Comfort Glow CGD3924P Owner's Operation And Installation Manual
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Comfort Glow CGD3924P Owner's Operation And Installation Manual

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UNVENTED (VENT-FREE)
PROPANE/LP GAS LOG HEATER
(Manually-Controlled 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. 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
OWNER'S OPERATION AND INSTALLATION MANUAL
18", 24", and
30" Variable
Manually-
Controlled
Models
CGD3018P
CGD3924P
CGD3930P
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.
YELLOW FLAME DESIGN
Save this manual for future reference.
Thermostatically-
Controlled Models
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 as-
sistance or additional information con-
sult a qualified installer, service agency,
or the gas supplier.
WARNING: This gas log set is for installa-
tion in a masonry solid fuel burning fire-
place, a U.L. listed manufactured solid fuel
burning fireplace or an AGA design certi-
fied vent-free firebox listed for use with
these gas log models (Including CGFB32C
and CGFB32NC series).
WARNING: This is an unvented gas-fired
heater. It uses air (oxygen) from the room
in which it is installed. Provisions for ad-
equate combustion and ventilation air must
be provided. Refer to Air for Combustion
and Ventilation section in this manual.
24" and 30"
CGD3924PT
CGD3930PT
®
Patent Pending

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Summary of Contents for Comfort Glow CGD3924P

  • Page 1 30" Variable Controlled Models Manually- Controlled CGD3924PT Models CGD3930PT CGD3018P CGD3924P CGD3930P ® Patent Pending WARNING: Improper installation, adjust- WARNING: If the information in this ment, alteration, service, or maintenance manual is not followed exactly, a fire or can cause injury or property damage.

  • 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 ICON G 001 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.

  • Page 4: Product Identification

    PRODUCT Crossover Log Back Log IDENTIFICATION Front Log Burner Middle Log Piezo Ignitor Control Knob Base Grate 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 ventilation air. Read the following instructions to insure proper fresh air for VENTILATION 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 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 VENTILATION National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3 or appli- cable local codes.

  • 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 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 INSTALLATION AND CLEARANCES (Vent-Free Operation Only) Continued WARNING WARNING ICON G 001 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 Ceiling 18", 24", 30"...
  • Page 10 INSTALLING NOTICE You may use this heater as a vented product. If so, you must Continued always run heater with chimney flue damper open. If running heater with damper open, non-combustible material above fire- place opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 13.
  • Page 11 Minimum Non-Combustible Material Clearances INSTALLING (Continued) 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"...
  • Page 12 Determining Minimum Mantel Clearance When Using a Hood INSTALLING If minimum clearances in Figure 6 are not met, you must have a hood. When Continued using a hood there are still certain minimum mantel clearances required. Follow minimum clearances shown in Figure 7 when using hood. Mantel Shelf 12"...

  • 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 HEATER BASE ASSEMBLY INSTALLING WARNING Continued 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 WARNING ICON G 001 If installing in a sunken fireplace, special care is needed.

  • Page 15: Connecting To Gas Supply

    INSTALLING Masonry Screw Continued Mounting Bracket Figure 12 - Attaching Base Assembly to Fireplace Floor CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. CAUTION WARNING ICON G 001 Never connect heater directly to the propane 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.

  • Page 17: Checking Gas Connections

    INSTALLING CAUTION WARNING ICON G 001 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 With 1/8" NPT Tap* From Approved Flexible Gas Meter Gas Hose (if allowed (5"...
  • Page 18 3. Pressurize supply piping system by either using compressed air or INSTALLING opening propane 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.

  • 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 (Manually-Controlled Models)

    OPERATING FOR YOUR SAFETY READ BEFORE LIGHTING HEATER WARNING WARNING ICON G 001 Manually-Controlled If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. Models A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly.
  • Page 21 5. Slightly depress and turn control knob counterclockwise to the PILOT C-clockwise OPERATING position. Press in control knob for five (5) seconds (see Page 20). HEATER Note: You may be running this heater for the first time after hooking up to gas supply.

