Daewoo DRVT-43 DVD VCR Combo User Manual

UNVENTED (VENT-FREE) BLUE FLAME GAS HEATER
SAFETY INFORMATION AND INSTALLATION MANUAL
MANUAL 10,000 BTU THERMOSTAT 10,000 BTU THERMOSTAT 20,000 BTU THERMOSTAT 30,000 BTU -
10542 AND 10543
10544 AND 10545
10546 AND 10547
10548 AND 10549
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.
Save this manual for future reference.
For more information, visit www.desatech.com
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
Ventilation section on page 5 of this manual.
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
TABLE OF CONTENTS
Safety Information ............................................... 3
Local Codes ........................................................ 4
Product Identification .......................................... 4
Unpacking ........................................................... 4
Product Features ................................................ 4
Air For Combustion And Ventilation .................... 5
Installation ........................................................... 7
Operating Heater .............................................. 15
Inpecting Heater ................................................ 18
Cleaning and Maintenance ............................... 19
2
Troubleshooting ................................................ 20
Specifications .................................................... 24
Service Hints ..................................................... 25
Technical Service .............................................. 25
Service Publications .......................................... 25
Replacement Parts ........................................... 25
Illustrated Parts Breakdown and Parts List ....... 26
Accessories ....................................................... 30
Parts Centrals ................................................... 31
Warranty Information .......................... Back Cover
www.desatech.com
113680-01A
SAFETY INFORMATION
IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, operate, or service this heater. Improper use of this heater can
cause serious injury or death
from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with
headaches, dizziness, or nausea. If you have these
signs, the heater may not be working properly. Get
fresh air at once! Have heater serviced. Some
people are more affected by carbon monoxide than
others. These include pregnant women, people with
heart or lung disease or anemia, those under the
influence of alcohol, and those at high altitudes.
Natural and Propane/LP Gas: Natural and propane/LP gases are fuel gases. Fuel gases are odorless. An odor-making agent are added to fuel gases.
The odor helps you detect a fuel gas leak. However, the odor added to fuel gas can fade. Fuel gas
may be present even though no odor exists.
Make certain you read and understand all warnings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.
WARNING: Any change to
this heater or its controls can be
dangerous.
WARNING: Do not use a
blower insert, heat exchanger
insert or other accessory not
approved for use with this heater.
Due to high temperatures, the
appliance should be located out
of traffic and away from furniture and draperies.
113680-01A
Do not place clothing or other
flammable material on or near
the appliance. 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 the same
room with heater.
Make sure grill guard is in place
before running heater.
Keep the appliance area clear
and free from combustible materials, gasoline and other flammable vapors and liquids.
1. This appliance is only for use with the type of
gas indicated on the rating plate. This appliance is not convertible for use with other gases.
2. Do not place propane/LP supply tank(s) inside any structure. Locate propane/LP supply
tank(s) outdoors.
3. This heater shall not be installed in a bathroom. 20,000 and 30,000 Btu/Hr heater models shall not be installed in a bedroom.
4. 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
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, page 5.
www.desatech.com
3
SAFETY INFORMATION
PRODUCT
IDENTIFICATION
Continued
6. Keep all air openings in front and bottom of
heater clear and free of debris. This will insure enough air for proper combustion.
7. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.
8. Do not run heater
• where flammable liquids or vapors are used
or stored
• under dusty conditions
9. 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.
10. 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.
11. Turn off and let cool before servicing. Only a
qualified service person should service and
repair heater.
12. Operating heater above elevations of 4,500
feet could cause pilot outage.
13. To prevent performance problems, do not use
propane/LP fuel tank of less than 100 lbs.
capacity.
14. Provide adequate clearances around air
openings.
LOCAL CODES
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:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Heater
Cabinet
Ignitor Button
Control Knob
Glass
Panel
Front
Panel
Grill Guard
Figure 1 - Vent-Free Gas Heater
UNPACKING
1. Remove heater from carton.
2. Remove all protective packaging applied to
heater for shipment.
3. Check heater for any shipping damage. If
heater is damaged, promptly inform dealer
where you bought heater.
PRODUCT FEATURES
SAFETY DEVICE
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.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no matches, batteries, or other sources to
light heater.
THERMOSTATIC HEAT CONTROL
Thermostat models have a thermostat sensing bulb
and a control valve. This results in the greatest
heater comfort. This can also result in lower gas
bills.
4
www.desatech.com
113680-01A
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 fuel-burning appliances.
PROVIDING ADEQUATE
VENTILATION
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
The information on pages 5 through 7 will help you
classify your space and provide adequate ventilation.
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.
If your home meets all of the three criteria
above, you must provide additional fresh
air. See Ventilation Air From Outdoors,
page 7.
If your home does not meet all of the three
criteria above, proceed to Determining
Fresh-Air Flow For Heater Location, page 6.
Confined and Unconfined Space
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 a space whose volume is not
less than 50 cubic feet per 1,000 Btu per hour (4.8
m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the
unconfined space.
* Adjoining rooms are communicating only if there
are doorless passageways or ventilation grills between them.
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.
113680-01A
www.desatech.com
5
AIR FOR COMBUSTION
AND VENTILATION
Continued
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Confined or
Unconfined Space
Use this work sheet to determine if you have a confined or unconfined space.
