V ariably Control Models Also Designed Certified as V ented 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 INSTALLA TION MANUAL
LO
PILOT
OFF
HI
®
CG3324NT A, CG3630NTA, CG2618NVA, CG3324NVA, and CG3630NVA
Thermostat and V ariably-Controlled Models
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 supplier, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency, or the gas supplier.
WARNING: Improper installation, adjustment, alteration, service, or maintenance
can cause injury or property damage.
Refer to this manual for correct installation 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 installation 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 gasfired heater. It uses air (oxygen) from
the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. Refer to
Warranty Information .............................................................................. Back Cover
SAFETY
INFORMATION
2
W ARNINGS
IMPORTANT: Read this owner’s manual carefully and completely before
trying to assemble, operate, or service this heater. Improper use of this
heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.
DANGER
Carbon monoxide poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the
flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be
working properly. Get fresh air at once! Have heater serviced. Some people are more
affected by carbon monoxide than others. These include pregnant women, people with heart
or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.
Natural Gas: Natural gas is odorless. An odor-making agent is added to the gas. The odor
helps you detect a gas leak. However, the odor added to the gas can fade. Gas may be present
even though no odor exists.
Make certain you read and understand all Warnings. Keep this manual for reference. It is
your guide to safe and proper operation of this heater.
Safety Information continues on next page
102650
Page 3
SAFETY
INFORMATION
Continued
W ARNINGS
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. 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
• if you cannot reach your gas supplier, call the fire department
3. This heater shall not be installed in a bedroom or bathroom.
4. Never install the heater
• in a recreational vehicle
• where curtains, furniture, clothing, or other flammable objects are less than 36
inches from the front, top, or sides of the heater
• in high traffic areas
• in windy or drafty areas
5. 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. Creosote
will ignite if highly heated. Inspect chimney flue for damage. If damaged, operate heater
with flue damper closed.
6. If fireplace has glass doors, never operate this heater with glass doors closed. If you
operate heater with doors closed, heat buildup inside fireplace will cause glass to burst.
Also if fireplace opening has vents at the bottom, you must open the vents before
operating heater.
7. You must operate this heater with a fireplace screen in place. Make sure fireplace screen
is closed before running heater.
8. This log heater is designed to be smokeless. If logs ever appear to smoke, turn off heater
and call a qualified service person.
occur due to log curing and heater burning manufacturing residues.
9. Do not allow fans to blow directly into the fireplace. Avoid any drafts that alter burner
flame patterns. Ceiling fans can create drafts that alter burner flame patterns. Altered
burner patterns can cause sooting.
10. Do not use a blower insert, heat exchanger insert or other accessory not approved for use
with this heater.
11. This heater needs fresh, outside air ventilation to run properly. This heater has an oxygen
depletion sensor (ODS) pilot light safety system. The ODS shuts down the heater if not
enough fresh air is available. See Air for Combustion and Ventilation, pages 5 through
7. If heater keeps shutting off, see Troubleshooting, pages 26 through 29.
12. Do not run heater
• where flammable liquids or vapors are used or stored
• under dusty conditions
13. Do not use this heater to cook food or burn paper or other objects.
14. Never place any objects on the heater.
15. Heater base assembly becomes very hot when running heater. Keep children and adults
away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a
time after shutdown. Allow surface to cool before touching.
16. Carefully supervise young children when they are in the room with heater.
17. Do not use heater if any part has been exposed to or under water. Immediately call a
qualified service technician to inspect the room heater and to replace any part of the
control system and any gas control which has been under water.
18. Do not operate heater if any log is broken. Do not operate heater if a log is chipped (dimesized or larger).
19. Turn heater off and let cool before servicing. Only a qualified service person should
service and repair heater.
20. Operating heater above elevations of 4,500 feet could cause pilot outage.
Note:
During initial operation, slight smoking could
Continued
102650
3
Page 4
PRODUCT
IDENTIFICATION
Front Log
Front
Burner
Left
Branch
Piezo
Ignitor
Rear Log
Rear
Burner
Right
Branch
LOCAL CODES
UNPACKING
PRODUCT
FEATURES
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*.
*Available from:American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Note:
1. Remove logs and heater base assembly from carton.
2. Remove all protective packaging applied to logs and heater for shipment.
3. Check all items for any shipping damage. If damaged, promptly inform dealer
Operation
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 both realistic flames and glowing coals.
This heater is designed for vent-free operation with flue damper closed. State and local
codes in some areas prohibit the use of vent-free heaters. You can operate heater as a
vented product by opening flue damper.
Where listed vented decorative logs are required, thermostat operation is
not permitted.
Note:
base assembly by burners. This could damage heater. Always handle base
assembly by grate.
where you bought heater.
Base Assembly
Do not pick up heater
Safety Device
This heater has a pilot with an Oxygen Depletion Sensor Shutoff System (ODS).
The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot
shuts off the heater if there is not enough fresh air.
Piezo Ignition System
This heater has a piezo ignitor. This system requires no matches, batteries, or other
4
sources to light heater.
102650
Page 5
AIR FOR
WARNING
COMBUSTION
VENTILATION
102650
AND
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. New materials, increased insulation, and new construction methods help reduce heat loss in homes.
Home owners weather strip and caulk around windows and doors to keep the
cold air out and the warm air in. During heating months, home owners want their
homes as airtight as possible.
While it is good to make your home energy efficient, your home needs to breathe.
Fresh air must enter your home. All fuel-burning appliances need fresh air for proper
combustion and ventilation.
Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air
from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances.
PROVIDING ADEQUATE VENTILATION
The following is exerpts from National Fuel Gas Code. NFPA 54/ANSI Z223.1,
Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation classifications: 1. Unusually Tight Contruction; 2. Unconfined Space; 3. Confined Space.
The information on pages 5 through 7 will help you classify your space and provide
adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough fresh air for
combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.
Unusually tight construction is defined as construction where:
a. walls and ceilings exposed to the outside atmosphere have a con-
tinuous water vapor retarder with a rating of one perm or less with
openings gasketed or sealed
b. weather stripping has been added on openable windows and doors
and
c. caulking or sealants are applied to areas such as joints around window
and door frames, between sole plates and floors, between wall-ceiling
joints, between wall panels, at penetrations for plumbing, electrical,
and gas lines, and at other openings.
