Desa RCLP50V User Manual

CANADIAN PROPANE

CONSTRUCTION

HEATER

OWNER’S MANUAL

VARIABLE

30,000 - 50,000 BTU/HR

Model: RCLP50V

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.

PROPANE CONSTRUCTION HEATER

SAFETY INFORMATION

WARNINGS

WARNING ICON G 001

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 0.14 m2 (1.5 ft2) 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.

• 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: 1.8 m (6 ft) Sides: 60 cm (2 ft) Top: 1.8 m (6 ft) Rear: 60 cm (2 ft)

• Keep heater at least 1.8 m (6 ft) from propane tank(s). Do not point heater at propane tank(s) within 6 m (20 ft).

• Keep propane tank(s) below 38° C (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 9 kg (20 lb) propane tank. You may need two or more tanks or one larger tank in colder weather. Use a 45 kg (100 lb) 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 -29°C (-20°F).

Average Number Of

Temperature °C (°F) Tanks

At Tank Location (45 kg/100 lb)

4.4° (40°)1 0° (32°)1

-6.7° (20°)1

-12° (10°)1

-18° (0°)1

-23° (-10°)2

-29° (-20°)2

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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.

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.

IMPORTANT:

hose leaving the regulator is in a horizontal position (see Figure 3). This places the regulator vent in the proper position to protect it from the weather.

section, page

Position regulator so that

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.

Note:

If not opened 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.

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

Hose

Fuel Gas Fitting

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

Figure 3 - Regulator Position

Knob

Valve Inlet

Figure 4 - Hose and Inlet Connector

Hose

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OWNER’S MANUAL

VENTILATION

WARNING: Provide at least a

0.14 m2 (1.5 ft2) 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.

OPERATION

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.

To Start Heater

1. Follow all installation, ventilation, and safety information.

2. Locate heater on stable and level surface. Make sure strong drafts do not blow into front or rear of heater.

3. Plug power cord of heater into a threeprong, grounded extension cord. Extension cord must be at least 2 m (6 ft). Extension cord must be UL/CSA listed.

Extension Cord Wire Size Requirements

Up to 15 m (50 ft), use 18 AWG rated cord. 16 to 30 m (51 to 100 ft) long, use 16 AWG rated cord. 31 to 60 m (101 to 200 ft) long, use 14 AWG rated cord.

4. Plug extension cord into a 120 volt/60 hertz, 3-hole, grounded outlet. Motor will start. Fan will turn, forcing air out front of heater.

5. 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.

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Note:

If not opened

WARNING: Be sure motor and fan are running before pushing in automatic control valve button. Flames could flash outside heater if motor and fan are not running.

6. Turn control knob to the low position and push in (see Figure 5). Hold knob in and push piezo ignitor button. You may need to push piezo ignitor button 3-8 times until the main burner lights. When main burner lights, keep automatic 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. Release 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.

OFF

START/ LOW

MED

HIGH

Figure 5 - Control Knob Positions

Piezo Ignitor Button

Automatic Control Valve Knob

Figure 6 - Automatic Control Valve Button and Piezo Ignitor Button

To Stop Heater

1. Tightly close propane supply valve on propane tank(s). Allow heater to burn remaining fuel in hose.

2. Shut off main burner valve. Do this by turning control knob to the OFF position until it stops.

To Restart Heater

1. W ait five minutes after stopping heater.

2. Repeat steps under To Start Heater.

STORAGE

CAUTION: Disconnect heater

from propane supply tank(s).

1. Store propane tank(s) in safe manner. See Chapter 5 of Standard for Storag e

and Handling of Liqueﬁed Petroleum Gases, ANSI/NFPA 58. Follow all lo-

cal codes. Always store propane tanks outdoors.

2. Place plastic cover caps over brass ﬁttings on inlet connector and hose/ regulator assembly.

3. Store in dry, clean, and safe place. Do not store hose/regulator assembly inside heater combustion chamber.

4. When taking heater out of storage, always check inside of heater. Insects and small animals may place foreign objects in heater. Remove motor and other internal parts if needed to remove foreign objects (see Service Procedures , page 7).

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PROPANE CONSTRUCTION HEATER

MAINTENANCE

WARNINGS

• Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.

