38
Vermont Castings, Majestic Products DVRT36/ 39/ 43
10002428
Fuel Conversion Instructions
The procedure for converting from one
gas to another is the same regardless of
the initial gas used. The only variation is
in the orifice sizes and component part
numbers. Your authorized service
provider will ensure correct parts are
used.
Honeywell Gas Control Valve (Fig. 56)
The Honeywell valve fitted to this unit is suitable for
use with LP or Natural Gas. It is converted to the
required gas application by installation of a color
coded “conversion screw.”
a) Using a suitable small screwdriver lift out the
central regulator cap from the HI/ LO knob on
the valve.
b) Unscrew the exposed conversion screw.
c) Insert the new color coded conversion screw.
Do not overtighten the screw; it must be
finger tight.
d) Refit the regulator cap.
e) Mount conversion label supplied with conversion
screw to valve in a visible position.
10. Reassemble fireplace in the reverse order, except
window frame assembly. Leave this off until after
unit has been checked for leaks and the gas
supply has been bled.
11. After bleeding gas line and checking for leaks with
a soap solution, replace the front glass. Fire up the
unit, check for flame impingement on logs, adjust-
ing them if necessary. Check manifold and supply
pressures against the appliance specifications.
The conversion of this appliance from
one gas to another must be carried out
by an authorized service provider.
1. Disconnect power to unit and shut off the gas
supply.
2. Remove the glass (see ‘Window Frame Assembly
Removal’ Section).
3. Carefully remove the logs and lava rock material.
4. Remove the pilot assembly from the bracket.
5. Remove the screws that are holding the burner
housing assembly in place.
6. Remove the burner housing assembly.
7. Remove front and rear orifice and replace with the
orifice supplied in the conversion kit. