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UNVENTED (VENT-FREE)
PROPANE/LP GAS LOG HEATER
Variably 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
CG3324PTA, CG3630PTA, CG2618PVA, CG3324PVA, and CG3630PVA
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 build-
ing.
• Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas sup-
plier, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency, or the gas supplier.
where not prohibited by state or local codes.
Thermostat and Variably-Controlled Models
Save this manual for future reference.
LO
PILOT
OFF
HI
WARNING: Improper installation, adjust-
ment, alteration, service, or maintenance
can cause injury or property damage.
Refer to this manual for correct installa-
tion and operational procedures. For
assistance or additional information con-
sult a qualified installer, service agency,
or the gas supplier.
WARNING: This gas log set is for instal-
lation in a masonry solid fuel burning
fireplace, a U.L. listed manufactured
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 ven-
tilation air must be provided. Refer to
Air for Combustion and Ventilation sec-
tion in this manual.
®
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Table of Contents
Related Manuals for Comfort Glow CG3324PTA
Summary of Contents for Comfort Glow CG3324PTA
- Page 1 * Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer OWNER’S OPERATION AND INSTALLATION MANUAL ® PILOT CG3324PTA, CG3630PTA, CG2618PVA, CG3324PVA, and CG3630PVA Thermostat and Variably-Controlled Models WARNING: Improper installation, adjust- WARNING: If the information in this...
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Page 2: Table Of Contents
CONTENTS SECTION PAGE Safety Information ................... 2 Product Identification ................4 Local Codes ..................... 4 Unpacking ....................4 Product Features ..................4 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 WARNINGS Continued SAFETY WARNING: Any change to this heater or its controls can be dangerous. INFORMATION 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. Continued 2.
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Page 4: Product Identification
Front Log PRODUCT Rear Log IDENTIFICATION Front Burner Left Branch Rear Burner Piezo Ignitor Right Branch Base Assembly Control Knob Figure 1 - Vent-Free Gas Log Heater Install and use heater with care. Follow all local codes. In the absence of local LOCAL CODES codes, use the latest edition of The National Fuel Gas Code ANSI Z223, also known as NFPA 54*. -
Page 5: Air For Combustion And Ventilation
AIR FOR WARNING WARNING ICON G 001 COMBUSTION This heater shall not be installed in a confined space unless provisions are provided for adequate combustion and ventila- tion air. Read the following instructions to insure proper fresh VENTILATION air for this and other fuel-burning appliances in your home. Today’s homes are built more energy efficient than ever. - Page 6 DETERMINING AIR FLOW FOR HEATER LOCATION AIR FOR Determining if You Have a Confined or Unconfined Space COMBUSTION 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 VENTILATION doorless passageways or ventilation grills between the rooms.
- Page 7 AIR FOR WARNING WARNING ICON G 001 COMBUSTION 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 NOTICE A qualified service person must install heater. Follow all local codes. NOTICE State or local codes may only allow operation of this appliance in a vented configuration. Check your state or local codes. WARNING Before installing in a previously-used wood-burning fireplace, clean chimney flue and firebox. -
Page 9: Installation And Clearances (Vent-Free Operation Only)
INSTALLING INSTALLATION AND CLEARANCES (Vent-Free Operation Only) Continued WARNING Maintain the minimum clearances. If you can, provide greater clearances from floor, ceiling, and adjoining wall. MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size Side Wall Ceiling 18", 24", 30" 16" 42"... - Page 10 INSTALLING NOTICE Manual control heaters may be used as a vented product. If so, Continued 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 Minimum Non Combustible Material Clearances INSTALLING If Using Mantel Continued 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 Mantel Shelf INSTALLING 12" Underside of 10" Mantel Shelf Continued 8" 6" 1 /2 " All minimum distances are in inches Minimum Non- Combustible Log Sets Material 8" 12" 15" 18" 20" 18", 24", Min. & 30" Models Top of Fireplace Opening Hood Distances to...
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Page 13: Installing Damper Clamp Accessory For Vented Operation
INSTALLING DAMPER CLAMP ACCESSORY FOR INSTALLING VENTED OPERATION Continued 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 INSTALLING HEATER BASE ASSEMBLY Continued WARNING 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 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 Masonry Screw Mounting Bracket Figure 12 - Attaching Mounting Brackets to Heater CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. CAUTION Never connect heater directly to the propane/LP supply. This heater requires an external regulator (not supplied). - Page 16 The installer must supply an external regulator. The external regulator will reduce INSTALLING 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 Continued damage could occur.
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Page 17: Checking Gas Connections
INSTALLING CAUTION Continued 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 From With 1/8" NPT Tap* Approved Flexible External Regulator Gas Hose (if allowed (11" W.C.** to by local codes) 14"... - Page 18 3. Pressurize supply piping system by either using compressed air or INSTALLING opening propane/LP supply tank valve. Continued 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 LOGS INSTALLING Continued WARNING 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 FOR YOUR SAFETY READ BEFORE LIGHTING HEATER WARNING Thermostat- If you do not follow these instructions exactly, a fire or explosion may Controlled Models 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 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the OPERATING floor. If you smell gas, STOP! Follow “B” in the safety information on page 20. If HEATER you don’t smell gas, go to the next step. 5.
