Desa RCLP375, BCLP375 User Manual

CANADIAN

PROPANE

CONSTRUCTION

HEATERS

OWNER’S MANUAL

LP-PFA/PV 008LP 375

For Models RCLP375 and BCLP375

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.

CONTENTS

SECTION PAGE

Safety Information.........................................................................3

Product Identification .................................................................... 4

Unpacking......................................................................................4

Theory of Operation ...................................................................... 5

Propane Supply..............................................................................6

Installation .....................................................................................6

Ventilation .....................................................................................8

Operation .......................................................................................8

Troubleshooting.............................................................................9

Maintenance ..................................................................................9

Storage ........................................................................................... 9

Service Procedure .......................................................................... 10

Cleaning Fan ........................................................................... 10

Specifications ................................................................................12

Wiring Diagrams ........................................................................... 13

Accessories .................................................................................... 14

Technical Service .......................................................................... 14

Service Publications ......................................................................14

Replacement Parts ......................................................................... 14

Warranty and Repair Service.........................................................Back Cover

FOR YOUR SAFETY

Do not use this heater in a space where gasoline or other liquids having flammable vapors are stored or used.

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SAFETY

INFORMATION

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WARNINGS

WARNING ICON G 001

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.

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.

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.

• Do not use heater outdoors or in occupied dwellings. Only use for temporary heating of buildings under construction, alteration, or repair.

• Install and use heater with care. Follow all local ordinances and codes. In the absence of local ordinances and current codes, refer to CAN/CGA-B149.2 Installation Code for Propane. 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 38°C (100° F).

• Use only in well-vented areas. Provide at least a three-square-foot opening of fresh, outside air for each 105.500 kJ/hr (100,000 BTU/Hr) of rating.

• Use only in places free of flammable vapors or high dust content.

• Keep heater away from strong drafts, water spray, rain, or dripping water.

• Use only the electrical voltage and frequency speciﬁed on model plate.

• Use only a three-prong, grounded extension cord.

• Use only the hose and factory regulator provided with the heater.

• Inspect hose assembly before each use of heater. If excessive abrasion or wear is seen, or the hose is cut, replace before using heater. Use the replacement hose assembly that is speciﬁed by the manufacturer.

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

• Minimum heater clearances from combustibles: Front outlet: 3 m (10 Ft.) Sides: 0,61 m (2 Ft.) Top: 2 m (6 Ft.) Rear: 0,61 m (2 Ft.)

• Locate heater on stable and level surface while it is hot or running.

• Keep children and animals away from heater.

• Unplug heater when not in use.

• Never use heater in living or sleeping quarters.

• Never block air inlet (rear) or air outlet (front) of heater.

• Never move, handle, or service a hot, operating, or plugged-in heater.

• Never attach duct work to front or rear of heater.

• Do not adjust regulator below 48 kPa (7 psig) or above 138 kPa (20 psig).

• 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.

PRODUCT

IDENTIFICATION

Hot Air Outlet (Front)

Handle

Fan Guard

Outer Shell

Start Switch

UNPACKING

Inlet Connector

Figure 1 - RCLP375 and BCLP375 Models

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.

Power Cord

Hose /Regulator Assembly

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THEORY OF

OPERATION

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 burner control sends voltage to the ignitor. The ignitor ignites the fuel and air mixture.

The Safety Control System: This system causes the heater to shut down if the flame goes out. The motor will continue to run, but no heat is produced.

Clean Heated Air Out (Front)

Combustion Chamber

High Limit

Burner Control

Nozzle Solenoid

Air For Combustion Air For Heating

Ignitor

Fan

Valve

Motor

Cool Air In (Back)

Power Cord

Hose/Regulator Assembly

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Figure 2 - Cross Section Operational View

PROPANE

Propane gas and propane tank(s) are to be furnished by the user.

SUPPLY

INSTALLATION

Use this heater only with a propane vapor withdrawal supply system. 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) The chart below shows the number of 45-kg (100-pound) tanks needed to run this heater. Do not operate this product with any tank smaller than 45-kg (100 pounds).

