UNVENTED (VENT-FREE)
BLUE FLAME GAS HEATER
SAFETY INFORMATION AND
INSTALLATION MANUAL
CBN20, CBP20
CBN20T, CBP20T
CBN30T, CBP30T
WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manualforcorrectinstallationand
operational procedures. For as-
sistanceoradditionalinformation
consult a qualified installer, ser-
vice agency, or the gas supplier.
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result caus-
ing 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.
• Donottouchanyelectricalswitch;donotuseany
phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s in-
structions.
WARNING: This is an unvented
gas-fired heater. It uses air (oxy-
gen) from the room in which it is
installed. Provisions for ad-
equate combustion and ventila-
tion air must be provided. Refer
to Air for Combustion and Venti-
lation section on page 4 of this
manual.
• 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*, permanently located, manufactured
(mobile) home, where not prohibited by local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This
appliance is not convertible for use with other gases.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
Save this manual for future reference.
Download from Www.Somanuals.com. All Manuals Search And Download.
SAFETY INFORMATION
LOCAL CODES
3
PRODUCT IDENTIFICATION
UNPACKING
PRODUCT FEATURES
SAFETY INFORMATION
PRODUCT IDENTIFICATION
3. If you smell gas
Control Knob & Ignitor Button
(not seen from this view)
• 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
4. This heater shall not be installed in a bedroom or bathroom.
5. This heater needs fresh, outside air ventilation to run properly.
This heater has an Oxygen Depletion Sensing (ODS) safety
shutoff system. The ODS shuts down the heater if not enough
fresh air is available. See Air for Combustion and Ventilation,
pages 4 through 6.
Grill
Guard
6. Keep all air openings in front and bottom of heater clear and free
of debris. This will insure enough air for proper combustion.
Glass
Panel
7. If heater shuts off, do not relight until you provide fresh, out-
side 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
Heater
Cabinet
Front
Panel
9. Do not use heater if any part has been under water. Immedi-
ately 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.
Figure 1 - Vent-Free Gas Heater
UNPACKING
10. Turn off and let cool before servicing. Only a qualified service
person should service and repair heater.
1. Remove heater from carton.
2. Remove all protective packaging applied to heater for shipment.
11. Operating heater above elevations of 4,500 feet could cause
pilot outage.
3. Check heater for any shipping damage. If heater is damaged,
promptly return to dealer where you bought heater.
12. To prevent performance problems, do not use propane/LP fuel
tank of less than 100 lbs. capacity.
PRODUCT FEATURES
13. Provide adequate clearances around air openings.
SAFETY DEVICE
LOCAL CODES
This heater has a pilot with an Oxygen Depletion Sensing (ODS)
safety shutoff system. 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.
Install and use heater with care. Follow all local codes. In the absence
of local codes, use the latest edition of National Fuel Gas Code, ANSI
Z223.1/NFPA 54*.
*Available from:
PIEZO IGNITION SYSTEM
American National Standards Institute, Inc.
1430 Broadway
This heater has a piezo ignitor. This system requires no matches,
batteries, or other sources to light heater.
New York, NY 10018
THERMOSTATIC HEAT CONTROL
National Fire Protection Association, Inc.
Batterymarch Park
Thermostat models have a thermostat sensing bulb and a control
valve.Thisresultsinthegreatestheatercomfort.Thiscanalsoresult
in lower gas bills.
Quincy, MA 02269
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
AIR FOR COMBUSTION AND VENTILATION
Providing Adequate Ventilation
4
AIR FOR COMBUSTION AND
VENTILATION
Unusually tight construction is defined as construction
where:
WARNING: This heater shall not be installed in a
confined space or unusually tight construction un-
lessprovisionsareprovidedforadequatecombustion
and ventilation air. Read the following instructions to
insure proper fresh air for this and other fuel-burning
appliances in your home.
a. walls and ceilings exposed to the outside atmosphere
have a continuous water vapor retarder with a rating
of one perm (6x10-11 kg per pa-sec-m2) or less with
openings gasketed or sealed and
b. weather stripping has been added on openable win-
dows and doors and
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.
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 Ventilation Air
From Outdoors, page 6.
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.
If your home does not meet all of the three criteria above,
proceed to Determining Fresh-Air Flow For Heater Loca-
tion, page 5.
Exhaustfans,fireplaces,clothesdryers,andfuelburningappliances
drawairfromthehousetooperate.Youmustprovideadequatefresh
air for these appliances. This will insure proper venting of vented
fuel-burning appliances.
Confined and Unconfined Space
PROVIDING ADEQUATE VENTILATION
The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines a
confined space as a space whose volume is 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 and an unconfined space as
aspacewhosevolumeisnotlessthan50cubicfeetper1,000Btuper
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.
The following are excerpts from National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation
classifications:
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
* Adjoining rooms are communicating only if there are doorless
passageways or ventilation grills between them.
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.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
AIR FOR COMBUSTION AND VENTILATION
Determining Fresh-Air Flow For Heater Location
5
AIR FOR COMBUSTION AND
VENTILATION
Continued
4. Compare the maximum Btu/Hr the space can support with the actual
amount of Btu/Hr used.
DETERMINING FRESH-AIR FLOW FOR
HEATER LOCATION
__________________ Btu/Hr (maximum the space can support)
__________________ Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum the space can support)
60,000 Btu/Hr (actual amount of Btu/Hr used)
Determining if You Have a Confined or
Unconfined Space
Use this work sheet to determine if you have a confined or unconfined space.
Space:Includestheroominwhichyouwillinstallheaterplusanyadjoining
rooms with doorless passageways or ventilation grills between the rooms.
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:
1. Determine the volume of the space (length x width x height).
Length x Width x Height = ___________ cu. ft. (volume of space)
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 6.
Example: Space size 20 ft. (length) x 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 open-
ings, add the volume of these rooms to the total volume of the space.
B. Vent room directly to the outdoors. See Ventilation Air From Out-
doors, page 6.
2. Multiply the space volume by 20 to determine the maximum Btu/Hr
the space can support.
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.
__________ (volume of space) x 20 = (Maximum Btu/Hr the space
can support)
Example: 2560 cu. ft. (volume of space) x 20 = 51,200 (maximum
Btu/Hr the space can support)
WARNING: If the area in which the heater may be
operated is smaller than that defined as an uncon-
fined space or if the building is of unusually tight
construction,provideadequatecombustionandven-
tilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1/NFPA 54 Sec-
tion 5.3 or applicable local codes.
3. Add the Btu/Hr of all fuel burning appliances in the space.
Vent-free heater
Gas water heater*
Gas furnace
_____________ Btu/Hr
_____________ Btu/Hr
_____________ Btu/Hr
_____________ Btu/Hr
_____________ Btu/Hr
Vented gas heater
Gas fireplace logs
Other gas appliances* + _____________ Btu/Hr
Total = _____________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws com-
bustion air from the outdoors and vents to the outdoors.
Example:
40,000
Gas water heater
Vent-free heater
Total
_____________ Btu/Hr
20,000
+ _____________ Btu/Hr
60,000
= _____________ Btu/Hr
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
AIR FOR COMBUSTION AND VENTILATION
Ventilation Air
6
AIR FOR COMBUSTION AND
VENTILATION
12"
Continued
VENTILATION AIR
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation Air From Inside Building
Ventilation
Grills
into Adjoining
Room,
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, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion
and Ventilation for required size of ventilation grills or ducts.
Or
Remove
Door into
Adjoining
Room,
Option 1
Option 3
Ventilation Air From Outdoors
12"
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. Follow the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation
for required size of ventilation grills or ducts.
Figure 2 - Ventilation Air from Inside Building
IMPORTANT: Do not provide openings for inlet or outlet air into
attic if attic has a thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.
Ventilated
Outlet
Attic
Air
Outlet
Air
To Attic
To
Crawl
Space
Inlet
Air
Ventilated
Inlet Air
Crawl Space
Figure 3 - Ventilation Air from Outdoors
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION
Check Gas Type
Installation Items
Locating Heater
7
INSTALLATION
NOTICE: This heater is intended for use as supple-
mental heat. Use this heater along with your primary
heating system. Do not install this heater as your
primary heat source. If you have a central heating
system, you may run system’s circulating blower
while using heater. This will help circulate the heat
throughoutthehouse. Intheeventofapoweroutage,
you can use this heater as your primary heat source.
WARNING: Never install the heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, clothing, or other flam-
mable 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
WARNING: A qualified service person must in-
stall heater. Follow all local codes.
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
coveringsoroperatingheaterwhereimpurities(such
as, but not limited to, tobacco smoke, aromatic
candles, cleaning fluids, oil or kerosene lamps, etc.)
in the air exist, may discolor walls or cause odors.
CHECK GAS TYPE
Use only the correct type of gas (natural or propane/LP). If your gas
supply is not the correct gas type, do not install heater. Call dealer
where you bought heater for proper type heater.
INSTALLATION ITEMS
CEILING
Before installing heater, make sure you have the items listed below.
• for propane/LP gas, external regulator (supplied by installer)
• piping (check local codes)
36"
Minimum
6"
Minimum
From
Sides Of
Heater
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• ground joint union
• sediment trap
Left
Side
Right
Side
• tee joint
• pipe wrench
2" Minimum To
Top Surface
Of Carpeting,
Tile Or Other
Combustible
Material
• for natural gas, test gauge connection*
FLOOR
* A CSA design-certified equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge connection. The
optional CSA design-certified equipment shutoff valve can be
purchased from your dealer. See Accessories, page 24.
Figure4-MountingClearancesAsViewedFromFrontofHeater
IMPORTANT: Vent-free heaters add moisture to the air. Although
this is beneficial, installing heater in rooms without enough venti-
lation air may cause mildew to form from too much moisture. See
Air for Combustion and Ventilation, pages 4 through 6. If high
humidity is experienced, a dehumidifier may be used to help lower
the water vapor content in the air.
LOCATING HEATER
WARNING: Maintain the minimum clearances
shown in Figure 4. If you can, provide greater clear-
ances from floor, ceiling, and joining wall.
CAUTION:Ifyouinstalltheheaterinahomegarage
• heater pilot and burner must be at least 18 inches
above floor
You can locate heater on the floor, away from a wall. A wall
mounting bracket and floor base stand are included with this heater.
Determine which method is best for your application.
• 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,
page24. Ifplanningtousefan, locateheaternearanelectricaloutlet.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION
Thermostat Sensing Bulb
Installing Heater To Wall
8
INSTALLATION
Continued
Removing Front Panel Of Heater
THERMOSTAT SENSING BULB
1. Remove the four painted screws, two on each side of front panel.
2. Pull bottom of front panel forward, then out.
3. Remove any remaining packaging materials.
The thermostat sensing bulb has been placed inside the heater for
protection during shipping.
Locating Thermostat Sensing Bulb (for thermostat
applications)
1. Remove front panel of heater (see Figure 7).
2. Locate thermostat sensing bulb just under burner assembly.
IMPORTANT:Attachthermostatsensingbulbtobackofheaterfor
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.
Make sure the thermostat sensing bulb is pointing up.
Figure 7 - Removing Front Panel Of Heater
Thermostat Sensing Bulb
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 14 inches apart from their centers.
Attach mounting bracket to wall in one of two ways:
Clamp
1. Attaching to wall stud
2. Attaching to wall anchor
Attaching to Wall Stud: This method provides the strongest hold.
Insertmountingscrewsthroughmountingbracketandintowallstuds.
Figure 5 - Attaching Thermostat Sensing Bulb
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).
INSTALLING HEATER TO WALL
Mounting Bracket
Decide which method better suits your needs. Either method will
provide a secure hold for the mounting bracket.
Locate mounting bracket in heater carton. Remove mounting bracket
from heater carton.
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, page 9. If you can, provide greater clear-
ances from floor and joining wall.
Figure 6 - Mounting Bracket
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION
Installing Heater To Wall (Cont.)
9
INSTALLATION
Continued
2. Mark screw locations on wall (see Figure 8).
Attaching To Wall Anchor Method
Note: Only mark last hole on each end of mounting bracket.