Space: Includes the room in which you will install
heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.
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. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
_______ (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)
3. Add the Btu/Hr of all fuel burning appliances in
the space.
Vent-free heater
______________ Btu/Hr
Gas water heater* ______________ Btu/Hr
Gas furnace
______________ Btu/Hr
Vented gas heater ______________ Btu/Hr
Gas fireplace logs ______________ Btu/Hr
Other gas appliances* + __________ Btu/Hr
Total
= __________ Btu/Hr
* Do not include direct-vent gas appliances. Direct-vent draws combustion air from the outdoors
and vents to the outdoors.
Example:
40,000
Gas water heater ______________
Btu/Hr
20,000
Vent-free heater + _____________
Btu/Hr
60,000
Total
= _____________
Btu/Hr
6
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 7.
B. Vent room directly to the outdoors. See Ventilation Air From Outdoors, page 7.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size
makes room unconfined.
If the actual Btu/Hr used is less than the maximum Btu/
Hr the space can support, the space is an unconfined
space. You will need no additional fresh air ventilation.
WARNING: If the area in
which the heater may be operated is smaller than that defined
as an unconfined space or if the
building is of unusually tight
construction, provide adequate
combustion and ventilation air
by one of the methods described
in the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 Section
5.3 or applicable local codes.
www.desatech.com
113680-01A
AIR FOR COMBUSTION
AND VENTILATION
Outlet
Air
Continued
Ventilated
Attic
Outlet
Air
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, ANSI Z223.1/NFPA 54, Section 5.3, Air for
Combustion and Ventilation for required size of
ventilation grills or ducts.
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, ANSI Z223.1/NFPA 54,
Section 5.3, Air for Combustion and Ventilation
for required size of ventilation grills or ducts.
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.
12"
To Attic
To
Crawl
Space
Inlet
Air
Inlet Air
Ventilated
Crawl Space
Figure 3 - Ventilation Air from Outdoors
INSTALLATION
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.
WARNING: A qualified service person must install heater.
Follow all local codes.
CHECK GAS TYPE
Ventilation
Grills
into Adjoining
Room,
Option 1
Ventilation Grills
Into Adjoining Room,
Option 2
Or
Remove
Door into
Adjoining
Room,
Option 3
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.
WARNING: This appliance
is equipped for (natural or propane/LP) gas. Field conversion
is not permitted.
12"
Figure 2 - Ventilation Air from Inside
Building
113680-01A
www.desatech.com
7
INSTALLATION
Continued
INSTALLATION ITEMS
Before installing heater, make sure you have the
items listed below.
• for propane/LP gas, external regulator (supplied
by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• ground joint union
• sediment trap
• tee joint
• pipe wrench
• for natural gas, test gauge connection*
* A CSA design-certified equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to
test gauge connection. The optional CSA designcertified equipment shutoff valve can be purchased
from your dealer. See Accessories, page 30.
LOCATING HEATER
This heater is designed to be mounted on a wall.
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 30.
WARNING: Never install the
heater
• in a bathroom
• 20,000 or 30,000 Btu in a bedroom
• 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
8
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, 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.
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, page 5. If high humidity is experienced, a dehumidifier may be used to
help lower the water vapor content in the air.
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 30. If planning to use fan,
locate heater near an electrical outlet.
CEILING
6"
Minimum
From
Sides Of
Heater
36"
Minimum
Right
Side
Left
Side
FLOOR
Minimum To
Top Surface
Of Carpeting,
2" Tile Or Other
Combustible
Material
Figure 4 - Mounting Clearances As
Viewed From Front of Heater
www.desatech.com
113680-01A
INSTALLATION
Continued
THERMOSTAT SENSING BULB
(Thermostat Models Only)
The thermostat sensing bulb has been placed below the heater.
1. Place clamp on thermostat sensing bulb as
shown in Figure 5. Clamp is provided in hardware package.
2. 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.
Clamp
Figure 7 - Removing Front Panel Of
Heater
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 centers are
Thermostat
13 inches apart for the 20,000 and 30,000 Btu/Hr
Sensing Bulb
units and 9 inches apart for the 10,000 Bru/Hr units.
Figure 5 - Attaching Thermostat Sensing Attach mounting bracket to wall in one of two ways:
Bulb
1. Attaching to wall stud
2. Attaching to wall anchor
INSTALLING HEATER TO WALL
Attaching to Wall Stud: This method provides the
Mounting Bracket
strongest hold. Insert mounting screws through
Locate mounting bracket in heater carton. Remove mounting bracket and into wall studs.
mounting bracket from heater carton.
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.
Figure 6 - Mounting Bracket
Marking Screw Locations
1. Tape mounting bracket to wall where heater
Removing Front Panel Of Heater
will be located. Make sure mounting bracket
1. Remove the two screws, one on each side of
is level.
front panel.
2. Pull bottom of front panel up and forward, then
WARNING: Maintain miniout.
mum clearances shown in Fig3. Remove any remaining packaging materials.
ure 8, page 10. If you can, provide
greater clearances from floor
and joining wall.
