Desa PORTABLE PROPANE-LP HEATER User Manual
PORTABLE PROPANE/LP HEATER
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OWNER’S OPERATION AND INSTALLATION MANUAL
For Recreational and Commercial Use
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 quali-
fied 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.
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.
TABLE OF CONTENTS
Safety Information ............................................... 2
Local Codes ........................................................ 4
Product Identification ........................................... 5
Unpacking ........................................................... 5
Product Features ................................................. 5
Propane/LP Supply .............................................. 5
Installation ........................................................... 5
Lighting and Operating Instructions ..................... 6
Cleaning and Maintenance .................................. 8
Troubleshooting .................................................
Specifications .................................................... 13
Technical Service ..............................................
Service Hints ..................................................... 13
Accessories ....................................................... 13
Replacement Parts ............................................ 13
Illustrated Parts Breakdown and Parts List ....... 14
Warranty Information ...........................
Back Cover
10
13
SAFETY INFORMATION
WARNING: This product contains and/or generates chemicals
known to the state of California
to cause cancer or birth defects,
or other reproductive harm.
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.
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DANGER: Carbon monoxide
poisoning may lead to death!
When used without adequate combustion and
ventilation air, this heater may give off excessive
carbon monoxide, an odorless, poisonous gas.
WARNING: Early signs of
carbon monoxide poisoning resemble the flu, with headaches,
dizziness, and nausea. If you
have these signs, the heater may
not be working properly. Get
fresh air at once! Have heater
serviced.
Some people, including pregnant women, people
with heart or lung disease, anemia, those under the
influence of alcohol, and those at high altitudes, are
more affected by carbon monoxide than others.
113997-01B
SAFETY INFORMATION
Continued
Propane/LP Gas: Propane/LP gas is odorless.
An odor-making agent is added to propane/LP
gas. The odor helps you detect a fuel gas leak.
However, the odor added to propane/LP gas can
fade. Propane/LP gas may be present even though
no odor exists.
Make certain you read and understand all warn
ings. 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 any
accessory not approved for use
with this heater.
WARNING: If the recreational
or commercial enclosure does
not have a window or roof vent,
Do not use this heater inside.
This heater should be inspected
before each use. Frequent cleaning may be required. The control
compartments, burners and cir
culating air passageways of the
heater must be kept clean.
Due to high temperatures, the
appliance should be located out
of traffic and away from combustible materials.
Children and adults should be
alerted to the hazard of high
surface temperature and should
stay away to avoid burns or
clothing ignition.
Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.
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Heater will remain hot for a time
after shutdown. Allow surface to
cool before touching.
Young children should be carefully supervised when they are
near the heater.
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Any safety screen or guard
removed for servicing the appliance must be replaced prior
to operating the heater.
Keep the appliance area clear
and free from combustible materials, gasoline and other flammable vapors and liquids.
1. Install and use heater with care. Follow all
local ordinances and codes. In the absence
of local ordinances and codes, refer to the
Standard for Storage and Handling of Lique
fied Petroleum Gas, ANSI/NFPA 58 and the
Natural Gas Installation Code, CAN/CGA
B149.2. This instructs on the safe storage and
handling of propane/LP gases.
2. 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.
3. This heater may be used in a recreational
enclosure or temporary construction work
enclosure with a remote refillable propane/LP
cylinder ONLY when the cylinder is located
outdoors and the heater is used with the hose
kit 100427-01. NEVER bring a refillable pro
pane/LP cylinder indoors. A fire or explosion
can occur causing property damage, serious
injury or death.
4. Use only the factory preset regulator provided
with the heater. Use only replacement pressure
regulators specified in this manual.
5. If used, inspect the hose before each use of
the heater. If it is evident there is excessive
abrasion or wear, or the hose is cut, it must
be replaced prior to the heater being put into
operation. Use replacement hose assembly kit
100427-01 (see Accessories, page 13).
