Desa CGN20TA User Manual

Page 1
OWNER’S MANUAL
BLUE FLAME VENT-FREE NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
CGN20TA
®
Heater Size: 20,000 Btu/Hr Thermostat
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 performed by
a qualified installer, service agency, or the gas supplier.
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.
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.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion must be pro­vided. Refer to page 4 of this manual
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Save this manual for future reference.
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CGN20TA
Blue Flame Vent-Free Natural Gas Heater
SAFETY INFORMATION
WARNINGS
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 natural gas. The odor helps you detect a natural gas leak. However, the odor added to natural gas can fade. Natural 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.
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. F ollow 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
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
5. 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 F r esh Air for Comb us- tion and Ventilation, pages 4 through 6.
6. Keep air openings in front and bottom of heater clear and free of debris. This will ensure enough air for proper com­bustion.
7. If heater shuts off, do not relight until you provide fresh, outside air . If heater keeps shutting off, have it serviced.
8. Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
9. Never place any objects on the heater.
10. Surface of heater becomes very hot when running heater. K eep children and adults away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a time after shut-down. Allow surface to cool before touching.
11. Carefully supervise young children when they are in the same room with heater.
12. Make sure grill guard is in place be­fore running heater.
13. Do not use heater if any part has been 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.
14. Turn of f and unplug heater and let cool before servicing. Only a qualified ser­vice person should service and repair heater.
15. Operating heater above elevations of 4,500 feet could cause pilot outage.
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PRODUCT
OWNER’S MANUAL
IDENTIFICATION
Front Panel
Ignitor Button
Control Knob
Grill Guard
Glass Panel
Heater Cabinet
Figure 1 - Vent-Free Natural Gas 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*.
*Available from: American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
PRODUCT FEATURES
Safety Device
This heater has a pilot with an Oxygen Depletion Sensor Shutoff System (ODS). The ODS/pilot is a required feature for vent­free 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 sources to light heater.
Thermostatic Heat Control
Thermostat models have a thermostat sens­ing bulb and a control valve. This results in the greatest heater comfort. This can also result in lower gas bills.
UNPACKING
1. Remove heater from carton.
2. Remove all protective packaging ap­plied to heater for shipment.
3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.
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CGN20TA
Blue Flame Vent-Free Natural Gas Heater
FRESH AIR FOR COMBUSTION AND VENTILATION
WARNING: 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 fuel­burning 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 4 through 6 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 con­tinuous water vapor retarder with a rating of one perm (6x10 per pa-sec-m2) or less with open­ings gasketed or sealed
b. weather stripping has been
added on openable windows and doors
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
From Outdoors
If your home does not meet all of the three criteria above, proceed to page 5.
and
, page 6
Ventilation Air
.
and
-11
kg
Confined and Unconfined Space
The National Fuel Gas Code (ANSIZ2123.1, 1992 Section 5.3) defines a confined space
as a space whose volume is less than 50 cubic feet** per 1,000 Btu per hour (4.8 m per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are in­stalled*, through openings not furnished with doors, are considered a part of the unconfined space.
* Adjoining rooms are communicating only if there are doorless passageways or ventila­tion grills between them.
** Cubic feet equals length x width x height of room.
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OWNER’S MANUAL
FRESH AIR FOR COMBUSTION AND VENTILATION
Continued
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confined or Unconfined Space
Use this worksheet 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:
16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)
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.
Space size 20 ft. (length) x
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:
space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can sup­port)
3. Add the Btu/Hr of all fuel burning ap­pliances in the space.
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
Example:
Gas water heater 40,000 Btu/Hr Vent-free heater + 20,000 Btu/Hr Total = 60,000 Btu/Hr
* Do not include direct-vent gas appli­ances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
2560 cu. ft. (volume of
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 can support)60,000 Btu/Hr (actual amount of Btu/Hr used)
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 Ventila- tion Air From Inside Building, page 6.
B. V ent room directly to the outdoors. See
V entilation Air Fr om Outdoors, page 6.
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.
51,200 Btu/Hr (maximum
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Continued
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CGN20TA
Blue Flame Vent-Free Natural Gas Heater
FRESH AIR FOR COMBUSTION AND VENTILATION
Continued
WARNING: 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
Gas Code, ANSI Z223.1, 1992, Section 5.3
codes
.