  • Page 22: Operating Heater (Thermostatically-Controlled Models)

    OPERATING MANUAL LIGHTING PROCEDURE HEATER 1. Follow steps 1 through 5 under Lighting Instructions, pages 20 and 21. 2. Depress control knob and light pilot with match. Continued 3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.
  • Page 23 1. STOP! Read the safety information above. OPERATING 2. Make sure manual shutoff valve is fully open. HEATER 3. Turn control knob clockwise to the OFF position. Clockwise Thermostatically- Controlled Models Continued Control Knob Ignitor Button Figure 23 - Control Knob and Ignitor Button Location 4.

  • Page 24: Inspecting Burners

    OPERATING TO TURN OFF GAS TO APPLIANCE HEATER Shutting Off Heater 1. Turn control knob clockwise to the OFF position. Thermostatically- Clockwise Shutting Off Burners Only (pilot stays lit) Controlled Models 1. Turn control knob clockwise to the PILOT position. Clockwise Continued THERMOSTAT CONTROL OPERATION...

  • Page 25: Cleaning And Maintenance

    CLEANING WARNING WARNING ICON G 001 Turn off heater and let cool before cleaning. MAINTENANCE CAUTION WARNING ICON G 001 You must keep control areas, burner, and circulating air passage- ways of heater clean. Inspect these areas of heater before each use.
  • Page 26 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 27 OBSERVED POSSIBLE TROUBLE- PROBLEM CAUSE REMEDY SHOOTING Burner does light 1. Burner orifice clogged 1. Clean burner (see Continued after ODS/pilot is lit Cleaning and Mainte- nance, page 25) or replace burner orifice 2. Inlet gas pressure is 2. Contact local propane too low gas company 3.
  • Page 28 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.

  • Page 29: Optional Positioning Of Thermostat Sensing Bulb

    If your log set cycles to pilot, but the room temperature drops to a lower than OPTIONAL ideal comfort level before the log set comes back on, you may want to POSITIONING reposition the thermostat sensing bulb. The thermostat sensing bulb is located near the gas valve assembly on the mounting bracket.
  • Page 30 Thermostat OPTIONAL Sensing Bulb POSITIONING Adhesive-backed Mounting Clip THERMOSTAT SENSING BULB Figure 30 - Locating Thermostat Sensing Bulb on Masonry Fireplace For Masonry and Factory-built If you have a factory-built metal fireplace, see Figure 31 for location. Metal Fireplace Thermostat Continued Sensing Bulb Adhesive-backed...

  • Page 31: Technical Service

    You may have further questions about installation, operation, or troubleshooting. TECHNICAL If so, contact DESA International’s Technical Service Department at SERVICE 1-800-DESA LOG (1-800-337-2564). 18" Model 24" Models 30" Models SPECIFICATIONS Btu (Variable) 16,000/30,000 20,000/39,000 20,000/39,000 Type Gas Propane Only Propane Only Propane Only Ignition...

  • Page 32: 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-DESA LOG (1-800-337-2564).

  • Page 33: Accessories

    Purchase these fireplace accessories from your local dealer. If they can not supply ACCESSORIES these accessories, call DESA International’s Sales Department at 1-800-472-7879 for referral information. You can also write to the address listed on the back page of this manual. MANUAL SHUTOFF VALVE - GA5010 For all models.

  • Page 34: Illustrated Parts Lists

    ILLUSTRATED PARTS BREAKDOWN Variable Manually- Controlled Models CGD3018P CGD3924P CGD3930P 20-2 20-1 103604...
  • 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 32 of this manual. CGD3018P CGD3924P CGD3930P PART NUMBER PART NUMBER PART NUMBER DESCRIPTION QTY. 103008-02 103008-01...
  • Page 36 ILLUSTRATED PARTS BREAKDOWN Thermostatically- Controlled Models CGD3924PT CGD3930PT 20-2 20-1 103604...
  • 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 32 of this manual. CGD3924PT CGD3930PT PART NUMBER PART NUMBER DESCRIPTION QTY. 103008-01 103008-03 Back Log (#1) 103009-01 103009-03 Middle Log (#2)
  • Page 38 NOTES ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 103604...
  • Page 39 NOTES ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ 103604...

  • Page 40: Warranty Information

    We make no other warranty, expressed or implied. LIMITED WARRANTY COMFORT GLOW VENT-FREE PROPANE GAS LOG 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.

This manual is also suitable for:

Cgd3018pCgd3930pCgd3924ptCgd3930pt

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