113680-01A
www.desatech.com
9
INSTALLATION
Continued
2. Mark screw locations on wall (see Figure 8).
Note: Only mark last hole on each end of
mounting bracket. Insert mounting screws
through these holes only.
3. Remove tape and mounting bracket from wall.
Adjoining Wall
12 1/2"
Min.
13"
Only Insert Mounting
Screws Through Last
Hole On Each End
18 3/4"
Min.
Floor
30,000 Btu/Hr Model
Adjoining Wall
9"
Min.
13"
Only Insert Mounting
Screws Through Last
Hole On Each End
18 3/4"
Min.
Floor
20,000 Btu/Hr Model
Adjoining Wall
7 1/2"
Min.
9"
Only Insert Mounting
Screws Through Last
Hole On Each End
20 1/2"
Min.
Attaching Mounting Bracket To Wall
Note: Wall anchors, mounting screws, and spacers are in hardware package. The hardware package is provided with heater.
Attaching To Wall Stud Method
For attaching mounting bracket to wall studs
1. Drill holes at marked locations using 9/64"
drill bit.
2. Place mounting bracket onto wall. Line up last
hole on each end of bracket with holes drilled
in wall.
3. Insert mounting screws through bracket and
into wall studs.
4. Tighten screws until mounting bracket is
firmly fastened to wall studs.
Attaching To Wall Anchor Method
For attaching mounting bracket to hollow walls
(wall areas between studs) or solid walls (concrete
or masonry)
1. Drill holes at marked locations using 5/16"
drill bit. For solid walls (concrete or masonry),
drill at least 1" deep.
2. Fold wall anchor as shown in Figure 9.
3. Insert wall anchor (wings first) into hole. Tap
anchor flush to wall.
4. For thin walls (1/2" or less), insert red key
into wall anchor. Push red key to “pop” open
anchor wings.
IMPORTANT: 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
10,000 Btu/Hr Model
Figure 8 - Mounting Bracket Clearances
10
Figure 9 - Folding
Anchor
www.desatech.com
Figure 10 - Popping
Open Anchor Wings
For Thin Walls
113680-01A
INSTALLATION
Continued
Placing Heater On Mounting Bracket
1. Locate two horizontal slots on back panel of
heater.
2. Place heater onto mounting bracket. Slide
horizontal slots onto stand-out tabs on mounting bracket.
Horizontal
Slots
Stand-Out Tab
Front View
Heater
Spacer
Mounting Bracket
(attached to wall)
Figure 11 - Mounting Heater Onto
Mounting Bracket
Installing Bottom Mounting Screws
1. Locate two bottom mounting holes. These
holes are near bottom on back panel of heater
(see Figure 12).
2. Mark screw locations on wall.
3. Remove heater from mounting bracket.
4. If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 under Attaching To Wall
Anchor Method, page 10.
If installing bottom mounting screw into wall
stud, drill holes at marked locations using
9/64" drill bit.
5. Replace heater onto mounting bracket.
6. Place spacers between bottom mounting holes
and wall anchor or drilled hole.
7. Hold spacer in place with one hand. With other
hand, insert mounting screw through bottom
mounting hole and spacer. Place tip of screw
in opening of wall anchor or drilled hole.
8. Tighten both screws until heater is firmly secured to wall. Do not over tighten.
Note: Do not replace front panel at this time.
Replace front panel after making gas connections and checking for leaks (see page 14).
Wall
Side View
Figure 12 - Installing Bottom Mounting
Screws
MOUNTING HEATER TO FLOOR
WITH OPTIONAL FLOOR KIT
Mounting Base Feet to Heater
1. Lay heater cabinet on its back on a table with
the heater bottom overhanging the table edge.
2. Align holes in base foot with mounting holes
on bottom of cabinet (see Figure 13).
3. Secure base foot to heater using sheet metal
screws.
4. Repeat for other side.
Wood
Screw
Base Foot
Sheet Metal Screw
Figure 13 - Installing Base Feet
Mounting Base Feet to Floor (Where
required by local code)
1. Remove front panel (see Removing Front
Panel of Heater, page 9).
2. Position heater with base feet in desired location. Mark holes for drilling. Remove heater
with base.
113680-01A
www.desatech.com
11
INSTALLATION
Continued
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).
If mounting base to a concrete floor, drill with
1/4 inch diameter concrete drill bit, 13/8 inches
into floor. Insert anchors completely into holes.
4. Reposition heater with base feet over holes.
Secure base to floor with wood screws. See
Figure 13, page 11.
CONNECTING TO GAS SUPPLY
WARNING: This appliance
requires a 3/8" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
WARNING: A qualified service person must connect heater
to gas supply. Follow all local
codes.
WARNING: For natural gas,
never connect heater to private
(non-utility) gas wells. This gas is
commonly known as wellhead gas.
IMPORTANT: For natural gas, check gas line
pressure before connecting heater to gas line. Gas
line pressure must be no greater than 10.5 inches
of water. If gas line pressure is higher, heater regulator damage could occur.
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 propane/LP supply.
For propane/LP gas, the installer must supply an
external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches
of water. If you do not reduce incoming gas pressure, heater regulator damage could occur. Install
the external regulator with the vent pointing down
as shown in Figure 14. Pointing the vent down
protects it from freezing rain or sleet.
