Desa Tech RLP45, RLP155 Owner's Manual
PROPANE
CONSTRUCTION
HEATERS
OWNER’S MANUAL
45 & 80 LP SIDE PV 0016
150 LP SIDE PV 017
Heater Sizes: 80,000 150,000 BTU/Hr
IMPORTANT
Read and understand this manual before assembling, starting, or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference.
!
GENERAL HAZARD WARNING:
FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER, CAN RESULT IN DEATH,
SERIOUS BODILY INJURY AND PROPERTY LOSS OR DAMAGE
FROM HAZARDS OF FIRE, EXPLOSION, BURN, ASPHYXIATION,
CARBON MONOXIDE POISONING, AND/OR ELECTRICAL SHOCK.
ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE INSTRUCTIONS SHOULD USE OR SERVICE THIS HEATER.
IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN
INSTRUCTIONS MANUAL, LABELS, ETC. CONTACT THE MANUFACTURER.
®
CONTENTS
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SECTION PAGE
Safety Information.........................................................................2
Product Identification .................................................................... 4
Unpacking......................................................................................5
Theory of Operation ...................................................................... 5
Propane Supply..............................................................................6
Installation .....................................................................................6
Ventilation .....................................................................................7
Operation .......................................................................................8
Storage ........................................................................................... 8
Maintenance ..................................................................................9
Preventative Maintenance Schedule..............................................9
Service Procedures ........................................................................10
Specifications ................................................................................12
Wiring Diagrams ........................................................................... 13
Accessories ....................................................................................15
Technical Service .......................................................................... 15
Service Publications ......................................................................15
Replacement Parts ......................................................................... 15
Warranty and Repair Service.........................................................Back Cover
SAFETY
INFORMATION
WARNINGS
!
WARNING: FIRE, BURN, INHALATION, AND EXPLOSION
HAZARD. KEEP SOLID COMBUSTIBLES, SUCH AS BUILDING
MATERIALS, PAPER OR CARDBOARD, A SAFE DISTANCE
AWAY FROM THE HEATER AS RECOMMENDED BY THE INSTRUCTIONS. NEVER USE THE HEATER IN SPACES WHICH
DO OR MAY CONTAIN VOLATILE OR AIRBORNE COMBUSTIBLES, OR PRODUCTS SUCH AS GASOLINE, SOLVENTS,
PAINT THINNER, DUST PARTICLES OR UNKNOWN CHEMICALS.
!
WARNING
NOT FOR HOME OR RECREATIONAL VEHICLE USE.
The heater is designed and approved for use as a construction heater under ANSI
Z83.7. The primary purpose of construction heaters is to provide temporary heating
of buildings under construction, alteration or repair, and to provide temporary
emergency heat. Properly used, the heater provides safe economical heating.
Products of combustion are vented into the area being heated.
We cannot foresee every use which may be made of our heaters. Check with your
local fire safety authority if you have questions about heater use.
Other standards govern the use of fuel gases and heat producing products for specific
uses. Your local authorities can advise you about these.
Carbon Monoxide Poisoning: Some people are more affected by carbon
monoxide than others. Early signs of carbon monoxide poisoning resemble the flu,
with headaches, dizziness, and/or nausea. If you have these signs, the heater may
not be working properly. Get fresh air at once! Have heater serviced.
2
Safety Information continues on next page
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SAFETY
!
WARNINGS
INFORMATION
Continued
099162
Propane Gas: Propane gas is odorless. An odor-making agent is added to
propane gas. The odor helps you detect a propane gas leak. However, the odor added
to propane gas can fade. Propane 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.
• For indoor use only. Provide adequate ventilation.
• Use only in well vented areas. Before using heater, provide at least a threesquare-foot opening of fresh, outside air for each 100,000 BTU/Hr of rating.
This heater produces carbon monoxide, which is listed by the State of California as a reproductive toxin under Proposition 65.
• Do not use heater outdoors or in occupied dwellings.
• Do not use heater in living or sleeping quarters.
