Specifications

Start-Up

GAND-SVX01B-EN 29

Pilot Adjustment

1. Remove the pilot adjustment cap.

2. Adjust the pilot screw to provide a properly sized

flame.

3. A proper pilot flame is a soft steady flame that

velops 3/8- to 1/2-inch (9.5 to 12.7 mm) of the

ermocouple .

4. Replace the pilot adjustment cap.

Manifold Pressure Adjustment

If the manifold pressure requires minor adjustment,

remove the cap from the pressure regulator and turn the

adjustment screw clockwise to increase the pressure, or

counterclockwise to decrease the pressure. The adjusted

manifold pressure should not vary more than 10 percent

from the pressures specified in Table 6, p. 28.

Figure 21. Main burner flames

LIFTING

(TOO MUCH AIR)

NORMAL

(HARD FLAME)

YELLOW TIPPING

(MARGINAL)

YELLOW FLAME

(TOO LITTLE AIR)