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INFRARED VENT-FREE PROPANE/LP GAS HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
FB-3B
FBS-3C
FB-5B
FBS-5C
WARNING: If the information in this manual is
not followed exactly, a fire or explosion may
result causing 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 instructions.
• 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, manufac-
tured (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.
WARNING: Improper instal-
lation, adjustment, alteration,
service, or maintenance can
cause injury or property dam-
age. Refer to this manual for
correct installation and op-
erational procedures. For as-
sistance or additional infor-
mation consult a qualified in-
staller, service agency, or the
gas supplier.
WARNING: This is an
unvented gas-fired heater.
It uses air (oxygen) from the
room in which it is installed.
Provisions for adequate
combustion and ventilation
air must be provided. Refer
to Air For Combustion and
Ventilation section on page
4 of this manual.
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Table of Contents
Related Manuals for Desa Glo-Warm FB-5B
Summary of Contents for Desa Glo-Warm FB-5B
- Page 1 INFRARED VENT-FREE PROPANE/LP GAS HEATER OWNER’S OPERATION AND INSTALLATION MANUAL FB-3B FBS-3C FB-5B FBS-5C WARNING: Improper instal- WARNING: If the information in this manual is lation, adjustment, alteration, not followed exactly, a fire or explosion may service, or maintenance can result causing property damage, personal cause injury or property dam- injury, or loss of life.
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Page 2: Safety Information
INFRARED PROPANE/LP GAS HEATER SAFETY 4. This heater shall not be installed in a Due to high temperatures, the bedroom or bathroom. appliance should be located out INFORMATION 5. Always run non-thermostat heater with of traffic and away from furniture plaque control knob in a locked posi- and draperies. -
Page 3: Product Identification
OWNER’S MANUAL PRODUCT PRODUCT IDENTIFICATION FEATURES SAFETY DEVICE Control Knob This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air. -
Page 4: Fresh Air For Combustion And Ventilation
INFRARED PROPANE/LP GAS HEATER FRESH AIR FOR PRODUCING ADEQUATE Confined and Unconfined Space VENTILATION COMBUSTION AND The National Fuel Gas Code ANS Z223.1 defines a confined space as a space whose The following are excerpts from National VENTILATION volume is less than 50 cubic feet per 1,000 Fuel Gas Code, NFPA 54/ANS Z223.1, Sec- Btu per hour (4.8 m per kw) of the aggre-... -
Page 5: Determining Fresh-Air Flow For Heater Location
OWNER’S MANUAL FRESH AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet 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 INFRARED PROPANE/LP GAS HEATER FRESH AIR FOR COMBUSTION AND VENTILATION 12" Continued VENTILATION AIR Ventilation Air From Inside Ventilation Grills Building Into Adjoining Room, Ventilation Option 2 Grills This fresh air would come from an adjoining into Adjoining Remove unconfined space. When ventilating to an Room, Door into adjoining unconfined space, you must pro-...
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Page 7: Check Gas Type
OWNER’S MANUAL INSTALLATION For convenience and efficiency, install heater WARNING: Maintain the mini- • where there is easy access for operation, mum clearances shown in Figure inspection, and service 4. If you can, provide greater clear- NOTICE: This heater is intended •... - Page 8 INFRARED PROPANE/LP GAS HEATER INSTALLATION Removing Front Panel Of Heater Marking Screw Locations Models FB-3B and FB-5B Tape mounting bracket to wall where Continued heater will be located. Make sure 1. Remove two screws near bottom cor- INSTALLING HEATER TO mounting bracket is level.
- Page 9 OWNER’S MANUAL INSTALLATION Installing Bottom Mounting Screws Continued Locate two bottom mounting holes. Attaching Mounting Bracket To These holes are near bottom on back Wall panel of heater (see Figure 13). Mark screw locations on wall. Note: Wall anchors, mounting screws, and Figure 10 - Folding Anchor spacers are in hardware package.