If your home meets all of the three criteria above, you must provide additional fresh air. See
If your home does not meet all of the three criteria above, proceed to page 6.
Ventilation Air From Outdoors
and
, page 7
.
Unconfined Space
The National Fuel Gas Code, ANSIZ223.1, 1992, Section 5.3 defines uncon-
fined space as having a minimum air volume of 50 cubic feet (127 cubic cm)
for each 1000 Btu/Hr input rating of all appliances in the space (cubic feet
equals length x width x height of space). Include adjoining rooms only if there
are doorless passageways or ventilation grills between the rooms.
Confined Space
The National Fuel Gas Code, ANSIZ223.1, 1992, Section 5.3 defines confined
space as having an air volume of less than 50 cubic feet (127 cubic cm) for
each 1000 Btu/Hr input rating of all appliances in the space (cubic feet equals
length x width x height of space). Include adjoining rooms only if there are
doorless passageways or ventilation grills between the rooms.
Continued
5
Page 6
AIR FOR
COMBUSTION
AND
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.
1. Determine the volume of the space (length x width x height).
Length x Width x Height =___________________cu. ft. (volume of space)
Example:
If additional ventilation to adjoining room is supplied with grills or openings, add the
volume of these rooms to the total volume of the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space
can support.
____________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr
the space can support)
Example:
Btu/Hr the space can support)
3. Add the Btu/Hr of all fuel burning appliances in the space.
Example:
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr
used.
_________________ Btu/Hr (maximum the space can support)
_________________ Btu/Hr (actual amount of Btu/Hr used)
Example:
The space in the above example is a confined space because the actual Btu/Hr used is more
than the maximum Btu/Hr the space can support. You must provide additional fresh air.
Your options are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the extra space provides
an unconfined space, remove door to adjoining room or add ventilation grills between
rooms. See Ventilation Air From Inside Building, page 7.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 7.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the
space is an unconfined space. You will need no additional fresh air ventilation.
Space size20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) =
2560 cu. ft. (volume of space)
2560 cu. ft. (volume of space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum
Vent-free heater___________________ Btu/Hr
Gas water heater*___________________ Btu/Hr
Gas furnace___________________ Btu/Hr
Vented gas heater___________________ Btu/Hr
Gas fireplace logs___________________ Btu/Hr
Other gas appliances*+ ___________________ Btu/Hr
Total= ___________________ Btu/Hr
Gas water heater40,000Btu/Hr
Vent-free heater+33,000Btu/Hr
Total=73,000Btu/Hr
51,200Btu/Hr (maximum the space can support)
73,000Btu/Hr (actual amount of Btu/Hr used)
6
102650
Page 7
AIR FOR
COMBUSTION
AND
VENTILATION
Continued
W ARNING
If the area in which the heater may be operated is smaller than
that defined as an unconfined space, provide adequate combustion and ventilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfined space. When ventilating to an
adjoining unconfined space, you must provide two permanent openings: one within 12" of
the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options
1 and 2, Figure 2). You can also remove door into adjoining room (see option 3, Figure 2).
Follow the National Fuel Gas Code NFPA 54/ANSI Z223.1, Section 5.3, Air for Combustionand Ventilation for required size of ventilation grills or ducts.
W ARNING
Rework worksheet, adding the space of the adjoining unconfined
space.
appliances in both spaces.
The combined spaces must have enough fresh air to supply all
12"
Ventilation
Grills
Into Adjoining
Room,
Option 1
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
Figure 2 - Ventilation Air from Inside Building
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect
these items directly to the outdoors or spaces open to the outdoors. These spaces include
attics and crawl spaces.
IMPORTANT:
thermostat-controlled power vent. Heated air entering the attic will activate the power
Do not provide openings for inlet or outlet air into attic if attic has a
Ventilated
Attic
To Attic
Outlet
Air
Outlet
Air
102650
To
Crawl
Inlet
Air
Inlet Air
Ventilated
Crawl Space
Space
Figure 3 - Ventilation Air from Outdoors
7
Page 8
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.
W ARNING
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. Creosote will ignite if highly
heated. Inspect chimney flue for damage. If damaged, operate
heater with flue damper closed.
W ARNING
Seal any fresh air vents or ash clean-out doors located on floor or
wall of fireplace. If not, drafting may cause pilot outage or sooting.
Use a heat-resistant sealant. Do not seal chimney flue damper.
W ARNING
Never install the heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, clothing, or other flammable objects are
less than 36 inches from the front, top, or sides of the heater
• in high traffic areas
• in windy or drafty areas
CAUTION
This heater creates warm air currents. These currents move heat
to wall surfaces next to heater. Installing heater next to vinyl or
cloth wall coverings or operating heater where impurities in the
air (such as tobacco smoke) exist, may discolor walls.
IMPORTANT:
cial, installing heater in rooms without enough ventilation air may cause mildew to
form from too much moisture. See Air for Combustion and Ventilation, pages 5
through 7.
CHECK GAS TYPE
Use only natural gas. If your gas supply is not natural gas, do not install heater.
Call dealer where you bought heater for proper type heater.
Vent-free heaters add moisture to the air. Although this is benefi-
8
102650
Page 9
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.
Carefully follow the instructions below. This will ensure safe installation into a
masonry or U.L. listed manufactured fireplace.
Minimum Wall and Ceiling Clearances (see Figure 4)
A. Clearances from the side of the fireplace opening to any combustible wall
should not be less than 16 inches.
B. Clearances from the top of the fireplace opening to the ceiling should not be
less than 42 inches.
42"
16"
102650
Figure 4 - Minimum Clearance to Wall and Ceiling
Continued
9
Page 10
INSTALLING
NOTICE
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
Clamp Accessory for Vented Operation,
Installing Damper
page 13.
Minimum Non Combustible Material Clearances
If Not Using Mantel
Note:
If using a mantel, go to page 11. If not using a mantel, follow the informa-
tion on this page.
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" up (for all models). If non combustible material is less than 12", you must install the fireplace hood accessory (24"
and 30" models only). See chart below and Figure 5 for minimum clearances.
IMPORTANT:
If you cannot meet these minimum clearances, you must operate
heater with chimney flue damper open. Go to Installing Damper Clamp Accessoryfor Vented Operation, page 13.
