Desa FA-20BB Wall Heaters Owner manual

Desa FA-20BB Wall Heaters Owner manual
BLUE FLAME
VENT-FREE NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
FA-20BB
FAS-20BB
FA-30BB
FAS-30BB
FGH-30NGB
®
20,000 and 30,000
Btu/Hr Models
WARNING: If the information in this manual is
not followed exactly, a fire or explosion may
result causing property damage, personal
injury, or loss of life.
— Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
fire department.
— Installation and service must be performed by
a qualified installer, service agency, or the
gas supplier.
WARNING: Improper installation, adjustment, alteration,
service, or maintenance can
cause injury or property damage. Refer to this manual for
correct installation and operational procedures. For assistance or additional information consult a qualified installer, service agency, or the
gas supplier.
WARNING: This is an unvented
gas-fired heater. It uses air (oxygen) from the room in which it
is installed. Provisions for adequate combustion and ventilation air must be provided.
Refer to Air For Combustion
and Ventilationsection on page
4 of this manual.
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
Save this manual for future reference.
BLUE FLAME NATURAL GAS HEATER
SAFETY
INFORMATION
WARNING ICON
G 001
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.
1.
2.
3.
4.
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, persons 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.
5.
6.
7.
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.
If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any electrical switch; do
not use any phone in your building
• immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions
• if you cannot reach your gas supplier,
call the fire department
This heater shall not be installed in a
bedroom or bathroom.
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
This heater needs fresh, outside air ventilation to run properly. This heater has
an oxygen depletion sensor (ODS) pilot light safety system. The ODS shuts
down the heater if not enough fresh air
is available. See Air for Combustion
and Ventilation, pages 4 through 6.
Keep all air openings in front and bottom of heater clear and free of debris.
This will insure enough air for proper
combustion.
If heater shuts off, do not relight until
you provide fresh, outside air. If heater
keeps shutting off, have it serviced.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
Before using furniture polish, wax, carpet cleaner, or similar products, turn
heater off. If heated, the vapors from
these products may create a white powder residue within burner box or on
adjacent walls or furniture.
Never place any objects on the heater.
Surface of heater becomes very hot
when running heater. Keep children and
adults away from hot surface to avoid
burns or clothing ignition. Heater will
remain hot for a time after shutdown.
Allow surface to cool before touching.
Carefully supervise young children
when they are in same room with
heater.
Make sure grill guard is in place before running heater.
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.
Turn off and unplug heater and let cool
before servicing. Only a qualified service person should service and repair
heater.
Operating heater above elevations of
4,500 feet could cause pilot outage.
WARNING: Any change to
this heater or its controls can be
dangerous.
2
105568
OWNER’S MANUAL
PRODUCT
IDENTIFICATION
PRODUCT
FEATURES
Ignitor Button
Control Knob
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
Grill
Guard
Glass
Panel
Front
Panel
Heater
Cabinet
Figure 1 - Vent-Free Natural Gas Heater (Models FAS-20BB Shown)
LOCAL CODES
UNPACKING
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
ANS Z223.1, also known as NFPA 54*.
1.
2.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
3.
Remove heater from carton.
Remove all protective packaging applied to heater for shipment.
Check heater for any shipping damage.
If heater is damaged, promptly inform
dealer where you bought heater.
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
105568
3
This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.
THERMOSTATIC HEAT
CONTROL ON THERMOSTAT
MODELS FAS-20BB AND
FAS30-BB
These heaters have a control valve with a
thermostat sensing bulb. This results in the
greatest heater comfort and may result in
lower gas bills.
BLUE FLAME NATURAL GAS HEATER
AIR FOR
COMBUSTION AND
VENTILATION
WARNING: This heater shall
not be installed in a confined
space or unusually tight construction 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 are excerpts from National
Fuel Gas Code. NFPA 54/ANS 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 Construction
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 6x10-11 kg
per pa-sec-m2) or less with openings gasketed or sealed and
b. weather stripping has been
added on openable windows and
doors and
c. caulking or sealants are applied
to areas such as joints around
window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and
gas lines, and at other openings.
Confined and Unconfined Space
The National Fuel Gas Code (ANS Z223.1,
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 m3 per
kw) of the aggregate input rating of all
appliances installed in that space and an
unconfining 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.
This heater shall not be installed in a confined space or unusually tight construction
unless provisions are provided for adequate
combustion and ventilation air.
* Adjoining rooms are communicating only
if there are doorless passageways or ventilation grills between them.