Temperature °C (°F) At Tank

4,5 °C 0 °C -6.2 °C -17.7 °C -23.3 °C -28.9 °C (40 °˚F) (32 °F) (20 °F) (0 °F) (-10 °F) (-20 °F)

Number of tanks 3 (Use larger tank below 4,5°C [40°F])

Less gas is vaporized at lower temperatures. You may need a larger tank in colder weather. Your local propane gas dealer will help you select the proper supply system.

WARNING

WARNING ICON G 001

Review and understand the warnings in the Safety Information Section, page 3. They are needed to safely operate this heater. Follow all local codes when using this heater.

WARNING

WARNING ICON G 001

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 above).

2. Connect POL fitting on hose/regulator assembly to propane tank(s). Turn POL fitting counterclockwise into threads on tank. Tighten firmly using 2,22 cm (7/8 in.) wrench.

IMPORTANT:

Tighten regulator with black adjustment knob pointing down. Pointing adjustment knob down protects regulator from weather damage.

POL Fitting

Supply Valve

Propane Tank

Hose

Regulator

Adjustment Knob (pointing down)

Figure 3 - Regulator With Adjustment Knob Pointing Down

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INSTALLATION

Continued

3. Connect hose to inlet connector. Tighten firmly using a wrench.

IMPORTANT:

Use extra hose or piping if needed. Install extra hose or piping between hose/regulator assembly and propane tank. You must use the regulator supplied with heater.

Inlet Connector

Hose

Figure 4 - Hose and Inlet Connector

4. Open propane supply valve on propane tank(s) slowly.

Note:

If not opened

slowly, excess-flow check valve on propane tank will stop gas flow. If this happens, close propane supply valve and open again slowly.

5. Adjust regulator between 48 and 138 kPa (7 and 20 psig) (see Figure 5).

Note:

Higher regulator setting will allow heater to produce more heat.

WARNING

WARNING ICON G 001

Do not adjust regulator below 48 kPa (7 psig) or above 138 kPa (20 psig). Heater may not run properly.

5 10 15 20

5 1

5 10 15 20

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Regulator

Figure 5 - Adjustable Regulator Set At 48 kPa (7 psig)

6. Check all connections for leaks.

WARNING

WARNING ICON G 001

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.

7. Close propane supply valve.

VENTILATION

WARNING

WARNING ICON G 001

Follow the minimum fresh, outside air ventilation requirements. If proper fresh, outside air ventilation is not provided, carbon monoxide poisoning can occur. Provide proper fresh, outside air ventilation before running heater.

Provide at least a 0,28 m2 (three-square-foot) opening of fresh, outside air for each

105.500kJ/hr (100,000 BTU/Hr) of rating. This heater requires a fresh-air opening of at least 1 m

(9.75 square feet). Provide extra fresh air if using more heaters.

OPERATION

WARNING

WARNING ICON G 001

Review and understand the warnings in the Safety Information Section, page 3. 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 three-prong, grounded extension cord. Extension cord must be at least 2 m (6 ft.) long, CSA listed, and of a proper size.

4. Plug extension cord into a 120 volt/60 hertz, three-hole, grounded outlet.

5. Open propane supply valve on propane tank(s) slowly. slowly, excess-flow check valve on propane tank will stop gas flow. If this happens, close propane supply valve and open again slowly.

6. Make sure regulator is set between 48 and 138 kPa (7 and 20 psig).

Note:

Higher regulator setting will allow heater to produce more heat.

WARNING

WARNING ICON G 001

Do not adjust regulator below 48 kPa (7 psig) or above 138 KPa (20 psig). Heater may not run properly.

Note:

If not opened

7. Push start switch to start heater. Heater will start within six seconds.

Note:

If heater does not start, unplug the heater. Wait ten seconds for safety

control to reset, then try again.

