Desa RCLP155AT User Manual

CANADIAN PROPANE CONSTRUCTION FORCED AIR HEATER

OWNER’S MANUAL

MODEL RCLP155AT

150,000 BTU/HR WITH BUILT-IN THERMOSTAT

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.

Safety Information ............................................... 2

Unpacking ........................................................... 3

Product Identiﬁcation ........................................... 3

Propane Supply ................................................... 3

Theory of Operation ............................................ 4

Ventilation ............................................................

Installation ........................................................... 4

Operation ............................................................. 5

Storage ................................................................ 6

Maintenance ........................................................ 6

TABLE OF CONTENTS

Service Procedures ............................................. 6

Replacement Parts .............................................. 7

Speciﬁcations ...................................................... 7

Troubleshooting ................................................... 8

Technical Service ................................................

Accessory ............................................................ 8

Wiring Diagram .................................................... 9

Illustrated Parts Breakdown and Parts List ....... 10

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

Save this manual for future reference.

For more information, visit www.desatech.com

SAFETY INFORMATION

WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm.

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 prod ucts 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•CGA2.14. 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 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.

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 warn ings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.

1. 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 Lique ﬁed 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.

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

3. The electrical connections and grounding of the heater shall follow the National Electric

Code, ANSI/NFPA 70 or the Canadian Electri cal Code, Part 1.

4. Electrical grounding instructions — This appli ance 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.

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

6. Use only the hose and factory preset regulator provided with the heater.

7. Use only propane gas set up for vapor with drawal.

8. Provide adequate ventilation. Before using heater, provide at least a 3 ft. opening of fresh, outside air for each 100,000 Btu/Hr of rating.

9. For indoor use only. Do not use heater out doors.

10. Do not use heater in occupied dwellings or in living or sleeping quarters.

11. Do not use heater below ground level. Pro pane gas is heavier than air. If a leak occurs, propane gas will sink to the lowest possible level.

12. Keep appliance area clear and free from com bustible materials, gasoline, paint thinner and other ﬂammable vapors and liquids. Do not use heater in areas with high dust content.

13. Minimum heater clearances from combus tibles: Outlet: 8 ft. (2.50 m), Sides: 2 ft. (60 cm), Top: 6 ft. (2 m), Rear: 2 ft. (60 cm)

(0.28 m2)

www.desatech.com

109005-01C2

SAFETY INFORMATION

Continued

14. Keep heater at least 6 ft. (2 m) from propane tank(s). Do not point heater at propane tank(s) within 6 meters (20 feet).

15. Keep propane tank(s) below 100° F (38˚ C).

16. Check heater for damage before each use. Do not use a damaged heater.

17. Check hose before each use of heater. If highly worn or cut, replace before using heater.

18. Locate heater on stable and level surface if heater is hot or operating.

19. Not intended for use on ﬁnished ﬂoors.

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

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

22. Do not leave heater unattended.

23. Keep child ren and animals away from heater.

24. Never move, handle or service a hot, operating or plugged-in heater. Severe burns may result. Wait 20 minutes after turning heater off.

25. To prevent injury, wear gloves when handling heater.

26. Never attach duct work to heater.

27. Do not alter heater. Keep heater in its original state.

28. Do not use heater if altered.

29. Turn off propane supply and unplug heater when not in use.

30. 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.

31. This heater is equipped with a thermostat. Heater may start at anytime.

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.

PRODUCT

IDENTIFICATION

Hot Air Outlet (Front)

Lower Shell

On/Off Switch

Hose/Regulator Assembly

Figure 1 - 150,000 Btu/Hr Model

Upper Shell

Handle

Inlet Connector

Fan Guard

Power Cord

Thermostat

Knob

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) The chart below shows the number of 45 kg (100

lb) tanks needed to run this heater. Do not operate this product with any tank smaller

than 45 kg (100 lb).

Average Temperature Number Of Tanks

At Tank 100 lb (45 kg)

Above 20° F (-6.7° C) 2 20° F (-6.7° C) to 0° F (-18° C) 3 Below 0° F (-18° C) Use larger tank

Less gas is vaporized at lower temperatures. You may need two or more 45 kg (100 lb) tanks or one larger tank in colder weather. 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).