Insert mounting screws through these holes only.
Forattachingmountingbrackettohollowwalls(wallareasbetween
studs) or solid walls (concrete or masonry)
3. Remove tape and mounting bracket from wall.
1. Drill holes at marked locations using 5/16" drill bit. For solid
walls (concrete or masonry), drill at least 1" deep.
12"
Min.
14"
2. Fold wall anchor as shown in Figure 9.
3. Insert wall anchor (wings first) into hole. Tap anchor flush to
wall.
Only Insert Mounting
Screws Through Last
Hole On Each End
18 3/4
Min.
"
4. For thin walls (1/2" or less), insert red key into wall anchor.
Push red key to “pop” open anchor wings. IMPORTANT: Do
not hammer key! For thick walls (over 1/2" thick) or solid
walls, do not pop open wings.
AdjoingWal
Floor
5. Place mounting bracket onto wall. Line up last hole on each
end of bracket with wall anchors.
30,000 Btu/hr Models
6. Insert mounting screws through bracket and into wall anchors.
7. Tighten screws until mounting bracket is firmly fastened to wall.
8"
Min.
14"
Placing Heater On Mounting Bracket
1. Locate two horizontal slots on back panel of heater.
Only Insert Mounting
Screws Through Last
Hole On Each End
18 3/4
Min.
"
2. Place heater onto mounting bracket. Slide horizontal slots onto
stand-out tabs on mounting bracket.
AdjoingWal
Floor
20,000 Btu/hr Models
Figure 10 - Popping Open
Anchor Wings For Thin Walls
Figure 9 - Folding Anchor
Figure 8 - Mounting Bracket Clearances
Attaching Mounting Bracket To Wall
Horizontal Slots
Note:Wall anchors, mounting screws, and spacers are in hardware
package. The hardware package is provided with heater.
Attaching To Wall Stud Method
Mounting Bracket
(attached to wall)
Stand-Out Tab
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.
Figure 11 - Mounting Heater Onto Mounting Bracket
3. Insert mounting screws through bracket and into wall studs.
4. Tighten screws until mounting bracket is firmly fastened to
wall studs.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION
Installing Heater To Wall (Cont.)
Mounting Heater To Floor
10
INSTALLATION
Continued
Installing Bottom Mounting Screws
1. Locate two bottom mounting holes. These holes are near bot-
tom on back panel of heater (see Figure 12).
MOUNTING HEATER TO FLOOR
Mounting Base Feet to Heater
1. Lay heater cabinet on its back on a table with the heater bot-
tom overhanging the table edge.
2. Mark screw locations on wall.
3. Remove heater from mounting bracket.
2. Align holes in base foot with mounting holes on bottom of
cabinet (see Figure 13).
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, page 9.
3. Secure base foot to heater using sheet metal screws.
4. Repeat for other side.
If installing bottom mounting screw into wall stud, drill holes
at marked locations using 9/64" drill bit.
Mounting Base Feet to Floor (Where required by
local code)
5. Replace heater onto mounting bracket.
6. Place spacers between bottom mounting holes and wall anchor
or drilled hole.
1. Remove front cover (see Removing Front Panel of Heater, page 8).
2. Position heater with base feet in desired location. Mark holes
for drilling. Remove heater with base.
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.
3. For carpeted floors, make a small cut with a sharp knife at
marked locations prior to drilling. If mounting base to a wood
floor, drill 1/8 inch diameter hole, 3/4 inch deep. (Do not use
anchors in wood floors).
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 11 and 12).
If mounting base to a concrete floor, drill with 1/4 inch diam-
eter concrete drill bit, 13/8 inches into floor. Insert anchors com-
pletely into holes.
4. Reposition heater with base feet over holes. Secure base to floor
with wood screws. See Figure 13.
Wood
Screw
Front View
Heater
Wall
Spacer
Base Foot
Side View
Sheet Metal Screw
Figure 13 - Installing Base Feet
Figure 12 - Installing Bottom Mounting Screws
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION
11
Connecting To Gas Supply
INSTALLATION
Continued
Typical Inlet Pipe Diameters
20,000 Btu/Hr Models - 3/8" or greater
30,000 Btu/Hr Models - 1/2" or greater
CONNECTING TO GAS SUPPLY
WARNING: This appliance requires a 3/8" NPT
(National Pipe Thread) inlet connection to the pres-
sure regulator.
Installation must include equipment 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 15).
WARNING: A qualified service person must con-
nect heater to gas supply. Follow all local codes.
IMPORTANT: Install an equipment shutoff valve in an accessible
location. The equipment shutoff valve is for turning on or shutting
off the gas to the appliance.
WARNING: For natural gas, never connect heater
to private (non-utility) gas wells. This gas is com-
monly known as wellhead gas.
Apply pipe joint sealant lightly to male NPT threads. This will
prevent excess sealant from going into pipe. Excess sealant in pipe
could result in clogged heater valves.
IMPORTANT: For natural gas, check gas line pressure before
connectingheatertogasline.Gaslinepressuremustbenogreaterthan
14 inches of water. If gas line pressure is higher, heater regulator
damage could occur.
WARNING: Use pipe joint sealant that is resistant
to liquid petroleum (LP) gas.
Install sediment trap in supply line as shown in Figure 15. 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
heatercontrols.Ifsedimenttrapisnotinstalledorisinstalledwrong,
heater may not run properly.
CAUTION: For propane/LP gas, never connect
heater directly to the propane/LP supply. This heater
requires an external regulator (not supplied). Install
the external regulator between the heater and pro-
pane/LP supply.
IMPORTANT: Hold the pressure regulator with wrench when
connecting it to gas piping and/or fittings. Do not over tighten pipe
connection to regulator. The regulator body could be damaged.
For propane/LP gas, the installer must supply an external regulator.
Theexternalregulatorwillreduceincominggaspressure. Youmust
reduce incoming gas pressure to between 11 and 14 inches of water.
Ifyoudonotreduceincominggaspressure,heaterregulatordamage
could occur. Install the external regulator with the vent pointing
downasshowninFigure14. Pointingtheventdownprotectsitfrom
freezing rain or sleet.
