Desa TC275 User manual

PROPANE

CONSTRUCTION

HEATER

OWNER’S MANUAL

IMPORTANT

Read and understand this manual before assembling, starting, or servicing heater.

Improperuseofheatercancauseseriousinjury.Keepthismanualforfuturereference.

GENERAL HAZARD WARNING:

FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PRO-

VIDED WITH THIS HEATER, CAN RESULT IN DEATH, SERIOUS BODILY INJURY

AND PROPERTY LOSS OR DAMAGE FROM HAZARDS OF FIRE, EXPLOSION,

BURN, ASPHYXIATION, AND/OR CARBON MONOXIDE POISONING.

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 INSTRUC-

TIONS MANUAL, LABELS, ETC. CONTACT THE MANUFACTURER.

Models: TC275 and RCP275

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SECTION PAGE

CONTENTS

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

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

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

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

Propane Supply..............................................................................5

Ventilation ..................................................................................... 5

Specifications ................................................................................ 5

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

Operation .......................................................................................7

Storage ........................................................................................... 8

Maintenance .................................................................................. 8

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

Accessories .................................................................................... 10

Service Publication ........................................................................ 10

Replacement Parts ......................................................................... 10

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

Safety Information continues on next page

SAFETY

INFORMATION

WARNING: FIRE, BURN, INHALATION, AND EXPLOSION

HAZARD.KEEPSOLIDCOMBUSTIBLES,SUCHASBUILDING

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,ORPRODUCTSSUCHASGASOLINE,SOL-

VENTS, PAINT THINNER, DUST PARTICLES OR UNKNOWN

CHEMICALS.

WARNING ICON G 001

WARNING

NOT FOR HOME OR RECREATIONAL VEHICLE USE.

The heater is designed for use as a construction heater. The primary purpose of

construction heaters is to provide temporary heating of buildings under construc-

tion,alteration orrepair,andtoprovidetemporaryemergencyheat. Properlyused,

the heater provides safe economical heating. Products of combustion are vented

into the area being heated.

Wecannotforeseeeveryusewhich may be madeofourheaters.Checkwithyour

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

monoxidethanothers.Earlysignsofcarbonmonoxidepoisoningresembletheﬂu,

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.

WARNINGS

099156

SAFETY

INFORMATION

Continued

WARNINGS

Continued

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.

• For indoor use only. Provide adequate ventilation.

• Do not use heater outdoors or in occupied dwellings.

• Do not use heater in living or sleeping quarters.

• 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.

• Do not use heater below ground level. Propane gas is heavier than air. If a

leak occurs, propane gas will sink to the lowest possible level.

• Use only in well-vented areas. Before using heater, provide at least three

square feet of fresh, outside air opening for each 100,000 BTU/Hr of rating.

This heater produces carbon monoxide, which is listed by the State of

California as a reproductive toxin under Proposition 65.

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

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

• Never attach duct work to heater.

• Neverblockairinlet(bottomofshell)orairoutlet(aroundtopofshell)ofheater.

• Keep children and animals away from heater.

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

• Minimum heater clearances from combustibles: Sides: 4 feet,

Top: 6 feet-2 inches.

• Install and use heater with care. Follow all local ordinances and codes. In the

absence of local ordinances and codes, refer to ANSI/NFPA 58. This in-

structs on the safe storage and handling of propane gases.

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

• Inspect hose before each use of heater. If highly worn or cut, replace before

using heater. Use the replacement hose assembly that is specified by the

manufacturer.

• Use only propane gas set up for vapor withdrawal.

• Keep propane tank(s) below 100°F.

• Keep heater at least six feet from propane tank(s).

• Never move, handle, or service a hot or operating heater. Severe burns may

result. You must wait 30 minutes after turning heater off.

• To prevent injury, wear gloves when handling heater.

• Turn off propane supply to heater when not in use.

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

• Do not use heater if altered.

• 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.

099156

LP-PFA/PV 013ALP 275

Main Burner

Valve Handle

Main Burner

Valve

PRODUCT

IDENTIFICATION

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.

UNPACKING

Figure 1 - Product Identification

Shell

Top

Thermocouple

Pilot

Automatic

Control Valve

Inlet

Connector

Base

Hose/Regulator

Assembly

Note: Debris Shield Not

Shown

THEORY OF

OPERATION

The Fuel System: The hose/regulator assembly attaches to the propane gas

supply. This provides fuel to the heater.

