Comfort Glow CGD3018N Owner's Operation And Installation Manual

Comfort Glow CGD3018N Owner's Operation And Installation Manual

Yellow flame design unvented (vent-free) natural gas log heater 18/24/30" variable manually-controlled 24" thermostatically controlled

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YELLOW FLAME DESIGN
UNVENTED (VENT-FREE)
NATURAL GAS LOG HEATER
Manually-Controlled
Models Also Designed
Certified as Vented Decorative
Appliance)
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
CGD3018N
CGD3924N
CGD3930N
24"
Thermostatically-
Controlled
Model
CGD3924NT
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.
m
Installation
and service
must be per-
formed by a qualified
installer, service
agency,
or the gas supplier.
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
consult
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
or a U.L. listed manufactured
solid fuel burning fireplace.
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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  • Page 1 OWNER'S OPERATION AND INSTALLATION MANUAL 18", 24", and 24" 30" Variable Thermostatically- Manually- Controlled Model Controlled CGD3924NT Models CGD3018N CGD3924N CGD3930N WARNING: Improper installation, adjust- WARNING: If the information in this ment, alteration, service, or maintenance manual is not followed...
  • Page 2: Table Of Contents

    CONTENTS SECTION PAGE Safety Information ................... Product Identification ................Local Codes ..................... Unpacking ....................Product Features ..................Air for Combustion and Ventilation ............Installing ....................Check Gas Type ................Installation and Clearances (Vent-Free Operation Only) ....Installing Damper Clamp Accessory for Vented Operation ....
  • Page 3 WARNINGS Continued SAFETY 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 INFORMATION appliance is not convertible for use with other gases. Continued 2.
  • Page 4: Product Identification

    PRODUCT Crossover Back Log IDENTIFICATION Front Log J- Burner Piez_ Ignitor _ Base Grate Figure 1 - Vent-Free Gas Log Heater LOCAL CODES 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: Air For Combustion And Ventilation

    AIR FOR WARNING 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.
  • Page 6 AIR FOR DETERMINING AIR FLOW FOR HEATER LOCATION COMBUSTION 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 VENTILATION doorless...
  • Page 7 AIR FOR WARNING 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.
  • 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 solid fuel burning fireplace, the chimney flue and firebox...
  • Page 9: Installation And Clearances (Vent-Free Operation Only)

    INSTALLING INSTALLATION CLEARANCES (Vent-Free Operation Only) Continued WARNING Maintain the minimum clearances. If you can, provide greater clear- ances from f oor, ceiling, and adjoining wall. MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Side Wall Ceiling 16" 42" SIZING REQUIREMENTS Minimum Firebox Size Size Height Depth...
  • Page 10 INSTALLING NOTICE Continued You may use this heater 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 fire- place opening is not needed. Go to Installing Damper Clamp Accessory...
  • Page 11 INSTALLING Minimum Non Combustible Material Clearances If Using Mantel Contmued 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 no. combustible material behind it, Non combustible material must extend at least 8 inches up (for all models).
  • Page 12 INSTALLING Mantel Shelf 12" Underside of Continued Mante_Shelf All minimum distances in inches Minimum Non* Combustible Log Set Material 8" 12" 15" 18" -_0"-e-.-18", 24", 30" Min. Models Top of Fireplace Opening Hood Distances to (GA6050, GA6052) Underside Mantel Figure 7. Minimum Mantel Clearances When Using Hood If your installation...
  • Page 13: Installing Damper Clamp Accessory For Vented Operation

    INSTALLING INSTALLING DAMPER CLAMP ACCESSORY 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 WARNING Continued 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...
  • Page 15 INSTALLING Heater Gas Contmued j/Regulator Fitting Flexible Gas Hose (if allowed by local codes) Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator Masonry Screw Mounting Bracket Figure 12 - Attaching Base Assembly to Fireplace Floor 102990...
  • Page 16: Connecting To Gas Supply

    INSTALLING CONNECTING TO GAS SUPPLY ContMued NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. Installation Items Needed Before installing heater, make sure you have the items listed below. • piping (check local codes) •...
  • 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 Gas Meter Gas Hose (if allowed (5" W.C.** to by local codes) 10.5"...
  • Page 18 INSTALLING 3. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter. 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 INSTALLING LOGS Contmued Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in WARNING 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 Manually- 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 OPERATING 5. Slightly depress and turn control knob counterclockwise to the PILOT 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 Model)

