Desa RLP50VA, REM50PVA, BLP50VA User Manual

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PROPANE
CONSTRUCTION
HEATER
OWNER’S MANUAL
Models: RLP50VA, BLP50VA, and REM50PVA
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.
50,000 BTU/HR
PROPANE CONSTRUCTION HEATER
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 for use as a construction heater in accordance with ANSI Z83.7/CGA
2.14. Other standards govern the use of fuel gases and heating products for specific uses. Your local authority can advise you about these. The primary purpose of construction heaters is to provide temporary heating of buildings under construction, alteration or re­pair. 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! Check for proper ventilation and have heater serviced.
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 may 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.
• 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 Liquefied 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 gases.
• 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, or Cana­dian Electrical Code, part 1.
• Electrical grounding instructions — This appliance is equipped with a three-prong (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.
• Use only propane gas set up for vapor withdrawal.
• Provide adequate ventilation. Before us­ing heater, provide at least a 1.5-square­foot opening of fresh, outside air.
• Approved by the New York City Fire Department under Certificate of Ap­proval #4953. To be used only at con­struction site with applicable New York City codes, regulations, rules, directives, permits, etc.
• This product has been approved for use in the Commonwealth of Massachusetts.
• This heater produces carbon monoxide, which is listed by the State of California as a reproductive toxin under Proposition 65.
• For indoor use only. Do not use heater outdoors.
• Do not use heater in occupied dwellings or in living or sleeping quarters.
• Do not use heater below ground level. Propane gas is heavier than air. If a leak occurs, propane gas may sink to the low­est possible level.
• 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.
• Minimum heater clearances from com­bustibles:
Outlet: 6 Ft. Sides: 2 Ft. Top: 6 Ft. Rear: 2 Ft.
• Keep heater at least six feet from pro­pane tank(s). Do not point heater at pro­pane tank(s) within 20 feet.
• Keep propane tank(s) below 100° F.
• Check heater for damage before each use. Do not use a damaged heater.
• Check hose before each use of heater. If highly worn or cut, replace before using heater.
• Locate heater on stable and level surface if heater is hot or operating.
• Not intended for use on finished floors.
• Never block air inlet (rear) or air outlet (front) of heater.
• Keep heater away from strong drafts, water spray, rain, or dripping water.
• Do not leave heater unattended.
• Keep children and animals away from heater.
• Never move, handle, or service a hot, operating, or plugged-in heater. Severe burns may result. Wait 20 minutes after turning heater off.
• T o prevent injury, wear gloves when han­dling heater.
• Never attach duct work to heater.
• Do not alter heater. Keep heater in its original state.
• Do not use heater if altered.
• Turn off propane supply and unplug heater when not in use.
• 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.
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OWNER’S MANUAL
PRODUCT IDENTIFICATION
Hot Air Outlet (Front)
Heater Base
Piezo Ignitor Button
Automatic Control Valve Knob
Hose / Regulator Assembly
Figure 1 - 50,000 BTU/Hr Model
Shell
Fan Guard
Valve Inlet
Handle
Motor
Power Cord
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.
PROPANE SUPPLY
Propane gas and propane tank(s) are to be furnished by the user.
Use this heater only with a propane 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 gas ready for use
from propane tanks varies. Two factors de­cide this amount:
1. The amount of propane gas in tank(s)
2. The temperature of tank(s)
This heater is designed to operate with a minimum 20-pound propane tank. You may need two or more tanks or one larger tank in colder weather. Use a 100-pound tank for longer operation or in very cold weather. Less gas is vaporized at lower temperatures. Your local propane gas dealer will help you select the proper supply system. The mini­mum surrounding air temperature rating for each heater is -20°F (-29°C).
Average Number Of
Temperature (°F) Tanks At Tank Location (100-pound)
40° 1 32° 1 20° 1 10° 1
0° 1
-10° 2
-20 ° 2
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50,000 BTU/HR
PROPANE CONSTRUCTION HEATER
THEORY OF OPERATION
THE FUEL SYSTEM
The hose/regulator assembly attaches to the propane gas supply. This provides fuel to the heater.
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 piezo ignitor lights the burner.
THE AUTOMATIC CONTROL SYSTEM
This system causes the heater to shut down if the flame goes out.
Combustion Chamber
Clean Heated Air Out (Front)
Air For Combustion Air For Heating
Figure 2 - Cross Section Operational View
Fan
Motor
Cool Air In (Back)
Hose/ Regulator Assembly
ASSEMBLY
1. Remove screw from top of fan guard. Discard screw.
Remove Screw
Figure 3 - Removing Screw from Top of Fan Guard
2. Insert nut clip (provided with handle) with flat side facing up through slot in top of shell. Align holes in nut clip with screw hole behind slot in top of shell. (see Figure 4).
Flat Side Facing Up
Slot
Figure 4 - Installing Nut Clip
3. Place handle over hole and clip. Insert two screws (provided with handle) through handle and tighten into shell. Make sure rear screw goes through shell and into fan guard. Tighten screws firmly.
Nut Clip
Shell
Screws
Handle
Nut Clip
Rear of Heater
Figure 5 - Attaching Handle
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105331
OWNER’S MANUAL
INSTALLATION
WARNING: Review and un-
derstand the warnings in the
Safety Information
2. They are needed to safely op­erate this heater. Follow all local codes when using this heater.
WARNING: Test all gas pip­ing and connections for leaks after installation or servicing. Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.
1. Provide propane supply system (see Propane Supply, page 3).
2. Connect fuel gas fitting on hose/regu­lator assembly to propane tank(s). Turn fuel gas fitting counterclockwise into threads on tank. Tighten firmly using a wrench. lator so that hose leaving the regulator is in a horizontal position (see Figure
6). This places the regulator vent in the proper position to protect it from the weather.
3. Connect hose to valve inlet. Tighten firmly using a wrench. You must use the regulator supplied with heater.
4. Open propane supply valve on propane tank(s) slowly. slowly, excess-flow check valve on pro­pane tank may stop gas flow. If this happens, close propane supply valve and open again slowly.
5. Check all connections for leaks. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak that must be corrected.
6. Close propane supply valve.
IMPORT ANT:
section, page
Position regu-
Note:
If not opened
WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak that must be cor­rected. Correct all leaks at once.
Regulator Propane Supply Valve
Propane Tank
Figure 6 - Regulator Position
Knob
Valve Inlet
Hose
Figure 7 - Hose and Inlet Connector
Hose
Fuel Gas Fitting
VENTILATION
WARNING: Provide at least a
1.5 square foot opening of fresh, outside air while running heater. If proper fresh, outside air venti­lation is not provided, carbon monoxide poisoning can occur. Provide proper fresh, outside air ventilation before running heater.
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