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UNVENTED (VENT-FREE)
PROPANE GAS LOG HEATER
(Manually Control Models Also Designed Certified as Vented Decorative Appliance)
This appliance may be installed in an aftermarket* manufactured (mobile) home,
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
OWNER'S OPERATION AND INSTALLATION MANUAL
Thermostat and Manually-Controlled Models
WARNING: If the information in this manual
is not followed exactly, a fire or explosion
may result causing property damage, per-
sonal 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 per-
formed by a qualified installer, service
agency, or the gas supplier.
DESA INTERNATIONAL
where not prohibited by state or local codes.
18", 24", and 30" Log Sets
Save this manual for future reference.
WARNING: Improper installation, ad-
justment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manual for correct installation and
operational procedures. For assis-
tance or additional information con-
sult a qualified installer, service
agency, or the gas supplier.
WARNING: This gas log set is for
installation in a masonry solid fuel
burning fireplace, a U.L. listed manu-
factured solid fuel burning fireplace
or an AGA design certified vent-free
firebox listed for use with these gas
log models.
WARNING: This is an unvented gas-
fired heater. It uses air (oxygen) from
the room in which it is installed. Provi-
sions for adequate combustion and
ventilation air must be provided.
Refer to "Air for Combustion and
Ventilation" section in this manual.
®
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Table of Contents
Related Manuals for Desa UNVENTED (VENT-FREE) PROPANE GAS LOG HEATER
Summary of Contents for Desa UNVENTED (VENT-FREE) PROPANE GAS LOG HEATER
- Page 1 DESA INTERNATIONAL UNVENTED (VENT-FREE) PROPANE GAS LOG HEATER (Manually Control Models Also Designed Certified as Vented Decorative Appliance) This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state or local codes. * Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer OWNER’S OPERATION AND INSTALLATION MANUAL...
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Page 2: Table Of Contents
CONTENTS SAFETY INFORMATION SECTION Safety Information ... 2 Product Identification ... 4 Local Codes ... 4 Unpacking ... 4 Product Features ... 4 Fresh Air for Combustion and Ventilation ... 5 Installing ... 8 Check Gas Type ... 8 Installation and Clearances (Vent-Free Operation Only) ... 9 Installing Damper Clamp Accessory for Vented Operation ... - Page 3 SAFETY INFORMATION Continued 101309 WARNINGS WARNING ICON G 001 WARNING: Any change to this heater or its controls can be dangerous. 1. 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. 2.
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Page 4: Product Identification
PRODUCT IDENTIFICATION LOCAL CODES UNPACKING PRODUCT FEATURES Front Log Front Burner Piezo Ignitor Left Front Branch Right Front Branch Control Knob Figure 1 - Vent-Free Gas Log Heater Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANSI Z223, also known as NFPA 54*. -
Page 5: Fresh Air For Combustion And Ventilation
AIR FOR COMBUSTION VENTILATION 101309 This heater shall not be installed in a confined space unless 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. Today’s homes are built more energy efficient than ever. - Page 6 AIR FOR COMBUSTION VENTILATION Continued DETERMINING 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 7 AIR FOR COMBUSTION VENTILATION Continued 101309 WARNING ICON If the area in which the heater may be operated is smaller than that defined as an unconfined space, provide adequate combus- tion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3.
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Page 8: Installing
INSTALLING A qualified service person must install heater. Follow all local codes. State or local codes may only allow operation of this appliance in a vented configuration. Check your state or local codes. WARNING ICON G 001 Before installing in a solid fuel burning fireplace, the chimney flue and firebox must be cleaned of soot, creosote, ashes and loose paint by a qualified chimney cleaner. -
Page 9: Installation And Clearances (Vent-Free Operation Only)
INSTALLING Continued 101309 INSTALLATION AND CLEARANCES (Vent-Free Operation Only) Maintain the minimum clearances. If you can, provide greater clear- ances from floor, ceiling, and adjoining wall. MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size Side Wall 18", 24", 30" 16" LOG SIZING REQUIREMENTS Minimum Firebox Size Size... - Page 10 INSTALLING Continued Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, non-combustible material above fireplace opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 13.
- Page 11 INSTALLING Continued 101309 Minimum Non Combustible Material Clearances If Using Mantel You must have non combustible material(s) above the fireplace opening. Non combustible materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have non combustible material behind it. Non combustible material must extend at least 8 inches up (for all models).
- Page 12 INSTALLING Continued 12" 10" 8" 6" 1 /2 " Minimum Non- Combustible Material 8" Min. Hood (GA6050, GA6052) Figure 7 - Minimum Mantel Clearances When Using Hood If your installation does not meet the above minimum clearances, you must: • operate the logs only with the flue damper open, OR •...
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Page 13: Installing Damper Clamp Accessory For Vented Operation
INSTALLING Continued 101309 INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note: When used as a vented heater, appliance must be installed only in a solid- fuel burning fireplace with a working flue and constructed of non combustible material. If your heater is a manually controlled model, you may use this heater as a vented product. -
Page 14: Installing Heater Base Assembly
INSTALLING Continued INSTALLING HEATER BASE ASSEMBLY WARNING ICON G 001 You must secure this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak. WARNING ICON G 001 If installing in a sunken fireplace, special care is needed. You must raise the fireplace floor to allow access to heater control panel. -
Page 15: Connecting To Gas Supply
INSTALLING Continued 101309 Figure 12 - Attaching Mounting Brackets to Heater CONNECTING TO GAS SUPPLY A qualified service person must connect heater to gas supply. Follow all local codes. WARNING ICON Never connect heater directly to the propane supply. This heater requires an external regulator (not supplied). - Page 16 INSTALLING Continued The installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incoming gas pressure, heater regulator damage could occur.
