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103868

PROPANE CONSTRUCTION HEATER

50,000 BTU/HR

SAFETY
INFORMATION

 WARNING: FIRE, BURN, IN-

HALATION, AND EXPLOSION
HAZARD. KEEP SOLID COMBUS-
TIBLES, SUCH AS BUILDING MA-
TERIALS, PAPER OR CARD-
BOARD, A SAFE DISTANCE
AWAY FROM THE HEATER AS
RECOMMENDED BY THE IN-
STRUCTIONS. NEVER USE THE
HEATER IN SPACES WHICH DO
OR MAY CONTAIN VOLATILE OR
AIRBORNE COMBUSTIBLES, OR
PRODUCTS SUCH AS GASO-
LINE, SOLVENTS, PAINT THIN-
NER, DUST PARTICLES OR UN-
KNOWN CHEMICALS.

 WARNING: NOT FOR HOME

OR RECREATIONAL VEHICLE
USE.

The heater is designed for use as a construc-
tion heater in accordance with ANSI Z83.7/
CGA 2.14. Other standards govern the use
of fuel gases and heating products for spe-
cific uses. Your local authority can advise
you about these. The primary purpose of
construction heaters is to provide temporary
heating of buildings under construction, al-
teration 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 AU-
THORITY 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.

WARNING ICON

G 001

 WARNINGS

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 In-
stallation Code, CAN/CGA B149.2.
 This
instructs on the safe storage and handling
of propane gases.

• Use only the electrical voltage and fre-

quency specified on model plate.

• The electrical connections and ground-

ing of the heater shall follow the National
Electric Code, ANSI/NFPA 70
, or Cana-
dian 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 exten-

sion 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 us-

ing heater, provide at least a 1.5-square-
foot opening of fresh, outside air. 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.

Carbon Monoxide Poisoning:

 Some

people are more affected by carbon monox-
ide than others. Early signs of carbon mon-
oxide poisoning resemble the flu, with head-
aches, 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.

• 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 low-
est 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 com-

bustibles:

Outlet: 6 Ft.

Sides: 2 Ft.

Top: 6 Ft.

Rear: 2 Ft.

• Keep heater at least six feet from pro-

pane tank(s). Do not point heater at pro-
pane 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.

• To prevent injury, wear gloves when han-

dling 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. Im-
proper replacement parts could cause
serious or fatal injuries.

Summary of Contents for BLP50V

Page 1: ...ATION CARBON MONOXIDE POI SONING 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 Models RLP50V BLP50V and REM50PV IMPORTANT Readandunderstandthismanualbeforeassembling starting orservicingheater Improper use of heater ...

Page 2: ...hock hazard and should be plugged directly into a properly grounded three prong receptacle Use only a three prong grounded exten sion 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 us ing heater provide at least a 1 5 square foot opening of fresh outside air This heater produces carbo...

Page 3: ...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 li braryorfiredepartmentwillhavethisbook let The amount of propane gas ready for use from propane tanks varies Two factors de cide this amount 1 The amount of propane gas in tank s 2 The temperature of tank s This heater is designed to operate wit...

Page 4: ...quidsoapandwatertoalljoints Bubbles forming show a leak Correct all leaks at once Knob THEORY OF OPERATION Combustion Chamber The Fuel System The hose regulator assembly attaches to the propane gas sup ply 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 Ig...

Page 5: ...hts keep auto matic control valve knob pushed in Release button after 30 seconds Note If main burner fails to light hose may have air in it If so keep control knob pressed and wait 20 seconds Re lease control knob and wait 20 seconds for unburned fuel to exit heater Repeat step 4 7 If main burner goes out repeat step 4 8 When main burner remains lit rotate control knob to the desired heat level WA...

Page 6: ...nitor electrode 1 High surrounding air temperature caus ing thermal limit device to shut down heater 2 Restricted air flow 3 Damaged fan 4 Excessive dust or debris in surrounding area OBSERVED FAULT Fan does not turn when heater is plugged in Heater will not ignite Heater shuts down while running WARNING Never service heater while it is plugged in connected to propane supply operating or hot Sever...

Page 7: ...hing fan guard to motor you must position power cord as shown in Figure 9 Tighten nuts firmly 8 Place fan onto motor shaft of new mo tor IMPORTANT When placing fan onto motor shaft make sure part number stamped on fan is facing motor Attach fan nut to end of motor shaft Tighten fan nut firmly 9 Place motor and fan guard into rear of heater shell Make sure power cord is properly located see Figure ...

Page 8: ...aft Figure 11 Removing Motor and Fan Guard from Heater Figure 13 Replacing Motor and Fan Guard into Heater Fan 1 Remove three screws that attach fan guard to heater shell 2 Remove motor and fan guard from heater shell see Figure 11 3 Use pliers to remove the fan nut from front of motor shaft see Figure 12 4a If replacing fan remove old fan and discard Go to step 7 below 4b If cleaning fan remove f...

Page 9: ...ll ask you to return the defective part to the factory Parts Not Under Warranty Contact authorized dealers of this product If they can t supply original replacement part s either contact your nearest Parts Central or call DESA International s Parts Department at 1 800 972 7879 for referral information When calling DESA International have ready model number of your heater the replacement part numbe...

Page 10: ... 103868 PROPANE CONSTRUCTION HEATER 50 000 BTU HR 1 2 3 2 4 6 7 9 11 21 22 23 24 25 19 20 21 5 10 27 16 12 13 14 15 Fan Nut Fan Rubber Washer Motor Motor Assembly 17 26 18 26 8 ILLUSTRATED PARTS BREAKDOWN ...

Page 11: ...n 1 13 103864 01 Motor Assembly Includes Rubber Washer and Fan Nut 1 14 099540 01 Fan Guard 1 15 097384 02 Captive Washer Nut 3 16 097968 05 Hex Screw 4 40 x 1 2 2 17 NPC 00C Hex Nut 4 40 2 18 101481 05 Thermal Switch Kit 1 19 097776 01 Universal Bushing 1 20 099542 01 Wire Clip 1 21 103919 01 Thermocouple Kit 1 22 103921 01 Valve Orifice Assembly 1 23 102445 01 Piezo Ignitor 1 24 078978 03 Sleeve...

Page 12: ...e is the responsibility of the owner THIS EXPRESS WARRANTY IS GIVEN IN LIEU OF ANY OTHER WARRANTY EITHER EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUR POSE DESA International assumes no responsibility for indirect incidental or consequential damages Some states do not allow the exclusion or limitation of incidental or consequential damages or limitat...

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