Note: Burner
Pressure
Regulator
bracket not
shown for
clarity
3/8" NPT
Pipe Nipple
External
Heater
Cabinet
Propane/LP
Regulator
Supply
Tank
Tee Joint
Ground Joint Union
Reducer
Bushing to
1/8" NPT
Test
Gauge
Connection*
Equipment
Shutoff Valve *
Vent
Pointing
Down
1/8" NPT
Plug Tap
Natural Gas
From Gas Meter
(5" W.C. to 10.5"
W.C. Pressure)
Tee
Joint
Figure 14 - External Regulator With Vent Pointing Down
3"
Sediment
Pipe
Propane/LP
From External
Regulator
(11" W.C. to 14"
W.C. Pressure)
Minimum
Trap
Nipple
CAUTION: Use only new, black iron or steel pipe.
Internally-tinnedcoppertubingmaybeusedincertain
areas. Check your local codes. Use pipe of large
enoughdiametertoallowpropergasvolumetoheater.
If pipe is too small, undue loss of volume will occur.
Cap
Figure 15 - Gas Connection
* A CSA design-certified equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge connection. Purchase
the optional CSA design-certified equipment shutoff valve from
your dealer. See Accessories, page 24.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
INSTALLATION
Checking Gas Connections
12
INSTALLATION
Continued
Pressure Testing Heater Gas Connections
CHECKING GAS CONNECTIONS
1. Open equipment shutoff valve (see Figure 16).
WARNING: Test all gas piping and connections
forleaksafterinstallingorservicing. Correctallleaks
at once.
2. For natural gas open main gas valve located on or near gas
meter. For propane/LPgas open propane/LP supply tank valve.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from equipment shutoff valve to thermostat
gas valve (see Figure 17 or 18). Apply a noncorrosive leak
detection fluid to all joints. Bubbles forming show a leak.
WARNING: Never use an open flame to check for
a leak. Apply a noncorrosive leak detection fluid to
all joints. Bubbles forming show a leak. Correct all
leaks at once.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, page 13). Check all other
internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 14).
CAUTION: For propane/LP gas, make sure exter-
nal regulator has been installed between propane/LP
supply and heater. See guidelines under Connecting
to Gas Supply, page 11.
8. Replace front panel.
Open
Equipment
Shutoff
Valve
Pressure Testing Gas Supply Piping System
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
O
Closed
1. Disconnect appliance with its appliance main gas valve (con-
trol valve) and equipment shutoff valve from gas supply pip-
ing system. Pressures in excess of 1/2 psig will damage heater
regulator.
Figure 16 - Equipment Shutoff Valve
Thermostat
Gas Valve
2. Cap off open end of gas pipe where equipment shutoff valve
was connected.
3. Pressurize supply piping system by either opening propane/LP
supply tank valve for propane/LP gas or opening main gas valve
located on or near gas meter for natural gas, or using com-
pressed air.
Gas
Meter
Equipment
Shutoff
Valve
4. Check all joints of gas supply piping system.Apply a noncorrosive
leak detection fluid to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff valve to gas supply.
Check reconnected fittings for leaks.
Figure 17 - Checking Gas Joints for Natural Gas
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
Thermostat
Propane/LP
Gas Valve
1. Close equipment shutoff valve (see Figure 16).
Supply
Tank
2. Pressurize supply piping system by either opening propane/LP
supply tank valve for propane/LP gas or opening main gas valve
located on or near gas meter for natural gas, or using com-
pressed air.
Equipment
Shutoff
Valve
3. Check all joints from gas meter for natural gas (see Figure 17)
or propane/LP supply tank for propane/LP gas, to equipment
shutoff valve (see Figure 18). Apply a noncorrosive leak de-
tection fluid to all joints. Bubbles forming show a leak.
4. Correct all leaks at once.
Figure 18 - Checking Gas Joints for Propane/LP Gas
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
OPERATING HEATER
For Your Safety Read Before Lighting
Lighting Instructions
13
OPERATING HEATER
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 more. This will al-
low air to bleed from the gas system.
FOR YOUR SAFETY READ
BEFORE LIGHTING
• If control knob does not pop up when released, contact a
qualified service person or gas supplier for repairs.
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result causing prop-
erty damage, personal injury or loss of life.
6. With control knob pressed in, push down and release igni-
tor 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.
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.
Note: If pilot does not stay lit, refer to Troubleshooting,
pages 17 through 19. Also contact a qualified service per-
son or gas supplier for repairs. Until repairs are made, light
pilot with match. To light pilot with match, see Manual
Lighting Procedure, page 14.
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 de-
partment.
7. Keep control knob pressed in for 30 seconds after lighting
pilot. After 30 seconds, release control knob.
• If control knob does not pop up when released, contact a
qualified service person or gas supplier for repairs.
Note: If pilot goes out, repeat steps 3 through 7. This
heater has a safety interlock system. Wait one (1) minute
before lighting pilot again.
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 techni-
cian or gas supplier. Force or attempted repair may result
in a fire or explosion.
8. Turn control knob counterclockwise
to desired
heating level. The main burner should light. Set control
knob to any heat level between HI and LO.
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.
CAUTION: Do not try to adjust heating levels by
using the equipment shutoff valve.
Ignitor Button
Control Knob
T
O
O F F
LO
I L
P
LIGHTING
H I
INSTRUCTIONS
IGNITOR
1. STOP! Read the safety information above.
Figure 19 - Control Knob In The OFF Position
2. Make sure equipment shutoff valve is fully open.
Thermocouple
Ignitor Electrode
Pilot Burner
3. Turn control knob clockwise
to the OFF position.
4. Wait five (5) minutes to clear out any gas. Then smell for
gas, including near the floor. If you smell gas, STOP! Fol-
low “B” in the safety information above. 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 Fig-
ure 19).
Figure 20 - Pilot (actual pilot may vary)
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
OPERATING HEATER
To Turn Off Gas To Appliance
Thermostat Control
Manual Lighting Procedure
INSPECTING HEATER
Pilot Flame Pattern
14
OPERATING HEATER
INSPECTING HEATER
Continued
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
TO TURN OFF GAS
TO APPLIANCE
Figure 21 shows a correct pilot flame pattern. Figure 22 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.