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 Combustion and Ventilation for
required size of ventilation grills or ducts.
WARNING: Rework work­sheet, adding the space of the adjoining unconfined space. The combined spaces must have enough fresh air to supply all appliances in both spaces.
National Fuel
or applicable local
Ventilation
Grills
into Adjoining
Room,
Option 1
Figure 2 - Ventilation Air from Inside Building
Or
Remove Door into Adjoining
Room,
Option 3
Outlet Air
12"
Ventilated Attic
Outlet Air
12"
Ventilation Grills
Into Adjoining Room,
Option 2
To Attic
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:
inlet or outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent.
Do not provide openings for
Inlet Air
Inlet Air
Figure 3 - Ventilation Air from Outdoors
6
To
Crawl
Space
Ventilated
Crawl Space
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OWNER’S MANUAL
INSTALLATION
NOTICE: A qualified service per­son must install heater. Follow all local codes.
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.
INSTALLATION ITEMS
Before installing heater, make sure you have the items listed below.
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• manual shutoff valve *
• ground joint union
• test gauge connection * (see Figure 13, page 10)
• sediment trap
• tee joint
• pipe wrench
* 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 19.
LOCATING HEATER
This heater is designed to be mounted on a wall.
WARNING: Never install the
heater
in a bedroom or a 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
as a fireplace insert
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.
CEILING
6" Minimum From Sides Of Heater
IMPORTANT:
Vent-free heaters add mois­ture to the air. Although this is beneficial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. See Fresh Air for Com- bustion and Ventilation, pages 4 through 6.
CAUTION: If you install the
heater in a home garage
heater pilot and burner must be at least 18 inches above floor
locate heater where moving ve­hicle will not hit it
For convenience and efficiency, install heater
• where there is easy access for operation, inspection, and service
• in coldest part of room
An optional fan kit is available from your dealer. See Accessories, page 19. If plan­ning to use fan, locate heater near an electri­cal outlet.
36" Minimum
WARNING: Maintain the mini-
mum clearances shown in Figure
4. If you can, provide greater clear­ances from floor, ceiling, and join­ing wall.
You can locate heater on floor, away from a wall. An optional floor mounting stand is needed. Purchase the floor mounting stand from your dealer. See Accessories, page 19.
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Left Side
FLOOR
Figure 4 - Mounting Clearances As Viewed From Front of Heater
7
Right Side
3"
Minimum To Top Surface Of Carpeting, Tile Or Other Combustible Material
Continued
Page 8
CGN20TA
Blue Flame Vent-Free Natural Gas Heater
INSTALLATION
Continued
THERMOSTAT SENSING BULB
The thermostat sensing bulb has been placed inside the heater for protection during ship­ping.
Locating Thermostat Sensing Bulb
1. Remove front panel of heater (see Fig­ure 7, page 8).
2. Locate thermostat sensing bulb just under burner assembly.
IMPORTANT:
bulb to back of heater for proper operation.
Attaching Thermostat Sensing Bulb
1. Remove thermostat sensing bulb from holders inside heater. Route through slot opening in bottom of heater.
2. Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is pro­vided in hardware package.
3. Snap clamp into upper mounting hole as shown in Figure 5. Mounting hole is located on lower left edge on back of heater. Mak e sure the thermostat sens­ing bulb is pointing up.
Attach thermostat sensing
INSTALLING HEATER TO WALL
Mounting Bracket
The mounting bracket is located on back panel of heater. It has been taped there for shipping. Remove mounting bracket from back panel.
Mounting Bracket
Figure 6 - Bracket Location
Removing Front Panel Of Heater
1. Remove two screws near bottom cor­ners of front panel.
2. Lift straight up on grill guard until it stops. Grill guard will slide up about 1/4".
3. Pull bottom of front panel forward, then downward.
4. Remove cardboard packing from grill and glass.
Methods For Attaching Mounting Bracket To Wall
Only use last hole on each end of mounting bracket to attach bracket to wall. These two holes are 16 inches apart from their centers. Attach mounting bracket to wall in one of two ways.
