Vermont Casting SNV30 manual Pilot Orifice Conversion, Remove pilot hood

Models: SNV30

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A

B

C

 

OFF

 

P

 

 

I

O

TO

L

 

FC107

Fig. 30 Remove mounting screws, pressure regulator tower and spring and diaphragm assembly.

E

Stardance Natural Vent Gas Heater

Pilot Hood

Pilot

Bracket

CO105a

Fig. 32 Remove pilot hood.

Index Tab

Allen Wrench

 

Snap Ring

 

CO106a

 

Fig. 33 Remove pilot orifice.

O

F

OFF

P

I TOL

D

FC108

is set at 1/8” or 3/8” opening depending on rating plate serial number. To convert to natural gas, the shutter should set to fully closed. Refasten the two nuts. (Fig. 35)

NOTE: Be sure burner leg remains at a 90° angle to firebox base after conversion.

3/8"

Fig. 31 Replace regulator.

3.Install the enclosed conversion label (F) to the valve body where it can easily be seen. (Fig. 31)

Pilot Orifice Conversion

14.Locate pilot. (Fig. 28)

15.Replace pilot orifice.

Remove pilot hood by lifting up. (Fig. 32) NOTE: It is not necessary to remove the pilot tube for conversion.

Remove pilot orifice with allen wrench. (Fig. 33)

Install the conversion orifice.

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

16.Adjust air shutter on the burner. The air shutter is located on the bottom of the burner on the left. (Fig. 34) Loosen the two nuts holding the shutter in place. On natural gas units, the shutter is shipped fully closed. To convert to LP, reset the shutter as speci- fied in Table 2. (Fig. 35) On propane unit the shutter

Air Shutter

(LP Position)

ST785

Fig. 34 LP air shutter settings.

Front Injector

Burner

Air Inlet

 

Rear

 

Injector

 

Air Inlet

 

Covered

Air Shutter

 

ST784

Fig. 35 Natural gas air shutter setting.

20007067

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Vermont Casting SNV30 manual Pilot Orifice Conversion, Remove pilot hood