If your home meets all of the three
criteria above, you must provide additional fresh air. See Ventilation Air
From Outdoors, page 6.
If your home does not meet all of the
three criteria above, proceed to Determining Fresh-Air Flow For Heater
Location, page 5.
4
105568
OWNER’S MANUAL
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: 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 openings, add the volume of these rooms to the total volume of
the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
_________________ (volume of space) ÷ 50 cu. ft. = (Maximum Btu/Hr the space can support)
Example: 2560 cu. ft. (volume of 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
Example:
Gas furnace
___________________ Btu/Hr
40,000
Gas water heater
Btu/Hr
Vented gas heater
___________________ Btu/Hr
20,000
Vent-free heater +
Btu/Hr
Gas fireplace logs
___________________ Btu/Hr
60,000
Total
=
Btu/Hr
Other gas appliances* + ___________________ Btu/Hr
Total
= ___________________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
_________________ Btu/Hr (maximum the space can support)
_________________ Btu/Hr (actual amount of Btu/Hr used)
Example: 51,200 Btu/Hr (maximum 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 Ventilation Air From Inside Building, page 6.
B. Vent room directly to the outdoors. See Ventilation Air From 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.
WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space,
or if building is of unusually tight construction, provide adequate combustion and ventilation air by one of the
methods described in the National Fuel Gas Code, ANS Z223.1, 1992, Section 5.3 or applicable local codes.
Continued
105568
5
BLUE FLAME NATURAL GAS HEATER
AIR FOR
COMBUSTION AND
VENTILATION
12"
Continued
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/ANS 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.
Ventilation
Grills
into Adjoining
Room,
Option 1
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.
Or
Remove
Door into
Adjoining
Room,
Option 3
12"
Figure 2 - Ventilation Air from Inside Building
Outlet
Air
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. Follow the
National Fuel Gas Code NFPA 54/ANS
Z223.1, Section 5.3, Air for Combustion and
Ventilation for required size of ventilation
grills or ducts.
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilated
Attic
Outlet
Air
To Attic
To
Crawl
Space
Inlet
Air
Inlet Air
Ventilated
Crawl Space
Figure 3 - Ventilation Air from Outdoors
6
105568
OWNER’S MANUAL
INSTALLATION
LOCATING HEATER
This heater is designed to be mounted on a wall.
NOTICE: This heater is intended
for use as supplemental 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 throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
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, 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 *
• 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.
WARNING: Maintain the minimum 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.
WARNING: Never install the
heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture,
clothing, or other flammable
objects are less than 36 inches
from the front, top, or sides of
the heater
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
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 Air for Combustion 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.
INSTALLING HEATER TO
WALL
Mounting Bracket
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 (such as tobacco smoke, aromatic candles,
cleaning fluids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls.
The mounting bracket is located on back
panel of heater. It has been taped there for
shipping. Remove mounting bracket from
back panel.
CEILING
36"
Minimum
6"
Minimum
From
Sides of
Heater
Mounting
Bracket
Figure 5 - Mounting Bracket
Right
Side
Left
Side
2" Minimum to Top
of Carpeting, Tile,
or Other Combustible
Material
FLOOR
Figure 4 - Mounting Clearances As Viewed
From Front of Heater
105568
7
Continued
BLUE FLAME NATURAL GAS HEATER
INSTALLATION
Marking Screw Locations
Attaching To Wall Stud Method
Continued
1.
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 screws until mounting bracket
is firmly fastened to wall studs.
Tape mounting bracket to wall where
heater will be located. Make sure
mounting bracket is level.
Removing Front Panel Of Heater
1.
2.
3.
4.
Remove two screws near bottom corners of front panel.
Lift straight up on grill guard until it stops.
Grill guard will slide up about 1/4".
Pull bottom of front panel forward, then
down.
Remove cardboard packing from grill
and glass.
WARNING: Maintain minimum
clearances shown in Figure 7. If
you can, provide greater clearances from floor and joining wall.
2.
Mark screw locations on wall (see Figure 7).
Note: Only mark last hole on each end
of mounting bracket. Insert mounting
screws through these holes only.
Remove tape and mounting bracket
from wall.
3.
Adjoining Wall
10 1/4"
Min.
17 3/8"
Only Insert Mounting
Screws Through Last
Hole On Each End
Figure 6 - Removing Front Panel Of Heater
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.
Floor
Models FA-30BB, FAS-30BB, and
FGH-30NGB
6 1/2"
Min.
Adjoining Wall
Methods For Attaching
Mounting Bracket To Wall
17 1/2"
Min.
