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104133

NATURAL GAS CONSTRUCTION HEATER

MODEL TC250RNG

1.

Provide natural gas supply system.

2.

Install plumbing from natural gas sup-
ply system to heater. Provide 4 psi gas
pressure to heater. If gas supply pres-
sure is over 4 psi, use high pressure
regulator (provided).

3.

Connect gas supply to heater using
minimum 3/8" i.d. hose. Maximum
hose length is 10 feet.

4.

Connect hose or plumbing to 1/2" SAE
flare fitting at the valve inlet. Tighten
all fittings with a wrench.

5.

Open natural gas supply valve slowly.
Check all connections for leaks. Never
use an open flame to check for a leak.
Apply mixture of liquid soap and wa-
ter to gas joints. Bubbles forming show
a leak that must be corrected. Correct
all leaks at once.

6.

Close natural gas supply valve.

Figure 2 - Installing Regulator

Screws

Copper Fuel Tube

 WARNING: Test all gas pip-

ing 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.

INSTALLATION

 WARNING: Review and un-

derstand 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.

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 end of fuel tube to heater
inlet. Firmly tighten fuel tube flare nuts
onto each fitting.

4.

Open natural gas supply valve slowly.
Check all connections for leaks. Never
use an open flame to check for a leak.
Apply mixture of liquid soap and wa-
ter to gas joints. Bubbles forming show
a leak that must be corrected. Correct
all leaks at once.

5.

Close natural gas supply valve.

6.

Follow steps under To Start Heater in
the OPERATION section (page 5) of
this manual.

Installing High Pressure
Regulator

If the inlet supply pressure is above 4 psi,
you must use the high pressure regulator
(supplied). Follow the instructions below to
install regulator.

1.

Install pipe or flexible connector (not
supplied) from gas supply to high pres-
sure regulator. Pipe or flexible connec-
tor must be a minimum of 3/8" i.d. with
a maximum lenth of 10 feet. Attach pipe
or flexible connector to inlet of regula-
tor. The female threads of the regulator
are 1/2 npt. 

Note:

 The natural gas sup-

ply must deliver 250 CFH of natural

Regulator

Содержание TC250RNG

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 10: ...____________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ ___________________________________________________________________________...

Страница 11: ...____________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ ___________________________________________________________________________________________...

Страница 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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