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Desa Comfort Glow CGB3930NRA Owner's Operation And Installation Manual

Premium aged split oak and yellow flame unvented (vent-free) natural gas log heaters
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PREMIUM
AGED
SPLIT
OAK AND
YELLOW
FLAME
UNVENTED
(VENT-FREE)
NATURAL
GAS LOG HEATERS
Also Design-Certified
As Vented
Decorative
Appliances
When
Not Used With Hand-Held
Thermostat
Remote
OWNER'S
OPERATION
AND
INSTALLATION
MANUAL
CGD3924NRA
CGB3924NRA
CGB3930NRA
24" and 30"
Remote Ready
(Yellow Flame Model Shown)
Patent Pending
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 sup-
plier., call the fire department.
Installation
and service
must be per-
formed
by a qualified
installer,
ser-
vice agency,
or the gas supplier.
WARNING:
Improper
installation,
ad-
justment,
alteration, service, or mainte-
nancecan
cause injuryor propertydam-
age. Refer to this manual for correct
installation and operational procedures.
For assistance
or additional
informa-
tion consult
a qualified
installer,
ser-
vice agency, or the gas supplier.
WARNING:
This appliance
is for instal-
lation only in e solid-fuel
burning
ma-
sonry or UL127 factory-built
fireplace,
or in an approved
ventless firebox.
It is
design-certified
for these installations
in accordance
with ANS Z21.11.2.
Exception:
Do not install this appli-
ance
in a factory-built
fireplace
that
includes instructions
stating it has not
been tested or should not be used with
unvented
gas logs.
WARNING:
This is an unvented
gas-fired
heater. It uses air (oxygen) from the room in
which it is installed.
Provisions
for adequate
combustion
end ventilation
air must be
provided.
Refer to Air for Combustion
and Ventilationsection
on page 4 of this manual.
This
appliance
may
be
Installed
In an sftermarket*
manufactured
(mobile)
home,
where
not
prohibited
by state or local codes,
* Aftermarket: CompleUon of sale, not for purpose of resale, from the manufacturer.

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Summary of Contents for Desa Comfort Glow CGB3930NRA

  • Page 1 PREMIUM AGED SPLIT OAK AND YELLOW FLAME UNVENTED (VENT-FREE) NATURAL GAS LOG HEATERS Also Design-Certified As Vented Decorative Appliances When Not Used With Hand-Held Thermostat Remote OWNER'S OPERATION INSTALLATION MANUAL CGD3924NRA CGB3924NRA CGB3930NRA 24" and 30" Remote Ready Patent Pending (Yellow Flame Model Shown) WARNING: Improper...

  • Page 2: Safety Information

    UNVENTED NATURAL HEATER 12. Do not use a blower insert, heat ex- SAFETY • immediately call your gas supplier changer insert or other accessory not from a neighbor's phone. Follow the INFORMATION approved for use with this heater. gas supplier's instructions •...
  • Page 3 OWNER'S MANUAL PRODUCT PRODUCT FEATURES IDENTIFICATION OPERATION Crossover Log This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by realistic dancing, yellow flames. This heater is designed for vent-free operation with flue damper closed.
  • Page 4 UNVENTED NATURAL HEATER AIR FOR PROVIDING ADEQUATE Confined Space and Unconfined VENTILATION Space COMBUSTION The Nation al Fuel Gas Code (A NS Z2123.1, The following are excerpts from National VENTILATION Fuel Gas Code. NFPA 54/ANS Z223.1, Sec- 1992 Section 5.3) defines a confined space as a space whose...

  • Page 5: Air For Combustion Ventilation

    OWNER'S MANUAL AIR FOR COMBUSTION VENTILATION Continued DETERMINING FRESH-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 6: Ventilation Air

    UNVENTED NATURAL HEATER 12" COMBUSTION VENTILATION Ventilation Continued Grills Ventilation Grills Into Adjoining Room, Into Adjoining VENTILATION Option 2 Room, Remove Option 1 Door into Ventilation Air From Inside Adjoining Building Room, This fresh air would come from an adjoining Option G unconfined space.

  • Page 7: Installation

    OWNER'S MANUAL INSTALLATION INSTALLATION WARNING: Seal any fresh air CLEARANCES vents or ash clean-out doors lo- NOTICE: This heater Is intended (Vent-Free Operation Only) cated on floor or wall of fireplace. for use as supplemental heat. Use If not, drafting may cause pilot this heater along with your pri- outage or sooting.
  • Page 8 UNVENTED NATURAL HEATER INSTALLATION If Using Mantel if noncombustible material is more than 12", you may need the hood accessory You must have noncombustible material(s) Continued deflect heat away from your mantel shelf. above the fireplace opening. Noncombus- See Figure 5 and Figures 6 and 7 on page 9 tible materials (such as slate, marble, tile, NOTICE: Manual control heaters...

  • Page 9: Floor Clearances

    OWNER'S MANUAL INSTALLATION Mantel Shelf Underside Continued Mantel Shelf MANTEL CLEARANCES In addition to meeting noncombustible mate- All minimum rial clearances, you must also meet required distances clearances between fireplace opening and in inches mantel shelf. If you do not meet the clear- Minimum Non- Combustible...