1. Attaching to wall stud
2. Attaching to wall anchor
Attaching to wall stud
This method provides the strongest hold. Insert mounting screws through mounting bracket and into wall studs.
Attaching to wall anchor
This method allows you to attach mounting bracket to hollow walls (wall areas between studs) or to solid walls (concrete or ma­sonry).
Decide which method better suits your needs. Either method will provide a secure hold for the mounting bracket.
Marking Screw Locations
1. Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level.
WARNING: Maintain minimum clearances shown in Figure 8. If you can, provide greater clear­ances from floor and joining wall.
Thermostat Sensing Bulb
Clamp
Figure 5 - Attaching Thermostat Sensing Bulb
Figure 7 - Removing Front Panel Of Heater
8
2. Mark screw locations on wall (see Fig­ure 8).
Note:
Only mark last hole on each end of mounting bracket. Insert mounting screws through these holes only.
3. Remove tape and mounting bracket from wall.
7 1/4"
Min.
Only Insert Mounting
Screws Through Last
Hole On Each End
Adjoining Wall
Figure 8 - Mounting Bracket Clearances
16"
18 3/4"
Min.
Floor
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OWNER’S MANUAL
INSTALLATION
Continued
Attaching Mounting Bracket To Wall
Note:
Wall anchors, mounting screws, and spacers are in hardware package. The hard­ware package is provided with heater.
Attaching to wall stud method
For attaching mounting bracket to wall studs
1. Drill holes at marked locations using
9/64" drill bit.
2. Place mounting bracket onto wall. Line
up last hole on each end of bracket with holes drilled in wall.
3. Insert mounting screws through bracket
and into wall studs.
4. Tighten scre ws until mounting bracket
is firmly fastened to wall studs.
Attaching to wall anchor method
For attaching mounting bracket to hollow walls (wall areas between studs) or solid walls (concrete or masonry)
1. Drill holes at marked locations using
5/16" drill bit. For solid walls (concrete or masonry), drill at least 1" deep.
2. Fold wall anchor as shown in Figure 9.
3. Insert wall anchor (wings first) into hole. Tap anchor flush to wall.
4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key to “pop” open anchor wings.
IMPORTANT :
For thick walls (over 1/2" thick) or solid walls, do not pop open wings.
Figure 10 - Popping Open Anchor Wings For Thin Walls
5. Place mounting bracket onto wall. Line up last hole on each end of bracket with wall anchors.
6. Insert mounting screws through bracket and into wall anchors.
7. Tighten scre ws until mounting bracket is firmly fastened to wall.
Do not hammer key!
Placing Heater On Mounting Bracket
1. Locate two horizontal slots on back panel of heater.
2. Place heater onto mounting bracket. Slide horizontal slots onto stand-out tabs on mounting bracket.
Horizontal Slots
Installing Bottom Mounting Screws
1. Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 12).
2. Mark screw locations on wall.
3. Remove heater from mounting bracket.
4. If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 un­der Attaching To Wall Anchor Method, column 1.
If installing bottom mounting screw into wall stud, drill holes at marked lo­cations using 9/64" drill bit.
5. Replace heater onto mounting bracket.
6. Place spacers between bottom mount­ing holes and wall anchor or drilled hole.
7. Hold spacer in place with one hand. With other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.
8. Tighten both screws until heater is firmly secured to wall. Do not over tighten.
Note:
Do not replace front panel at this time. Replace front panel after making gas connections and checking for leaks (see pages 10 and 11).
Figure 9 - Folding Anchor
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Stand-Out Tab
Mounting Bracket (attached to wall)
Figure 11 - Mounting Heater Onto Mounting Bracket
Figure 12 - Installing Bottom Mounting Screws
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CGN20TA
Blue Flame Vent-Free Natural Gas Heater
CONNECTING TO GAS SUPPLY
NOTICE: A qualified service per­son must connect heater to gas supply. Follow all local codes.
WARNING: Never connect heater to private (non-utility) gas wells. This gas is commonly known as well-head gas.
IMPORTANT
fore connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur.
: Check gas line pressure be-
Pressure Regulator
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 large enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pres­sure will occur.
Typical Inlet Pipe Diameters
20,000 Btu/Hr 3/8" or greater 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).
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. 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.