The Ignition System: The piezo ignitor lights the pilot fuel supply. The pilot

fuel supply is lit manually on all other models.

The Automatic Control System: The automatic control valve shuts off the

heater if the flame goes out.

Automatic

Control Valve

Button

Piezo Ignitor

Button

Ignitor

Electrode

099156

PROPANE

SUPPLY

You must provide propane gas and propane tank(s).

Use this heater only with a propane vapor withdrawal supply system. See

Chapter 5 of the Standard for Storage and Handling of Liquified Petroleum Gas,

ANSI/NFPA 58. 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 liquid propane gas in tank(s)

2. The temperature of tank(s)

The chart below shows the minimum number of 100-pound tanks needed to run

the heater. Connect tanks together with a manifold. Do not operate this product

with any tank smaller than 100 pounds.

Less gas is vaporized at lower temperatures. Two or more 100-pound tanks or one

larger tank may be needed in colder weather. Your local propane gas dealer will

help you select the proper supply system.

Average Temperature (°F)

At Tank Location 60°40°32°20°10°0°

Number Of Tanks 223333

SPECIFICATIONS Rating(BTU/Hr)

Fuel

Fuel Consumption

Gallons/Hour

Pounds/Hour

Supply Pressure (To Regulator)

Maximum

Minimum, for input adjustment

Regulator Outlet Pressure

Weight (Pounds)

Shipping Weight (Pounds)

Size - L x W x H (Inches)

TC275

230,000

Propane Vapor Only

2.5

10.7

Tank Pressure

40 psi

10 psi

181/2x 16 x 231/8

RCP275

275,000

Propane Vapor Only

12.75

Tank Pressure

40 psi

14 psi

181/2x 16 x 231/8

VENTILATION

FRESH OUTSIDE AIR OPENING REQUIREMENTS

HEATER SIZE SQUARE FEET OPENING

275,000 BTU/Hr

230,000 BTU/Hr 8.2

6.9

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.

099156

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.

INSTALLATION

Continued

Figure 3 - Hose and Inlet Connector

LP-PFA/OV 008Hose and Inlet Connector-LP200 & 275

Figure 2 - Regulator With Vent Pointing Down

Propane

Tank

1. Provide propane supply system (see Propane Supply, page 5).

2. Connect POL fitting on hose/regulator assembly to propane tank(s). Turn

POL fitting counterclockwise into threads on tank. Tighten firmly using

7/8" wrench.

IMPORTANT:

Tighten regulator with vent pointing down.

Pointing vent down protects regulator from weather damage.

Supply Valve POL Fitting

Hose

Regulator

Vent

(pointing down)

3. Connect hose to the inlet connector. Tighten firmly using 9/16" 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 even if propane tank has one.

Hose

Inlet Connector

WARNING

Review and understand the warnings in the Safety Informa-

tion Section. 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.

099156

6. Close propane supply valve.

Figure 4 - Main Burner Valve Handle, Automatic Control Valve Button, and

Piezo Ignitor Button Locations

LP-PFA/OV 006Gas Controls-TrashCan

Piezo Ignitor

Button

Main Burner

Valve Handle

Continued

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.

OPERATION

Automatic

Control Valve

Button

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.

WARNING

Review and understand the warnings in the Safety Informa-

tion Section. 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

on heater.

WARNING

Fully close main burner valve before lighting pilot. If not,

severe burns can occur. Do this by turning valve handle

towards the OFF position until it stops.

3. 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.

4. Push in and hold automatic control valve button (see Figure 4). Push piezo

ignitor button (see Figure 4). You may need to push the piezo ignitor button 3-

8 times until the pilot lights.

Note:

Hose may be filled with air. If so, keep

automatic control valve button pressed and wait 20 seconds before pressing

ignitor button again. When pilot lights, keep automatic control valve button

pushed in. Release button after 30 seconds.

099156

5. If pilot light goes out, repeat step 4.

6. When pilot remains lit, fully open main burner valve. Do this by turning main

burner valve handle towards the ON position until it stops.

Note:

Arrows on

main burner valve handle show directions for ON and OFF.

To Stop Heater

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

2. Shut off main burner valve. Do this by turning main burner valve handle

towards the OFF position until it stops.

Note:

Arrows on main burner valve

handle show direction for ON and OFF.

