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COZY WOW253 Installation And Operating Instructions Manual

Fan-type, direct-vent through-the-wall gas heater
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OPERATING INSTRUCTIONS
MODEL NUMBERS
NAT. GAS
WOW253
WOW403
WARNING: If the information in these instructions are
not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
-
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:
•
Do not try to light any appliance.
•
Do not touch any electrical switch; do not use any
phone in your building.
•
Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
•
If you cannot reach your gas supplier, call the
fire department.
-
INSTALLATION AND SERVICE MUST BE PER-
FORMED BY A QUALIFIED INSTALLER,
SERVICE AGENCY OR THE GAS SUPPLIER.
WARNING: Operation of this furnace without the factory installed vent system could result in Carbon Monox-
ide (CO) poisoning and possible death. For your safety, this furnace and the vent system must be inspected
before initial use and at least annually by a qualified service technician.
This appliance may be installed in an aftermarket, permanently located, manufactured home (USA only) or
mobile home, where not prohibited by local codes. This appliance is only for use with the type of gas indicated
on the rating plate. This appliance is not convertible for use with other gases, unless a certified kit is used.
This unit is for residential installation only and is not approved for greenhouses, or environments
involving dusty, wet, corrosive, or explosive conditions. Installation and usage other than
residential applications will invalidate the warranty and may create unsafe conditions resulting in
property damage, personal injury or loss of life.
NOTE: Obstruction in the vent exhaust tube or air intake tube due to insects, small animals, debris,
etc. will prevent the heater from operating but DOES NOT constitute a warranty issue.
Installation, maintenance, service, troubleshooting and repairs must be performed by a qualified service agency.
MR./MRS. HOMEOWNER, DO NOT attempt any of these procedures yourself as this could expose you to
property damage, personal injury, or loss of life and will invalidate all warranties.
FAN-TYPE, DIRECT-VENT
THROUGH-THE-WALL
INSTALLATION AND
P/N 64920 /
INSTALLER: Leave this manual with the appliance.
L.P. GAS
WOW254
CONSUMER: Retain this manual for future reference.
WOW404
GAS HEATER
REV. JUNE 2015
CONNECT TO 115V ELECTRICAL
POWER SUPPLY.
DO NOT CONNECT TO 220V
POWER SUPPLY.
This appliance must be
connected to an electrical
ground.
WARNING:

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Summary of Contents for COZY WOW253

  • Page 1 P/N 64920 / REV. JUNE 2015 INSTALLER: Leave this manual with the appliance. MODEL NUMBERS NAT. GAS L.P. GAS WOW253 WOW254 CONSUMER: Retain this manual for future reference. WOW403 WOW404 WARNING: If the information in these instructions are not followed exactly, a fire or explosion may result causing property damage, personal injury or death.
  • Page 2 MODEL INPUT CABINET TYPE MAX. WALL MIN. WALL BTU/HR. WIDTH DEPTH HEIGHT AMPS CONN. GAS THICKNESS THICKNESS WOW253 20,000 14-1/4" 28-1/4" 17-1/8" 1.88 3/8" NAT. 18" 4" 361.95 mm 717.55 mm 435 mm 457.2 mm...
  • Page 3 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.
  • Page 4 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 Open carton and carefully remove heater and all additional parts. Make sure all components illustrated in Figure 1 have been shipped.
  • Page 5 Page 5...
  • Page 6 LOCATION - Continued 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.). Do not install heater where the exhaust or air intake will terminate in a window well or any opening below ground level.
  • Page 7 STEP 3 LOCATE THERMOSTAT Thermostat must be installed in same room as heater. Locate thermostat on an inside wall approximately 5 feet {153 cm} above the floor and at least 6 feet {183 cm}from the heater. Do not locate thermostat so as to be effected by heat from sources other than the heater (i.e. direct sunlight, lamps, T.V.
  • Page 8 Gently slide combustion tube assembly forward and out of the outer casing assembly (See Figure 6). Center outer cabinet in window opening WOW253 / FIGURE 7 Lower window onto the outer cabinet top. WOW254 Do not apply excessive downward force as the cabinet top could be damaged.
  • Page 9 WINDOW INSTALLATION - Cont’d. trim 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.
  • Page 10 WOW253/254 will be secured into At desired height, mark hole opening for your studs on both sides.
  • Page 11 INSTALLING THROUGH A MASONRY WALL At desired height, mark hole opening for your homeowner desires, heater may be model heater. (See Figure 11). hardwired by a licensed electrician (check Before cutting, verify both inside and outside your local electrical codes). clearances.

  • Page 12: Operating Instructions

    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. 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.