IMPORTANT:
Hold pressure regulator with wrench when connecting it to gas pip­ing and/or fittings.
3/8" NPT Pipe Nipple
Heater Cabinet
Tee Joint
Test Gauge Connection*
Sediment Trap
Figure 13 - Gas Connection
Reducer Bushing to 1/8" NPT
1/8" NPT Plug Tap
Tee Joint Pipe Nipple Cap
Ground Joint Union
Manual Shutoff Valve *
Typical Inlet Pipe from Gas Meter (4" W.C. to 10.5" W.C. Pressure)
3" Minimum
* 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 19.
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OWNER’S MANUAL
CHECKING GAS CONNECTIONS
WARNING: Test all gas pip­ing and connections for leaks after installation or servicing. Correct all leaks at once.
WARNING: 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 piping system. Pressures in excess of 1/2 psig will damage heater regulator.
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 main gas valve located on or near gas meter.
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. Correct all leaks at once.
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.
Manual Shutoff Valve
Figure 14 - Manual Shutoff Valve
Gas Meter
ON
Open
POSITION
OFF
Closed
POSITION
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 (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 12 and 13). Check the rest of the internal joints for leaks.
7. Turn of f heater (see To T urn Off Gas to Appliance, page 12).
8. Replace front panel.
Thermostat Gas Valve
Manual Shutoff Valve
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Figure 15 - Checking Gas Joints
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Page 12
CGN20TA
Blue Flame Vent-Free Natural Gas Heater
Note:
OPERATING HEATER
FOR YOUR SAFETY
READ BEFORE
LIGHTING
WARNING: 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. Ne ver 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
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.
Clockwise
4. Wait f ive (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 in column 1. If you don’t smell gas, go to the next step.
5. T urn contr ol knob counterclockwise
C-clockwise
to the PILOT position. Press in control knob for f ive (5) sec­onds (see Figure 16).
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.
• If control knob does not pop up
when released, contact a qualified service person or gas supplier for repairs.
6. With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of burner. The pilot can be seen through the glass panel. If needed, keep pressing ignitor button until pilot lights.
Ignitor Button Control Knob
T
LO
O
IL
P
OFF
HI
IGNITOR
Figure 16 - Control Knob In The OFF Position
7. Keep control knob pressed in for 30
8. T urn contr ol knob counterclockwise
Thermocouple
Figure 17 - Pilot
heating levels by using the manual shutoff valve.
Shutting Off Heater
1. Turn control knob clockwise
2. Turn off all electric power to the ap-
Shutting Off Burner Only (pilot stays lit)
1. Turn control knob clockwise
If pilot does not stay lit, refer
to T roubleshooting, pages 14 through
16. Also 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 13.
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. W ait one (1) minute before lighting pilot again.
C-clockwise
to desired heating level. The main burner should light. Set control knob to any heat level between HI and LO.
Ignitor Electrode
CAUTION: Do not try to adjust
TO TURN OFF GAS
TO APPLIANCE
to the OFF position.
Clockwise
pliance if service is to be performed.
to the PILOT position.
Clockwise
Pilot Burner
12
104190
Page 13
OWNER’S MANUAL
G
OPERATING HEATER
Continued
THERMOSTAT CONTROL
OPERATION
The thermostatic control used on these models differs from standard thermo­stats. Standard thermostats simply turn on and off the burner. The thermostat used on this heater senses the room tem­perature. The thermostat adjusts the amount of gas flow to the burner. This increases or decreases the burner flame height. At times the room may exceed the set temperature. If so, the burner will shut off. The burner will cycle back on when room temperature drops below the set temperature. The control knob can be set to any heat level between HI and LO.
Note:
The thermostat sensing bulb mea­sures the temperature of air near the heater cabinet. This may not always agree with room temperature (depending on housing construction, installation loca­tion, room size, open air temperatures, etc.). Frequent use of your heater will let you determine your own comfort levels.
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see Figure 7,
page 8).
2. Follow steps 1 through 5 under Light-
ing Instructions, page 12.
3. With control knob pressed in, strik e
match. Hold match to pilot until pi­lot lights.
4. Keep control knob pressed in for 30
seconds after lighting pilot. After 30 seconds, release control knob.