17 3/8"
Only Insert Mounting
Screws Through Last
Hole On Each End
17 1/2"
Min.
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 8.
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: Do not hammer key!
For thick walls (over 1/2" thick) or solid
walls, do not pop open wings.
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 screws until mounting bracket
is firmly fastened to wall.
Floor
Models FA-20BB and FAS-20BB
Figure 8 - Folding Anchor
Figure 7 - Mounting Bracket Clearances
Attaching Mounting Bracket To
Wall
Note: Wall anchors, mounting screws, and
spacers are in hardware package. The hardware package is provided with heater.
8
Figure 9 - Popping Open Anchor Wings
For Thin Walls
105568
OWNER’S MANUAL
INSTALLATION
7.
Continued
Placing Heater On Mounting
Bracket
1.
2.
Locate two horizontal slots on back
panel of heater.
Place heater onto mounting bracket.
Slide horizontal slots onto stand-out tabs
on mounting bracket (see Figure 10).
Installing Bottom Mounting
Screws
1.
2.
3.
4.
5.
6.
Locate two bottom mounting holes.
These holes are near bottom on back
panel of heater (see Figure 11).
Mark screw locations on wall.
Remove heater from mounting bracket.
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 8.
If installing bottom mounting screw
into wall stud, drill holes at marked locations using 9/64" drill bit.
Replace heater onto mounting bracket.
Place spacers between bottom mounting holes and wall anchor or drilled hole.
Horizontal Slots
Stand-Out Tab
8.
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.
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 page 10).
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
well. This gas is commonly known
as wellhead gas.
IMPORTANT: Check gas line pressure before 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.
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.
Test
Gauge
Connection *
FA-30BB,
FAS-30BB,
FGH-30NG
1/2" or greater
CAUTION: Use pipe joint sealant that is resistant to natural gas.
Install sediment trap in supply line as shown
in Figure 12. 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.
Hold pressure regulator with wrench when
connecting it to gas piping and/or fittings.
Reducer Bushing
to 1/8" NPT
1/8" NPT Plug Tap
Tee Joint
Pipe Nipple
Cap
3/8" or greater
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.
Tee Joint
Sediment
Trap
FA-20BB,
FAS-20BB
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 12).
3/8" NPT
Pipe Nipple
Mounting Bracket
(attached to wall)
Figure 10 - Mounting Heater Onto Mounting Bracket
Typical Inlet Pipe Diameters
Pressure
Regulator
Heater
Cabinet
Ground
Joint Union
Manual Shutoff
Valve *
Typical Inlet
Pipe from
Gas Meter
(4" W.C. to
10.5" W.C.
Pressure)
3" Minimum
Figure 12 - Gas Connection
Figure 11 - Installing Bottom Mounting
Screws
105568
* 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.
Continued
9
BLUE FLAME NATURAL GAS HEATER
INSTALLATION
Continued
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
(3.5 K Pa)
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 (3.5 K Pa)
1. Close manual shutoff valve (see Figure 13).
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 14).
Apply mixture of liquid soap and water to gas joints. Bubbles forming show
a leak.
4. Correct all leaks at once.
Manual
Shutoff
Valve
Pressure Testing Heater Gas
Connections
1.
2.
3.
4.
5.
6.
Open
ON
POSIT
7.
O
POS
Closed
Figure 13 - Manual Shutoff Valve
8.
Open manual shutoff valve (see Figure 13).
Open main gas valve located on or near
gas meter.
Make sure control knob of heater is in
the OFF position.
Check all joints from manual shutoff
valve to thermostat gas valve (see Figure 14). Apply mixture of liquid soap
and water to gas joints. Bubbles forming show a leak.
Correct all leaks at once.
Light heater (see Operating Heater,
pages 11 and 12 for thermostat models
or pages 12 and 13 for non-thermostat
models). Check all other internal joints
for leaks.
Turn off heater (see To Turn Off Gas
to Appliance, page 12 for thermostat
models or page 13 for non-thermostat
models).
Replace front panel.
Gas Valve
Gas Meter
Manual
Shutoff Valve
Figure 14 - Checking Gas Joints
10
105568
OWNER’S MANUAL
LIGHTING
INSTRUCTIONS
OPERATING
HEATER
1.
THERMOSTAT MODELS
FAS-20BB AND FAS-30BB
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.
4.
5.
6.
Control Knob
Ignitor Button
PILOT
OFF
IH
105568
3.