6. Use only propane gas set up for vapor with
drawal.
7. This heater shall not be installed in a bedroom
or bathroom.
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3113997-01B
SAFETY INFORMATION
Continued
8. 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. You must provide
a minimum 10 square inches (6.5 square cm)
of ventilation air for adequate combustion.
9. If heater shuts off, do not relight until you
provide fresh, outside air. If heater keeps
shutting off, have it serviced.
10. Keep all air openings in front and bottom of
heater clear and free of debris. This will insure
enough air for proper combustion.
11. 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.
12. When heater is placed on the ground, make sure
the ground is level and keep any objects at least
24" (60 cm) from the front of the heater. This
heater is equipped with a tip over switch that
will shut the heater off if the heater tips over.
However, do not leave heater unattended or
where children may cause the heater to tip over.
Never operate the heater while sleeping!
13. Gas pressure at heater is regulated and fixed
at 11" W.C. When using a remote hose con
nection do not regulate or reduce propane tank
supply pressure to heater!
14. Regulator in heater must always be in place
during operation.
15. Turn off and let cool before servicing. Only
a qualified service person should service and
repair heater.
16. Turn off propane/LP supply when not in
use.
17. Check heater for damage before each use. Do
not use a damaged heater.
18. Do not alter heater. Keep heater in its original
state.
19. Do not use heater if altered.
20. Before using the heater provide adequate
ventilation. An area of 10 square inches (6.5
square cm) of opening of a window or roof
vent is needed for adequate combustion and
ventilation air.
21. This heater is safe for indoor use in small
recreational enclosures, having means for pro
viding combustion air and ventilation, such as
enclosed porches, cabins, fishing huts, trailers,
tent trailers, tents, truck caps and vans. It may
be used for emergency indoor heating when
connected to a disposable 1 lb. propane/LP
cylinder and for indoor use in commercial
enclosures, having means for providing com
bustion air and ventilation, such as construction
trailers or temporary work enclosures.
22. When the heater is cold or at room tempera
ture, it will take a few minutes for the burner
tile to turn bright orange. This is normal and
the heater is working properly. If burner tile
is visibly flaming, turn heater off and call a
qualified service technician.
23. When the unit is lit, there should be about a
quarter inch border around the tile that will
not turn bright orange. This is normal.
24. When operating the heater for the first time,
the top area of the reflector may discolor. This
is also normal and is no reason for concern.
25. When operating the heater at altitudes over
7,000 feet (2,100 m) above sea level, the unit
may not burn as bright as in lower altitudes.
This is normal. At higher altitudes, the heater
may shut-off. If this happens, provide fresh
air, wait 5 minutes and relight heater.
26. Operating time will vary depending on the
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heater setting and the supply cylinder size.
3 to 6 hours on a 1 lb. (0.45 kg) cylinder. 48
to 110 hours on a 20 lb. (9 kg) cylinder (based
on HI and LO settings).
27. Moving heater when lit or bumping heater
while setting it down may cause tip over
switch to shut off heater. If this happens relight
heater.
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.
National Fire Protection Association, Inc.
*.
1430 Broadway
New York, NY 10018
Batterymarch Park
Quincy, MA 02269
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113997-01B
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PRODUCT
IDENTIFICATION
Handle
Control
Knob
Grill
Guard
Burner
Fuel Cylinder
(not included)
Figure 1 - Portable Propane/LP 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 return to dealer
where you bought heater.
PRODUCT FEATURES
SAFETY PILOT
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.
PROPANE/LP SUPPLY
Propane/LP gas and propane/LP tank(s) are to be
furnished by the user. The propane/LP cylinder
to be used must be constructed and marked in
accordance with the specifications for the propane/LP gas cylinders of the U.S. Department of
Transportation (DOT).