5. Replace front panel.
INSPECTING BURNER
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
Figure 18 shows a correct pilot flame pat­tern. Figure 19 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.
Pilot Burner
Thermocouple
Figure 18 - Correct Pilot Flame Pattern
Thermocouple
Figure 19 - Incorrect Pilot Flame Pattern
If pilot flame pattern is incorrect, as shown in Figure 19.
• turn heater off (see To Turn Off Gas to Appliance, page 12).
• see Tr oubleshooting, pages 14 through 16.
Pilot Burner
BURNER FLAME PATTERN
Figure 20 shows a correct burner flame pattern. Figure 21 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than 1/2 the glass panel height.
WARNING: If yellow tipping occurs, your heater could pro­duce increased levels of carbon monoxide. If burner flame pat­tern shows yellow tipping, follow instructions at bottom of this page.
NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame.
1
/
2
1/2
Glass
CORRECT FLAME PATTERN
Correct Flame Pattern
AT HIGH POSITION
At High Position
Figure 20 - Correct Burner Flame Pattern
Yellow Tipping
INCORRECT FLAME PATTERN
Incorrect Flame Pattern
AT HIGH POSITION
At High Position
Figure 21 - Incorrect Burner Flame Pattern
If burner flame pattern is incorrect, as shown in Figure 21
• turn heater off (see To Turn Off Gas to Appliance, page 12)
• see Troubleshooting, pages 14 through 16
Height
1
1/2
Glass Height
/
2
104190
13
Page 14
CGN20TA
Blue Flame Vent-Free Natural Gas Heater
TROUBLESHOOTING
Note:
All troubleshooting items are listed in
order of operation.
OBSERVED PROBLEM
When ignitor button is pressed, there is no spark at ODS/pilot
When ignitor button is pressed, there is spark at ODS/pilot but no ignition
WARNING: Turn off and un­plug heater and let cool before servicing. Only a qualified ser­vice person should service and repair heater.
POSSIBLE CAUSE
1. Ignitor electrode positioned wrong
2. Ignitor electrode broken
3. Ignitor electrode not connected to igni­tor cable
4. Ignitor cable pinched or wet
5. Piezo ignitor nut is loose
6. Broken ignitor cable
7. Bad piezo ignitor
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
CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit.
REMEDY
1. Replace ignitor
2. Replace ignitor
3. Reconnect ignitor cable
4. Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry
5. Tighten nut holding piezo ignitor to heater cabinet. Nut is located inside heater cabinet at top
6. Replace ignitor cable
7. Replace piezo ignitor
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, page17) 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. Thermocouple connection loose at con­trol valve
6. 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
7. Thermocouple damaged
8. Control valve damaged
14
1. Press in control knob fully
2. After ODS/pilot lights, keep control knob pressed in 30 seconds
3. Wait one (1) minute for safety interlock system to reset. Repeat ignition operation
4. Fully open manual shut-off valve
5. Hand tighten until snug, then tighten 1/4 turn more
6. A) Contact local natural gas company B) Clean ODS/pilot (see Cleaning and Maintenance, page 17) or replace ODS/ pilot assembly
7. Replace thermocouple
8. Replace control valve
104190
Page 15
TROUBLESHOOTING
Continued
OWNER’S MANUAL
OBSERVED PROBLEM
Burner does not light after ODS/pilot is lit
Delayed ignition of burner
Burner backfiring during combustion
Yellow flame during burner combustion
Slight smoke or odor during initial opera­tion
Heater produces a whistling noise when burner is lit
POSSIBLE CAUSE
1. Burner orifice is clogged
2. Burner orifice diameter is too small
3. Inlet gas pressure is too low
1. Manifold pressure is too low
2. Burner orifice is clogged
1. Burner orifice is clogged or damaged
2. Burner damaged
3. Gas regulator defective
1. Not enough air
2. Gas regulator defective
1. Residues from manufacturing processes
1. Turning control knob to HI position when burner is cold
2. Air in gas line
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice
REMEDY
1. Clean burner (see Cleaning and Mainte­nance, page 17) or replace burner orifice
2. Replace burner orifice
3. Contact local natural gas company
1. Contact local natural gas company
2. Clean burner (see Cleaning and Mainte- nance, page 17) or replace burner orifice
1. Clean burner (see Cleaning and Mainte- nance, page 17) or replace burner orifice
2. Replace burner
3. Replace gas regulator
1. Check burner for dirt and debris. If found, clean burner (see Cleaning and Maintenance, page 17)
2. Replace gas regulator
1. Problem will stop after a few hours of operation
1. Turn control knob to LO position and let warm up for a minute
2. Operate burner until air is removed from line. Have gas line checked by local natural gas company
3. Observe minimum installation clear­ances (see Figure 4, page 7)
4. Clean burner (see Cleaning and Mainte- nance, page 17) or replace burner orifice
104190
Continued
15
Page 16
CGN20TA
Blue Flame Vent-Free Natural Gas Heater
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 neighbors phone. Follow the gas suppliers instructions.