Non-CombustibleRequirements for
Material Distance (A)Safe Installation
12" or moreNon combustible material OK.
Between 8" and 12"24" or 30" Models: Install fireplace hood acessory
(GA6050 or GA6052, see
18" Model: Non combustible material OK.
Less than 8"Non-combustible material must be extended to at
least 8". See
cannot extend material, you must operate heater
with flue damper open.
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). If non
combustible material is less than 12", you must install the fireplace hood accessory
(24" and 30" models only). Even if non combustible material is more than 12", you
may need the hood accessory to deflect heat away from your mantel shelf. See
chart below and Figures 6 and 7 for minimum clearances.
IMPORTANT:
If you cannot meet these minimum clearances, you must operate
heater with chimney flue damper open. Go to Installing Damper Clamp Accessoryfor Vented Operation, page 13.
Non-CombustibleRequirements for
Material Distance (A)Safe Installation
12" or moreNon combustible material OK.
Between 8" and 12"24" or 30" Models: Install fireplace hood acessory
(GA6050 or GA6052, see
Accessories,
page 38).
18" Model: Non combustible material OK.
Less than 8"Non combustible material must be extended to at
least 8". See
Between 8" and 12",
above. If you
cannot extend material, you must operate heater with
flue damper open.
Mantel Clearances
If you meet minimum clearance between mantel shelf and top of fireplace opening, a hood is not required (see Figure 6).
Mantel Shelf
10"
8"
6"
2
1
/2
"
Underside of
Mantel Shelf
If above minimum clearances are not met, you must have a hood. Follow
minimum clearances shown in Figure 7 when using hood.
102650
Minimum NonCombustible
Material
Figure 6 - Minimum Mantel Clearances Without Using Hood
(A)
12"
8"
Minimum NonCombustible
Material Height
20"
14"
1
24
/2
"
27
3
16
/4
"
18
Distances to
Underside of
Mantel
All minimum
distances are
in inches
1
/2
"
30"
1
/2
"
20"
Log Set
24"/30" Models
18" Model
Top of Fireplace
Opening
Continued
11
Page 12
Mantel Shelf
INSTALLING
Continued
Minimum NonCombustible
Material
12"
10"
8"
6"
1
"
/2
2
8"
Min.
Hood
(GA6050, GA6052)
12"15"18"
Distances to
Underside of
Mantel
Underside of
Mantel Shelf
All minimum
distances are
in inches
Log Sets
18", 24",
20"
& 30" Models
Top of Fireplace
Opening
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
• raise the mantel to an acceptable height, OR
• remove the mantel.
Floor Clearances
A. If installing appliance on the floor level, you must maintain the minimum
distance of 14" to combustibles (see Figure 8).
Combustible
14"
Material
Min.
Non-Combustible
Material
Figure 8 - Minimum Fireplace Clearances If Installed at Floor Level
B. If combustible materials are less than 14" to the fireplace, you must install
appliance at least 5" above the combustible flooring (see Figure 9).
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. There are three reasons for operating your heater in the vented mode.
1. The fireplace does not meet the clearance to combustibles requirements for
vent-free operation.
2. State or local codes do not permit vent-free operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you, you must permanently open chimney flue
damper. You must install the damper clamp accessory (to order, see Accessories, page
31). This will insure vented operation (see Figure 10). The damper clamp will keep
damper open. Installation instructions are included with clamp accessory.
See chart below for minimum permanent flue opening you must provide. Attach
damper clamp so the minimum permanent flue opening will be maintained at all
times.
You must secure this heater to fireplace floor. If not, heater will move
when you adjust controls. Moving heater may cause a gas leak.
W ARNING
If installing in a sunken fireplace, special care is needed. You
must raise the fireplace floor to allow access to heater control
panel. This will insure adequate air flow and guard against sooting. Raise fireplace floor with non-combustible material. Make
sure material is secure.
CAUTION
Do not pick up heater base assembly by burners. This could
damage heater. Only handle base assembly by grates.
IMPORTANT:
will not work properly. For thermostat models, avoid damage to thermostat bulb.
Avoid nicks or sharp bends in thermostat bulb wire. Keep thermostat bulb in
mounting bracket.
Installation Items Needed
• hardware package (provided with heater)
• approved flexible gas hose (not provided) (if allowed by local codes)
• sealant (resistant to LP gas, not provided)
• electric drill with 3/16" drill bit
Make sure the heater burners are level. If heater is not level, heater
1. Apply pipe joint sealant lightly to male threads of gas regulator. Connect
approved flexible gas hose to gas regulator of heater (see Figure 11).
IMPORTANT:
2. Locate mounting brackets, bolts, and nuts in hardware package. Attach mounting brackets to heater base (see Figure 12). Attach nuts finger tight.
3. Position heater base assembly in fireplace.
4. Mark screw locations through holes in mounting brackets. If installing in a
brick-bottom fireplace, mark screw locations in mortar joint of bricks.
5. Remove heater base from fireplace. Remove mounting brackets from heater base.
6. Drill holes at marked locations using 3/16" drill bit.
7.
Attach mounting brackets to fireplace floor using masonry screws (in hardware
package).
8. Reattach heater base to mounting brackets. Tighten nuts firmly.
9. Connect to gas supply. See Connecting To Gas Supply, page 16.
Hold gas regulator with wrench when connecting flexible gas hose.
14
102650
Page 15
INSTALLING
Continued
Heater Gas
Regulator
Flexible Gas Hose (if
allowed by local codes)
Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator
Masonry Screw
Figure 12 - Attaching Mounting Brackets to Heater
Mounting
Bracket
102650
15
Page 16
INSTALLING
CONNECTING TO GAS SUPPLY
Continued
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)
• sealant (resistant to LP gas)
• manual shutoff valve *
• test gauge connection *
* An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable
alternative to test gauge connection. Purchase the optional A.G.A. design-certified
manual shutoff valve from your dealer. See Accessories, page 38.
• sediment trap
• tee joint
• pipe wrench
W ARNING
Never connect heater to private (non-utility) gas wells. This gas is
commonly known as wellhead gas.
CAUTION
Use only new, black iron or steel pipe. Internally-tinned copper
tubing may be used in certain areas. Check your local codes. Use
pipe of 1/2" diameter or greater to allow proper gas volume to
heater. If pipe is too small, undue loss of pressure will occur.
Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap.
Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream
from heater (see Figure 13, page 17).
Apply pipe joint sealant lightly to male threads. This will prevent excess sealant
from going into pipe. Excess sealant in pipe could result in clogged heater valves.
CAUTION
Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.
Install sediment trap in supply line as shown in Figure 13, page 17. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where
trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not
installed or is installed wrong, heater may not run properly.
16
102650
Page 17
INSTALLING
Continued
CAUTION
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
Gas Meter
(5" W.C.** to
10.5" W.C.
Pressure)
Tee Joint
With 1/8" NPT Tap*
Approved Flexible
Gas Hose (if allowed
by local codes)
Gas
Regulator
Pipe
Nipple
Cap
Sediment
Trap
3" Minimum
Figure 13 - Gas Connection
* Purchase the optional A.G.A. design-certified manual shutoff valve from your
dealer. See Accessories, page 38.
** Minimum inlet pressure for purpose of input adjustment.
CHECKING GAS CONNECTIONS
W ARNING
Test all gas piping and connections for leaks after installing or
servicing. Correct all leaks at once.
W ARNING
Never use an open flame to check for a leak. Apply a mixture of
liquid soap and water to all joints. Bubbles forming show a leak.
Correct all leaks at once.
Pressure Testing gas Supply Piping system
Test Pressures In Excess Of 1/2 PSIG
1. Disconnect heater and its individual manual shutoff valve from gas supply
2. Cap off open end of gas pipe where manual shutoff valve was connected.
3. Pressurize supply piping system by either using compressed air or opening
4. Check all joints of gas supply piping system. Apply mixture of liquid soap and
5. Correct all leaks at once.
6. Re-connect heater and manual shutoff valve to gas supply. Check re-connected
102650
piping system. Pressures in excess of 1/2 psig will damage heater regulator.
main gas valve located on or near gas meter.
water to gas joints. Bubbles forming show a leak.
fittings for leaks.
Continued
17
Page 18
INSTALLING
ON
POSITION
OFF
POSITION
Continued
Test Pressures Equal To or Less Than 1/2 PSIG
1. Close manual shutoff valve (see Figure 14).
2. Pressurize supply piping system by either using compressed air or opening
main gas valve located on or near gas meter.
3. Check all joints from gas meter to manual shutoff valve (see Figure 15). Apply
mixture of liquid soap and water to gas joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Pressure Testing Heater Gas Connections
1. Open manual shutoff valve (see Figure 14).
2. Open main gas valve located on or near gas meter.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from manual shutoff valve to thermostat gas valve (thermostatcontrolled models) or control valve (variably-controlled models) (see Figure
15). Apply mixture of liquid soap and water to gas joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, pages 20 through 22 [Thermostat-Controlled Models] or pages 22 through 24 [Variable Manually-Controlled Models]). Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 21 [ThermostatControlled Models] or page 24 [Variable Manually-Controlled Models]).
Manual
Shutoff
Valve
Gas Meter
Open
Closed
Figure 14 - Manual Shutoff Valve
Manual
Shutoff
Valve
Thermostat Gas Valve or
Control Valve Location
18
Figure 15 - Checking Gas Joints
102650
Page 19
INSTALLING
INSTALLING LOGS
Continued
W ARNING
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. It is very important to install these logs exactly as instructed. Do
not modify logs. Only use logs supplied with heater.
1. Slide front log (#1) into place behind front burner. Make sure tabs at bottom of
log are behind front burner (see Figure 16).
2 . Slide rear log (#2) into place behind rear burner (see Figure 17).
3. Place left front branch (#4) and right front branch (#5) (24" and 30" models) or
front branch (#4) (18" model) into place (see Figure 18). Make sure notches on
bottom rest on grates.
4. Add lava rock around base of heater.
Front Log (#1)
Tab
102650
Figure 16 - Installing Front Log
Rear Log (#2)
Figure 17 - Installing Rear Log
Left Branch (#4)
Right Branch (#5)
Figure 18 - Installing Rear Log
19
Page 20
OPERATING
HEATER
Thermostat-
Controlled Models
FOR YOUR SAFETY READ BEFORE LIGHTING
W ARNING
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.
B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell
next to the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric 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.
C. Use only your hand to push in or turn the gas control knob. Never use tools. If the
knob will not push in or turn by hand, don’t try to repair it, call a qualified service
technician or gas supplier. Force or attempted repair may result in a fire or
explosion.
D. Do not use this appliance if any part has been under water. Immediately call a
qualified service technician to inspect the appliance and to replace any part of the
control system and any gas control which has been under water.
LIGHTING INSTRUCTIONS
W ARNING
• If fireplace has glass doors, never operate this heater with glass doors
closed. If you operate heater with doors closed, heat buildup inside
fireplace will cause glass to burst. Also if fireplace opening has vents at
the bottom, you must open the vents before operating heater.
• You must operate this heater with a fireplace screen in place. Make sure
fireplace screen is closed before running heater.
NOTICE
During initial operation of new heater, burning logs will give off a paperburning smell. Orange flame will also be present. Open damper or
window to vent smell. This will only last a few hours.
Note:
Homeowners generally prefer to operate their heater with the chimney damper
closed. This will put all the heat into the room. However there may be times you will
desire the full flames of the Hi heat setting but will find the heat output excessive. You
can open the chimney damper (if you have one) fully or partially to release some of
the heat. WARNING: Damper handle will be hot if heater has been running.
1. STOP! Read the safety information above.
2. Make sure manual shutoff valve is fully open.
3. Turn control knob clockwise to the OFF position.
Ignitor Button
20
Control Knob
Figure 19 - Control Knob and Ignitor Button Location
102650
Page 21
OPERATING
HEATER
Thermostat-
Controlled Models
Continued
4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the
floor. If you smell gas, STOP! Follow “B” in the safety information on page 20. If
you don’t smell gas, go to the next step.
5. Turn control knob counterclockwise to the PILOT position. Press in
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.
6. With control knob pressed in, press and release ignitor button. This will light
pilot. The pilot is attached to the front burner. If needed, keep pressing ignitor
button until pilot lights.
Note:
If pilot does not stay lit, contact a qualified service person or gas supplier
for repairs. Until repairs are made, light pilot with match. To light pilot with
match, see Manual Lighting Procedure, page 22.
7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
Note:
If pilot goes out, repeat steps 3 through 7. This heater has a safety
interlock system. Wait one (1) minute for system to reset before lighting pilot
again.
Thermocouple
• If control knob does not pop out when released, contact a qualified service
person or gas supplier for repairs.
8. Turn control knob counterclockwise to desired heating level. The
burners should light. Set control knob to any heat level between HI and LO.
Ignitor Electrode
Pilot Burner
Figure 20 - Pilot
CAUTION
Do not try to adjust heating levels by using the manual shutoff valve.
Shutting Off Heater
1. Turn control knob clockwise to the OFF position.
Shutting Off Burners Only (pilot stays lit)
1. Turn control knob clockwise to the PILOT position.
102650
TO TURN OFF GAS TO APPLIANCE
Continued
21
Page 22
OPERATING
HEATER
Thermostat-
Controlled Models
Continued
THERMOSTA T CONTROL OPERATION
(Thermostat-Controlled Models Only)
The thermostat control knob can be set to any comfort level between Hi and Lo. The
thermostat will gradually modulate the heat output and flame height from higher to
lower settings, or pilot, in order to maintain the comfort level you select. The ideal
comfort setting will vary by household depending upon the amount of space to be
heated, the output of the central heating system, etc.
Note:
Selecting the Hi setting with the control knob will cause the burner to remain
fully on, without modulating down in most cases.
MANUAL LIGHTING PROCEUDRE
1. Follow steps 1 through 5 under Lighting Instructions, pages 20 and 21.
2. Depress control knob and light pilot with match.
3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8, page 21.
OPERATING
HEATER
V ariable ManuallyControlled Models
FOR YOUR SAFETY READ BEFORE LIGHTING
W ARNING
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.
B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell
next to the floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric 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.
C. Use only your hand to push in or turn the gas control knob. Never use tools. If the
knob will not push in or turn by hand, don’t try to repair it, call a qualified service
technician or gas supplier. Force or attempted repair may result in a fire or
explosion.
D. Do not use this appliance if any part has been under water. Immediately call a
qualified service technician to inspect the appliance and to replace any part of the
control system and any gas control which has been under water.
• If fireplace has glass doors, never operate this heater with glass doors
closed. If you operate heater with doors closed, heat buildup inside
fireplace will cause glass to burst. Also if fireplace opening has vents at the
bottom, you must open the vents before operating heater.
• You must operate this heater with a fireplace screen in place. Make sure
fireplace screen is closed before running heater.
22
LIGHTING INSTRUCTIONS
W ARNING
102650
Page 23
OPERATING
HEATER
V ariable ManuallyControlled Models
Continued
NOTICE
During initial operation of new heater, burning logs will give off a paperburning smell. Orange flame will also be present. Open damper or
window to vent smell. This will only last a few hours.
Note:
Homeowners generally prefer to operate their heater with the chimney
damper closed. This will put all the heat into the room. However there may be times
you will desire the full flames of the High heat setting but will find the heat output
excessive. You can open the chimney damper (if you have one) fully or partially to
release some of the heat. WARNING: Damper handle will be hot if heater has been
running.
1. STOP! Read the safety information above.
2. Make sure manual shutoff valve is fully open.
3. Press in and turn control knob clockwise
to the OFF position.
Clockwise
Ignitor Button
Figure 21 - Control Knob and Ignitor Button Location
4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the
floor. If you smell gas, STOP! Follow “B” in the safety information above. If you
don’t smell gas, go to the next step.
5. Press in control knob and turn counterclockwise
Keep control knob pressed in for five (5) seconds (see Figure 21).
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. This
will allow air to bleed from the gas system.
6. With control knob pressed in, press and release ignitor button. This will light
pilot. The pilot is attached to the front burner. If needed, keep pressing ignitor
button until pilot lights.
Note:
If pilot does not light, contact a qualified service person or gas supplier
for repairs. Until repairs are made, light pilot with match. To light pilot with
match, see Manual Lighting Procedure on page 24.
7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
Note:
If pilot goes out, repeat steps 3 through 7.
to the PILOT position.
C-clockwise
Control Knob
8. Push in and turn control knob counterclockwise
102650
Thermocouple
• If control knob does not pop out when released, contact a qualified service
person or gas supplier for repairs.
Both burners should light. Set control knob to desired setting.
Ignitor Electrode
Figure 22 - Pilot
Pilot Burner
C-clockwise
to the HIGH position.
Continued
23
Page 24
OPERATING
VARIABLE CONTROL OPERATION
HEATER
V ariable ManuallyControlled Models
Continued
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
provides realistic flames and glowing embers from two burners. Selecting higher
settings produces greater heat output. This results in increased heating comfort.
W ARNING
Do not operate heater between pilot and high.
CAUTION
Do not try to adjust heating levels by using the manual shutoff valve.
TO TURN OFF GAS TO APPLIANCE
Shutting Off Heater
1. Press in and turn control knob clockwise
2. Turn the control knob clockwise
3. Press in control knob and turn clockwise
Shutting Off Burners Only (pilot stays lit)
1. Turn the control knob clockwise
2. Press in and turn control knob clockwise
Clockwise
Clockwise
to the PILOT position.
to the HIGH position.
to the HIGH position.
Clockwise
to the OFF Position.
Clockwise
to the pilot position.
Clockwise
INSPECTING
BURNERS
MANUAL LIGHTING PROCEDURE
1. Follow steps 1 through 5 under Lighting Instructions, page 23.
2. Depress control knob and light pilot with match.
3. Keep control knob pressed in for 30 seconds after lighting pilot. After 30
seconds, release control knob. Now follow step 8, page 23.
Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PATTERN
Figure 23 shows a correct pilot flame pattern. Figure 24 shows an incorrect pilot
flame pattern. The incorrect pilot flame is not touching the thermocouple. This
will cause the thermocouple to cool. When the thermocouple cools, the heater will
shut down.
