Comfort Glow CBN20 Safety Information And Installation Manual

Comfort Glow CBN20 Safety Information And Installation Manual

Unvented (vent-free) blue flame gas heater

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For more information, visit www.desatech.com
For more information, visit www.desatech.com
CBN20, CBP20
CBN20T, CBP20T
CBN30T, CBP30T
CBT20NT, CBT20PT
CBT30NT, CBT30PT
CBN20TK, CBP20TK
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result caus-
ing property damage, personal injury, or loss of life.
— 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 in-
structions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a
qualified installer, service agency, or the gas
supplier.
This appliance may be installed in an aftermarket*, permanently located, manufactured
(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.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
Save this manual for future reference.
Save this manual for future reference.
UNVENTED (VENT-FREE)
BLUE FLAME GAS HEATER
SAFETY INFORMATION AND
INSTALLATION MANUAL
WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manual for correct installation and
operational procedures. For as-
sistance or additional information
consult a qualified installer, ser-
vice agency, or the gas supplier.
WARNING: This is an unvented
gas-fired heater. It uses air (oxy-
gen) from the room in which it
is installed. Provisions for ad-
equate combustion and venti-
lation air must be provided.
Refer to Air for Combustion and
Ventilation section on page 4 of
this manual.

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Summary of Contents for Comfort Glow CBN20

  • Page 1 For more information, visit www.desatech.com For more information, visit www.desatech.com CBN20, CBP20 CBN20T, CBP20T CBN30T, CBP30T CBT20NT, CBT20PT CBT30NT, CBT30PT CBN20TK, CBP20TK WARNING: If the information in this manual is not followed exactly, a fire or explosion may result caus- ing property damage, personal injury, or loss of life.
  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ... 2 LOCAL CODES ... 3 PRODUCT IDENTIFICATION ... 3 UNPACKING ... 3 PRODUCT FEATURES ... 3 AIR FOR COMBUSTION AND VENTILATION ... 4 INSTALLATION ... 7 OPERATING HEATER ... 13 INSPECTING HEATER ...
  • Page 3: Local Codes

    SAFETY INFORMATION 3. If you smell gas • shut off gas supply • 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 •...
  • Page 4: Air For Combustion And Ventilation

    AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight construction un- less provisions are provided for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.
  • Page 5 AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.
  • Page 6: Ventilation Air

    AIR FOR COMBUSTION AND VENTILATION Ventilation Air AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the ceiling and one within 12"...
  • Page 7: Installation

    INSTALLATION NOTICE: This heater is intended for use as supple- mental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater.
  • Page 8 INSTALLATION Thermostat Sensing Bulb Installing Heater To Wall INSTALLATION Continued THERMOSTAT SENSING BULB The thermostat sensing bulb has been placed inside the heater for protection during shipping. Locating Thermostat Sensing Bulb (for thermostat applications) 1. Remove front panel of heater (see Figure 7). 2.
  • Page 9 INSTALLATION Continued 2. Mark screw locations on wall (see Figure 8). Note: Only mark last hole on each end of mounting bracket. Insert mounting screws through these holes only. 3. Remove tape and mounting bracket from wall. 12" 14" Min. Only Insert Mounting Screws Through Last Hole On Each End...
  • Page 10 INSTALLATION Installing Heater To Wall (Cont.) Mounting Heater To Floor INSTALLATION Continued Installing Bottom Mounting Screws 1. Locate two bottom mounting holes. These holes are near bot- tom on back panel of heater (see Figure 12). 2. Mark screw locations on wall. 3.
  • Page 11: Connecting To Gas Supply

    INSTALLATION Continued CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pres- sure regulator. WARNING: A qualified service person must con- nect heater to gas supply. Follow all local codes. WARNING: For natural gas, never connect heater to private (non-utility) gas wells.
  • Page 12: Checking Gas Connections

    INSTALLATION Checking Gas Connections INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a leak.
  • Page 13: Operating Heater

    OPERATING HEATER FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing prop- erty 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.
  • Page 14: Inspecting Heater

    OPERATING HEATER To Turn Off Gas To Appliance Thermostat Control Manual Lighting Procedure INSPECTING HEATER Pilot Flame Pattern OPERATING HEATER Continued TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. Turn control knob clockwise 2. Turn off all electric power to the appliance if service is to be performed.
  • Page 15: Cleaning And Maintenance

