Lennox Hearth FGCK manual Pilot Burner Millivolt LMBV 36 Shown, Electronic Appliances, Hood

Models: FGCK

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Hood

HONEYWELL

VALVE

Flip Cap

Thread

Protector Pilot

Figure 2

Step 6. Refer to Figure 3 and remove the pilot hood assembly to access the hexed pilot ori- fice. Using a (4mm) Allen wrench, remove and replace the orifice with the one provided with this kit. Figure 4 shows the pilot reas- sembled, with proper flame. Figure 5 shows a typical pilot to burner relationship.

Pilot

Orifice

Hood

Ignitor Rod

³⁄₈" Min (9 mm)

Pilot

Nozzels

Figure 4

Pilot

Burner

(Millivolt LMBV 36 Shown)

Figure 5

CONTROL

OFF ON

 

I

IGNITE

 

 

ISP

Test

Port

Slotted

Cap

Spring

Test Adjusting

Screw

Figure 7

Step 8. Refer to Figure 6 and replace the pilot orifice as follows: Remove the ignitor assem- bly retainer clip, and carefully remove the ignitor assembly. Exercise extreme care to prevent damage to or breakage of the ignitor assembly. Remove the screw securing the pilot assembly to its mounting bracket. Back off the flare nut at the end of the pilot gas line to free the pilot assembly from the gas line.

Remove the pilot orifice and replace it with the one provided with this conversion kit. Rein- stall the pilot assembly by reversing the steps detailed here.

When reinstalling the ignitor assembly, use extreme care to prevent damage and break- age. Do not apply any leverage to the ignitor assembly while restoring the retainer clip to its original position.

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Figure 3

Electronic Appliances

Step 7. Honeywell Electronic Valves - See Figure 7. Remove the slotted cap screw, o- ring, pressure-regulating adjusting screw and spring. Retain all parts for possible later use. Install new components from this kit. Black cap and red spring for propane gas units. Silver cap and stainless steel spring fro natural gas units.

Pilot

Electronic Appliances Assembly

Ignitor

PilotAssembly

Orifice

Retaining

Clip

Flare Nut

Note: If the ignitor assembly is damaged, a replacement kit is available, order Catalog Number 87L54.

Figure 6

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

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Lennox Hearth FGCK manual Pilot Burner Millivolt LMBV 36 Shown, Electronic Appliances, Hood, Pilot Nozzels