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
volume will occur.
Typical Inlet Pipe Diameters
10,000/20,000 Btu/Hr Models - 3/8" or greater
30,000 Btu/Hr Models - 1/2" or greater
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, page 13).
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.
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.
Propane/LP
Supply Tank
External Regulator
Vent
Pointing
Down
Figure 14 - External Regulator With Vent
Pointing Down
12
www.desatech.com
113680-01A
CHECKING GAS CONNECTIONS
INSTALLATION
Continued
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 heater controls. If sediment
trap is not installed or is installed wrong, heater
may not run properly.
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.
Pressure
Regulator
Heater
Cabinet
Tee Joint
Reducer
Bushing to
1/8" NPT
Tee Joint
Ground Joint
Union
Equipment
Shutoff
Valve *
3" Min.
Pipe
Nipple
Natural Gas
From Gas Meter (4" W.C.
to 10.5" W.C. Pressure)
Propane/LP
From External Regulator
(11" W.C. to 14" W.C.
Pressure)
Figure 15 - Gas Connection
Cap
* 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 30.
113680-01A
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.
CAUTION: For propane/LP
gas, make sure external regulator has been installed between
propane/LP supply and heater.
See guidelines under Connecting to Gas Supply, page 12.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
1/8" NPT
Plug Tap
Sediment Trap
Test Gauge Connection*
3/8" NPT
Pipe Nipple
WARNING: Test all gas piping and connections, internal
and external to unit, for leaks
after installing or servicing. Correct all leaks at once.
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appliance main
gas valve (control valve) and equipment
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 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 compressed air.
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.
www.desatech.com
13
INSTALLATION
Continued
Test Pressures Equal To or Less Than 1/2
PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 16).
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 compressed air.
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 detection fluid to all joints. Bubbles forming show a leak.
4. Correct all leaks at once.
PRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure 16).
2. For natural gas open main gas valve located
on or near gas meter. For propane/LP gas 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.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, starting
on page 15). Check all other internal joints
for leaks.
7. Turn off heater (see To Turn Off Gas to Appliance, page 16 or 17, depending on your model
heater).
8. Replace front panel.
Equipment
Shutoff Valve
Gas
Meter
Equipment Shutoff Valve
Figure 17 - Checking Gas Joints for
Natural Gas
Propane/LP
Supply Tank
Equipment Shutoff Valve
Figure 18 - Checking Gas Joints for
Propane/LP Gas
Open
ON
POSIT
O
Closed
PO
Figure 16 - Equipment Shutoff Valve
14
www.desatech.com
113680-01A
OPERATING HEATER
MANUAL CONTROL MODELS
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: If you do not follow these instructions exactly,
a fire or explosion may result
causing property damage, personal injury or loss of life.
A. This appliance has a pilot which must be
lighted by hand. When lighting the pilot,
follow these instructions exactly.
B. BEFORE LIGHTING smell all around the
appliance area for gas. Be sure to smell next
to the floor because some gas is heavier than
air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not
use any phone in your building.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier, call
the fire department.
C. Use only your hand to push in or turn the
gas control knob. 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.
5. Press in control knob and turn counterclockwise
to the PILOT position.
Keep control knob pressed in for five (5)
seconds (see Figure 19).
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
allow air to bleed from the gas system.
• If control knob does not pop up when released, contact a qualified service person
or gas supplier for repairs.
6. With control knob pressed in, push down
and release ignitor button. This will light
pilot. The pilot is attached to the front of
burner. If needed, keep pressing ignitor
button until pilot lights.
Note: If pilot does not stay lit, refer to
Troubleshooting, page 20. 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 16.
7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
Note: If pilot goes out, repeat steps 5
through 7.
8. Press in and turn control knob counterclockwise
to the HIGH position.
After about five seconds, set control knob
to desired heat setting.
CAUTION: Do not try to adjust heating levels by using the
equipment shutoff valve.
Ignitor Button
PILOT
IGN
LIGHTING
INSTRUCTIONS
LOW
MED
1. STOP! Read the safety information above.
2. Make sure equipment shutoff valve is
fully open.
3. Press in and turn control knob clockwise
to the OFF position.
4. Wait five (5) minutes to clear out any gas.
Then smell for gas around heater and near
the floor. If you smell gas, STOP! Follow
“B” in the safety information above. If you
don’t smell gas, go to the next step.
113680-01A
Control Knob
OFF
HIGH
Figure 19 - Control Knob In The OFF
Position
Thermocouple
Ignitor Electrode
Pilot Burner
Figure 20 - Pilot (actual pilot may vary)
www.desatech.com
15
Continued
TO TURN OFF GAS
TO APPLIANCE
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.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise
to the PILOT position.
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see Figure 7, page 9).
2. Follow steps 1 through 5 under Lighting Instructions, page 15.
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.
5. Replace front panel.
6. Follow step 8, under Lighting Instructions,
page 15.
THERMOSTAT CONTROLLED
MODELS
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: If you do not follow these instructions exactly,
a fire or explosion may result
causing property damage, personal injury or loss of life.
A. This appliance has a pilot which must be
lighted by hand. When lighting the pilot,
follow these instructions exactly.
