Vermont Casting 36XDV - Manual (Page 41)

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XDV Direct Vent Gas Fireplace
Fuel Conversion Instructions
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 25, 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.
72)
2. Remove the screw from center of HI/LO knob with
small screwdriver turning counterclockwise. (Fig. 72)
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. 74)
3. Install the enclosed conversion label (F) to the valve
body where it can easily be seen. (Fig. 74)
Valve conversion is complete.
Conversions must be completed by qualified personnel
CO100
Gas conversion
HI-LO knob
3/15/99 djt
LO
HI
LO
HI
Hi-Lo Knob
Cap
Lift Open
Fig. 72 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. 73)
FC107
SIT820
valve conversion
10/03
A
B
C
OFF PIL
OT O
Fig. 73 Remove mounting screws, pressure regulator tower
and spring and diaphragm assembly.
FC107
D
E
F
FC108
SIT
regulator
conversion
10/03
OFF PIL OT O
FC108
Fig. 74 Replace regulator.
Burner Orifice Conversion
33/36XDV
1. Remove bracket rear log and front grate. (Fig. 75)
2. Remove burner housing assembly and front burner
tube. (Fig. 75)
3. Remove burner orifice from manifold assembly using
3/8” wrench. (Fig. 75)
4. Install conversion orifices in place of orifices just
removed.
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Fig. 75 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. 76)
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.