Shutting Off Heater
1. Turn control knob clockwise
to the OFF position.
2. Turn off all electric power to the appliance if service is to
be performed.
If pilot flame pattern is incorrect, as shown in Figure 22
• turn heater off (see To Turn Off Gas to Appliance)
• see Troubleshooting, pages 17 through 19
Shutting Off Burner Only (pilot stays lit)
Note: The pilot flame on natural gas units will have a slight curve,
but flame should be blue and have no yellow or orange color.
Turn control knob clockwise
to the PILOT position.
THERMOSTAT CONTROL
Thermocouple
Blue Flame
OPERATION
Pilot Burner
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
flameheight.Attimestheroommayexceedthesettemperature.
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.
Selecting the HI setting will cause the burner to remain fully on
without modulating down in most cases.
Figure 21 - Correct Pilot Flame Pattern
Yellow Flame
Pilot Burner
Thermocouple
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, instal-
lation location, room size, open air temperatures, etc.). Fre-
quent use of your heater will let you determine your own
comfort levels.
Figure 22 - Incorrect Pilot Flame Pattern
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see Figure 7, page 8).
2. Follow steps 1 through 5 under Lighting Instructions, page 13.
3. With control knob pressed in, strike 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. Now follow
step 8, under Lighting Instructions, page 13.
5. Replace front panel.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
INSPECTING HEATER
Burner Flame Heater
15
CLEANING AND MAINTENANCE
ODS/Pilot and Burner
Cleaning Burner Pilot Air Inlet
Cabinet
ODS/PILOT AND BURNER
• Use a vacuum cleaner, pressurized air, or small, soft bristled
brush to clean.
INSPECTING HEATER
Continued
BURNER FLAME PATTERN
CLEANING BURNER PILOT AIR INLET
The primary air inlet holes allow the proper amount of air to mix with
the gas. This provides a clean burning flame. Keep these holes clear
of dust, dirt, and lint. Clean these air inlet holes prior to each heating
season. Blocked air holes will create soot. We recommend that you
clean the unit every three months during operation and have heater
inspected yearly by a qualified service person.
WARNING: If yellow tipping occurs, your heater
could produce increased levels of carbon monoxide.
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.
We also recommend that you keep the burner tube and pilot
assembly clean and free of dust and dirt. To clean these parts we
recommendusingcompressedairnogreaterthan30PSI. Yourlocal
computer store, hardware store, or home center may carry com-
pressed air in a can. You can use a vacuum cleaner in the blow
position. If using compressed air in a can, please follow the direc-
tions on the can. If you don't follow directions on the can, you could
damage the pilot assembly.
Figure 23 shows a correct burner flame pattern. Figure 24 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.
If burner flame pattern is incorrect, as shown in Figure 24
• turn heater off (see To Turn Off Gas To Appliance, page 14)
• see Troubleshooting, pages 17 through 19
1. Shut off the unit, including the pilot. Allow the unit to cool for
at least thirty minutes.
Blue
Flame
2. Inspect burner, pilot for dust and dirt.
3. Blow air through the ports/slots and holes in the burner.
4. Never insert objects into the pilot tube.
1/2 Glass
Height
Clean the pilot assembly also. A yellow tip on the pilot flame
indicates dust and dirt in the pilot assembly. There is a small pilot
air inlet about two inches from where the pilot flame comes out of
the pilot assembly (see Figure 25). With the unit off, lightly blow air
through the air inlet. You may blow through a drinking straw if
compressed air is not available.
Figure 23 - Correct Burner Flame Pattern
Yellow Tipping
1/2 Glass
Height
Pilot Assembly
Figure 24 - Incorrect Burner Flame Pattern
CLEANING AND
MAINTENANCE
Pilot Air Inlet
WARNING: Turn off heater and let cool before
cleaning.
Figure 25 - Pilot Inlet Air (Propane/LP Pilot Shown)
CABINET
CAUTION: You must keep control areas, burner,
and circulating air passageways of heater clean.
Inspect these areas of heater before each use. Have
heaterinspectedyearlybyaqualifiedserviceperson.
Heater may need more frequent cleaning due to
excessive lint from carpeting, bedding material, pet
hair, etc.
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.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
SPECIFICATIONS
SERVICE HINTS
16
TECHNICAL SERVICE
SERVICE PUBLICATIONS
SPECIFICATIONS
CBN20/CBN20T
CBN30T
Btu (Variable)
Type Gas
Ignition
10,000/20,000
Natural Only
Piezo
15,000/30,000
Natural Only
Piezo
Pressure Regulator Setting
Inlet Gas Pressure (in. of water)
Maximum
3" W.C.
3" W.C.
10.5"
4"
10.5"
4"
Minimum
Dimensions, Inches (H x W x D)
Heater (Includes knobs & grill)
Carton
26.25 x 18.25 x 7
28.25 x 21.25 x 9
26.25 x 25.75 x 7
28.25 x 29 x 9
Weight (pounds)
Heater
20
25
28
33
Shipping
CBP20/CBP20T
CBP30T
Btu (Variable)
Type Gas
Ignition
10,000/20,000
Propane/LP Only
Piezo
15,000/30,000
Propane/LP Only
Piezo
Pressure Regulator Setting
Inlet Gas Pressure (in. of water)
Maximum
8" W.C.
8" W.C.
14"
11"
14"
11"
Minimum
Dimensions, Inches (H x W x D)
Heater (Includes knobs & grill)
Carton
26.25 x 18.25 x 7
28.25 x 21.25 x 9
26.25 x 25.75 x 7
28.25 x 29 x 9
Weight (pounds)
Heater
20
25
28
33
Shipping
SERVICE HINTS
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA International’s Technical
Service Department at 1-866-672-6040. When calling please have
your model and serial numbers of your heater ready.
When Gas Pressure Is Too Low
• pilot will not stay lit
• burner will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
You can also visit DESA International’s technical service web site
You may feel your gas pressure is too low. If so, contact your local
natural or propane/LP gas supplier.