B. BEFORE LIGHTING smell all around the
appliance area for gas. Be sure to smell next
to the floor because some gas is heavier than
air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not
use any phone in your building.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier, call
the fire department.
C. Use only your hand to push in or turn the
gas control knob. 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. STOP! Read the safety information.
2. Make sure equipment shutoff valve is
fully open.
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! Follow “B” in the
safety information. 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 Figure 21).
Note: You may be running this heater for
the first time after hooking up to gas supply. If so, the control knob may need to be
pressed in for 30 seconds or more. 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.
Ignitor Button
Control Knob
PI
OFF LOT
OPERATING HEATER
Figure 21 - Control Knob In The OFF
Position
16
www.desatech.com
113680-01A
OPERATING HEATER
TO TURN OFF GAS
TO APPLIANCE
Continued
6. With control knob pressed in, push down
and release ignitor button. This will light
pilot. The pilot is attached to the front of
the burner. If needed, keep pressing ignitor button until pilot lights.
Note: If pilot does not stay lit, refer to
Troubleshooting, page 20. 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.
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.
8. Turn control knob counterclockwise
to desired heating level. The main burner
should light. Set control knob to any heat
level between 1 and 5.
CAUTION: Do not try to adjust heating levels by using the
equipment shutoff valve.
Thermocouple
Ignitor Electrode
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.
Shutting Off Burner Only (pilot stays lit)
to the PITurn control knob clockwise
LOT position.
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 1 and 5. Selecting
the 5 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.
MANUAL LIGHTING
PROCEDURE
Pilot Burner
Figure 22 - Pilot (actual pilot may vary)
113680-01A
1. Remove front panel (see Figure 7, page 9).
2. Follow steps 1 through 5 under Lighting Instructions, page 16.
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.
5. Replace front panel.
6. Follow step 8, under Lighting Instructions,
page 16.
www.desatech.com
17
INPECTING HEATER
Check pilot flame pattern and burner flame pattern often.
PILOT FLAME PATTERN
Figure 23 shows a correct pilot flame pattern. Figure 24 shows an incorrect pilot flame pattern. The
incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool.
When the thermocouple cools, the heater will shut
down.
If pilot flame pattern is incorrect, as shown in Figure 24
• turn heater off (see To Turn Off Gas to Appliance, page 16 or 17)
• see Troubleshooting, page 20
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.
Thermocouple
Blue Flame
Pilot Burner
BURNER FLAME PATTERN
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.
Figure 25 shows a correct burner flame pattern.
Figure 26 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 26
• turn heater off (see To Turn Off Gas To Appliance, page 16 or 17)
• see Troubleshooting, page 20
Blue
Flame
1
/2 Glass
Height
1/2 G
Figure 23 - Correct Pilot Flame Pattern
Figure 25 - Correct Burner Flame Pattern
Thermocouple
Yellow
Tipping
Yellow Flame
1
/2 Glass
Height
Pilot
Burner
1/2 G
Figure 26 - Incorrect Burner Flame
Pattern
Figure 24 - Incorrect Pilot Flame Pattern
18
www.desatech.com
113680-01A
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, pet hair, etc.
WARNING: Failure to keep
the primary air opening(s) of the
burner(s) clean may result in
sooting and property damage.
ODS/PILOT AND BURNER
1. Shut off the unit, including the pilot. Allow
the unit to cool for at least thirty minutes.
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.
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 27). With the unit
off, lightly blow air through the air inlet. You may
blow through a drinking straw if compressed air
is not available.
Pilot Assembly
Pilot Air Inlet
Figure 27 - Pilot Inlet Air - Propane/LP
Pilot Shown (Actual Pilot May Vary from
Illustration)
• Use a vacuum cleaner, pressurized air, or small,
soft bristled brush to clean.
CABINET
BURNER PILOT AIR INLET
Air Passageways
• Use a vacuum cleaner or pressurized air to clean.
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.
We also recommend that you keep the burner tube
and pilot assembly clean and free of dust and dirt.
To clean these parts we recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store, or home center may
carry compressed air in a can. You can use a
vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions
on the can. If you don't follow directions on the
can, you could damage the pilot assembly.
113680-01A
Exterior
• Use a soft cloth dampened with a mild soap and
water mixture. Wipe the cabinet to remove dust.