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Page 17: Checking Gas Connections
INSTALLING Continued 101309 WARNING ICON Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings. A.G.A. Design-Certified Manual Shutoff Valve With 1/8" NPT Tap* From External Regulator (11" W.C.** to 14" W.C. Pressure) Tee Joint Pipe 3"... - Page 18 INSTALLING Continued 3. Pressurize supply piping system by either using compressed air or opening propane supply tank valve. 4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 5.
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Page 19: Installing Logs
INSTALLING Continued 101309 INSTALLING LOGS WARNING ICON Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury. Each log is marked with a number. These numbers will help you identify the log when installing. -
Page 20: Operating Heater (Thermostat-Controlled Models)
OPERATING HEATER Thermostat- Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON 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 has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. -
Page 21: To Turn Off Gas To Appliance
OPERATING HEATER Thermostat- Controlled Models Continued 101309 5. Turn control knob counterclockwise control knob for five (5) seconds (see Page 20). Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control knob may need to be pressed in for 30 seconds or less. This will allow air to bleed from the gas system. -
Page 22: Operating Heater (Manually-Controlled Models)
OPERATING HEATER Manually-Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON 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 has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. - Page 23 OPERATING HEATER Manually-Controlled Models Continued 101309 5. Press in control knob and turn counterclockwise Keep control knob pressed in for five (5) seconds (see Figure 23). Note: You may be running this heater for the first time after hooking up to gas supply.
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Page 24: Inspecting Burners
INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 25 shows a correct pilot flame pattern. Figure 26 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. -
Page 25: Cleaning And Maintenance
CLEANING MAINTENANCE TROUBLE- SHOOTING Note: All troubleshooting items are listed in order of operation. 101309 WARNING ICON Turn off heater and let cool before cleaning. WARNING ICON You must keep control areas, burners, and circulating air passage- ways of heater clean. Inspect these areas of heater before each use. - Page 26 TROUBLE- SHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE When ignitor button 1. Gas supply turned off or is pressed, there is manual shutoff valve spark at ODS/pilot closed but no ignition 2. Control knob not in PILOT position 3. Control knob not pressed in while in PILOT position 4.
- Page 27 TROUBLE- SHOOTING Continued 101309 OBSERVED POSSIBLE PROBLEM CAUSE One or both burners 1. Inlet gas pressure is do not light after too low ODS/pilot is lit 2. Burner orifice(s) clogged 3. Mislocated crossover tube 4. Burner orifice(s) diameter is too small Delayed ignition of 1.
- Page 28 TROUBLE- SHOOTING Continued WARNING ICON G 001 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.
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Page 29: Optional Positioning Of Thermostat Sensing Bulb
OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB For Masonry and Factory-built Metal Fireplace 101309 If your log set cycles to pilot, but the room temperature drops to a lower than ideal comfort level before the log set comes back on, you may want to reposi- tion the thermostat sensing bulb. - Page 30 OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB For Masonry and Factory-built Metal Fireplace Continued Thermostat Sensing Bulb Adhesive-backed Mounting Clip Figure 32 - Locating Thermostat Sensing Bulb on Masonry Fireplace If you have a factory-built metal fireplace, see Figure 33 for location. Thermostat Sensing Bulb Adhesive-backed...
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Page 31: Technical Service
TECHNICAL SERVICE SPECIFICATIONS SERVICE HINTS 101309 You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564). 18" Thermostat- 24" Thermostat- 30" Thermostat- Controlled Btu (Variable) 16,000/26,000 Type Gas... -
Page 32: Replacement Parts
Usually, we will ask you to return the defective part to the factory. Parts Not Under Warranty Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Parts Department at 1-800-972-7879 for referral information. When calling DESA International, have ready •... -
Page 33: Accessories
101309 Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International’s Parts Department at 1-800-972-7879 for information. You can also write to the address listed on the back page of this manual. -
Page 34: Illustrated Parts Lists
ILLUSTRATED PARTS BREAKDOWN Manually-Controlled Models 10-2 7-1 7-2 10-1 101309... - Page 35 PARTS LIST Manually-Controlled Models VL18P/CF18P 101337-01 101336-01 101334-01 101333-02 —— —— M11084-26 099059-02 098594-01 098593-01 098249-01 101006-01 101330-01 10-1 101008-01 10-2 101007-01 100999-01 101331-01 098271-06 097159-02 098867-10 M11084-38 101011-02 098324-02 098462-02 098325-01 098508-01 101005-01 098932-07 101003-01 098276-01 101010-01 099387-08 101004-10 101004-10 101009-01 100563-01...
- Page 36 ILLUSTRATED PARTS BREAKDOWN Thermostat- Controlled Models 7-1 7-2 10-2 10-1 101309...
- Page 37 PARTS LIST Thermostat- Controlled Models VL18PT/CF18PT VL24PT/CF24PT VL30PT/CF30PT 101337-01 101336-01 101334-01 101333-02 —— —— M11084-26 099059-02 098594-01 098593-01 098249-01 101006-01 101330-01 10-1 101008-01 10-2 101007-01 100999-01 101331-01 098271-06 097159-02 098867-08 M11084-38 100996-01 098324-02 099974-04 100000-01 101053-01 099211-01 098544-01 101329-02 100994-01 101004-10 101004-10 101012-01...
- Page 38 NOTES 101309...
- Page 39 NOTES 101309...
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Page 40: Warranty Information
VENT-FREE PROPANE GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for three (3) years and five (5) years on stainless steel burners from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.