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Page 10: Connecting To Gas Supply
INFRARED PROPANE/LP GAS HEATER INSTALLATION Apply pipe joint sealant lightly to male CAUTION: Use only new, black threads. This will prevent excess sealant Continued iron or steel pipe. Internally-tinned from going into pipe. Excess sealant in pipe copper tubing may be used in could result in clogged heater valves. -
Page 11: Checking Gas Connections
OWNER’S MANUAL INSTALLATION Pressure Testing Heater Gas OPERATING Connections Continued HEATER Open equipment shutoff valve (see CHECKING GAS Figure 16). NON-THERMOSTAT MODELS CONNECTIONS Open propane/LP supply tank valve. FB-3B AND FB-5B Make sure control knob of heater is in WARNING: Test all gas pip- the OFF position. -
Page 12: Manual Lighting Procedure
INFRARED PROPANE/LP GAS HEATER OPERATING Slightly press in control knob and turn coun- terclockwise to the LOW, ME- HEATER DIUM, or HIGH positions (see Figure 20). Continued IMPORTANT: Release downward pres- sure while turning control knob. Control LIGHTING knob will lock at the desired position. INSTRUCTIONS Figure 18 - Control Knob In The OFF Position... -
Page 13: Lighting Instructions
OWNER’S MANUAL OPERATING Push in control knob slightly and turn 7. Press in control knob and turn coun- clockwise to the OFF posi- terclockwise past IGN to PI- HEATER tion. Be sure that the temperature set- LOT (see Figure 21). This will cause the Continued ting knob is set at the line between piezo ignitor to spark and light the pilot... -
Page 14: Inspecting Burner
INFRARED PROPANE/LP GAS HEATER OPERATING ODS/PILOT AND BURNER Pilot Burner • Use a vacuum cleaner, pressurized air, HEATER Thermocouple or small, soft bristled brush to clean. Continued GOOD PILOT GRH/OV 009 CLEANING BURNER THERMOSTAT CONTROL Figure 24- Correct Pilot Flame Pattern PILOT AIR INLET HOLE OPERATION The thermostatic control used on these... -
Page 15: Troubleshooting
WARNING: Turn off and un- CAUTION: Never use a wire, plug heater and let cool before needle, or similar object to clean Note: For additional help, visit DESA servicing. Only a qualified ser- ODS/pilot. This can damage ODS/ International’s technical service web site vice person should service and pilot unit. - Page 16 INFRARED PROPANE/LP GAS HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner(s) does not light after ODS/pilot is lit 1. Burner orifice(s) is clogged 1. Clean burner orifice(s) (see Cleaning and Maintenance, page 14) or replace burner orifice(s) 2. Burner orifice(s) diameter is too small 2.
- Page 17 OWNER’S MANUAL 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.
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Page 18: Specifications
INFRARED PROPANE/LP GAS HEATER SPECIFICATIONS FB-3B FBS-3C FB-5B FBS-5C Btu (Variable) 6,000/12,000/15,000 15,000 6,000/15,000/25,000 25,000 Type Gas Propane/LP Only Propane/LP Only Propane/LP Only Propane/LP Only Ignition Piezo Piezo Piezo Piezo Pressure Regulator Setting 10 W.C. 10" W.C. 10" W.C. 10" W.C. Inlet Gas Pressure* (in. -
Page 19: Replacement Parts
DESA International’s Technical Service De- partment at 1-800-323-5190 for information. ACCESSORIES When contacting your dealer or DESA In- Purchase these heater accessories from your ternational, have ready: local dealer. If they can not supply these •... -
Page 20: Illustrated Parts Breakdown
INFRARED PROPANE/LP GAS HEATER ILLUSTRATED PARTS BREAKDOWN FB-3B (See Detail) Burner Assembly ODS/Pilot Assembly 107297... -
Page 21: Parts List
OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. FB-3B PART NO. FB-3B DESCRIPTION QTY. L98409-02 Cabinet Assembly L98005-02 Lower Front Panel Assembly L98410-02 Deflector Unit L98103-04... - Page 22 INFRARED PROPANE/LP GAS HEATER ILLUSTRATED PARTS BREAKDOWN FB-5B 27 28 (See Detail) TO "B1" TO "B2" TO "C1" TO "C2" ODS/Pilot Assembly Burner Assembly 107297...
- Page 23 OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. FB-5B PART NO. FB-5B DESCRIPTION QTY. L98409-01 Cabinet Assembly L98005-01 Lower Front Panel Assembly L98410-01 Deflector Unit L98103-02...
- Page 24 INFRARED PROPANE/LP GAS HEATER ILLUSTRATED PARTS BREAKDOWN FBS-3C (See Detail) 14-1 14-2 Burner Assembly ODS/Pilot Assembly 107297...
- Page 25 OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. FBS-3C PART NO. FBS-3B DESCRIPTION QTY. L98409-04 Cabinet Assembly L98006-02 Front Panel Assembly L98410-04 Reflector Unit L98103-04...
- Page 26 INFRARED PROPANE/LP GAS HEATER ILLUSTRATED PARTS BREAKDOWN (See Detail) FBS-5B TO "B1" TO "B2" TO "C1" 14-1 14-2 TO "C2" ODS/Pilot Assembly Burner Assembly 107297...
- Page 27 OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. FBS-5C PART NO. FBS-5B DESCRIPTION QTY. L98409-03 Cabinet Assembly L98006-01 Front Panel Assembly L98410-03 Reflector Unit L98103-02...
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Page 28: Warranty Information
GLO-WARM VENT-FREE PROPANE/LP GAS HEATERS DESA International 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.