www.desatech.com
19
TROUBLESHOOTING
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 pilot assembly
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 equipment 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. Depleted gas supply (propane/LP gas only)
6. ODS/pilot is clogged
7. Gas regulator setting is not
correct
20
www.desatech.com
2. Replace pilot assembly
3. Reconnect ignitor cable
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
equipment 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. Contact local propane/LP gas
company
6. Clean ODS/pilot (see Cleaning
and Maintenance, page 19) or
replace ODS/pilot assembly
7. Replace gas regulator
113680-01A
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
POSSIBLE CAUSE
REMEDY
ODS/pilot lights but flame goes
out when control knob is released
1. Control knob not fully
pressed in
2. Control knob not pressed in
long enough
3. Safety interlock system has
been triggered
1. Press in control knob fully
4. Equipment shutoff valve not
fully open
5. Thermocouple connection
loose at control valve
6. Pilot flame not touching thermocouple, which allows
thermocouple to cool, causing pilot flame to go out. This
problem could be caused by
one or both of the following:
A) Low gas pressure
B) Dirty or partially clogged
ODS/pilot
7. Thermocouple damaged
8. Control valve damaged
Burner does not light after ODS/
pilot is lit
1. Burner orifice is clogged
2. Inlet gas pressure is too low
Delayed ignition of burner
1. Manifold pressure is too low
2. Burner orifice is clogged
Burner backfiring during combustion
1. Burner orifice is clogged or
damaged
2. Burner damaged
3. Gas regulator defective
113680-01A
www.desatech.com
2. After ODS/pilot lights, keep control knob pressed in 30 seconds
3. Wait one minute for safety interlock system to reset. Repeat
ignition operation
4. Fully open equipment shutoff
valve
5. Hand tighten until snug, then
tighten 1/4 turn more
6. A) Contact local natural or
propane/LP gas company
B) Clean ODS/pilot (see
Cleaning and Maintenance,
page 19) or replace ODS/pilot
assembly
7. Replace pilot assembly
8. Replace control valve
1. Clean burner (see Cleaning
and Maintenance, page 19) or
replace burner orifice
2. Contact local natural or propane/LP gas company
1. Contact local natural or propane/LP gas company
2. Clean burner (see Cleaning
and Maintenance, page 19) or
replace burner orifice
1. Clean burner (see Cleaning
and Maintenance, page 19) or
replace burner orifice
2. Replace burner
3. Replace gas regulator
21
TROUBLESHOOTING
Continued
OBSERVED PROBLEM
POSSIBLE CAUSE
Yellow flame during burner com- 1. Not enough air
bustion
2. Gas regulator defective
3. Clogged or dirty burner
REMEDY
1. Check burner for dirt and debris. If found, clean burner
(see Cleaning and Maintenance, page 19)
2. Replace gas regulator
3. Clean burner (see Cleaning
and Maintenance, page 19)
Slight smoke or odor during ini- 1. Residues from manufacturtial operation
ing processes
1. Problem will stop after a few
hours of operation
Heater produces a whistling noise 1. Turning control knob to 5 powhen burner is lit
sition when burner is cold
1. Turn control knob to 1 position and 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
clearances (see Figure 4, page 8)
4. Clean burner (see Cleaning
and Maintenance, page 19) or
replace burner orifice
2. Air in gas line
3. Air passageways on heater
blocked
4. Dirty or partially clogged
burner orifice
White powder residue forming 1. When heated, vapors from
within burner box or on adjacent
furniture polish, wax, carpet
walls or furniture
cleaners, etc. may turn into
white powder residue
22
www.desatech.com
1. Turn heater off when using
furniture polish, wax, carpet
cleaners, or similar products
113680-01A
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/tick- 1. Metal expanding while heating noise just after burner is lit or
ing or contracting while
shut off
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. Low fuel supply (propane/LP
gas only)
3. Gas leak. See Warning
statement above
1. Ventilate room. Stop using
odor causing products while
heater is running
Heater shuts off in use (ODS op- 1. Not enough fresh air is availerates)
able
2. Low line pressure
1. Open window and/or door for
ventilation
2. Contact local natural or propane/LP gas company
3. Clean ODS/pilot (see Cleaning
and Maintenance, page 19)
3. ODS/pilot
clogged
is
partially
Gas odor even when control knob 1. Gas leak. See Warning
is in OFF position
statement above
2. Control valve defective
2. Refill supply tank
3. Locate and correct all leaks
(see Checking Gas Connections, page 13)
1. Locate and correct all leaks
(see Checking Gas Connections, page 13)
2. Replace control valve
1. Foreign matter between control valve and burner
2. Gas leak. See Warning
statement above
1. Take apart gas tubing and remove foreign matter
2. Locate and correct all leaks
(see Checking Gas Connections, page 13)
Moisture/condensation noticed on 1. Not enough combustion/ventilation air
windows
1. Refer to Air for Combustion
and Ventilation requirements
(page 5)
Gas odor during combustion
113680-01A
www.desatech.com
23
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
Carton
Weight (pounds)
Heater
Shipping
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
10548
15,000/30,000
Natural
Piezo
3" W.C.
10546
10,000/20,000
Natural
Piezo
3" W.C.
10542/10544
5,000/10,000
Natural
Piezo
3" W.C.
10.5"
4"
10.5"
4"
10.5"
4"
211/4 x 25 x 81/2
24 x 271/4 x 93/4
211/4 x 171/2 x 81/2
241/2 x 201/2 x 93/4
211/4 x 131/2 x 8
24 x 16 x 93/4
25 lbs.
30 lbs.
21 lbs.
25 lbs.
16 lbs.
20 lbs.
10549
15,000/30,000
Propane/LP
Piezo
8" W.C.
10547
10,000/20,000
Propane/LP
Piezo
8" W.C.
10545
5,000/10,000
Propane/LP
Piezo
8" W.C.
14"
11"
14"
11"
14"
11"
211/4 x 25 x 81/2
24 x 271/4 x 93/4
211/4 x 171/2 x 81/2
241/2 x 201/2 x 93/4
211/4 x 131/2 x 8
24 x 16 x 93/4
25 lbs.