Thermocouple
Pilot Burner
Thermocouple
Pilot Burner
If pilot flame pattern is incorrect, as shown in Figure 24
24
Figure 23 - Correct Pilot
Flame Pattern
Figure 24 - Incorrect Pilot
Flame Pattern
• turn heater off (see To Turn Off Gas to Appliance [Thermostat-Controlled
Models] page 21 or [Variable Manually-Controlled Models] above)
• see Troubleshooting, pages 26 through 29
102650
Page 25
INSPECTING
BURNERS
Continued
FRONT BURNER FLAME PATTERN
Figure 25 shows correct front burner flame pattern. Figure 26 shows incorrect front
burner flame pattern. The incorrect burner flame pattern shows yellow tipping at
top of blue flame.
W ARNING
If yellow tipping occurs, your heater could produce increased
levels of carbon monoxide. If front burner flame pattern shows
yellow tipping, follow instructions at bottom of this page. Yellow
flame on rear burner is normal.
NOTICE
Do not mistake orange flames with yellow tipping. Dirt or other
fine particles are burned by heater, causing brief patches of
orange flame.
CORRECT FLAME PATTERN AT HIGH POSITION
Figure 25 - Correct Front Burner Flame Pattern
INCORRECT FLAME PATTERN AT HIGH POSITION
Figure 26 - Incorrect Front Burner Flame Pattern
If front burner flame pattern is incorrect, as shown in Figure 26
• turn heater off (see To Turn Off Gas to Appliance [Thermostat-Controlled
Models] page 21 or [Variable Manually-Controlled Models] page 24)
• see Troubleshooting, pages 26 through 29
Yellow
Tipping
At Top
of Blue
Flame
102650
25
Page 26
CLEANING
AND
MAINTENANCE
W ARNING
Turn off heater and let cool before cleaning.
CAUTION
You must keep control areas, burners, and circulating air passageways of heater clean. Inspect these areas of heater before
each use. Have heater inspected yearly by a qualified service
person. Heater may need more frequent cleaning due to excessive
lint from carpeting, bedding material, etc.
ODS/PILOT AND BURNERS
• Use a vacuum cleaner or small, soft bristled brush to clean.
LOGS
• If you remove logs for cleaning, refer to Installing Logs, page 19, to properly
replace logs.
• Replace log(s) if broken or chipped (dime-sized or larger).
TROUBLE-
SHOOTING
Note:
items are listed in order of
All troubleshooting
operation.
W ARNING
Turn off and unplug heater and let cool before servicing. Only a
qualified service person should service and repair heater.
CAUTION
Never use a wire, needle, or similar object to clean ODS/pilot. This
can damage ODS/pilot unit.
OBSERVED
PROBLEM
When ignitor button
is pressed, there is no
spark at ODS/pilot
POSSIBLE
CAUSE
1. Ignitor electrode not connected to ignitor cable
2. Ignitor cable pinched or
wet
3. Piezo ignitor nut is loose
4. Broken ignitor cable
5. Bad piezo ignitor
6. Ignitor electrode broken
7. Ignitor electrode positioned wrong
REMEDY
1. Reconnect ignitor cable
2. Free ignitor cable if
pinched by any metal or
tubing. Keep ignitor
cable dry
3. Tighten nut holding
piezo ignitor to base
panel of log set. Nut is
located behind base
panel.
4. Replace ignitor cable
5. Replace piezo ignitor
6. Replace piezo ignitor
7. Replace piezo ignitor
26
102650
Page 27
TROUBLE-
SHOOTING
Continued
OBSERVED
PROBLEM
When ignitor button
is pressed, there is
spark at ODS/pilot
but no ignition
POSSIBLE
CAUSE
1. Gas supply turned off or
manual shutoff valve
closed
2. Control knob not in
PILOT position
3. Control knob not
pressed in while in
PILOT position
4. Air in gas lines when
installed
5. ODS/pilot is clogged
6. Gas regulator setting is
not correct
REMEDY
1. Turn on gas supply or
open manual shutoff
valve
2. Turn control knob to
PILOT position
3. Press in control knob
while in PILOT position
4. Continue holding down
control knob. Repeat
igniting operation until
air is removed
5. Clean ODS/pilot (see
Cleaning and Maintenance, page 26) or
replace ODS/pilot
assembly
6. Replace gas regulator
ODS/pilot lights but
flame goes out
when control knob
is released
1. Control knob not fully
pressed in
2. Control knob not
pressed in long enough
3. Safety interlock system
has been triggered
(thermostat models
only)
4. Manual shutoff valve
not fully open
5. Pilot flame not touching
thermocouple, which
allows thermocouple to
cool, causing pilot flame
to go out. This problem
could be caused by one
or both of the following:
A) Low gas pressure
B) Dirty or partially
clogged ODS/pilot
6. Thermocouple connection loose at control
valve
7. Thermocouple damaged
8. Control valve damaged
1. Press in control knob
fully
2. After ODS/pilot lights,
keep control knob
pressed in 30 seconds
3. Wait one minute for
safety interlock system
to reset. Repeat ignition
operation
4. Fully open manual shutoff valve
5. A) Contact local natural
gas company
B) Clean ODS/pilot (see
Cleaning and Maintenance, page 26) or
replace ODS/pilot
assembly
6. Hand tighten until snug,
then tighten 1/4 turn
more
7. Replace thermocouple
8. Replace control valve
102650
Continued
27
Page 28
TROUBLE-
SHOOTING
Continued
OBSERVED
PROBLEM
One or both burners
do not light after
ODS/pilot is lit
POSSIBLE
CAUSE
1. Burner orifice(s)
clogged
2. Inlet gas pressure is
too low
3. Mislocated crossover
tube
4. Burner orifice(s)
diameter is too small
REMEDY
1. Clean burner(s) (see
Cleaning and Maintenance, page 26) or
replace burner orifice(s)
2. Contact local natural gas
company
3. Contact qualified service
person
4. Replace burner orifice(s)
Delayed ignition of
one or both burners
Burner backfiring
during combustion
Yellow flame in
front burner during
burner combustion
Slight smoke or
odor during initial
operation
1. Manifold pressure is
too low
2. Burner orifice(s)
clogged
3. Mislocated crossover
tube
1. Burner orifice is
clogged or damaged
2. Damaged burner
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
1. Residues from manufacturing processes
and logs curing
1. Contact local natural gas
company
2. Clean burner(s) (see
Cleaning and Maintenance, page 26) or
replace burner orifice(s)
3. Contact qualified service
person
1. Clean burner (see
Cleaning and Maintenance, page 26) or
replace burner orifice
2. Replace damaged burner
3. Replace gas regulator
1. Check burner(s) for dirt
and debris. If found,
clean burner(s) (see
Cleaning and Maintenance, page 26)
2. Replace gas regulator
1. Problem will stop after a
few hours of operation
Moisture/condensation noticed on
windows
Heater produces a
whistling noise
when burners are lit
28
1. Not enough combustion/ventilation air
1. Turning control knob
to HI position when
burners are cold
2. Air in gas line
3. Air passageways on
heater blocked
4. Dirty or partially
clogged burner
orifice(s)
1. Refer to Air for Com-
bustion and Ventilation
requirements (page 5)
1. Turn control knob to LO
position and let warm up
for a minute
2. Operate burners until air
is removed from line.