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.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
TROUBLESHOOTING
17
TROUBLESHOOTING
Note: For additional help, visit DESA
International’stechnicalservicewebsite
WARNING: Turn off and un-
plug heater and let cool before
servicing. Only a qualified ser-
vice person should service and
repair heater.
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot.ThiscandamageODS/
pilot unit.
Note:Alltroubleshootingitemsarelistedin
order of operation.
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
When ignitor button is pressed, there is no
spark at ODS/pilot
1. Ignitor electrode positioned wrong
2. Ignitor electrode broken
1. Replace pilot assembly
2. Replace pilot assembly
3. Ignitor electrode not connected to igni- 3. Reconnect ignitor cable
tor cable
4. Ignitor cable pinched or wet
4. Free ignitor cable if pinched by any
metal or tubing. Keep ignitor cable dry
5. Broken ignitor cable
6. Bad piezo ignitor
5. Replace ignitor cable
6. Replace piezo ignitor
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
1. Gas supply turned off or equipment 1. Turn on gas supply or open equipment
shutoff valve closed
shutoff valve
2. Control knob not in PILOT position
2. Turn control knob to PILOT position
3. Control knob not pressed in while in 3. Press in control knob while in PILOT
PILOT position
position
4. Air in gas lines when installed
4. Continue holding down control knob. Re-
peat igniting operation until air is removed
5. Depleted gas supply (propane/LP gas only) 5. Contact local propane/LP gas company
6. ODS/pilot is clogged
6. Clean ODS/pilot (see Cleaning and
Maintenance, page 15) or replace ODS/
pilot assembly
7. Gas regulator setting is not correct
1. Control knob not fully pressed in
7. Replace gas regulator
ODS/pilot lights but flame goes out when
control knob is released
1. Press in control knob fully
2. Control knob not pressed in long enough 2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. Safety interlock system has been triggered 3. Wait one minute for safety interlock sys-
tem to reset. Repeat ignition operation
4. Equipment shutoff valve not fully open 4. Fully open equipment shutoff valve
5. Thermocouple connection loose at con- 5. Hand tighten until snug, then tighten 1/4
trol valve
turn more
6. Pilot flame not touching thermocouple, 6. A) Contact local natural or propane/LP
which allows thermocouple to cool,
causing pilot flame to go out. This prob-
lem could be caused by one or both of
the following:
gas company
B) Clean ODS/pilot (see Cleaning and
Maintenance, page 15) or replace ODS/
pilot assembly
A) Low gas pressure
B) Dirty or partially clogged ODS/pilot
7. Thermocouple damaged
8. Control valve damaged
7. Replace pilot assembly
8. Replace control valve
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
TROUBLESHOOTING
18
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
Burner does not light after ODS/pilot is lit
1. Burner orifice is clogged
1. Clean burner (see Cleaning and Mainte-
nance, page 15) or replace burner orifice
2. Contact local natural or propane/LP gas
company
2. Inlet gas pressure is too low
Delayed ignition of burner
1. Manifold pressure is too low
2. Burner orifice is clogged
1. Contact local natural or propane/LP gas
company
2. Clean burner (see Cleaning and Mainte-
nance, page 15) or replace burner orifice
Burner backfiring during combustion
Yellow flame during burner combustion
1. Burner orifice is clogged or damaged
1. Clean burner (see Cleaning and Mainte-
nance, page 15) or replace burner orifice
2. Replace burner
2. Burner damaged
3. Gas regulator defective
3. Replace gas regulator
1. Not enough air
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning and
Maintenance, page 15)
2. Gas regulator defective
3. Clogged or dirty burner
2. Replace gas regulator
3. Clean burner (see Cleaning and Main-
tenance, page 15)
Slight smoke or odor during initial operation 1. Residues from manufacturing processes 1. Problem will stop after a few hours of
operation
Heater produces a whistling noise when 1. Turning control knob to HI position 1. Turn control knob to LO position and
burner is lit
when burner is cold
2. Air in gas line
let warm up for a minute
2. Operate burner until air is removed from
line. Have gas line checked by local
natural or propane/LP gas company
3. Observe minimum installation clear-
ances (see Figure 4, page 7)
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice 4. Clean burner (see Cleaning and Mainte-
nance, page 15) or replace burner orifice
Whitepowderresidueformingwithinburner 1. When heated, vapors from furniture pol- 1. Turn heater off when using furniture
box or on adjacent walls or furniture
ish, wax, carpet cleaner, etc., may turn
into white powder residue
polish, wax, carpet cleaners, or similar
products
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
TROUBLESHOOTING
19
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.
• Immediatelycallyourgassupplierfromaneighbor’sphone. Followthe
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.
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
Heater produces a clicking/ticking noise 1. Metal expanding while heating or con- 1. This is common with most heaters. If
just after burner is lit or shut off
tracting while cooling
noise is excessive, contact qualified ser-
vice person
Heater produces unwanted odors
1. Heater burning vapors from paint, hair 1. Ventilate room. Stop using odor caus-
spray, glues, etc. (see IMPORTANT
ing products while heater is running
statement above)
2. Low fuel supply (propane/LP gas only) 2. Refill supply tank
3. Gas leak. SeeWarning statement at 3. Locate and correct all leaks (see Check-
top of page
ing Gas Connections, page 12)
Heater shuts off in use (ODS operates)
1. Not enough fresh air is available
2. Low line pressure
1. Open window and/or door for ventilation
2. Contact local natural or propane/LP gas
company
3. ODS/pilot is partially clogged
3. Clean ODS/pilot (see Cleaning and
Maintenance, page 15)
Gas odor even when control knob is in OFF 1. Gas leak. SeeWarning statement at 1. Locate and correct all leaks (see Check-
position
top of page
ing Gas Connections, page 12)
2. Control valve defective
2. Replace control valve
Gas odor during combustion
1. Foreign matter between control valve 1. Take apart gas tubing and remove for-
and burner eign matter
2. Gas leak. SeeWarning statement at 2. Locate and correct all leaks (see Check-
top of page
ing Gas Connections, page 12)
Moisture/condensationnoticedonwindows 1. Not enough combustion/ventilation air
1. Refer to Air for Combustion and Venti-
lation requirements (page 4)
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
ILLUSTRATED PARTS BREAKDOWN
CBN20, CBP20
20
ILLUSTRATED PARTS
BREAKDOWN
7
15
CBN20
CBP20
1
22
21
4
20
9
18
17
12
13
11
10
9
14
19
8
16
5
6
3
2
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
PARTS LIST
CBN20, CBP20
21
PARTS LIST
This list contains replaceable parts used in your heater. When
ordering parts, follow the instructions listed under Replacement
Parts on page 24 of this manual.