If you cannot reach your gas supplier, call the fire department.
IMPORTANT:
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.
Operating heater where impurities in air exist may create odors. Cleaning
OBSERVED PROBLEM
Heater produces a clicking/ticking noise just after burner is lit or shut off
Heater produces unwanted odors
Heater shuts off in use (ODS operates)
Gas odor even when control knob is in OFF position
POSSIBLE CAUSE
1. Metal expanding while heating or con­tracting while cooling
1. Heater burning vapors from paint, hair spray, glues, etc. See statement above).
2. Gas leak. See W arning statement at
top of page
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged
1. Gas leak. See W arning statement at
top of page
2. Control valve defective
IMPORTANT
REMEDY
1. This is common with most heaters. If noise is excessive, contact qualif ied ser­vice person
1. Ventilate room. Stop using odor caus­ing products while heater is running
2. Locate and correct all leaks (see Check- ing Gas Csonnections, page 11)
1. Open window and/or door for ventilation
2. Contact local propane/LP gas company
3. Clean ODS/pilot (see Cleaning and Maintenance, page 17)
1. Locate and correct all leaks (see Check- ing Gas Connections, page 11)
2. Replace control valve
Gas odor during combustion
Moisture/condensation noticed on windows
1. Foreign matter between control valve and burner
2. Gas leak. See W arning statement at
top of page
1. Not enough combustion/ventilation air.
16
1. Take apart gas tubing and remove for­eign matter
2. Locate and correct all leaks (see Check- ing Gas Connections, page 11)
1. Refer to Air for Combustion and Venti- lation requirements (page 4)
104190
Page 17
OWNER’S MANUAL
CLEANING AND MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep control areas, burner, 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 BURNER
• Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean.
CABINET
Air Passageways
• Use a vacuum cleaner or pressurized air to clean.
Exterior
• Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabi­net to remove dust.
SERVICE PUBLICATIONS
You can purchase a service manual from the address listed on the back page of this manual. Send a check for $5.00 payable to DESA International.
SPECIFICATIONS
CGN20TA
Btu (Variable) 10,000/20,000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3" W.C. Inlet Gas Pressure (in. of water)
Maximum 10.5" Minimum 4"
Dimensions, Inches (H x W x D)
Heater 23.5 x 18.5 x 8.0 Carton 25.8 x 21.3 x 10.1
Weight (pounds)
Heater 22 Shipping 27
REPLACEMENT PARTS
Note:
Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.
Parts 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 Technical Service Depart­ment at 1-800-323-5190 for referral infor­mation.
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 defec-
tive 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 1-800­972-7879 for referral information.
When calling DESA International, have ready
• model number of your heater
• the replacement part number
TECHNICAL SERVICE
You may have further questions about in­stallation, operation, or troubleshooting.
If so, contact DESA International’s Technical Service Department at 1-800-323-5190.
SERVICE HINTS
When gas pressure is too low
• pilot will not stay lit
• burner will have delayed ignition
• heater will not produce specified heat
When gas quality is bad
• pilot will not stay lit
• burner 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.
104190
17
Page 18
CGN20TA
Blue Flame Vent-Free Natural Gas Heater
PARTS CENTRALS
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
FBD
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 1-800-268-4983
Master Service Center
1184 Wilson NW Walker, MI 49504 616-791-4760 1-800-446-1446
These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories.