Have gas line checked
by local natural gas
company
3. Observe minimum
installation clearances
(see pages 9-12)
4. Clean burners (see
Cleaning and Maintenance,
page 26) or replace
burner orifice(s)
102650
Page 29
TROUBLE-
SHOOTING
Continued
W ARNING
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.
• If you cannot reach your gas supplier, call the fire department.
IMPORTANT:
Operating heater where impurities in air exist may create odors.
Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new
carpet or textiles, etc., create fumes. These fumes may mix with combustion air and
create odors. These odors will disappear over time.
OBSERVED
PROBLEM
Heater produces a
clicking/ticking noise just
after burners are lit or shut
off
Heater produces unwanted
odors
Heater shuts off in use
(ODS operates)
POSSIBLE
CAUSE
1. Metal expanding while
heating or contracting
while cooling
1. Heater burning vapors
from paint, hair spray,
glues, cleaners, chemicals, new carpet, etc. (See
IMPORTANT
above)
2. Gas leak. See Warning
statement at top of
page
1. Not enough fresh air is
available
2. Low line pressure
3. ODS/pilot is partially
clogged
statement
REMEDY
1. This is common with
most heaters. If noise is
excessive, contact
qualified service person
1. Open window and
ventilate room. Stop using
odor causing products
while heater is running
2. Locate and correct all
leaks (see Checking GasConnections, page 17)
1. Open window and/or door
for ventilation
2. Contact local natural gas
company
3. Clean ODS/pilot (see
Cleaning and Maintenance, page 26)
Gas odor even when
control knob is in OFF
position
Gas odor during combustion
Thermostat Models Only:
Log set cycles to pilot, but
room temperature drops to a
lower than ideal level before
log set comes back on
102650
1. Gas leak. See Warning
statement at top of
page
2. Control valve defective
1. Foreign matter between
control valve and burner
2. Gas leak. See Warning
statement at top of
page
1. Thermostat sensing bulb
needs to be repositioned
1. Locate and correct all
leaks (see Checking GasConnections, page 17)
2. Replace control valve
1. Take apart gas tubing and
remove foreign matter
2. Locate and correct all
leaks (see Checking GasConnections, page 17)
1. Reposition thermostat
sensing bulb (see Instruc-
tions for Optional Positioning of Thermostat Sensing
Bulb, page 30)
29
Page 30
OPTIONAL
POSITIONING
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 reposition the thermostat sensing bulb.
OF THERMOST AT
SENSING BULB
For Masonry and
Factory-built
Metal Fireplace
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
most fireplace applications. For positioning the thermostat sensing bulb elsewhere,
an adhesive-backed mounting clip has been provided.
T ools needed: 5/16" hex driver or socket
1. Locate the gas valve assembly and thermostat sensing blub (see Figure 27).
Gas V alve
Assembly
Thermostat
Sensing Bulb
Figure 27 - Location of Gas Valve Assembly and Thermostat Sensing Bulb
2. The adhesive-backed mounting clip (see Figure 28) is attached to the thermostat
sensing bulb. Remove the adhesive-backed mounting clip.
Figure 28 - Adhesive-backed Mounting Clip
3. With 5/16" hex driver or socket, loosen the thermostat screw. Carefully slide the
thermostat sensing bulb out of the retaining clamp (see Figure 29).
Note:
Do not remove the screw. Make sure you tighten the screw after removing
the thermostat sensing bulb.
IMPORTANT:
crimped capillary will not allow thermostat to operate properly. It cannot be
repaired, the valve must be replaced.
Do not force or bend the thermostat sensing bulb or capillary. A
Capillary
Screw
Retaining Clamp
Figure 29 - Removing Thermostat Sensing Bulb
Thermostat Sensing Bulb
4. The thermostat sensing bulb may be located to the lower right front side of
fireplace. Determine location of sensing bulb, but do not mount sensing bulb
30
until step 5. If you have a masonry fireplace, see Figure 30 for location.
102650
Page 31
OPTIONAL
POSITIONING
OF THERMOST AT
SENSING BULB
For Masonry and
Factory-built
Metal Fireplace
Thermostat
Sensing Bulb
Adhesive-backed
Mounting Clip
Figure 30 - Locating Thermostat Sensing Bulb on Masonry Fireplace
If you have a factory-built metal fireplace, see Figure 31 for location.
Continued
Thermostat
Sensing Bulb
Adhesive-backed
Mounting Clip
Figure 31 - Locating Thermostat Sensing Bulb on Factory-built Metal Fireplace
If your fireplace has glass doors, position sensing bulb directly behind door gap
on right bottom side (see Figure 32).
Thermostat
Sensing Bulb
Adhesive-backed
Mounting Clip
Glass
Doors
5. The mounting clip must be a minimum of 3" from bottom of fireplace to
prevent crimping of capillary . Once you have decided on a location, clean the
area thoroughly. Remove the paper backing from the adhesive on back of
mounting clip. Press the clip into the new location so that the thermostat
sensing bulb will be positioned vertically with the capillary at the bottom (see
Figure 33). Slide the thermostat sensing bulb into the clip.
IMPORTANT:
Figure 33 - Positioning the Thermostat Sensing Bulb in the Vertical Position
Do not crimp capillary .
Capillary
with the Capillary at the Bottom
Thermostat
Sensing Bulb
Adhesive-backed
Mounting Clip
Do Not Crimp Capillary
31
Page 32
TECHNICAL
SERVICE
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).
