Vermont Casting RADVTCCG, RADVTMB, RADVTSG, RADVTCB Pilot Orifice Conversion, Pilot Type 1 SIT Pilot

2.Remove and replace plug on lower right hand side of the valve; Red for LP and Blue for NG. (Page 32, Fig. 57)

3.Remove motor top cap using a standard slotted screwdriver. Depress and turn center plunger until arrow points to correct screw. Red for LP and Blue for NG. NOTE: Plunger will “snap” into NG position when arrow is close to blue screw. It will not “snap” at LP (Red) position. (Fig. 66)

Radiance Direct Vent Gas Heater

Pilot Hood

Pilot

Bracket

CO105a

Center

Plunger

Blue - NGRed - LP

Motor Top Cap

Valve

LOCAL

FP1037b

Fig. 68 Remove pilot hood.

Index Tab	Allen Wrench
Snap Ring

Fig. 66 Depress and turn center plunger.

4.Insure manifold pressure remains between 3.2” - 3.5” w.c. for NG and 9.5” - 10” w.c. for LP. To adjust the manifold pressure, for NG, using a Torx #10 key turn the blue screw clockwise to increase the manifold pressure. Turn the screw counterclockwise to de- crease the pressure. Use the red screw to adjust LP.

5.Replace motor top cap.

Pilot Orifice Conversion

1. Locate pilot. (Fig. 67)

Pilot

ST916

Fig. 67 Locate pilot.

2.Replace pilot orifice.

Pilot Type 1 (SIT Pilot)

•Remove pilot hood by lifting up. (Fig. 68) Do not remove the snap ring to remove the pilot hood. NOTE: It is not necessary to remove the pilot tube for conversion.

•Remove pilot orifice with Allen wrench. (Fig. 69)

•Install the conversion orifice.

•Reinstall pilot hood. Be sure to align hood with index tab.

CO106a

Fig. 69 Remove pilot orifice.

Pilot type 2 (Honeywell Pilot)

•Loosen pilot hood turning counterclockwise using a 7/16” wrench. (Fig. 70) NOTE: You may use pen- etrating oil to prevent pilot hood threads from seizing up.

Pilot Hood

Index

Marks

Pilot Bracket

CO143

Fig. 70 Remove pilot hood. (Your pilot may have a different appearance.)

•Remove pilot orifice with needlenose pliers. (Fig. 71) NOTE: Use a wrench to hold pilot tube in place while removing the orifice.

•Install the conversion orifice.

•Reinstall pilot hood and tighten until mark on pilot hood aligns with mark on pilot bracket.

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