KEY PART NUMBER FOR
NO. CBN20
CBP20
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
097159-04
097159-04
107954-01
107879-02
110038-04
107677-01
098260-12
**
107894-08
098271-09
098249-01
110803-02
110186-01
103446-01
099387-05
103845-05
099066-02
Piezo Ignitor
Front Panel
Grill Guard
Control Valve
Glass Retainer
Glass
1
1
1
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
107954-01
107879-02
1110038-03
107677-01
098260-12
**
107894-08
098271-09
098249-01
110803-01
110186-01
103446-01
099387-05
103845-06
099066-02
Cabinet
Deflector Assembly
Ignitor Cable
Nut, M5
ODS/Pilot Assembly
Thermocouple Kit
Burner
3/16" Pilot Tubing
Injector
Mounting Bracket
Gas Regulator
Hex Nut
3/8" Outlet Tubing
3/8" Inlet Tubing
Valve Retainer Nut
Control Knob
Baffle
9
10
11
12
13
14
15
16
17
18
19
20
21
22
099415-17
____
099415-18
____
103570-04
103572-03
098508-01
098354-02
109303-04
103570-04
103572-03
098508-01
098354-02
109303-04
PARTS AVAILABLE — NOT SHOWN
100642-03
105345-01
107888-01
109483-01
GA4550
100642-03
105345-01
107888-01
109483-01
GA4550
Hardware Assembly
Cable Tie
Control Position Label
Lighting Instruction Plate
Base Kit
1
1
1
1
1
** Not a field replaceable part.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
ILLUSTRATED PARTS BREAKDOWN
CBN20T, CBP20T, CBN30T, CBP30T
22
7
ILLUSTRATED PARTS
BREAKDOWN
1
20
CBN20T, CBP20T
CBN30T, CBP30T
4
15
10
17
12
13
11
10
18
9
14
19
8
16
5
3
6
2
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
PARTS LIST
23
CBN20T, CBP20T, CBN30T, CBP30T
PARTS LIST
This list contains replaceable parts used in your heater. When
ordering parts, follow the instructions listed under Replacement
Parts on page 24 of this manual.
KEY
PART NUMBER FOR
NO. CBN20T
CBP20T
CBN30T
CBP30T
DESCRIPTION
QTY.
1
2
3
4
5
6
7
8
097159-04
107954-01
107879-02
098522-10
107677-01
098260-12
**
107894-08
098271-09
098249-01
110803-01
110186-01
103446-01
099387-03
103845-06
099066-02
099415-17
NJF 8C
097159-04
107954-01
107879-02
098522-11
107677-01
098260-12
**
107894-08
098271-09
098249-01
110803-02
110186-01
103446-01
099387-03
103845-05
099066-02
099415-18
NJF 8C
097159-04
107955-01
107879-01
098522-12
107677-01
098260-13
**
107894-09
098271-09
098249-01
110803-01
110186-01
103447-01
099387-03
103845-08
099066-02
099415-17
NJF 8C
097159-04
107955-01
107879-01
098522-13
107677-01
098260-13
**
107894-09
098271-09
098249-01
110803-02
110186-01
103447-01
099387-03
103845-07
099066-02
099415-18
NJF 8C
Piezo Ignitor
Front Panel
Grill Guard
Thermostat Gas Valve
Glass Retainer
Glass
1
1
1
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
Cabinet
Deflector Assembly
Ignitor Cable
Nut, M5
ODS/Pilot Assembly
Thermocouple Kit
Burner
3/16" Pilot Tubing
Injector
Mounting Bracket
Gas Regulator
Hex Nut
9
10
11
12
13
14
15
16
17
18
19
20
103255-02
103256-02
109303-04
103255-02
103256-02
109303-04
103255-02
103256-02
109303-03
103255-02
103256-02
109303-03
3/8" Outlet Tubing
3/8" Inlet Tubing
Baffle
PARTS AVAILABLE — NOT SHOWN
100642-03
105345-01
107888-01
109483-01
GA4550
100642-03
105345-01
107888-01
109483-01
GA4550
100642-03
105345-01
107888-01
109483-01
GA4550
100642-03
105345-01
107888-01
109483-01
GA4550
Hardware Assembly
Cable Tie
Control Position Label
Lighting Instruction Plate
Base Kit
1
1
1
1
1
** Not a field replaceable part.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
REPLACEMENT PARTS
ACCESSORIES
24
REPLACEMENT PARTS
ACCESSORIES
Note: Use only original replacement parts. This will protect your Purchasetheseheateraccessoriesfromyourlocaldealer. Iftheycan
warranty coverage for parts replaced under warranty.
not supply these accessories, either contact your nearest Parts
Central(seepage27)orcallDESAInternationalat1-866-672-6040
for referral information. You can also write to the address listed on
the back page of this manual.
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 1-866-672-6040.
When calling DESA International, have ready
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane/LP or natural gas)
• purchase date
EQUIPMENT SHUTOFF VALVE - GA5010
For all models. Equipment shutoff valve with 1/8" NPT tap.
Usually, we will ask you to return the 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 Cen-
tral (see page 27) or call DESA International at 1-866-672-6040 for
referral information.
When calling DESA International, have ready
• model number of your heater
• the replacement part number
FAN KITS - GA3250T
For all models. Provides better heat distribution. Makes heater more
efficient. Complete installation and operating instructions included.
Thermostatically-controlled, blower turns itself on and off as
required.