109005-01C 3

www.desatech.com

THEORY OF OPERATION

Air For Combustion And Heating

Fuel

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

Clean Heated Air Out (Front)

Ignitor

Fan

Motor

Cool Air In (Back)

Nozzle

DSI

Figure 2 - Cross Section Operational View

VENTILATION

WARNING: 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 a fresh air opening of at least 3 ft2 (0.28 m2) for each 100,000 Btu/Hr rating. Provide extra fresh air if more heaters are being used.

INSTALLATION

WARNING: Review and understand the warnings in the Safety Information section, page

2. They are needed to safely operate this heater. Follow all local codes when using this heater.

Solenoid Valve

Power Cord

On/Off Switch

Hose/ Regulator Assembly

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 POL fitting on hose/regulator as sembly to propane tank(s). Turn POL ﬁtting counterclockwise into threads on tank. Tighten ﬁrmly using wrench. Tighten regulator with vent pointing over the hose (see Figure 3, page 5).

3. Connect hose to inlet connector. Tighten ﬁrmly using a wrench (see Figure 4, page 5).

IMPORTANT: Extra hose or piping may be

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

www.desatech.com

109005-01C4

INSTALLATION

Continued

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

Note: If not opened slowly, excessﬂow 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.

OPERATION

WARNING: Review and understand the warnings in the Safety Information section, page

2. They are needed to safely op erate this heater. Follow all local codes when using this heater.

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. Correct all leaks at once.

6. Close propane supply valve.

Regulator

Supply Valve

Propane Tank

Figure 3 - Regulator With Vent Pointing

Over Hose

Inlet Connector

Figure 4 - Hose and Inlet Connector

Hose

(pointing

over hose)

Fuel Gas Connector

Hose

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 6 ft (2 m) long. Extension cord must be UL/CGA listed.

Extension Cord Size Requirement Up to 50 ft (15 m) long, use 18 AWG rated

cord.

51 to 100 ft (16 to 30 m) long, use 16 AWG

Vent

rated cord.

101 to 200 ft (31 to 60 m) long, use 14 AWG

rated cord.

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

5. Open propane supply valve on propane tank(s) slowly. Note: If not opened slowly, excessﬂow check valve on propane tank may stop gas ﬂow. If this happens, close propane supply valve and open again slowly.

6. Turn on/off switch to the ON position. Adjust thermostat to desired setting. If heater does not start, thermostat setting may be too low. Turn thermostat knob to higher position to start heater. Note: If heater does not start, turn on/off switch to the OFF position. Wait ten seconds for safety control to reset, then try again.

Note: If heater still does not start after turning thermostat knob to a higher position, the high temperature switch may have opened during thermostat shut down. Allow high temperature switch to reset. This usually takes 10-15 minutes. Try starting heater again after switch resets.

TO STOP HEATER

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

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

3. Turn on/off switch to the OFF position.

4. Unplug heater.

109005-01C 5

www.desatech.com

STORAGE

SERVICE PROCEDURES

CAUTION: Disconnect heater

from propane supply tank(s).

1. Store propane tank(s) in safe manner. See Chapter 5 of Standard for Storage and Han

dling of Liqueﬁed Petroleum Gases, ANSI/ NFPA 58 and/or CAN/CGA B149.2. 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.

MAINTENANCE

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

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.

2. Inspect heater before each use. Check connec tions 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.

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

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

PREVENTATIVE MAINTENANCE SCHEDULE

Item How Often How To

Clean every 500 hours of

Fan See Fan

operation or as needed

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

and electrical shock can occur.

UPPER SHELL REMOVAL

1. Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together.

2. Lift or slide upper shell off.

3. Remove fan guard.

Figure 5 - Upper Shell Removal

FAN

IMPORTANT: Remove fan from motor shaft before removing motor from heater. The weight

of the motor resting on the fan could damage the fan pitch.

1. Remove upper shell (see above).

2. Use 1/8" hex wrench to loosen setscrew which holds fan to motor shaft.

3. Slip fan off motor shaft.

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

5. Dry fan thoroughly.

6. Replace fan on motor shaft. Make sure set screw is touching back of ﬂat surface on motor shaft (see Figure 8, page 7).