Use this heater only with a propane/LP vapor
withdrawal supply system. See Chapter 5 of the
Standard for Storage and Handling of Liquefied
Petroleum Gas, ANSI/NFPA 58 and/or CAN/CGA
B149.2. Your local library or fire department will
have this booklet.
The amount of propane/LP gas ready for use from
propane/LP tanks varies. Two factors decide this
amount:
1. The amount of propane/LP gas in tank(s)
2. The temperature of tank(s)
CHECK GAS TYPE
Use only propane/LP gas. If your gas supply is
not propane/LP, do not use heater. Call dealer
where you bought heater for proper type heater
or appropriate fuel supply.
WARNING: This appliance is
equipped for propane/LP gas. Field
conversion is not permitted.
LOCATING HEATER
WARNING: Maintain the minimum clearances shown in Figure
2, page 6. If you can, provide
greater clearances from floor,
ceiling, and joining wall.
WARNING: Never use the
heater
• in a bathroom
where curtains, furniture, cloth-
•
ing, or other flammable objects
are less than 36" (92 cm) from
the front, top, or sides of the
heater
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
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INSTALLATION
5113997-01B
INSTALLATION
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PIL
OT
OF
F
LO
HI
Continued
CAUTION: If you use the
heater in a home garage
•
heater pilot and burner must be
at least 18" (45 cm) above floor
• locate heater where moving
vehicle will not hit it
30" (76.2 cm)
6"
(15.2 cm)
24"
(61 cm)
3" (7.6 cm) Minimum To Top
Surface Of Carpeting, Tile Or
Other Combustible Material
Figure 2 - Minimum Clearances to
Combustible Material
6"
(15.2 cm)
LIGHTING AND OPERATING
INSTRUCTIONS
WARNING: Always inspect
propane cylinder and heater propane connections for damage,
dirt, and debris before attaching
propane cylinder. Do not use if
head of cylinder is damaged,
punctured or deteriorated.
WARNING: Always attach
or detach cylinder outdoors
away from flames, other ignition
sources, and only when heater
is cool to touch. Never smoke
when attaching or removing
propane/LP cylinder or making
remote connections!
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DANGER: NEVER bring a
refillable propane cylinder indoors. A fire or explosion can
occur causing property damage,
serious injury or death!
Use only propane/LP gas cylinders marked in accordance
with the U.S. Department of
Transportation (DOT).
Heater and attached cylinder
must be in an upright position
during operation.
FOR USE WITH DISPOSABLE 1 LB.
PROPANE CYLINDERS
Use only 16.4 oz. (1 lb.) disposable cylinders that mate with No.
600 valve connection.
To Start Heater
1. Make sure four-position control knob is in
OFF position (see Figure 3).
2. Screw 1 lb. (0.45 kg) disposable propane/LP
gas supply cylinder clockwise (from bottom)
into portable heater until hand-tight.
3. Check cylinder connection for leaks with
soapy water at the threaded connection under
the domed plastic cover where the cylinder
screws into the regulator. See warning on
plastic cover.
4. Depress and turn control knob counterclock
wise to PILOT position and hold for 30-60
seconds.
5. Depress red spark ignition button to light pilot
flame (repeat until pilot lights) and continue to
hold control knob down and at PILOT position
for 30-60 seconds to enable Pilot Light Safety
System.
Pilot
Position
Figure 3 - Control Knob Positions
113997-01B
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LIGHTING AND OPERATING
INSTRUCTIONS
Continued
6. Fully turn control knob to HI position to light
burner tile. Leave on HI position until burner
tile turns bright orange.
7. After burner tile has turned bright orange,
adjust heat output by turning control knob to
desired position (LO or HI setting),
Do not operate heater unless
control knob is secured in a position marked HI, LO or PILOT.
To Shut Off Heater
Slightly push down and turn control knob clockwise to OFF position.
CAUTION: After turning
heater off, wire guard will remain
hot. Allow to thoroughly cool
before storing.
Do not operate, store or remove
cylinder near flammable items or
ignition sources.