LO
A. This appliance has a pilot which must
be lighted by hand. When lighting the
pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell all
around the appliance area for gas. Be
sure to smell next to the floor because
some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL
GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.
D. Do not use this appliance if any part
has been under water. Immediately
call a qualified service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been under water.
2.
STOP! Read the safety information
above.
Make sure manual shutoff valve is
fully open.
Turn control knob clockwise Clockwise
to the OFF position.
Wait five (5) minutes to clear out any
gas. Then smell for gas, including near
the floor. If you smell gas, STOP! Follow “B” in the safety information in
column 1. If you don’t smell gas, go
to the next step.
Turn control knob counterclockwise
to the PILOT position.
C-clockwise
Press in control knob for five (5) seconds (see Figure 15).
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.
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.
Figure 15 - Control Knob In The OFF
Position
11
7.
8.
Note: If pilot does not stay lit, refer
to Troubleshooting, pages 15 through
17. 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 12.
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. Wait one (1) minute before lighting pilot again.
Turn control knob counterclockwise
to desired heating level. The
C-clockwise
main burner should light. Set control
knob to any heat level between HI
and LO.
CAUTION: Do not try to adjust
heating levels by using the
manual shutoff valve.
Ignitor Electrode
Thermocouple
Figure 16 - Pilot
Pilot Burner
BLUE FLAME NATURAL GAS HEATER
MANUAL LIGHTING
PROCEDURE
OPERATING
HEATER
1.
Continued
2.
TO TURN OFF GAS
TO APPLIANCE
3.
Shutting Off Heater
1.
2.
Turn control knob clockwise Clockwise
to the OFF position.
Turn off all electric power to the appliance if service is to be performed.
Shutting Off Burner Only
(pilot stays lit)
Turn control knob clockwise
the PILOT position.
Clockwise
to
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.
Selecting the HI setting will cause the
burner to remain fully on without modulating down in most cases.
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.
4.
5.
Remove front panel (see Figure 6,
page 8).
Follow steps 1 through 5 under Lighting Instructions, page 11.
With control knob pressed in, strike
match. Hold match to pilot until pilot lights.
Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
Replace front panel.
NON-THERMOSTAT MODELS
FA-20BB, FA-30BB AND
FGH-30NGB
C. Use only your hand to push in or turn
the gas control knob. Never use tools.
If the knob will not push in or turn
by hand, don’t try to repair it, call a
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.
D. Do not use this appliance if any part
has been under water. Immediately
call a qualified service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been under water.
LIGHTING
INSTRUCTIONS
1.
2.
FOR YOUR SAFETY
READ BEFORE
LIGHTING
3.
WARNING: If you do not follow these instructions exactly, a
fire or explosion may result causing property damage, personal
injury or loss of life.
4.
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.
5.
12
6.
STOP! Read the safety information
above.
Make sure manual shutoff valve is
fully open.
Turn control knob clockwise
to the OFF position (see Figure 17,
page 13).
Wait five (5) minutes to clear out any
gas. Then smell for gas including
near the floor. If you smell gas,
STOP! Follow “B” in the safety information at left. If you don’t smell
gas, go to the next step.
Turn control knob counterclockwise
to the PILOT/IGN position.
Press in control knob for five (5) seconds (see Figure 17, page 13).
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.
Release control knob pressure and
turn clockwise
to OFF.
105568
OWNER’S MANUAL
OPERATING
HEATER
MANUAL LIGHTING
PROCEDURE
Continued
1.
7.
2.
8.
9.
Press in control knob and turn back
to PILOT/IGN. This should cause
the piezo ignitor to spark and light
the pilot gas. If needed, repeat steps
5 through 7 until pilot lights.
Note: If pilot does not stay lit, refer
to Troubleshooting, pages 15
through 17. 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.
Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
Note: If pilot goes out, repeat steps
3 through 7.
To light burner, slightly press in control knob and turn counterclockwise
. Release downward pressure on control knob while turning.
Set control knob to desired heating
position.
Note: Both HIGH, MED, and LOW
are locked positions. You must press
in control knob before turning it
from these positions.
3.
Figure 17 - Control Knob In The OFF
Position
Ignitor Electrode
Thermocouple
Pilot Burner
Figure 18 - Pilot
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1.
2.
CAUTION: Do not try to adjust heating levels by using the
manual shutoff valve.
3.
Slightly press in control knob and
to the
turn clockwise
PILOT/IGN position.
Fully press in control knob and turn
clockwise
to the OFF position.
Turn off all electric power to the appliance if service is to be performed.