SPECIFICATIONS
CG3324NTACG3630NTA
Btu (Variable)20,000/33,00021,500/36,000
Type GasNatural Gas OnlyNatural Gas Only
IgnitionPiezoPiezo
Pressure3.4" W.C.3.4" W.C.
Inlet Gas
Pressure (in. of water)
Maximum10.5"10.5"
Minimum*5"5"
* For purpose of input adjustment
Shipping Weight38 lbs.40 lbs.
CG2618NVACG3324NVACG3630NVA
Btu (Variable)16,000/26,00020,000/33,00021,500/36,000
Type GasNatural Gas OnlyNatural Gas OnlyNatural Gas Only
IgnitionPiezoPiezoPiezo
Pressure3.4" W.C.3.4" W.C.3.4" W.C.
SERVICE
HINTS
Inlet Gas
Pressure (in. of water)
Maximum10.5"10.5"10.5"
Minimum*5"5"5"
* For purpose of input adjustment
Shipping Weight36 lbs.38 lbs.40 lbs.
When gas pressure is too low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
When gas quality is bad
• pilot will not stay lit
• burners will produce flames and soot
• heater will backfire when lit
You may feel your gas pressure is too low or gas quality is bad. If so, contact your
local natural gas supplier.
32
102650
Page 33
REPLACEMENT
PARTS
Note:
Use only original replacement parts. This will protect your warranty cover-
age for parts replaced under warranty.
Parts Under Warranty
Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Technical Service Department at 1-800-323-
5190.
When calling DESA International, have ready
• your name
• your address
• model number of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
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), either contact your nearest Parts Central (see below) or call DESA
International’s Parts Department at 1-800-972-7879 for referral information.
When calling DESA International, have ready
• model number of your heater
• the replacement part number
102650
PARTS
CENTRALS
These Parts Centrals are privately owned businesses. They have agreed to support
our customer’s needs by providing original replacement parts and accessories.
When calling a Parts Central, ask for the Parts Department.
Baltimore Electric
1348 Dixwell Avenue
Hamden, CT 06514
1-800-397-7553
203-248-7553
Parts Department
Portable Heater Parts
342 N. County Rd. 400 East
Valparaiso, IN 46383
All States
219-462-7441
1-800-362-6951
Parts Department
F B D
P. O. Box 1096
1720 Kummer Road
Franklin, KY 42134
502-586-1922
1-800-654-8534
Four Flags Power Products
1115 Stateline Road
Niles, MI 49120
616-684-2697
Parts Only
Master Parts Distributors
1184 Wilson Ave. NW
Walker, MI 49504
616-791-0505
US 1-800-446-1446
Fax: 616-791-8270
Parts Department
Washer Equipment Co.
1715 Main Street
Kansas City, MO 64108
KS, MO, AR
816-842-3911
Parts Department
East Coast Energy
Products
707 Broadway
W. Long Branch, NJ
07764
908-870-8809
1-800-755-8809
Parts Department
Tarantin Tank Co.
P.O. Box 6129
Freehold, NJ 07728
908-780-9340
1-800-922-0724
Parts Department
Albany Ladder
1586-90 Central Avenue
Albany, NY 07728
NY, MA, VT
1-800-354-7368
518-869-5335
Parts Department
Dayton Hardware
P.O. Box 275
North Dayton Station
Dayton, OH 45404
All States
513-258-3721
OH 1-800-762-3426
Parts Department
Halco Enterprises
208 Carter Drive, Unit 21
West Chester, PA 19382
610-430-7717
US 1-800-368-0803
Parts Department
LA Porte's Parts & Service
2444 North 5th Street
Hartsville, SC 29550
803-332-0191
Parts Department
Cans Unlimited, Inc.
P.O. Box 645
Taylor, SC 29687
All States
803-879-3009
1-800-845-5301
Parts Department
33
Page 34
ILLUSTRATED
P ARTS BREAK-
DOWN
Variable Manually-
Controlled Models
1
4
5
25
7-2
7-1
7
29
9
8
29
6
27
3
27-1
10
27-2
2
21
11
12
CG2618NVA
13
14
CG3324NVA
CG3630NVA
34
15
16
17
18
23
22
24
21
25
26
19
20
102650
Page 35
P ARTS LIST
Variable Manually-
Controlled Models
KEYPART NUMBER FOR
NO.CG2618NVACG3324NVACG3630NVADESCRIPTIONQTY.
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.
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.
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.
MANUAL SHUTOFF
VALVE - GA5010
For all models. Manual shutoff valve
with 1/8" NPT tap. Fits 1/2" NPT
pipe.
BLACK FIREPLACE
HOOD - GA6050
For all models. Helps
deflect heat away from
mantel or wall above
fireplace.
38
BRASS FIREPLACE
HOOD - GA6052
For all models. Helps
deflect heat away from
mantel or wall above
fireplace.
DAMPER CLAMP - GA6080
For variably controlled models.
Permanently opens chimney flue
damper for vented operation.
LAVA ROCK - GA6060
For all models. Order when additional
rock is desired. (3 lb. bag)
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. We make no other warranty, expressed or implied.
LIMITED WARRANTY
COMFORT GLOW VENT-FREE NATURAL 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. To make a claim under this warranty the Bill of Sale or cancelled check must be presented.
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore
this heater to proper operating condition and an allowance for labor when provided by a DESA Authorized Service Center.
Warranty part(s) MUST be obtained through authorized dealers of this product and/or DESA International who will
provide original factory replacement parts. Failure to use original factory replacement parts voids this warranty. The heater
MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit.
This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail
or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by improper installation.
Travel, diagnostic cost, labor, transportation and any and all such other costs related to repairing a defective heater will
be the responsibility of the owner.
TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE
PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES
AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO ONE (1) YEAR FROM THE DATE OF
FIRST PURCHASE; AND DESA INTERNATIONAL’S LIABILITY IS HEREBY LIMITED TO THE PURCHASE
PRICE OF THE PRODUCT AND DESA INTERNATIONAL SHALL NOT BE LIABLE FOR ANY OTHER
DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or
consequential damages, so the above limitation on implied warranties, or exclusion or limitation on damages may not apply
to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write:
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
102650-01
Rev. B
04/96
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