  • Page 13: Proper Burner Flame

    MANIFOLD SIGHT BURNER GLASS VALVE FIGURE 13 - - WOW253 / WOW254 FIGURE 13 - - WOW403 / WOW404 LIGHT BLUE OUTER MANTLE FIGURE 14 DARKER BLUE INNER MANTLE There is no primary air adjustment on the burner and with correct installation, a proper flame is assured; since the correct manifold pressure and orificing has been done at the factory for elevations up to 2,000 ft.
  • Page 14 Connect gas supply line to gas control. The WOW403, 404 requires 5 orifices and Turn on gas supply. Check for leaks using the WOW253, 254 requires 3. a soapy solution. NEVER use an open Carefully check integrity of all gaskets, make flame to check for leaks.
  • Page 15 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...
  • Page 16 Page 16...

  • Page 17: Maintenance Instructions

    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.
  • Page 18 Reinstall by reversing steps J through A. Follow lighting instructions to place heater in operation. Model WOW403/WOW404 shown FIGURE 15 WOW253 / WOW254 MODELS HAVE THREE BURNERS WOW403 / WOW404 MODELS HAVE FIVE BURNERS FIGURE 17 Page 18...
  • Page 19 TO REMOVE MAIN BURNERS FOR INSPECTION AND CLEANING: SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN INSTRUCTIONS FOR WOW403 & WOW404 Turn thermostat to “OFF” or lowest setting. You can now inspect, clean or replace Turn off electric power to heater. burner as needed.
  • Page 20 TO REMOVE COMBUSTION TUBE ASSEMBLY FOR INSPECTION, CLEANING AND REPLACEMENT For WOW253 / WOW254 SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN. Turn thermostat to “OFF” or lowest setting. Allow heater to cool. PRESSURE IGNITOR Turn off electric power to heater..
  • Page 21 TO REMOVE COMBUSTION TUBE ASSEMBLY FOR INSPECTION, CLEANING AND REPLACEMENT For WOW403 / WOW404 SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE TECHNICIAN. Turn thermostat to “OFF” or lowest setting. Allow heater to cool. PRESSURE IGNITOR Turn off electric power to heater. S W I T C H CABLE Remove front panel.
  • Page 22 TROUBLE SHOOTING CHART - for use by a qualified service technician To assist in diagnosing and servicing, this heater is equipped with a self-diagnosing control module. Should a malfunction occur, the green indicator light on the control module will flash a varying number of times indicating the circuit in which malfunction is located.
  • Page 23 TROUBLE SHOOTING CHART - for use by a qualified service technician. SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION Flame too large 1. Defective operator section of valve. 1. Replace valve. 2. Burner orifices too large. 2. See installation instructions or check with local gas company for proper orifice size and replace as needed.
  • Page 24 ATTN: CONTRACTORS AND SERVICE TECHNICIANS, we only sell parts through our wholesalers, but the prices listed are for your convenience. For prompt parts service, contact the wholesaler from which you purchased your Cozy heater. NOTE: Parts prices & schematic drawings on current models are shown at www.cozyheaters.com.
  • Page 25 ATTN: CONTRACTORS AND SERVICE TECHNICIANS , we only sell parts through our wholesalers, but the prices listed above are for your convenience. For prompt parts service, contact the wholesaler from which you purchased your Cozy heater. NOTE: Parts & schematic drawings on current models are shown at www.cozyheaters.com.
  • Page 26 ATTN: CONTRACTORS AND SERVICE TECHNICIANS, we only sell parts through our wholesalers, but the prices listed are for your convenience. For prompt parts service, contact the wholesaler from which you purchased your Cozy heater. NOTE: Parts prices & schematic drawings on current models are shown at www.cozyheaters.com.
  • Page 27 ATTN: CONTRACTORS AND SERVICE TECHNICIANS, we only sell parts through our wholesalers, but the prices listed above are for your convenience. For prompt parts service, contact the wholesaler from which you purchased your Cozy heater. NOTE: Parts & schematic drawings on current models are shown at www.cozyheaters.com.
  • Page 28 ATTN: CONTRACTORS AND SERVICE TECHNICIANS, we only sell parts through our wholesalers, but the prices listed above are for your convenience. For prompt parts service, contact the wholesaler from which you purchased your Cozy heater. NOTE: Parts prices & schematic drawings on current models are shown at www.cozyheaters.com.

  • Page 29: Limited Warranty

    Cozy Gas Fired Counterflow Furnace 10 Years 10 Years Cozy Gas Fired Counterflow Direct Vent Furnace 10 Years 10 Years Cozy Gas Fired Mobile Home Direct Vent Furnace 10 Years 10 Years Cozy Gas Fired Hi-Efficient Direct Vent Wall Furnace 10 Years 10 Years...

This manual is also suitable for:

Wow254Wow403Wow404