Shutting Off Burner Only (pilot
stays lit)
Slightly press in control knob and turn
clockwise
to the PILOT position.
105568
4.
13
5.
Remove front panel (see Figure 6,
page 8).
Follow steps 1 through 5 under Lighting Instructions, page 12.
With control knob pressed in, strike
match. Hold match to pilot until pilot lights.
Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
Replace front panel.
BLUE FLAME NATURAL GAS HEATER
BURNER FLAME PATTERN
INSPECTING
BURNER
Check pilot flame pattern and burner flame
pattern often.
PILOT FLAME PATTERN
Figure 21 shows a correct burner flame
pattern. Figure 22 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.
Figure 19 shows a correct pilot flame pattern. Figure 20 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.
If burner flame pattern is incorrect, as shown
in Figure 22
• turn heater off (see To Turn Off Gas To Appliance, page 12 for thermostat models or
page 13 for non-thermostat models)
• see Troubleshooting, pages 15 through 17
If pilot flame pattern is incorrect, as shown
in Figure 20
• turn heater off (see To Turn Off Gas to Appliance, page 12 for thermostat models or
page 13 for non-thermostat models)
• see Troubleshooting, pages 15 through 17
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.
Pilot Burner
Thermocouple
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.
Figure 19 - Correct Pilot Flame Pattern
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
1
/2 Glass
Height
1/2 G
CORRECT FLAME PATTERN
AT HIGH POSITION
• Use a soft cloth dampened with a mild
soap and water mixture. Wipe the cabinet to remove dust.
Figure 21 - Correct Burner Flame Pattern
Thermocouple
Pilot Burner
Yellow Tipping
1
/2 Glass
Height
Figure 20 - Incorrect Pilot Flame Pattern
1/2 G
INCORRECT FLAME PATTERN
AT HIGH POSITION
Figure 22 - Incorrect Burner Flame Pattern
14
105568
OWNER’S MANUAL
TROUBLESHOOTING
Note: For additional help, visit DESA
International’s Technical Service web
site at www.desatech.com.
WARNING: Turn off and unplug heater and let cool before
servicing. Only a qualified service person should service and
repair heater.
CAUTION: Never use a wire,
needle, or similar object to clean
ODS/pilot. This can damage ODS/
pilot unit.
Note: All troubleshooting items are listed in
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
3. Ignitor electrode not connected to ignitor cable
4. Ignitor cable pinched or wet
1. Replace ignitor
2. Replace ignitor
3. Reconnect ignitor cable
5. Broken ignitor cable
6. Bad piezo ignitor
When ignitor button is pressed, there is
spark at ODS/pilot but no ignition
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
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. Manual shutoff valve not fully open
4. Thermocouple connection loose at control valve
5. Pilot flame not touching thermocouple,
which allows thermocouple to cool,
causing pilot flame to go out. This problem could be caused by one or both of
the following:
A) Low gas pressure
B) Dirty or partially clogged ODS/pilot
6. Thermocouple damaged
7. Control valve damaged
www.desatech.com
105568
15
4. Free ignitor cable if pinched by any
metal or tubing. Keep ignitor cable dry
5. Replace ignitor cable
6. 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, page 14) or replace ODS/
pilot assembly
6. Replace gas regulator
1. Press in control knob fully
2. After ODS/pilot lights, keep control
knob pressed in 30 seconds
3. Fully open manual shut-off valve
4. Hand tighten until snug, then tighten 1/4
turn more
5. A) Contact local natural gas company
B) Clean ODS/pilot (see Cleaning and
Maintenance, page 14) or replace ODS/
pilot assembly
6. Replace thermocouple
7. Replace control valve
Continued
BLUE FLAME NATURAL GAS HEATER
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 Maintenance, page 14) or replace burner orifice
2. Replace burner orifice
3. Contact local natural gas company
2. Burner orifice diameter is too small
3. 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 gas company
2. Clean burner (see Cleaning and Maintenance, page 14) or replace burner orifice
Burner backfiring during combustion
1. Burner orifice is clogged or damaged
1. Clean burner (see Cleaning and Maintenance, page 14) or replace burner orifice
2. Replace burner
3. Replace gas regulator
2. Burner damaged
3. Gas regulator defective
Yellow flame during burner combustion
1. Not enough air
2. Gas regulator defective
1. Check burner for dirt and debris. If
found, clean burner (see Cleaning and
Maintenance, page 14)
2. Replace gas regulator
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
burner is lit
1. Turning control knob to HI position
when burner is cold
2. Air in gas line
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 Maintenance, page 14) or replace burner orifice
3. Air passageways on heater blocked
4. Dirty or partially clogged burner orifice
White powder residue forming within deflector unit or on adjacent walls or furniture
1. When heated, vapors from furniture polish, wax, carpet cleaners, etc. turn into
white powder residue
1. Turn heater off when using furniture
polish, wax, carpet cleaners, or similar
products
www.desatech.com
16
105568
OWNER’S MANUAL
TROUBLESHOOTING
Continued
WARNING: If you smell gas
• Shut off gas supply.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your
building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the
gas supplier’s instructions.
