Vermont Casting 36XDV User Manual

40

To convert the XDV units for use with a different gas fol-
low these instructions. Before proceeding, turn control 
knob on valve to “OFF” and turn gas supply OFF. Turn 
OFF any electricity that may be going to the appliance.
CAUTION: Logs may be HOT! Allow to cool before 
proceeding.
1.  Open louvre assembly bottom to gain access to valve. 

Remove window frame assembly. (Refer to “Window 
Frame Assembly Removal”, Page 24, Fig. 48)

2.  Remove logs if previously installed.
Honeywell Valve
1.  Remove cap from HI/LO knob. This can be accom-

plished by lifting the plastic cap off the screw. (Fig. 
73)

2.  Remove the screw from center of HI/LO knob with 

small screwdriver turning counterclockwise. (Fig. 73)

3.  Insert conversion screw supplied in conversion kit. 

Blue for natural gas, red for LP.

4.  Tighten screw, replace cap.

2.  Insure the rubber gasket (D) is properly positioned 

and install the new HI/LO pressure regulator assem-
bly to the valve using the new screws (E) supplied 
with the kit. Tighten the screws securely. (Ref. torque 
= 25 in/lb) (Fig. 75)

3.  Install the enclosed conversion label (F) to the valve 

body where it can easily be seen. (Fig. 75)

Valve conversion is complete.

CO100

Gas conversion

HI-LO knob

3/15/99   djt

LO 

HI 

LO 

HI 

Hi-Lo Knob

Cap

Lift Open

Fig. 73  Remove center screw from Hi-Lo knob.

Remove 

Center Screw

CO100

NOVA SIT820 Valve
1.  Using the TORX T20 bit, remove and  discard the 

three (3) pressure regulator mounting screws (A), 
pressure regulator tower (B) and the spring and 
diaphragm assembly (C).  (Fig. 74)

FC107

SIT820

valve conversion

10/03   

A

B

C

OFF

PILO

T

ON

Fig. 74  Remove mounting screws, pressure regulator tower 
and spring and diaphragm assembly.

FC107

D

E

F

FC108

SIT

regulator

conversion

10/03

OFF

PILOT

ON

FC108

Fig. 75  Replace regulator.

Burner Orifice Conversion
33/36XDV
1.  Remove bracket rear log and front grate. (Fig. 76)
2.  Remove burner housing assembly and front burner 

tube. (Fig. 76)

3.  Remove burner orifice from manifold assembly using 
  3/8” wrench. (Fig. 76)
4.  Install conversion orifices in place of orifices just 

removed.

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Fig. 76  Remove manifold assembly.

Rear Burner Orifice:

(Refer to Conversion Kit 

Orifice Chart)

Front Burner Orifice:

(Refer to Conversion Kit 

Orifice Chart)

Main Burner 

Assembly

Pilot 

Location

Front Burner 

Tube

FP1612

5.  Remove air shutters from burner pan by removing 

shutter retaining screw then air shutter. (Fig. 77) 

6.  For 36XDV replace only rear air shutter.
  Natural Gas: Rear air shutter, close two sides, top  

 

and bottom open.

   

Front air shutter, fully open.