Desa GL36STEP, GL36STP Fireplace Installation, Continued, Mantels, Pilot Assembly Adjustment

FIREPLACE

INSTALLATION

Continued

Noncombustible

Facing Material

Do Not

Block

Effective

Opening

"L" Shaped

Metal Support

Noncombustible

Facing Material

Figure 17 - Fireplace Facing Material

MANTELS

Mantels, combustible or non-combustible, may be constructed as long as proper clearances are observed (see Figure 2, page 6 and Clearances, page 6).

PILOT ASSEMBLY ADJUSTMENT

The pilot assembly is factory preset for the proper flame height. Alteration to factory settings may have occurred during shipping. If this is the case, some minor readjustments may be necessary and should be done by a qualified technician.

The pilot assembly is located behind the burner next to the rear refractory piece at the right-hand side. The thermopile (in millivolt models) or the sensor (in electronic models) should be engulfed with the pilot flame approximately 3/8" to 1/2" in order for the regulator to receive proper signal (see Figures 18 and 19).

Pilot Burner	Ignitor
	3/8" to 1/2"
1/8" (3 mm)	(10 mm - 13 mm)

Pilot Burner	Ignitor	Flame
1/8" to 1/4"		Sensor
		3/8" to 1/2"
Pan
Burner

Figure 19 - Correct Pilot Flame Pattern

- Electronic Assembly

BURNER FLAME ADJUSTMENT

The air shutter, located at the base of the main burner tube, has been factory preset to the proper air to bas ratio which results in a long, blue, cleaner burning flame (see Figure 20).

If readjustment is necessary, loosen the air shut- ter screw and rotate air shutter until proper flame setting is achieved, retighten air shutter screw. See Figure 20 for air shutter location.

Closing the air shutter reduces the air-to-gas mix, resulting in a longer, yellow flame wihich produces excessive carbon monoxide (CO) and could also cause sooting.

Burner Pan

Air Shutter

Screw

Orifice

Gas Valve

Figure 20 - Air Shutter Adjustment

Thermopile

Figure 18 - Correct Pilot Flame Pattern

- Millivolt Assembly

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