• 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
just after burner is lit or shut off
1. Metal expanding while heating or contracting while cooling
1. This is common with most heaters. If
noise is excessive, contact qualified service person
Heater produces unwanted odors
1. Heater burning vapors from paint, hair
spray, glues, etc. (see IMPORTANT
statement above)
2. Gas leak. See Warning statement at
top of page
1. Ventilate room. Stop using odor causing products while heater is running
Heater shuts off in use (ODS operates)
1. Not enough fresh air is available
2. Low line pressure
3. ODS/pilot is partially clogged.
1. Open window and/or door for ventilation
2. Contact local natural gas company
3. Clean ODS/pilot (see Cleaning and
Maintenance, page 14)
Gas odor even when control knob is in OFF
position
1. Gas leak. See Warning statement at
top of page
2. Control valve defective
1. Locate and correct all leaks (see Checking Gas Connections, page 10)
2. Replace control valve
Gas odor during combustion
1. Foreign matter between control valve
and burner
2. Gas leak. See Warning statement at
top of page
1. Take apart gas tubing and remove foreign matter
2. Locate and correct all leaks (see Checking Gas Connections, page 10)
Moisture/condensation noticed on windows
1. Not enough combustion/ventilation air
1. Refer to Air for Combustion and Ventilation requirements (page 4)
www.desatech.com
105568
17
2. Locate and correct all leaks (see Checking Gas Connections, page 10)
BLUE FLAME NATURAL GAS HEATER
SPECIFICATIONS
Btu (Variable)
Type Gas
Ignition
Pressure Regulator Setting
Inlet Gas Pressure (in. of water)
Maximum
Minimum
Dimensions, Inches (H x W x D)
Heater (Includes knobs & grill)
Carton
Weight (pounds)
Heater
Shipping
FA-20BB
FAS-20BB
FA-30BB
FAS-30BB
FGH-30NGB
20,000/10,500
Natural Only
Piezo
3" W.C.
20,000/9,000
Natural Only
Piezo
3" W.C.
30,000/15,000
Natural Only
Piezo
3" W.C.
30,000/14,000
Natural Only
Piezo
3" W.C.
30,000/15,000
Natural Only
Piezo
3" W.C.
10.5"
4"
10.5"
4"
10.5"
4"
10.5"
4"
10.5"
4"
23 x 18.75 x 7
26 x 21 x 9
23 x 18.75 x 7
26 x 21 x 9
23 x 26 x 7
26 x 28.5 x 9
23 x 26 x 7
26 x 28.5 x 9
23 x 26 x 7
26 x 28.5 x 9
21
24.5
21.5
25
27.7
33.7
28.1
34.1
25
31
REPLACEMENT
PARTS
SERVICE HINTS
Note: Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
• pilot will not stay lit
• burner will have delayed ignition
• heater will not produce specified heat
PARTS UNDER WARRANTY
When Gas Pressure Is Too Low
When Gas Quality Is Bad
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Technical Service Department at 1-800-323-5190.
• pilot will not stay lit
• burner will produce flames and soot
• heater will backfire when lit
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 or natural gas)
• purchase date
You may feel your gas pressure is too low or
gas quality is bad. If so, contact your local
natural gas supplier.
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.
You can also visit DESA International’s
Technical Service web site at
www.desatech.com.
SERVICE
PUBLICATIONS
You can purchase service manual from the
address listed on the back page of this
manual. Send a check for $5.00 payable to
DESA International.
Usually, we will ask you to return the defective part to the factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Parts
Department at 1-800-972-7879 for referral
information.
When calling DESA International, have
ready
• model number of your heater
• the replacement part number
18
105568
OWNER’S MANUAL
ACCESSORIES
Purchase these heater accessories from your
local dealer. If they can not supply these
accessories, call DESA International’s Parts
Department at 1-800-972-7879 for referral
information. You can also write to the address listed on the back page of this manual.