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Page 22: Operating Heater (Variable Manually-Controlled Models)
OPERATING THERMOSTAT CONTROL OPERATION (Thermostat-Controlled Models Only) HEATER The thermostat control knob can be set to any comfort level between Hi and Lo. The Thermostat- thermostat will gradually modulate the heat output and flame height from higher to Controlled Models lower settings, or pilot, in order to maintain the comfort level you select. - Page 23 OPERATING NOTICE During initial operation of new heater, burning logs will give off a paper- HEATER burning smell. Orange flame will also be present. Open damper or Variable Manually- window to vent smell. This will only last a few hours. Controlled Models Note: Homeowners generally prefer to operate their heater with the chimney damper closed.
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Page 24: Inspecting Burners
OPERATING VARIABLE CONTROL OPERATION HEATER The variable control valve can be set to any heat setting and flame height desired, by simply turning the control knob until that setting is attained. Even the lowest setting Variable Manually- provides realistic flames and glowing embers from two burners. Selecting higher Controlled Models settings produces greater heat output. - Page 25 FRONT BURNER FLAME PATTERN INSPECTING Figure 26 shows correct front burner flame pattern. Figure 25 shows incorrect BURNERS front burner flame pattern. The incorrect burner flame pattern shows yellow tipping at top of blue flame. Continued WARNING If yellow tipping occurs, your heater could produce increased levels of carbon monoxide.
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Page 26: Cleaning And Maintenance
CLEANING WARNING Turn off heater and let cool before cleaning. MAINTENANCE CAUTION You must keep control areas, burners, and circulating air pas- sageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. - Page 27 OBSERVED POSSIBLE TROUBLE- PROBLEM CAUSE REMEDY SHOOTING When ignitor button 1. Gas supply turned off or 1. Turn on gas supply or Continued is pressed, there is manual shutoff valve open manual shutoff spark at ODS/pilot closed valve but no ignition 2.
- Page 28 OBSERVED POSSIBLE TROUBLE- PROBLEM CAUSE REMEDY SHOOTING One or both burners 1. Burner orifice(s) 1. Clean burner(s) (see Continued do not light after clogged Cleaning and Mainte- ODS/pilot is lit nance, page 26) or replace burner orifice(s) 2. Inlet gas pressure is 2.
- Page 29 TROUBLE- WARNING SHOOTING If you smell gas • Shut off gas supply. Continued • 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 30: Optional Positioning Of Thermostat Sensing Bulb
If your log set cycles to pilot, but the room temperature drops to a OPTIONAL lower than ideal comfort level before the log set comes back on, you POSITIONING may want to reposition the thermostat sensing bulb. OF THERMOSTAT The thermostat sensing bulb is located on the gas valve assembly. This location allows the thermostat to keep the room temperature at an ideal comfort level for SENSING BULB most fireplace applications. - Page 31 Thermostat OPTIONAL Sensing Bulb POSITIONING OF THERMOSTAT Adhesive-backed Mounting Clip SENSING BULB For Masonry and Figure 31 - Locating Thermostat Sensing Bulb on Masonry Fireplace Factory-built Metal Fireplace If you have a factory-built metal fireplace, see Figure 32 for location. Continued Thermostat Sensing Bulb...
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Page 32: Technical Service
You may have further questions about installation, operation, or trouble- TECHNICAL shooting. SERVICE If so, contact DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564). CG3324PTA CG3630PTA SPECIFICATIONS Btu (Variable) 20,000/33,000 21,500/36,000 Type Gas Propane/LP Only Propane/LP Only Ignition Piezo... -
Page 33: Replacement Parts
Note: Use only original replacement parts. This will protect your warranty cover- REPLACEMENT age for parts replaced under warranty. PARTS Parts Under Warranty Contact authorized dealers of this product. If they can’t supply original replace- ment part(s), call DESA International’s Technical Service Department at 1-800-323- 5190. -
Page 34: Illustrated Parts Lists
ILLUSTRATED PARTS BREAK- DOWN Variable Manually- Controlled Models 27-1 27-2 CG2618PVA CG3324PVA CG3630PVA 102651... - Page 35 This list contains replaceable parts used in your heater. When ordering parts, follow PARTS LIST the instructions listed under Replacement Parts on page 33 of this manual. Variable Manually- Controlled Models PART NUMBER FOR CG2618PVA CG3324PVA CG3630PVA DESCRIPTION QTY. 102230-01 102230-02 102230-03 Front Log (#1L)
- Page 36 ILLUSTRATED PARTS BREAK- DOWN Thermostat- Controlled Models 7-1 7-2 10-2 10-1 CG3324PTA CG3630PTA 102651...
- Page 37 This list contains replaceable parts used in your heater. When ordering parts, follow PARTS LIST the instructions listed under Replacement Parts on page 33 of this manual. Thermostat- Controlled Models PART NUMBER FOR CG3324PTA CG3630PTA DESCRIPTION QTY. 102230-02 102230-03 Front Log (#1)
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Page 38: Accessories
Purchase these heater accessories from your local dealer. If they can not supply ACCESSORIES 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. MANUAL SHUTOFF VALVE - GA5010 For all models. - Page 39 102651...
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Page 40: Warranty Information
We make no other warranty, expressed or implied. LIMITED WARRANTY COMFORT GLOW VENT-FREE PROPANE/LP GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for one (1) year from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.