To Restart Heater

1. Wait five minutes after stopping heater.

2. Restart heater by following steps under “To Start Heater.”

STORAGE

CAUTION

Disconnect heater from propane supply tank(s).

CAUTION

Do not stack heaters over three high if more than one

heater is being stored. Secure heaters with rope or strap

after stacking.

1. Store propane tank(s) in safe manner. Refer to Chapter 5 of Standard for

Storage and Handling of Liquified Petroleum Gases, ANSI/NFPA 58. Follow

all local codes. Always store propane tanks outdoors.

2. Place plastic cover caps over brass fittings on inlet connector and

hose/regulator assembly.

3. Store in a dry, clean, and safe place.

MAINTENANCE

WARNING

Never attempt to service heater while it is connected to

propane supply, operating, or hot. Severe burns can occur.

1. Keep heater clean.

2. Inspect heater before each use. Check connections for leaks. Apply mixture of

liquid soap and water to connections. Bubbles forming show a leak that must be

corrected. 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.

099156

SYMPTOM

Pilot fails

to light.

Pilot lights

but goes

out when

automatic

control valve

button

is released.

Burn rate

is low.

POSSIBLE CAUSE

1. Propane supply valve closed

on propane tank(s).

2. Excess-flow check valve

closed.

3. Air in gas line.

4. Blockage in pilot orifice.

5. Piezo ignition system not

sparking.

1. Not enough warm-up time.

2. Low gas pressure.

3. Thermocouple loose or

needs to be replaced.

4. Automatic control valve

needs to be replaced.

1. Main burner valve not fully

open.

2. Plugged gas orifices.

3. Low gas pressure.

4. Low fuel supply.

REMEDY

1. Open propane supply valve

slowly.

2. Close propane supply valve on

propane tank and reopen

slowly.

3. Allow several minutes to purge

air with automatic control

valve button depressed.

4. Replace pilot orifice.

5. Adjust ignitor electrode gap to

.120". Check wire lead for

damage. Replace piezo ignitor

and/or ignitor electrode as

necessary.

1. Relight, hold automatic control

valve button in 45 seconds.

2. Check propane tank(s) for

proper gas supply.

3. Tighten connection or replace

thermocouple.

4. Replace automatic control

valve.

1. Fully open main burner valve

by turning the valve handle

towards ON position until it

stops.

2. Replace gas orifice.

3. Check gas supply; check

regulator output.

4. Consult propane gas supplier.

TROUBLE-

SHOOTING

You may have further ques-

tions about this heater. If so,

contact DESA International’s

Technical Service Department

at 1-800-323-5190.

WARNING

Never attempt to service heater while it is connected to

propane supply, operating, or hot. Severe burns can occur.

099156

ACCESSORIES

Purchase these accessories

and parts from your local

dealer or service center. If

your dealer or service center

can not supply an accessory or

part, contact your nearest

Parts Central (listed in the

separate Authorized Service

Center booklet) or call DESA

International’s Parts Depart-

ment at 1-800-972-7879. You

can also write to the address

listed on the back page of this

manual.

Part Number Description

LPA1020 10' Rubber Hose with Brass Fitting

U.L. listed.

LPA1030 15' Rubber Hose with Brass Fitting

U.L. listed.

LPA2010 Propane Gas Regulator

U.L. listed.

LPA3000 Hose/Regulator Assembly

U.L. listed.

LPA4000 Piezo Ignitor Kit

For matchless ignition.

LPA4010 Debris Shield

Protects valve controls from paint, plaster, and

other drying liquids.

LPA4020 Fuel Gas Connector

Connects regulator to all standard propane tanks.

U.L. and A.G.A. listed.

LPA2060 Adjusting Regulator and Gauge Assembly

Allows for reduced input operation where less

heat is needed.

You can obtain an Illustrated Parts List free of charge. Send your request along

with a self-addressed, stamped envelope to the address listed on the back page of

this manual. Be sure to include the model number of the heater.

SERVICE

PUBLICATION

Parts 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

Technical Service Department at 1-800-323-5190.

When calling DESA International, have ready

• your name • how heater was malfunctioning

• your address • purchase date

• model number of your heater

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), either contact your nearest Parts Central or call DESA International’s Parts

Department at 1-800-972-7879.

When calling DESA International, have ready

• model number of your heater

• the replacement part number

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.

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