    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 matcb. Manually- 3. Kee I) control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.
  • Page 23: Inspecting Burners

    OPERATING TO TURN OFF GAS TO APPLIANCE HEATER Shutting Off Heater 1. Turn control knob clockwise _ to the OFF position. Thermostatically- Shutting Off Burners Only (pilot stays lit) Controlled Model 1. Turn control knob clockwise _ to the PILOT position. Continued THERMOSTAT CONTROL...
  • Page 24 OPERATING 1. STOP! Read the safety information above. HEATER 2. Make sure manual shutoff valve is fully open. 3. Turn control knob clockwise _ to the OFF position. Thermostatically- Controlled Model Continued -Control Knob Ignitor Button Figure 22 - Control Knob and Ignitor Button Location 4.
  • Page 25: Cleaning And Maintenance

    CLEANING WARNING Turn off heater and let cool before cleaning. MAINTENANCE CAUTION You must keep control areas, burner, and circulating air passage- ways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person.
  • Page 26 TROUBLE- OBSERVED POSSIBLE PROBLEM CAUSE REMEDY SHOOTING When ignitor button 1. Gas supply turned offor 1. Turn on gas supply or Continued manual shutoff valve is pressed, there is open manual shutoff closed valve spark at ODS/pilot 2. Control knob not in but no ignition 2.
  • Page 27 TROUBLE- OBSERVED POSSIBLE PROBLEM CAUSE REMEDY SHOOTING Burner does light 1. Burner orifice clogged 1. Clean burner(see Continued after ODS/pilot is lit Cleaning and Ma&te- mince, page 25)or replace burner orifice 2. Inlet gas pressure 2. Contact local natural gas too low 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...
  • Page 29: Optional Positioning Of Thermostat Sensing Bulb

    If your log set cycles to pilot, but the room temperature drops to a lower OPTIONAL than 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 Mounting Clip THERMOSTAT SENSING BULB Figure 29. Locating Thermostat Sensing Bulb on Masonry Fireplace For Masonry and Factory-built If you have a factory-buih rneta firep ace, see Figure 30 for location. Metal Fireplace Thermostat Continued Sensing Bulb Adhesive-backed Mounting Clip...
  • Page 31: Technical Service

    TECHNICAL You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International's Technical Service Department SERVICE 1-800-DESA LOG (1-800-337-2564). SPECIFICATIONS 18" Model 24" Models 30" Model Btu (Variable) 16,000/30,000 20,000/39,000 20,000/39,0000 Type Gas Natural Gas Only Natural Gas Only Natural Gas Only Ignition...
  • Page 32: Replacement Parts

    REPLACEMENT Note: Use only original replacement parts. This will protect your warranty cover- 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 1-800-DESA...
  • Page 33: Accessories

    ACCESSORIES Purchase these fireplace accessories from your local dealer. If they can not supply these accessories, call DESA International's Sales Department at 1-800-972-7879 for referral information. You can also write to the address listed on the back page of this manual. MANUAL SHUTOFF VALVE - GA5010...
  • Page 34: Illustrated Parts Lists

    ILLUSTRATED PARTS BREAKDOWN Variable Manually- Controlled Models CGD3018N CGD3924N CGD3930N 20-1...
  • Page 35 PARTS LIST This list contains replaceahte parts used in your heater. When ordering parts, follow the instructions listed under Parts on page 28 of this manual. Replacement CGD3018N CGD3924N CGD3930N PARTNUMBER PART NUMBER PART NUMBER DESCRIPTION QTY. 103008-02 103008-01 103008-03...
  • Page 36 ILLUSTRATED PARTS BREAKDOWN Thermostatically- Controlled Manuals CGD3924NT 20-1...
  • Page 37 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 33 of this manual, CGD3924NT PARTNUMBER DESCRIPTION QTY. 103008-01 Back Log (#1) 103009-01 Middle Log (#2) 103010-01 Front Log (#3) 103011-01 Crossover Log (#4)
  • Page 38 NOTES...
  • Page 39 NOTES 102990...
  • Page 40: Warranty Information

    WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty.

This manual is also suitable for:

Cgd3924nCgd3930nCgd3924ntCgd3924nCgd3930nCgd3924nt

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