7. Place setscrew on ﬂat of shaft. Tighten set screw ﬁrmly 4.5 to 5.6 N-lb (40-50 in-lb).

8. Replace fan guard and upper shell.

www.desatech.com

109005-01C6

SERVICE PROCEDURES

Continued

Fan

Figure 6 - Fan Removal

Fan

Motor Shaft

Figure 7 - Fan, Motor Shaft and Setscrew

Setscrew

Figure 8 - Fan Cross Section

Location

Hub

Motor Shaft

Motor

Setscrew

Fan

IGNITOR

Make sure gap between ignitor electrode and burner nozzle is 0.13/0.15 in (3.3/3.8 mm). Access ignitor electrode from inside combustion chamber. No other maintenance is needed for ignitor.

REPLACEMENT PARTS

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If they canʼt supply original replacement part(s), call DESA Industries at 1-905-826-8010.

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 part to the factory.

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they canʼt supply original replacement part(s), call DESA Industriesʼ Parts Department at 1-905-826-8010.

When calling DESA Industries, have ready:

• model number of your heater

• the replacement part number

SPECIFICATIONS

• 150,000 Btu/Hr Input Rating

• Propane Vapor Fuel Only

• Fuel Consumption - 1.6 Gal/hr (6 Liters/hr)

Fuel Consumption - 7.0 lb/hr (26.4 Kg/hr

• Supply Pressure To Regulator:

Minimum (for purposes of input adjustment) 0 psi 69 (kPa), Maximum - Tank Pressure

• Regulator Outlet Pressure (Factory Preset)

12.5 in (31.8 cm) WC

• Manifold Pressure - 9.8 in (24.9 cm) WC

• Hot Air Output (CFM Approx) - 15.6 (550)

• Motor - 3,450 RPM, 1/8 HP

• Electric Input - 120 V/60 Hz

• Amperage - 2.2

• Ignition - Direct Spark, Interrupted Type

• Ignitor Gap - 0.13/0.15 in (3.3/3.8 mm)

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.

109005-01C 7

www.desatech.com

TROUBLESHOOTING

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

OBSERVED FAULT

Fan does not turn when heater is plugged in

Heater will not ignite

Heater shuts down while run ning

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

POSSIBLE CAUSE

1. No electrical power to heater

2. Fan hitting inside of heater shell

3. Fan blades bent

4. Defective motor

1. User did not follow installa tion or operation instructions properly

2. No spark at ignitor. See Ig nitor, page 7. 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) Bad ignitor electrode

1. Propane supply may be inad

equate

2. High surrounding air tem perature causing thermal limit device to shut down heater.

3. Restricted air ﬂow

4. Damaged fan

5. Excessive dust or debris in surrounding area

REMEDY

1. Check voltage to electrical outlet. If voltage is good, check heater power cord for breaks

2. Adjust motor/fan mount to keep fan from hitting inside of heater shell. Bend fan mount if necessary

3. Replace fan. See Fan, page 6

4. Replace motor

Repeat installation and operation

instructions. See Installation, page 4 and Operation, page 5

2. A) Check ignitor wire. Tighten

or reattach loose ignitor wire.

B) Assure gap between ignitor

electrode and target plate is

0.13"0/.15" (3.3/3.8 mm). Do not bend electrode. Doing so may cause it to break

C) Replace ignitor electrode

1. A) Reﬁll tank B) Provide additional and/or

larger tanks. See Propa ne Supply, page 3

2. This can happen when running

heater in temperatures above 85° F (29˚ C). Run heater in cooler temperatures

3. Check heater inlet and outlet. Remove any obstructions

4. Replace fan. See

5. Clean heater. See Mainte

nance, page 6

Fan, page 6

TECHNICAL SERVICE

You may have further questions about this heater. If so, contact DESA Heating Productsʼ Technical Service Department at 1-866-672-6040. When calling, please have your model and serial numbers of your heater ready.

You can also visit DESA Heating Productsʼ Techni cal Service web site at www.desatech.com.

www.desatech.com

ACCESSORY

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 Industriesʼ Parts Department at 1-905-826-

8010. You can also write to the address listed on the back page of this manual.

THERMOSTAT - HA1210

109005-01C8

+ 16 hidden pages