• Keep heater clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

• Do not block the flow of combustion or ventilation air.

TROUBLESHOOTING

OBSERVED FAULT

Fan does not turn when heater is plugged in.

1. Keep heater clean. Clean heater annually or as needed to remove dust and debris. If heater is dirty or dusty, clean heater with a damp cloth. Use household cleaners on difficult spots.

2. Inspect heater before each use. Check connections for leaks. Apply mixture of liquid soap and water to connections. Bubbles forming show a leak. Correct all leaks at once.

3. Inspect hose/regulator assembly before each use. If hose is highly worn or cut, replace.

4. Have heater inspected yearly by a qualified service agency.

WARNING: Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.

POSSIBLE CAUSE

1. No electrical power to heater

2. Fan hitting inside of heater shell

3. Fan blades bent

4. Defective motor

5. Keep inside of heater free from combustible and foreign objects. Remove motor and other internal parts if needed to clean inside of heater (see Service Procedures, page 7).

6. Clean fan blades each season or as needed (see Fan, page 8).

REMEDY

1. Check voltage to electrical outlet. If volt-

age is good, check heater power cord for breaks.

2. Adjust motor/fan guard to keep fan from

hitting inside of heater shell. Bend fan guard if necessary.

3. Replace fan. See Fan, page 8.

4. Replace motor . See Motor, page 7.

Heater will not ignite.

Heater shuts down while running.

1. User did not follow installation or operation instructions properly

2. No spark at ignitor . T o test for spark, follow step 9 under Ignitor, page 8. If you see spark at ignitor, have heater serviced by qualified service person. If no spark seen: A) Loose or disconnected ignitor wire B) Wrong spark gap C) Piezo ignitor loose D) Bad ignitor electrode

1. High surrounding air temperature causing thermal limit device to shut down heater.

2. Restricted air flow

3. Damaged fan

4. Excessive dust or debris in surrounding area

WARNING: Use only in areas free of high dust content.

1. Repeat installation and operation instructions. See Installation, page 4 and Operation, page 5.

2. A) Check ignitor wire. Tighten or reattach loose ignitor wire. See Figure 14, page 8 for ignitor wire location. B) Set gap between ignitor electrode and target plate to 4.3 mm (.17 in). C) Tighten nut holding piezo ignitor to base of heater. D) Replace ignitor electrode. See Igni- tor, page 8.

1. This can happen when running heater in temperatures above 29° C (85° F). Run heater in cooler temperatures.

2. Check heater inlet and outlet. Remove any obstructions.

3. Replace fan. See Fan, page 8.

4. Clean heater. See Maintenance, above.

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OWNER’S MANUAL

SERVICE PROCEDURES

WARNING: Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.

ELECTRICAL SYSTEM

The entire electrical system for this heater is contained within the motor. If any part of the electrical system is damaged, you must replace motor.

MOTOR

1. Remove three screws that attach fan guard to heater shell.

2. Remove motor and fan guard from heater shell (see Figure 7).

3. Use pliers to remove the fan nut from front of motor shaft (see Figure 8).

4. Remove fan. Be careful not to damage the fan blade pitch.

5. Remove three nuts that attach fan guard to motor using nut-driver. Remove fan guard from motor (see Figure 9).

6. Discard old motor.

7. Attach fan guard to new motor with three nuts. When attaching 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 motor.

IMPORTANT:

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 10).

10. Insert three screws through heater shell and into fan guard. Tighten screws ﬁrmly.

When placing fan onto

Figure 7 - Removing Motor and Fan Guard from Heater

Fan Nut

Figure 8- Removing Fan Nut from Motor Shaft

Figure 9 - Removing or Attaching Fan Guard from Motor

Figure 10 - Replacing Motor and Fan Guard into Heater

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Continued

PROPANE CONSTRUCTION HEATER

SERVICE PROCEDURES

Continued

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 fan. Be careful

not to damage the fan blade pitch.

5. Clean fan using soft cloth moistened with kerosene or solvent.

6. Dry fan thoroughly.

7. Place fan onto motor shaft.

IMPORTANT:

motor shaft, make sure part number stamped on fan is facing motor.

8. 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 13).

