduction……………………………..... 2 Gas Conversion......................................... 14 Specifications and Dimensions………...….. 2 Wiring D
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SAFETY RULES The Direct Vent Gas Wall/Window Heater and its components meet all applicable safety standards when installed as directed in this manual. For safe installation and operation of your Direct Vent Gas Wall/Window Heater, read all these instructions before you begin. Failure to follow them exactly will void your warranty and may result in fire, property damage, personal injury, and loss of life. 1. Improper installation, adjustment, alteration, service, or maintenance can cause proper
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INSTALLATION WARNING: Failure to follow these instructions exactly may result in poor performance, property damage, personal injury, or loss of life. Installation must be done by a qualified service person. STEP 1. PREPARING TO INSTALL HEATER a) Open carton and carefully remove heater and all additional parts. b) Make sure all components illustrated in Figure 1 have been shipped. You should have received: 1 - Wind-O-Warm Window/Wall Direct Vent Gas Heater 1 - Ball Valve with Flex Connector 2 -
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Page 5 FIGURE 2. VENT TERMINAL CLEARANCES V VENT TERMINAL X AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED Canadian Installations ¹ U.S. Installations ² A = Clearance above grade, veranda, porch, deck, or balcony 12 Inches (30 cm) 12 Inches (30 cm) B = Clearance to window or door that may be opened 6 Inches (15 cm) for appliances < 10,000 Btuh (3 kw), 12 inches (30 cm) 6 Inches (15 cm) for appliances < 10,000 Btuh (3 for applianc
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LOCATION - Continued 4. Allow 48” (122 cm) inches from outside rear of cabinet to any obstructions such as fences, walls, shrubs, trees, etc. (Consider outside appearance, pedestrian traffic walkways, plantings, etc.). 5. Do not install heater where the exhaust or air intake will terminate in a window well or any opening below ground level. Special precautions may be required to prevent snow build-up within 12” (30 cm) of the air intake. 6. Check required clearances for front panel (See Figure
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STEP 3 - LOCATE THERMOSTAT 1. Thermostat must be installed in same room as heater. 2. Locate thermostat on an inside wall approximately 5 feet {153 cm} above the floor and at least 6 feet {183 cm}from the heater. 3. Do not locate thermostat so as to be effected by heat from sources other than the heater (i.e. direct sunlight, lamps, T.V. sets, radiators, registers, etc.). 4. Do not locate thermostat in unusually cool locations (i.e. outside wall, on a wall separating the heated area from an un
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STEP 5 - INSTALLING THE HEATER Use only factory supplied parts. Do not modify heater in any way. WINDOW INSTALLATION E.) Center outer cabinet in window opening A.) Raise window - locate center. and slide in so bottom flange is flush B.) Heater requires level mounting surface, against windowsill. Secure cabinet to framing may be necessary in window sill. windowsill through holes provided in C.) Remove the 6 screws securing the back cabinet bottom. Use appropriate fasteners of outer cabinet t
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WINDOW INSTALLATION - Cont’d. H.) Using 3 #8 x 3/8” screws (provided), attach trim K.) Locate factory installed thermostat wires panels to left and right flanges on outer cabinet. extending from the front of heater. The 1/2”, 90 degree break on the trim panel Connect 24 V. wall thermostat (pro- must be attached securely to the window frame. vided) to heater using a maximum 20’ of (See Figure 8). thermostat wire. Do not splice thermo- stat wire. (See Figure 9). L.) Connect 3/8” minimum gas sup
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INSTALLING THROUGH A FRAME WALL NOTE: The WOW25 models will install between wall studs on 16” centers. The WOW40 will attach to a stud on either the right or left side. The opposite stud must be cut out of the opening and 1-1/2” below the cutout. You must then install a 2”-by your wall thickness plate on top of the cut stud and secure to the remaining stud. This plate will cover the opening inside the wall, front to back, and provides support as well as a foundation that will be used to sec
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INSTALLING THROUGH A MASONRY WALL A.) At desired height, mark hole opening for your L.) Plug factory wired power cord into a model heater. (See Figure 11). properly grounded 115 volt electrical B.) Before cutting, verify both inside and outside outlet. NEVER use an extension cord. If clearances. Verify that no electrical wires, con- homeowner desires, heater may be duit, water or gas pipes pass through area you hardwired by a licensed electrician (check have marked. your local electrical cod
