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104133

OWNER’S MANUAL

MAINTENANCE

 WARNING: Never service

heater while it is connected to
gas supply, operating, or hot.
Severe burns can occur.

1.

Keep heater clean. Clean heater annu-
ally 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
connections for leaks. Apply mixture
of liquid soap and water to connections.
Bubbles forming show a leak. Correct
all leaks at once.

3.

Have heater inspected yearly by a
qualified service agency.

4.

Keep inside of heater free from com-
bustible and foreign objects.

STORAGE

1.

Place plastic cover cap over brass fit-
ting on inlet connector.

2.

Store in dry, clean, and safe place.

3.

When taking heater out of storage, al-
ways check inside of heater. Insects and
small animals may place foreign ob-
jects in heater. Keep inside of heater
free from combustible and foreign ob-
jects.

 CAUTION: Disconnect heater

from natural gas supply.

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 Tech-
nical 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 for referral
information.

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 fa-
tal injuries. This will also protect
your warranty coverage for parts
replaced under warranty.

Summary of Contents for TC250RNG

Page 1: ...ARNING FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER CANRESULTINDEATH SERIOUSBODILYINJURYANDPROPERTYLOSSORDAMAGE FROM HAZARDS OF FIRE EXPLOSION BURN ASPHYXIATION CARBON MONOXIDE POISON ING 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 I...

Page 2: ...e heater serviced Natural Gas Natural gas has a distinctive odor This odor helps you detect a natural gasleak However theodormayfade Natu ral 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...

Page 3: ...re Feet Opening 7 5 WARNING Provide at least a 7 5 square foot opening of fresh outside air while running heater If proper fresh outside air venti lation is not provided carbon monoxide poisoning can occur Provide proper fresh outside air ventilationbeforerunningheater Theusermustfurnishthenaturalgassupply and the connections to the heater Regulate the natural gas supply down to 4 psi If over 4 ps...

Page 4: ...des when using this heater gas at 4 psi pressure for each heater connected to the system 2 Mount regulator to heater base below piezo ignitor button see Figure 2 Use 1 4 20 screws from hardware bag to at tach regulator to heater Mount regula tor so the outlet with male connector points toward the heater inlet 3 Attach the 1 2 copper fuel tube sup plied to male connector on regulator Attach other e...

Page 5: ... ignitor button see Figure 3 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 for gas to clear before pressing ignitor button again When pilot lights keep automatic con trol valve button pushed in Release button after 30 seconds 5 If pilot light goes out repeat step ...

Page 6: ...ton de pressed 3 Replace pilot orifice 4 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 for proper gas supply 3 Tighten connection or replace thermo couple 4 Replace automatic control valve 1 Fully open main burner valve by turn ing the valve handle toward...

Page 7: ...er from natural gas supply 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 Tech nical 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 ...

Page 8: ...8 104133 NATURAL GAS CONSTRUCTION HEATER MODEL TC250RNG ILLUSTRATED PARTS ON OFF 4 29 5 1 3 2 6 9 10 11 12 13 14 15 16 17 18 19 21 22 23 24 26 28 27 20 25 30 7 31 8 ...

Page 9: ...lectrode 1 13 097163 07 Pilot Burner Assembly 1 14 099237 01 Thermocouple Clip 1 15 097161 01 Pilot Burner Orifice 1 16 M5788 Sleeve 1 17 M5787 Hex Nut 1 18 103028 02 Pilot Tube 1 19 097152 01 Manual Control Valve 1 20 103901 01 Burner Support 1 21 099461 01 Tee Compression Gauge 1 22 099460 01 Brass Hex Cap 1 23 097155 01 Automatic Control Valve 1 24 097157 03 Female Connector 1 25 104142 01 Fuel...

Page 10: ...____________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ ___________________________________________________________________________...

Page 11: ...____________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ ___________________________________________________________________________________________...

Page 12: ...RRANTIES OR 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 limitations or exclusions may not apply to you This Limited Warranty gives you specific legal rights and you may also have other rights which var...

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