WARNING: Propane/LP gas
cylinders must be disconnected
from heater when not in use!
FOR USE WITH HOSE CONNECTED
TO A REMOTE CYLINDER,
MAXIMUM SIZE 20 LBS (9 KG)
This Heater may be used in a recreational enclosure or temporary construction work enclosure
with a remote refillable propane/LP cylinder
ONLY when the cylinder is located outdoors and
the heater is used with DESA Heating Products
hose part number 100427-01.
Inspect the hose before each
use of the heater. If there is
excessive abrasion or wear, or
the hose is cut, replace prior to
using the heater with the DESA
Heating Products hose number
shown above.
The propane cylinder must in
clude a listed overfilling protection device as well as a collar to
protect the cylinder valve.
1. Make sure four-position control knob is in
OFF position (see Figure 3, page 6).
2. Screw hose connector into regulator on heater
and screw connector on other end of hose into
propane/LP gas supply cylinder valve. Tighten
all hose connections.
3. Check all hose connections for leaks with
soapy water at the threaded connection un
der the domed plastic cover where the hose
connector screws into the regulator and at
propane/LP gas supply cylinder. See warning
on plastic cover.
4. Open valve at propane/LP gas supply cylinder.
5. Depress and turn control knob counterclock
wise to PILOT position and hold for 1 to 2
minutes. This may take longer to purge air
from the supply hose depending on the length
of the hose being used.
6. Depress red spark ignition button to light pilot
flame (repeat until pilot lights) and continue to
hold control knob down and at PILOT position
for 30-60 seconds to enable Pilot Light Safety
System.
7. Fully turn control knob to HI position to light
burner tile. Leave on HI position until burner
tile turns bright orange.
8. After burner tile has turned bright orange,
adjust heat output by turning control knob to
desired position (LO or HI setting).
Do not operate heater unless
control knob is secured in a posi
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tion marked HI, LO or PILOT.
To Shut Off Heater
1. Shut off propane/LP gas at supply tank, al
low heater to use up propane/LP in supply
line until heater shuts off, then slightly push
down and turn control knob clockwise to OFF
position.
CAUTION: After turning
heater off, wire guard will remain
hot. Allow to thoroughly cool
before storing.
2.
Turn off gas at propane/LP gas supply cylinder.
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7113997-01B
LIGHTING AND OPERATING
INSTRUCTIONS
Continued
IMPORTANT: When not in use, the gas must be
turned off at the propane/LP gas supply cylinder.
When the propane/LP gas supply cylinder is not
disconnected from the heater, the heater and the
cylinder must be stored outdoors, in a well ven
tilated space, out of reach of children, and must
not be stored in a building, garage or any other
enclosed area.
IMPORTANT: Indoor storage of the heater is
permissible only if the cylinder is disconnected
and removed from the heater. Cylinders must be
stored outdoors out of the reach of children and
must not be stored in a building, garage or any
other enclosed area.
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.
CAUTION: You must check
and keep burner/venturi tubes
clean of insect and insect nest. A
clogged tube can lead to a fire.
WARNING: Failure to keep
the primary air opening(s) of
the burner(s) clean may result in
sooting and property damage.
BURNER PILOT AIR INLET
The primary air inlet holes allow the proper
amount of air to mix with the gas. This provides a
clean burning flame. Keep these holes clear of dust,
dirt, and lint. Clean these air inlet holes prior to
each heating season. Blocked air holes will create
soot. We recommend that you clean the unit every
three months during operation and have heater
inspected yearly by a qualified service person.
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 com
pressed 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.
Always keep the heater area clear and free from
combustible materials, gasoline and other flam
mable vapors and liquids.
Keep the vent areas (slots in the bottom and the top
at the front of heater) clear at all times.