FAN KITS - UH1000FB, AND
UHS1000FB
FLOOR MOUNTING STAND
MANUAL SHUTOFF VALVE GA5010
For all models. Manual shutoff valve with 1/8"
NPT tap.
Model UH3000BA (Shown) (FA-20BB and FAS-20BB)
Model UH5000BA (FA-30BB and FAS-30BB)
For locating heater on the floor, away from
a wall. Complete installation
instructions included.
For all models. Provides better heat distribution. Makes heater more efficient. Complete installation and operating instructions
included.
Manually controlled - UH1000FB. Includes
ON/OFF switch.
Thermostatically controlled - UHS1000FB.
Includes three settings: ON/OFF/AUTO.
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
1348 Dixwell Avenue
Hamden, CT 06514-0322
1-800-397-7553
203-248-7553
Parts Department
Portable Heater Parts
342 N. County Road
400 East
Valparaiso, IN 46383-9704
All States
219-462-7441
1-800-362-6951
FBD
1349 Adams Street
Bowling Green, KY 421033414
502-846-1199
1-800-654-8534
Four Flags Power Products
1115 Stateline Road
Niles, MI 49120-4728
616-684-2697
1-800-268-4983
Parts Only
105568
Master Parts Distribution
1251 Mound Avenue NW
Grand Rapids, MI 49504-2672
616-791-4760
1-800-446-1446
Halco Enterprises
208 Carter Drive, Unit 21
West Chester, PA 19382-4500
610-696-2670
1-800-368-0803
Washer Equipment Co.
1715 Main Street
Kansas City, MO 64108-2195
KS, MO, AR
816-842-3911
LA Porte's Parts & Service
2444 North 5th Street
Hartsville, SC 29550-7704
803-332-0191
Parts Department
East Coast Energy Products
707 Broadway
W. Long Branch, NJ 07764-1542
732-870-8809
1-800-755-8809
Cans Unlimited, Inc.
P.O. Box 645
Taylor, SC 29687-0013
All States
803-879-3009
1-800-845-5301
Tarantin Tank Co.
P.O. Box 6129
Freehold, NJ 07728-6129
908-780-9340
1-800-922-0724
Dayton Hardware
P.O. Box 275
North Dayton, OH 45404-0275
All States
937-258-3721
OH 1-800-762-3426
19
Heater & Fireplace Store
1922 N Route 9
Cape May Court, NJ 08210-1110
609-624-0678
BLUE FLAME NATURAL GAS HEATER
ILLUSTRATED
PARTS
BREAKDOWN
10
8
THERMOSTAT MODELS
FAS-20BB
FAS-30BB
9
16
29
1
18
3
4
11
5
7
7
6
14
22
7
15
14
7
26
16
12
25
23
13
26
24
17
19
21
20
18
28
2
27
7
24-1
24-2
28
7
ODS/Pilot Assembly
20
105568
OWNER’S MANUAL
PARTS LIST
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed
under Replacement Parts on page 18 of this manual.
THERMOSTAT MODELS
FAS-20BB
FAS-30BB
KEY
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
24-1
24-2
25
26
27
28
29
PART NUMBER FOR
FAS-20BB
FAS-30BB
L98409-10
L98409-09
L98006-02
L98006-01
L98410-07
L98410-06
L98501-02
L98501-01
L98502-02
L98502-01
L98807-02
L98807-01
L98817-01
L98817-01
L99850-03
L99850-01
L98815-01
L98815-01
L99066-01
L99066-01
L98130-01
L98130-01
L98411-01
L98411-01
L99029-03
L99029-03
L98801-01
L98801-01
L98806-01
L98806-01
L98115-03
L98115-03
L98123-06
L98123-06
L98126-01
L98126-01
L98506-02
L98506-01
L98507-01
L98507-01
L98508-03
L98508-01
L98504-01
L98504-01
L98505-01
L98505-01
L98071-03
L98071-03
098514-01
098514-01
L98071-07
L98071-07
L98805-01
L98805-01
L98514-01
L98514-01
L98010-07
L98010-06
L98011-01
L98011-01
L98085-01
L98085-01
DESCRIPTION
Cabinet Assembly
Front Panel Assembly
Deflector Unit
Glass
Upper Glass Retainer
Lower Glass Retainer
Self Tapping Screw
Thermostat Valve Assembly
Screw
Thermostat Valve Base
Ignitor
Ignitor Line
Pressure Regulator
Washer
Self Tapping Screw
Main Inlet Tube Assembly
ODS Line Assembly
Burner Inlet Tube Assembly
Burner
Burner Connector
Injector
Left Burner Support Bracket
Right Burner Support Bracket
ODS/Pilot Assembly
Thermocouple
Ignitor Electrode
ODS Upper Deflector
Nut
Grill
Grill Fastener
Mounting Bracket
QTY.