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
OWNER'S REGISTRATION FORM
In order to provide better customer service for this and future purchases, we recommend that you register your product with us.
You can register online at www.desatech.com. If access to our website is not available to you, please complete this Owner’s
Registration Form and mail to the address on the back of this owner’s manual. Please provide the following product information:
Brand:
(Comfort Glow, Vanguard, etc.)
Model:
(EFP33PR, VTGH33NR, etc.)
Date Purchased:
Serial Number:
First Name:
Address:
Note: Keep receipt for warranty verification.
7 or 9 digit number located on product or identification tag.
Last Name:
City:
State:
Zip:
Country:
Home Phone:
E-Mail:
(
)
-
Please answer the following questions to register your product with DESA International:
1. Where will the product be used?
❍❍Living/Family Room ❍❍Office/Warehouse ❍❍Utility Shed/Outbuilding ❍❍Garage ❍❍Bedroom ❍❍Bathroom ❍❍Other
2. If you bought this product yourself, did you plan to purchase this type of product before going into the store? ❍❍Yes ❍❍No
3. Who selected the product? ❍ Male ❍ Female ❍ Both
4. What is the population of your area? ❍❍Under 10,000 ❍❍10,000 to 25,000 ❍ 25,000 to 50,000 ❍❍50,000 to 100,000
❍❍100,000 to 250,000 ❍❍Over 250,000
5. What is your primary source of heat? ❍❍Propane (LP Gas) ❍❍Fuel Oil ❍❍Wood ❍❍Natural Gas ❍❍Electric ❍❍Other
6. How was the product installed? ❍❍Professional Installer ❍❍Self ❍❍Other
7. Cost of product excluding sales tax? $___________________
8. Cost to install product? $____________________
9. Type of store where product was purchased? ❍❍Hardware ❍❍Propane Dealer ❍❍Natural Gas/Utility Co. ❍❍Home Center/Builder’s Supply
❍❍Fireplace or Hearth Shop ❍❍Farm Store ❍❍Other
10. What motivated you to buy this product? ❍❍Sudden Cold Weather ❍❍Replace Older Model ❍❍D.I.Y. Home Project
❍❍Emergency Back-Up Heat ❍❍Heater was on Sale ❍❍Energy Savings/High Efficiency ❍❍Construction Project ❍❍Other
11. How did you learn about this product brand? ❍❍Advertising ❍❍Relative or Friend ❍❍Store Display ❍❍Other ________________________
12. Level of Education of Purchaser: ❍❍Some High School ❍❍Completed High School ❍❍Completed College ❍❍Completed Graduate School
13. Age of Purchaser: ❍❍Under 20 ❍❍20 - 29 ❍❍30 - 39 ❍❍40 - 49 ❍❍50 - 59 ❍❍60 or Over
14. Buyer’s total annual household income: ❍❍Under $15,000 ❍❍$15,000 to $19,999 ❍❍$20,000 to $34,999 ❍❍$35,000 to $49,999
❍❍$50,000 to $74,999 ❍❍$75,000 to $99,999 ❍❍$100,000 and Over
15. Store where product was purchased:
Name: ______________________________________
City: _______________________ State: __________
16. In choosing this product, how important were the following:
Not Important
Somewhat Important
Very Important
Availability
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
❍
Price
Brand Name
Overall Quality
Heat Output
Made in USA
Warranty
Local Service
Value for Price
Prior Brand Experience
Controls Location
Thermostat, Remote, or Manual Operation
Ease of Operation
Special Features
Salesperson’s Recommendation
Friend/Relative’s Recommendation
Portability
Quiet Operation
❍
❍
❍
Download from Www.Somanuals.com. All Manuals Search And Download.
PARTS CENTRAL
27
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.
Baltimore Electric
5 Manila Ave
Hamden, CT 06514-0322
1-800-397-7553
Master Parts Dist.
1251 Mound Ave. NW
Grand Rapids, MI 49504-2672
616-791-0505
Halco Enterprises
208 Carter Drive, Unit 21
West Chester, PA 19382-4500
610-430-7717
203-248-7553
1-800-446-1446
1-800-368-0803
Portable Heater Parts
342 N. County Rd. 400 East
Valparaiso, IN 46383-9704
219-462-7441
Washer Equipment Co.
1715 Main Street
Kansas City, MO 64108-2195
KS, MO, AR
Laporte’s Parts & Service
2444 N. 5th Street
Hartsville, SC 29550-7704
843-332-0191
1-888-619-7060
816-842-3911
Parts Department
Cans Unlimited
P.O. Box 645
Taylor, SC 29687-0013
803-879-3009
1-800-845-5301
East Coast Energy
707 Broadway
W. Long Branch, NJ 07764-1542
732-870-8809
FBD
1349 Adams Street
Bowling Green, KY 42103-3414
270-846-1199
1-800-755-8809
1-800-654-8534
Fax: 1-800-846-0090
Dayton Hardware
P.O. Box 275
North Dayton Station
Dayton, OH 45404-0275
937-258-3721
OHIO only 1-800-762-3426
107882-01E
Download from Www.Somanuals.com. All Manuals Search And Download.
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
VENT-FREE RESIDENTIAL GAS HEATERS
DESAInternationalwarrantsthisproducttobefreefromdefectsinmaterialsandcomponentsfortwo(2)yearsfromthedateoffirstpurchase, 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.
Thiswarrantyisextendedonlytotheoriginalretailpurchaser. Thiswarrantycoversthecostofpart(s)requiredtorestorethisheatertoproperoperating
condition and an allowance for labor when provided by a DESA Authorized Service Center. Warranty part(s) MUST be obtained through authorized
dealersofthisproductand/orDESAInternationalwhowillprovideoriginalfactoryreplacementparts. Failuretouseoriginalfactoryreplacementparts
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
ALLIMPLIEDWARRANTIES,INCLUDINGWARRANTIESOFMERCHANTABILITYANDFITNESSFORAPARTICULARPURPOSETO
TWO (2) YEARS ON ALL COMPONENTS 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:
TM
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
107882-01
Rev. E
09/02
107882 01
NOT A UPC
Download from Www.Somanuals.com. All Manuals Search And Download.
|