Lb-white I-5 Infraconic Manual de usuario descargar pdf (Pagina 19)

19

Problem 3

Inner

Combustion

Cone Lights,

but will not

Stay Lit

Did you

Allow Sufficient Time

for the Thermocouple

to Warm Up?

Is

the Gas Hose

Plugged?

Allow 30 - 60

Seconds Warm-Up

Before Releasing

Pilot Button.

Remove the Component and

Clean It.

Yes

No

Yes

Yes

Yes

Is

Thermocouple

Defective?

Check Millivolt Output of

Thermocouple with Millivolt Test Kit.

Output Should be at Least 4 mv D.C. A

Reading of Less Than 4 mv D.C. Can

Cause Inner Cone to Go Out. If

Thermocouple is Weak, Replace it.

Is Safety

Control Valve

Defective?

Is Burner Orifice

Plugged?

Remove Orifice and Clean It.

Check Gas Pressure to the

Heater Inlet with a Gas Gauge.

Proper Pressure at High Heat

Should Read 5 PSIG. Low Heat

is 10 in. W.C.

No

No

No

Is Thermo-

couple Contact Nut

Tightened Securely into

Gas Control

Valve?

Snug Contact Nut in

Place. (Do Not

Overtighten.) Check for

Debris Between Contact

of Thermocouple and

Electromagnet of Valve.

Yes

No

Is

Thermocouple

Positioned Properly

in Heater?

Thermocouple body to

be 5/8 in. above

Heater’s Canopy.

Yes

No

Is Button

on Safety Control

Valve Fully

Depressed?

Depress the Button on the

Pilot Safety Valve until Gas

Flows Through.

Yes

No

Check Drop-Out of Electromagnet in Safety

Control Valve with the Millivolt Test Kit. The

Valve Magnet Should Drop Out at 2.0 mv D.C.

If the Magnet Drops Out above 2.0 mv D.C.,

Replace the Safety Control Valve.

Yes

Is Proper Gas

Pressure Supplied to

the Heater?

No

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