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FOR YOUR SAFETY READ BEFORE OPERATING 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 does not have a pilot. It is • If you cannot reach your gas supplier, call equipped with an ignition device which the fire department. automatically lights the burner. Do not try to light the burner by hand. C. Use only your hand to push in or turn the gas control knob. Never use tools. If
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PROPER BURNER FLAME Appliance input ratings are based on sea level operation and need not be changed for operation up to 2,000 (609.9m) elevation. For operation at elevations above 2,000 ft. (609.9m), manufactured to specified deration conditions for Canada and the United States, use the following orifice chart for/to determine the correct orifice DMS for a specific elevation. SIGHT GLASS BURNER BOX MANIFOLD SIGHT GAS BURNER GLASS BOX VALVE FIGURE 13 - - WOW403 / WOW404 FIGURE 13 - - WOW253
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GAS CONVERSION CONVERTING GAS CONTROL This heater is field convertible. Use only factory sup- A.) Remove the converting seal cap. (See plied, certified kits. Figure A). WARNING: Do not remove or tamper with any other valve components. Model Conversion B.) Remove the black rubber gasket from the Number Description Kit No. down side of the converting seal cap and WOW253 Convert Nat. to L.P. 20,000 49670 reinstall gasket on opposite side of WOW254 Convert L.P. to Nat. 20,000 49660 co
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WIRING IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH A WIRE OF AT LEAST 105 DEGREE C TEMPERATURE RATING. CAUTION: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIR- ING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING. WIRING DIAGRAM - WOW253 & WOW254 Pressure Thermostat Black Switch Gas Valve WOW253, WOW253, Gas P r e s s u r e Valve Black WOW254 WOW254 Switch Blue Draft PI
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! ! ! ! NO NO Page 16 ! ! ! ! WIND-O-WARM SEQUENCE OF OPERATION 4 Sec. 90 Sec. 30 Sec. 180 Sec. Gas Gas Pressure YES YES valve Heater Power valve Heater switch Spark Burner Draft Thermostat opens in on to Blower closes Blower Heat Thermostat in closes flame inducer calls for ignition gas! ! ! ! ! ! ! on ! ! ! gas flow! ! ! stand- draft cycle satisfied off stand- inducer off heat energized proved flow to to burners by inducer by proved burner off 15 Sec. Inducer inter continues to purge run Press
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MAINTENANCE INSTRUCTIONS ! For correct and safe operation, keep heater and heater area clean. At regular intervals, turn control valve to OFF, let heater cool and clean inside control and heat exchanger compartments. ! To clean outside cover, use a damp cloth, do not use any kind of solvent or cleaning fluid as they may leave a residue that could burn or give off odors when heater is turned on. ! Have heater, including exhaust/intake tubes, checked, cleaned and/or repaired by a qualified servic
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TO REMOVE MAIN BURNERS FOR INSPECTION AND CLEANING: SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE AGENCY INSTRUCTIONS FOR WOW253 & WOW254 A.) Turn thermostat to “OFF” or lowest setting. B.) Allow heater to cool. C.) Turn off electric power to the heater. D.) Turn off the gas supply. E.) Remove front panel. F.) Disconnect ignition cable and pressure switch tubing from burner box bottom. G.) Remove fourteen screws securing burner box bottom. H.) Remove two screws that secure each burner to burn
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TO REMOVE MAIN BURNERS FOR INSPECTION AND CLEANING: SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE AGENCY INSTRUCTIONS FOR WOW403 & WOW404 A.) Turn thermostat to “OFF” or lowest setting. M.) You can now inspect, clean or replace B.) Turn off electric power to heater. burner as needed. Clean by blowing com- C.) Allow heater to cool. pressed air through burner. Special care D.) Turn off gas supply. must be taken not to damage ceramic head E.) Disconnect gas supply line at heater. of burner, or
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TO REMOVE COMBUSTION TUBE ASSEMBLY FOR INSPECTION, CLEANING AND REPLACEMENT SERVICE MUST BE PERFORMED BY A For WOW253 / WOW254 QUALIFIED SERVICE AGENCY. A.) Turn thermostat to “OFF” or lowest setting. B.) Allow heater to cool. PRESSURE IGNITOR C.) Turn off electric power to heater.. S W I T C H CABLE TUBING D.) Turn gas supply valve to “OFF”. E.) Disconnect gas supply line from gas valve. F.) From outside, remove six (6) screws securing back of outer cabinet to air in take and exhaust flanges.