Washer Equipment Co.
1715 Main Street Kansas City, MO 64108 KS, MO, AR 816-842-3911
East Coast Energy
Products 833 Broadway W. Long Branch, NJ 07764 908-870-8809 1-800-755-8809
Tarantin Tank Co.
P.O. Box 6129 Freehold, NJ 07728 908-780-9340 1-800-922-0724
Albany Ladder
1586-90 Central Avenue Albany, NY 12205 NY, MA, VT 518-869-5335 1-800-354-7368
Dayton Hardware
P.O. Box 275 North Dayton Station Dayton, OH 45404 All States 513-258-3721 OH 1-800-762-3426
Halco Enterprises
208 Carter Drive, Unit 21 West Chester, PA 19382 215-696-2670 1-800-368-0803
LA Porte's Parts & Service
2444 N. 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
18
104190
Page 19
OWNER’S MANUAL
ACCESSORIES
Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see page 18) or call DESA International’s Parts Department at 1-800­972-7879 for referral information. You can also write to the address listed on the back page of this manual.
FLOOR MOUNTING STAND
- GA4500 - Champagne
For locating heater on the floor, away from a wall. Complete installation instructions included.
FAN KITS - GA3100A AND GA3200TA
For all models. Provides better heat distri­bution. Makes heater more efficient. Com­plete installation and operating instructions included.
Manually controlled - GA3100A. Includes ON/OFF switch.
Thermostatically controlled - GA3200TA. Includes three settings: ON/OFF/AUTO.
MANUAL SHUTOFF VALVE - GA5010
For all models. Manual shutoff valve with 1/8" NPT tap.
104190
19
Page 20
CGN20TA
Blue Flame Vent-Free Natural Gas Heater
ILLUSTRATED PARTS BREAKDOWN
CGN20TA
22
21
23
26
10
13
11
12
18
8
4
10
7
9
6
3
5
2
14
16
15
19
17
25
20
12-1 12-2
24
1
12 ODS/Pilot Assembly
20
104190
Page 21
OWNER’S MANUAL
PARTS LIST
CGN20TA
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 17 of this manual.
KEY PART NO. NUMBER DESCRIPTION QTY.
1 098304-01 Screw, #10 x 3/8" 2 2 098742-03 Front Panel for CGN20TA (Champagne) 1 3 103476-01 Grill Guard 1 4 101108-01 Removable Speed Clip 2 5 098533-04AA Bottom Glass Retainer 1 6 098260-09 Glass Panel 1 7 098532-04AA Top Glass Retainer 1 8 M11084-26 Screw, #10 x 3/8" 4 9 098352-04BR Deflector Unit 1 10 098271-02 Ignitor Cable 1 11 098249-01 Nut, M5 2 12 099440-05 ODS/Pilot Assembly 1 12-1 098514-01 Thermocouple 1 12-2 098515-01 Ignitor Electrode 1 13 099120-02 Burner 1 14 098517-01 3/16" Pilot Tubing 1 15 098250-01 Injector Holder 1 16 098251-09 Injector 1 17 099415-07 Pressure Regulator 1 18 099553-01 Pilot Shield 1 19 103255-01 3/8" Outlet (Burner) Tubing 1 20 103256-01 3/8" Inlet Tubing 1 21 098522-10 Thermostat Gas Valve 1 22 098530-05 Cabinet for CGN20TA (Woodgrain) 1 23 097159-04 Piezo Ignitor 1 24 M11084-26 Screw, #10 x 3/8" 2 25 M11084-38 Screw, #8 x 3/8" 2 26 099066-01 Mounting Bracket 1
104190
PARTS AVAILABLE NOT SHOWN
098305-01 Control Position Label 1 100642-01 Hardware Assembly 1
21
Page 22
CGN20TA
Blue Flame Vent-Free Natural Gas Heater
NOTES
_______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________
22
104190
Page 23
OWNER’S MANUAL
NOTES
_______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________
104190
23
Page 24
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. We make no other warranty, expressed or implied.
LIMITED WARRANTY
COMFORT GLOW VENT-FREE NATURAL GAS 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. 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 TWO (2) YEARS 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
104190 01
NOT A UPC
104190-01 REV. A 09/97
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