    INSPECTING HEATER Continued BURNER FLAME PATTERN WARNING: If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame. Figure 23 shows a correct burner flame pattern.
  • Page 16: Specifications

    You can also visit DESA Heating Products’ technical service web site at www.desatech.com. SERVICE PUBLICATIONS You can purchase a service manual from the address listed on the back page of this manual. Send a check for $5.00 payable to DESA Heating Products. CBT20NT CBT30NT...
  • Page 17: Troubleshooting

    TROUBLESHOOTING Note: For additional help, visit DESA Heating Products’ technical service web site at www.desatech.com. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot When ignitor button is pressed, there is...
  • Page 18 TROUBLESHOOTING TROUBLESHOOTING Continued OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture For more information, visit www.desatech.com...
  • Page 19 TROUBLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • 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.
  • Page 20: Illustrated Parts Breakdown And Parts List

    ILLUSTRATED PARTS BREAKDOWN Models CBN20 and CBP20 ILLUSTRATED PARTS BREAKDOWN MODELS CBN20 CBP20 For more information, visit www.desatech.com For more information, visit www.desatech.com 107882-01F...
  • Page 21: Parts List

    3/8" Inlet Tubing 098508-01 Valve Retainer Nut 098354-02 Control Knob 109303-04 Baffle PARTS AVAILABLE — NOT SHOWN 100642-03 Hardware Assembly 105345-01 Cable Tie 107888-01 Control Position Label 109483-01 Lighting Instruction Plate GA4550 Base Kit PARTS LIST Models CBN20 and CBP20 QTY.
  • Page 22 ILLUSTRATED PARTS BREAKDOWN Models CBN20T, CBP20T, CBN30T, CBP30T, CBN20TK, and CBP20TK ILLUSTRATED PARTS BREAKDOWN MODELS CBN20T, CBP20T CBN30T, CBP30T CBN20TK, CBP20TK For more information, visit www.desatech.com For more information, visit www.desatech.com 107882-01F...
  • Page 23 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. KEY CBN20T CBN20TK 097159-04 107954-01 107879-02 098522-10 107677-01 098260-12 107894-08 098271-09 098249-01 110803-01 110186-01 103446-01 099387-03...
  • Page 24: Illustrated Parts Breakdown

    ILLUSTRATED PARTS BREAKDOWN Models CBT20NT, CBT20PT, CBT30NT, and CBT30PT ILLUSTRATED PARTS BREAKDOWN MODELS CBT20NT, CBT20PT CBT30NT, CBT30PT For more information, visit www.desatech.com For more information, visit www.desatech.com Install Battery According To This Illustration (Determine which ignitor your heater uses) Battery Negative Alkaline Battery...
  • Page 25 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. CBT20NT 111435-01 107954-03 107879-02 098522-28 107677-01 098260-12 107894-08 098271-09 098249-01 110803-01 110186-01 103446-01 099387-03 103845-06 099066-02...
  • Page 26: Replacement Parts

    Contact authorized dealers of this product. If they can’t supply original replacement part(s), either contact your nearest Parts Cen- tral (see page 29) or call DESA Heating Products at 1-866-672-6040 for referral information. When calling DESA Heating Products, have ready •...
  • Page 27: Owner's Registration Form

    Address: City: Home Phone: E-Mail: Please answer the following questions to register your product with DESA Heating Products: 1. Where will the product be used? Living/Family Room Office/Warehouse If you bought this product yourself, did you plan to purchase this type of product before going into the store? 3.
  • Page 28 Postage Required 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 For more information, visit www.desatech.com For more information, visit www.desatech.com TAPE 107882-01F...
  • Page 29: Parts Centrals

    PARTS CENTRALS These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. Baltimore Electric 5 Manila Ave Hamden, CT 06514-0322 1-800-397-7553 203-248-7553 Portable Heater Parts 342 N. County Rd. 400 East Valparaiso, IN 46383-9704 219-462-7441 1-888-619-7060...
  • Page 30: Warranty Information

    VENT-FREE RESIDENTIAL GAS HEATERS DESA Heating Products warrants this product to be free from defects in materials and components for two (2) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions. To make a claim under this warranty the Bill of Sale or cancelled check must be presented.

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