1
1
1
1
1
1
16
1
2
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
PARTS AVAILABLE — NOT SHOWN
100642-01
104892-30
L98098-01
L98100-01
L98080-02
105568
100642-01
104892-34
L98098-01
L98100-01
L98080-02
Hardware Kit
AGA Label
Gas Instruction Decal
Inside Warning Label
Thermostat Sensing Bulb Clip
21
1
1
1
1
2
BLUE FLAME NATURAL GAS HEATER
ILLUSTRATED
PARTS
BREAKDOWN
16
9
17
NON-THERMOSTAT MODELS
FA-20BB, FA-30BB, AND
FGH-30NGB
18
21
20
19
7
33
22
1
3
11
4
5
12
8
8
6
14
26
8
15
14
16
8
30
10
29
27
30
13
28
17
23
25
24
22
32
28-1
28-2
2
31
8
32
8
ODS/Pilot Assembly
22
105568
OWNER’S MANUAL
PARTS LIST
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed
under Replacement Parts on page 18 of this manual.
NON-THERMOSTAT MODELS
FA-20BB, FA-30BB, AND
FGH-30NGB
KEY
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
28-1
28-2
29
30
31
32
33
FA-20BB
L98409-08
L98006-02
L98410-07
L98501-02
L98502-02
L98807-02
---------L98817-01
L98034-01
L98411-01
L98061-03
L98079-01
L99029-03
L98801-01
L98806-01
L98115-06
L98123-09
L98127-01
L98128-01
L98129-01
L98055-01
L98126-03
L98506-02
L98507-01
L98508-09
L98504-01
L98505-01
L98071-03
098514-01
L98071-07
L98805-01
L98514-01
L98010-07
L98011-01
L98085-01
PART NUMBER FOR
FA-30BB
FGH-30NGB
L98409-07
L98409-07
L98006-01
L98006-01
L98410-06
L98410-06
L98501-01
------------L98502-01
------------L98807-01
----------------------L98503-01
L98817-01
L98817-01
L98034-01
L98034-01
L98411-01
L98411-01
L98061-03
L98061-03
L98079-01
L98079-01
L99029-03
L99029-03
L98801-01
L98801-01
L98806-01
L98806-01
L98115-06
L98115-06
L98123-08
L98123-08
L98127-01
L98127-01
L98128-01
L98128-01
L98129-01
L98129-01
L98055-01
L98055-01
L98126-03
L98126-03
L98506-01
L98506-01
L98507-01
L98507-01
L98508-07
L98508-07
L98504-01
L98504-01
L98505-01
L98505-01
L98071-03
L98071-03
098514-01
098514-01
L98071-07
L98071-07
L98805-01
L98805-01
L98514-01
L98514-01
L98010-06
L98010-06
L98011-01
L98011-01
L98085-01
L98085-01
DESCRIPTION
Cabinet Assembly
Front Panel Assembly
Deflector Unit
Glass
Upper Glass Retainer
Lower Glass Retainer
Steel Wind Shield
Self Tapping Screw
Control Valve
Ignitor Line
Control Knob
Control Knob Clip
Pressure Regulator
Washer
Self Tapping Screw
Main Inlet Tube Assembly
ODS Line
Lower Gas Outlet Tube Assembly
Medium Gas Outlet Tube Assembly
High Gas Outlet Tube Assembly
4-way Connector
Burner Inlet Tube Assembly
Burner
Burner Connector
Injector
Left Burner Support Bracket
Right Burner Support Bracket
ODS/Pilot Assembly
Thermocouple
Ignitor Electrode
ODS Upper Deflector
Nut
Grill
Grill Fastener
Mounting Bracket
QTY.
1
1
1
1
1
1
1
16
1
1
11
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
PARTS AVAILABLE — NOT SHOWN
100642-01
104892-28
L98098-01
L98100-01
105568
100642-01
104892-32
L98098-01
L98100-01
100642-01
104892-36
L98098-01
L98100-01
Hardware Kit
AGA Label
Gas Instruction Decal
Inside Warning Label
23
1
1
1
1
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
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 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:
INTERNATIONAL
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
www.desatech.com
105568 01
NOT A UPC
105568-01
L98110-01
REV. C
05/99
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