  • Page 10: Installing Heater Base Assembly

    UNVENTED NATURAL HEATER INSTALLATION Damper Damper Clamp Continued INSTALLING DAMPER CLAMP ACCESSORY VENTED OPERATION Damper Damper _Damper Note: When used as a vented heater, appli- ance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material.
  • Page 11 OWNER'S MANUAL Installation must include a manual shutoff INSTALLATION CONNECTING TO GAS valve, union, and plugged 1/8" NPT tap. SUPPLY Continued Locate NPT tap within reach for test gauge hook up. NFF tap must be upstream from ,_ WARNING: A qualified service Attach base assembly to fireplace floor...

  • Page 12: Checking Gas Connections

    UNVENTED NATURAL HEATER INSTALLING REMOTE INSTALLATION Pressure Testing Heater Gas Connections CEIVER UNIT Continued Open manual shutoff valve (see Fig- Disconnect switch wires from the con- CHECKING ure 14). trol valve. CONNECTIONS Open main gas valve located on or near Remove screws and nuts.
  • Page 13 OWNER'S MANUAL Back Log (#1) Battery Cover INSTALLATION Continued Terminal Wires INSTALLING WIRELESS Hole in Grate Base REMOTECONTROL ACCESSORY )mote Two 9-voh alkaline batteries (not included) are required to operate this heater with the Unit 9-Volt wireless hand held remote control set. One Battery Housing battery must be installed in the receiver and...
  • Page 14 UNVENTED NATURAL HEATER I NSTALLATION g (#2) Each log is marked with a number. These numbers will help you identify the log when Continued Hole in installing. It is very important to install these Grate Base Locate the notches in the bottom of the logs exactly as instructed.

  • Page 15: Operating Heater

    OWNER'S MANUAL Note: Home owners generally prefer to INSTALLATION C. Use only your hand to push in or turn operate their heater with the chimney the gas control knob. Never use tools. Continued damper closed. This will put all the heat If the knob will not push in or turn into the room.
  • Page 16 UNVENTED NATURAL HEATER OPERATING NOTICE: You must light the pilot TO TURN OFF GAS 1 TO APPLIANCE HEATER before using the hand-held re- mote control unit, See Lighting Shutting Off Heater Continued Instructions on page 15. Turn controlknob clockwise With control knob pressed in, press to the OFF position.

  • Page 17: Inspecting Burners

    OWNER'S MANUAL INSPECTING Use the STATUS button on the hand- OPERATING held remote control unit to see the BURNERS HEATER operation mode being used and the temperature setting selected. A red Continued Check pilot flame pattern and burner flame light will come on beside the opera- patterns often.
  • Page 18 UNVENTED NATURAL HEATER CLEANING LOGS Check the injector holder located at the end of the burner tube again. Remove MAINTENANCE • If you remove logs for cleaning, refer to any large particles of dust, dirt, lint, or hzstalling Logs, pages 13 through 15, to pet hairs with a soft cloth or vacuum properly...

  • Page 19: Troubleshooting

    OWNER'S MANUAL TROUBLESHOOTING _i, CAUTION: Never use a wire, WARNING: Turn off heater needle, or similar object to clean and let cool before servicing. Only Note: For additional help, visit DESA ODS/pilot. This can damage ODS/ a qualified service person should International's Technical Service...
  • Page 20 UNVENTED NATURAL HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY 1. Clean burner (see Cleaning and Mainte- Burner does light after ODS/pilot is lit 1. Burner orifice clogged nance, page 18) or replace burner orifice 2. Inlet gas pressure is too low 2.
  • Page 21 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.

  • Page 22: Illustrated Parts Breakdown

    UNVENTED NATURAL HEATER ILLUSTRATED PARTS BREAKDOWN CGD3924NRA lO56;7...

  • Page 23: 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 26 of this manual. CGD3924NRA QTY. PART NUMBER DESCRIPTION 103008-01 Back Log (#1) 103009-01 Middle Log (#2) 103010-01 Front Log (#3) 103011-01...
  • Page 24 UNVENTED NATURAL HEATER ILLUSTRATED PARTS BREAKDOWN CGB3924NRA CGB3930NRA 17< 103677...
  • 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 26 of this manual. CGB3924NRA CGB3930NRA CGB3924NRA CGB3930NRA QTY. PART NUMBER PART NUMBER DESCRIPTION 104897-02 Middle Log (#1) 104897-01 104898-02...

  • Page 26: Replacement Parts

    UNVENTED NATURAL HEATER REPLACEMENT PARTS CENTRAL East Coast Energy Products 707 Broadway PARTS These Parts Centrals are privately owned busi- W. Long Branch, NJ 07764 732-870-8809 nesses. They have agreed to support Note: Use only original replacement parts. 1-800-755-8809 customer's needs by providing original This will protect your warranty coverage...

  • Page 27: Specifications

    OWNER'S MANUAL SPECIFICATIONS ACCESSORIES Btu (Variable) 20,000/39,000 Purchase these fireplace accessories from your local dealer. If they can not supply Type Gas Natural these accessories, either contact your near- Only est Parts Central (see page 28) or call DESA Ignition Piezo International's Sales Department at 1-800-...

  • Page 28: Warranty

    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.

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