To Stop Heater

1. Tightly close propane supply valve on propane tank(s).

2. Wait a few seconds. Heater will burn gas left in supply hoses.

3. Unplug heater.

To Restart Heater

If safety control stops gas flow to heater, motor will continue to run. To restart heater:

1. Unplug the heater. Wait ten seconds for safety control to reset.

2. Plug in heater. Push start switch.

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TROUBLE-

SHOOTING

If heater does not start or restart

• Check manual valves (if any) and supply valves (on propane tank). Make sure they are open.

• Check fuel level in propane tank(s). If fuel level is too low, contact local propane gas company.

If heater still does not start or restart, contact your local service center.

MAINTENANCE

WARNING

WARNING ICON G 001

• 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.

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 service person.

5. Keep inside of heater free from combustible and foreign objects.

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STORAGE

CAUTION

WARNING ICON G 001

Disconnect heater from propane supply tank(s).

1. Store propane tank(s) in safe manner. Follow all local codes.

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. Keep inside of heater free from combustible and foreign objects.

SERVICE

PROCEDURE

Cleaning fan

Clean fan every 500 hours of operation or as needed.

1. Remove screws on side cover using 7,8 mm (5/16 in.) nut-driver.

2. Remove side cover.

3. Detach the five motor wires from parts under heater shell. Be sure to detach only wires coming from motor. The five motor wires are:

• white wire—to terminal

board

• red wire—to terminal

board

• blue wire—to thermal

switch wire

• blue wire—to solenoid

valve

• green wire—to grounding

screw on shell

4. Remove fan guard from rear

of heater.

5. Reach into rear of heater

shell. Carefully pull motor wires through hole in bottom of shell. wires through hole one at a time.

6. Remove nuts and mounting

bolts holding motor mount to shell. Use 9,5 mm (3/8") nut-driver and 11,1 mm (7/16") wrench.

7. Carefully pull motor and fan

out of shell.

IMPORTANT:

not to damage fan. Do not set motor and fan down with the weight resting on fan. This could damage fan pitch.

8. Turn motor and fan around.

Place motor and fan into shell backwards. Motor will go into shell first (see Figure 8, page 11).

Note:

Pull

Be careful

Note:

WARNING

WARNING ICON G 001

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

Grounding Screw Thermal Switch Wire

Figure 6 -

Mounting Bolts

Relay

Location of Motor Wires

Terminal Board

Solenoid Valve

Motor Mount

Motor Wires

Figure 7 - Location of Fan and Motor

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9. Line up rear mounting holes in shell with first hole on each side of motor mount (see Figure 8).

Note:

When holes are lined up, fan should be outside of shell.

10.Holding mounting bolt, carefully reach through fan blades into rear of heater. Be careful not to damage fan pitch. Insert bolt through motor mount and shell. With free hand, attach nut finger tight. Repeat process for other mounting hole.

11.Use 3,1 mm (1/8") hex wrench to loosen setscrew which holds fan to motor shaft (see Figure 9).

12.Slip fan off motor shaft.

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

14.Dry fan thoroughly.

15.Replace fan on motor shaft. Make sure setscrew is touching back of flat surface on motor shaft (see Figure 10).

16.Place setscrew on flat of shaft. Tighten setscrew firmly (4,52-5,65 [40-50 inch-pounds]).

17.Remove two nuts and bolts securing motor mount to shell.

18.Pull motor and fan from shell. Turn motor and fan around. Carefully place back in shell.

Note:

Fan

will go into shell first.

19.Line up mounting holes in shell with holes on motor mount. Replace four bolts through shell and motor mount. Insert bolts from outside of heater. Tighten nuts firmly.

20.Route motor wires through hole in bottom of shell (see Figure 7, page 10).

Continued

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Rear Mounting Hole

Figure 8 - Fan and Motor Turned Around

Fan

Setscrews

Motor shaft

Figure 9 - Fan, Motor Shaft, and Setscrew Locations

Fan

Hub

Motor Shaft

Setscrews

Figure 10 - Fan Cross Section

First Hole

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