Visually inspect the pilot flame and burner periodi
cally during use. The pilot flame should be blue
in color (not yellow) and will extend beyond the
thermocouple. The flame will surround the thermocouple just below the tip. See Figure 4. A slight
yellow flame may occur where the pilot flame
and main burner flame meet. The burner should
be bright orange (with a slight blue color around
the border, a red-orange haze that is visible on the
ceramic tile is acceptable) and without a noticeable
flame. A blue flame that rolls out at the top of the
ceramic tile indicates an accumulation of dust, lint
or spider webs inside the casing assembly and main
burner assembly. If the pilot is yellow or the burner
has a noticeable flame, cleaning may be required.
Use the following procedure to inspect the casing
assembly and main burner assembly.
Thermocouple
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ODS/PILOT AND BURNER
Use a vacuum cleaner, pressurized air, or small,
soft bristled brush to clean.
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Air Inlet
Hole
Figure 4 - Pilot
113997-01B
CLEANING AND
MAINTENANCE
Continued
It is necessary to periodically check the burner
orifice and burner venturi tube to make sure they
are clear of insects, nests or spider webs that may
accumulate over time. A clogged tube can lead
to a fire.
1. Allow heater to thoroughly cool before per
forming any maintenance.
2. Remove disposable 1 lb. (0.45 kg) cylinder
from heater or turn OFF gas supply at remote
cylinder valve, and disconnect hose from
heater.
3. Remove wire guard from front of heater by
gently bending to remove from holes in front
cover.
4. Remove (1) burner assembly retaining screw
from bottom of the heater.
5. Pull burner assembly from front of the
heater.
6. Inspect interior of casing assembly for ac
cumulation of dust, lint or spider webs. If
necessary, clean interior of casing assembly
with a vacuum cleaner or apply air pressure.
Do not damage any components within casing
assembly when you are cleaning.
7. Inspect and clean main burner ori fice
(mounted to pilot bracket with jam nut) by
using a vacuum or apply air pressure at orifice
opening.
8. Inspect and clean pilot (mounted to bracket) by
using a vacuum or apply air pressure through
the air holes in the pilot (see Figure 4, page 8).
9. Apply air pressure into ceramic tile of burner
assembly and the venturi tube (with cone on
end) to remove dust, lint or spider webs.
10. Make sure the burner tile assembly is com
pletely seated against the reflector.
11. Carefully slide burner assembly back into cas
ing assembly making sure to center reflector
flange with the casing opening and hold in
place while installing burner assembly screw
in the bottom of the heater.
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12. Install wire guard by gently bending and in
serting into the four holes in the front cover.
CABINET
Air Passageways
Use a vacuum cleaner or pressurized air to
clean.
Exterior
Use a soft cloth dampened with a mild soap and
water mixture. Wipe the cabinet to remove dust.
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WARNING: Never use needles, wires, or similar cylindrical
objects to clean the pilot to avoid
damaging the calibrated ruby
that controls the gas flow.
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9113997-01B
TROUBLESHOOTING
WARNING: Turn off 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
When ignitor button is pressed,
there is no spark at ODS/pilot
POSSIBLE CAUSE
1. Ignitor electrode positioned
wrong
2. Ignitor electrode broken
3. Ignitor electrode not con
nected to ignitor cable
4. Ignitor cable pinched or wet
5. Piezo ignitor nut is loose
6. Broken ignitor cable
7. Bad piezo ignitor
REMEDY
1. Replace pilot assembly
2. Replace pilot assembly
3. Reconnect ignitor cable
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4. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
5. Tighten nut holding piezo ig
nitor to heater cabinet. Nut is
located inside heater cabinet
at top
6. Replace ignitor cable
7. Replace piezo ignitor
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When ignitor button is pressed,
there is spark at ODS/pilot but
no ignition
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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. ODS/pilot is clogged
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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 op
eration until air is removed
5. Clean ODS/pilot (see
ing and Maintenance, page
8) or replace ODS/pilot as
sembly
Clean-
113997-01B
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