30 lbs.
21 lbs.
25 lbs.
16 lbs.
20 lbs.
10543
6,000/10,000
Propane/LP
Piezo
8" W.C.
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
24
14"
11"
211/4 x 131/2 x 8
24 x 16 x 93/4
16 lbs.
20 lbs.
www.desatech.com
113680-01A
SERVICE HINTS
REPLACEMENT PARTS
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 may feel your gas pressure is too low. If
so, contact your local natural or propane/LP gas
supplier.
Note: Use only original replacement parts. This
will protect your warranty coverage for parts replaced under warranty.
TECHNICAL SERVICE
You may have further questions about installation,
operation, or troubleshooting. If so, contact DESA
Heating Products’ Technical Service Department
at 1-866-672-6040. When calling please have your
model and serial numbers of your heater ready.
You can also visit DESA Heating Products’ technical service web site at www.desatech.com.
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 Heating Products
113680-01A
PARTS UNDER WARRANTY
Contact authorized dealers of this product. If they
can’t supply original replacement part(s), call
DESA Heating Products’ Technical Service Department at 1-866-672-6040.
When calling DESA Heating Products, 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
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 Central (see page 31)
or call DESA Heating Products at 1-866-672-6040
for referral information.
When calling DESA Heating Products, have ready
• model number of your heater
• the replacement part number
.
www.desatech.com
25
ILLUSTRATED PARTS BREAKDOWN
10,000 BTU/HR MANUAL CONTROL MODELS 10542 AND 10543
1
26
10
6
11
9
7
3
24
2
4
25
16
20
18
14
13
5
22
23
27
19
15
8
12
28
21
19-1
19-2
26
17
19-1
19-2
www.desatech.com
113680-01A
PARTS LIST
10,000 BTU/HR MANUAL CONTROL MODELS
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 25 of this manual.
PART NUMBER
KEY
NO.
10542
Manual NG
10543
Manual LP
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
19-1
19-2
20
21
22
23
24
25
26
27
28
114422-01
**
113644-01
113588-01
114011-01
113581-01
113608-01
104263-03
098354-06
097159-04
098271-02
099415-17
113706-01
114263-01
113678-01
098508-01
104259-01
099413-01
099059-05
098514-01
098594-01
098200-04
113586-01
113587-01
098249-01
111421-01
114013-01
113734-01
099553-01
NJF-8C
114422-01
**
113644-01
113588-01
114011-01
113581-01
113608-01
104263-03
098354-06
097159-04
098271-09
099415-18
113706-01
114263-01
113678-01
098508-01
104259-02
099413-02
110803-02
110186-01
098594-01
098200-04
113586-01
113587-01
098249-01
111421-01
114013-01
113734-01
109121-01
NJF-8C
Front Panel/Deflector Assy
Cabiet
Grill Guard
Baffle
Lower Baffle
Glass
Glass Bracket
Burner
Knob
Piezo Ignitor
Piezo Cable
Regulator
Inlet Tube
Outlet Tube
Pilot Tube
Valve Retainer Nut
Injector
Control Valve
ODS Pilot Assembly
Thermocouple
Ignitor Electrode
Valve Bracket
Right Burner Bracket
Left Burner Bracket
Pilot Nut
Snap Bushing
Baffle Cover Plate
Wall Mounting Bracket
Pilot Shield
Hex Nut
QTY.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
PARTS AVAILABLE — NOT SHOWN
113684-01
105345-01
114351-01
114351-02
114351-03
113684-01
105345-01
114351-01
114351-02
114351-03
Hardware Bag
Cable Tie
Lighting Instruction Tag (Eng)
Lighting Instruction Tag (Sp)
Warning Tag
1
1
1
1
1
** Not a field replaceable part.
113680-01A
www.desatech.com
27
ILLUSTRATED PARTS BREAKDOWN
10,000, 20,000, AND 30,000 BTU/HR TERMOSTAT MODELS
10544, 10545, 10546, 10547, 10548 AND 10549
1
27
6
11
25
7
3
12
4
23
24
2
5
19-1
19-2
10
22
26
8
19
14
20
19-1
19-2
18
21
17
9
13
16
15
28
www.desatech.com
113680-01A
PARTS LIST
10,000, 20,000, AND 30,000 BTU/HR TERMOSTAT MODELS
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions
listed under Replacement Parts on page 25 of this manual.
PART NUMBER
KEY
NO.