10. Insert three screws through heater shell and into fan guard. Tighten screws ﬁrmly.

Figure 11 - Removing Motor and Fan Guard from Heater

When placing fan onto

Fan Nut

Figure 12 - Removing Fan Nut from Motor Shaft

Figure 13 - Replacing Motor and Fan Guard into Heater

IGNITOR

1. Remove motor and fan guard from heater (see Motor, page 7, steps 1 through 5).

2. Remove black ignitor wire from piezo ignitor. Access ignitor wire through underside of heater base (see Figure 14). Push wire up through bushing in heater shell.

3. Remove ignitor mounting screw from rear head using nut-driver or standard screwdriver (see Figure 15).

4. Remove ignitor from rear head.

5. Install new ignitor. Attach ignitor to rear head with ignitor mounting screw.

6. Run ignitor wire from new ignitor through bushing in heater shell. Attach ignitor wire to piezo ignitor.

7. Set gap between ignitor electrode and target plate to 4.3 mm (.17 in) (see Figure 16).

WARNING: Make sure heater is disconnected from propane supply. Heater could ignite causing severe burns.

8. Test for spark. Push piezo ignitor button and watch for spark between ignitor electrode and target plate.

9. Place motor and fan guard into rear of heater shell (see Motor, page 7, steps 9 and 10).

Piezo Ignitor

Ignitor Wire

Underside of Heater Base

Figure 14 - Removing Ignitor Wire from Piezo Ignitor

Rear Head

Ignitor Ignitor Mounting Screw

Figure 15 - Removing Ignitor Mounting Screw and Ignitor

Ignitor Electrode

Figure 16 - Clearance between Ignitor Electrode and Target Plate

Bushing

Target Plate

Gap Area

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OWNER’S MANUAL

SPECIFICATIONS

Output Rating (BTU/Hr)

High 49,500

Low 30,000 Fuel Propane Vapor Only Fuel Consumption

Liters (Gallons)/Hour 2.0 (.54) maximum - 1.2 (.33) minimum

Kilogram (Pounds)/Hour 8.7 (2.3) maximum - 5.3 (1.4) minimum Supply Pressure To Regulator

Minimum (for input adjustment) 69 kPa (10 psi) Maximum 1380 kPa (200 psi) Regulator Outlet Pressure

High 46 cm (18" WC) Manifold Pressure

High 35 cm (13.7" WC)

Low 43 cm (17" WC) Hot Air Output (CFM Approx) 7.8 m3 (275) Motor 3300 RPM Electric Input 120 volt/60 hertz Amperage 2 Ignition Manual, Piezo Ignitor Gap 4.3 mm (0.17") Temperature Range for Operation* -6.7°C to 29.5°C (-20°F to 85°F )* Heater Weight 6.6 kg (14.5 lbs) Shipping Weight 7.3 kg (16 lbs) Size - L x W x H 47x 19.6 x 32.5 cm (18.5 x 7.7 x 12.8 in)

* When running heater in temperatures above 29.5° C (85° F), high internal temperatures may cause thermal limit device to shut down heater.

ACCESSORIES

Purchase accessories and parts from your nearest dealer or service center. If your dealer or service center can not supply an accessory or part, call DESA Industries' Parts Department at 1-800-826-8010. You can also write to the address listed on the back page of this manual.

DESA Industries 2220 Argentia Road Unit #4 Mississauga, ON L5N2K7 905-826-8010

REPLACEMENT PARTS

WARNING: 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. This will also protect your warranty coverage for parts replaced under warranty.

Parts Under Warranty

Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA Industries at 905-826-8010.

When calling DESA Industries, have ready

• your name

• your address

• model number of your heater

• how heater was malfunctioning

• purchase date In most cases, we will 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), call DESA Industries’ Parts Department at 905-826-8010.

When calling DESA Industries, have ready:

• model number of your heater

• the replacement part number

Part Number Description

LPA1020 3 m (10') Rubber Hose with Brass Fitting

U.L. listed.

LPA2140 Propane Gas Regulator

U.L. listed.

LPA3055 Hose/Regulator Assembly

U.L. listed.

LPA4020 Fuel Gas Connector

Connects regulator to all standard propane tanks. U.L. and A.G.A. listed.

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