• Keep appliance area clear and free from combustible materials, gasoline, paint
thinner, and other flammable vapors and liquids. Do not use heater in areas
with high dust content.
• Keep heater away from strong drafts, water spray, rain, or dripping water.
• Install and use heater with care. Follow all local ordinances and codes. In the
absence of local ordinances and codes, refer to ANSI/NFPA 58. This instructs
on the safe storage and handling of propane gases.
• Check heater for damage before each use. Do not use a damaged heater.
• Use only propane gas set up for vapor withdrawal.
• Keep propane tank(s) below 100° F.
• Do not use heater below ground level. Propane gas is heavier than air. If a leak
occurs, propane gas will sink to the lowest possible level.
• Use only the electrical voltage and frequency specified on model plate.
• The electrical connections and grounding of the heater shall follow the National Electric Code, ANSI/NFPA 70.
• Electrical grounding instructions — This appliance is equipped with a threeprong (grounding) plug for your protection against shock hazard and should be
plugged directly into a properly grounded three-prong receptacle.
• Use only a three-prong, grounded extension cord.
• Use only the hose and factory preset regulator provided with the heater.
• Inspect hose before each use of heater. If highly worn or cut, replace before
using heater. Use the replacement hose assembly specified in this manual.
• Keep heater at least six feet from propane tank(s). Do not point heater at
propane tank(s) within 20 feet.
• Minimum heater clearances from combustibles:
Outlet: 8 Ft. Sides: 2 Ft. Top: 6 Ft. Rear: 2 Ft.
• Locate heater on stable and level surface if heater is hot or running.
• Keep children and animals away from heater.
• Turn off propane supply and unplug heater when not in use.
• When used with thermostat, heater may start anytime.
• Never block air inlet (rear) or air outlet (front) of heater.
• Never move, handle, or service a hot, operating, or plugged-in heater.
• Do not alter heater. Keep heater in its original state.
• Do not use heater if altered.
• Never attach duct work to front or rear of heater.
• Use only original replacement parts. This heater must use design-specific
parts. Do not substitute or use generic parts. Improper replacement parts could
cause serious or fatal injuries.
3
PRODUCT
Generic LP 155
LP-PFA/PV 008B
IDENTIFICATION
Hot Air Outlet
(Front)
Upper Shell
Handle
Lower Shell
Hot Air
Outlet
(Front)
On/Off Switch
Power Cord
Generic LP 45 & 80
Figure 1 - 80,000 BTU/Hr Model
Upper Shell
Handle
LP-PFA/PV 008A
Fan Guard
Inlet
Connector
Hose /Regulator
Assembly
4
Lower Shell
Fan Guard
Power Cord
On/Off Switch
Inlet
Connector
Hose /Regulator
Assembly
Figure 2 - 150,000 BTU/Hr Model
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UNPACKING
1. Remove all packing items applied to heater for shipment. Keep plastic cover
caps (attached to inlet connector and hose/regulator assembly) for storage.
2. Remove all items from carton.
3. Check all items for shipping damage. If heater is damaged, promptly inform
dealer where you bought heater.
THEORY OF
OPERATION
Clean
Heated
Air Out
(Front)
The Fuel System: The hose/regulator assembly attaches to the propane gas
supply. The propane gas moves through the solenoid valve and out the nozzle.
The Air System: The motor turns the fan. The fan pushes air into and around
the combustion chamber. This air is heated and provides a stream of clean, hot air.
The Ignition System: The direct spark ignitor (DSI) sends voltage to the spark
plug/ignitor. The spark plug/ignitor ignites the fuel and air mixture.
The Safety Control System: This system causes the heater to shut down if the
flame goes out.
Combustion
Chamber
Nozzle
Fan
Motor
Cool Air In
(Back)
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Spark Plug/Ignitor
DSI
Air For Combustion
And Heating
Figure 3 - Cross Section Operational View (80,000 BTU/Hr Model Shown)
Note:
Some parts are located differently on some models.
45/80 LP SIDE
Solenoid
Valve
On/Off Switch
Fuel
LP-PFA/OV 001A
Power
Cord
Hose/Regulator
Assembly
5
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