10544(10NG) 10546(20NG)
10545(10LP) 10547(20LP)
1
2
3
4
5
6
7
8
9
10
11
12
114422-01
**
113644-01
113588-01
114011-01
113581-01
113608-01
104263-03
113586-01
113587-01
097159-04
098271-02
098271-09
13
099415-17
099415-18
14
098522-11
098522-18
15
113592-01
16
113593-01
17
113678-02
18
104259-05
104259-06
19
099059-05
110803-02
19-1 098514-01
110186-01
19-2 098594-01
20
102394-02
21
NJF-8C
22
098249-01
23
111421-01
24
114013-01
25
113734-01
26
099553-01
109121-01
27
114642-01
114422-02
**
113644-02
113588-02
114011-02
113581-02
113608-02
103446-02
113586-01
113587-01
097159-04
098271-02
098271-09
099415-17
099415-18
098522-28
098522-11
113592-01
113593-01
113678-02
103845-06
103845-05
099059-05
110803-02
098514-01
110186-01
098594-01
102394-02
NJF-8C
098249-01
111421-01
114013-01
113735-01
099553-01
109121-01
—
113684-01
105345-01
114351-01
114351-02
114351-03
113684-01
105345-01
114351-01
114351-02
114351-03
10548(30NG)
10549(30LP)
DESCRIPTION
114422-03
**
113644-03
113588-03
114011-03
113581-03
113608-03
103447-06
113586-01
113587-01
097159-04
098271-02
098271-09
099415-17
099415-18
098522-12
098522-30
113592-01
113593-01
113678-02
103845-08
103845-07
099059-05
110803-02
098514-01
110186-01
098594-01
102394-02
NJF-8C
098249-01
111421-01
114013-01
113735-01
099553-01
109121-01
—
Front Panel Assembly
Cabinet
Grill Guard
Baffle
Lower Baffle
Glass
Glass Bracket
Burner
Right Burner Bracket
Left Burner Bracket
Piezo Ignitor
Piezo Cable (Natural Gas)
Piezo Cable (Propane/LP Gas)
Regulator (Natural Gas)
Regulator (Propane/LP Gas)
Control Valve (Natural Gas)
Control Valve (Propane/LP Gas)
Inlet Tube
Outlet Tube
Pilot Tube
Injector (Natural Gas)
Injector (Propane/LP Gas)
ODS Pilot Assembly (Natural Gas)
ODS Pilot Assembly (Propane/LP Gas)
Thermocouple (Natural Gas)
Thermocouple (Propane/LP Gas)
Ignitor Electrode
Valve Bracket
Hex Nut
Pilot Nut
Snap Bushing
Baffle Cover Plate
Wall Mounting Bracket
Pilot Shield (Natural Gas)
Pilot Shield (Propane/LP Gas)
Discharge Air Baffle
QTY.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
PARTS AVAILABLE — NOT SHOWN
113684-01
105345-01
114351-01
114351-02
114351-03
Hardware Bag
Cable Tie
Lighting Instruction Tag (Eng)
Lighting Instruction Tag (Sp)
Warning Tag
1
1
1
1
1
** Not a field replaceable part.
113680-01A
www.desatech.com
29
ACCESSORIES
Purchase these heater accessories from your local
dealer. If they can not supply these accessories, either contact your nearest Parts Central (see page 31)
or call DESA Heating Products at 1-866-672-6040
for referral information. You can also write to the
address listed on the back page of this manual.
EQUIPMENT SHUTOFF VALVE
GA5010
For all models. Equipment shutoff valve with 1/8"
NPT tap.
BASE KIT - GA4550
For all models. For locating heater on the floor,
away from a wall. Complete installation and operating instructions included.
ELECTRONIC IGNITOR KIT - GA435
Not Shown
For all piezo ignitor models. Provides easier lighting of the pilot.
FAN KITS - GA3210T
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.
30
www.desatech.com
113680-01A
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.
Tool & Equipment Company
1348 Dixwell Avenue
Hamden, CT 06514-0322
1-800-397-7553
203-248-7553
Parts Department
Washer Equipment Co.
1715 Main Street
Kansas City, MO 64108-2195
KS, MO, AR
816-842-3911
www.washerparts.com
Portable Heater Parts
342 N. County Rd. 400 East
Valparaiso, IN 46383-9704
All States
219-462-7441
1-888-619-7060
sales@portableheaterparts.com
techservice@portableheaterparts.com
East Coast Energy Products
707 Broadway
W. Long Branch, NJ 07764-1542
732-870-8809
1-800-755-8809
www.njplaza.com/ecep
FBD
1349 Adams Street
Bowling Green, KY 42103-3414
270-846-1199
1-800-654-8534
Fax: 1-800-846-0090
franktalk@aol.com
Master Parts Dist.
1251 Mound Ave. NW
Grand Rapids, MI 49504-2672
616-791-0505
1-800-446-1446
Fax: 616-791-8270
www.nbmc.com
113680-01A
Laporte’s Parts & Service
2444 N. 5th Street
Hartsville, SC 29550-7704
843-332-0191
Parts Department
Cans Unlimited, Inc.
P.O. Box 645
Taylor, SC 29687-0013
All States
803-879-3009
1-800-845-5301
cuisales@aol.com
www.desatech.com
31
WARRANTY INFORMATION
KEEP THIS WARRANTY
Model _______________________________
Serial No. ____________________________
Date of Purchase ______________________
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 Heating Products 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
Heating Products Authorized Service Center. Warranty part(s) MUST be obtained through authorized dealers
of this product and/or DESA Heating Products 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
HEATING PRODUCTS’ LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA HEATING PRODUCTS SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of
incidental or consequential damages, so the above limitation on implied warranties, or exclusion or limitation
on damages may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights that vary from state to state.
For information about this warranty write:
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004
www.desatech.com
113680 01
NOT A UPC
113680-01
Rev. A
06/04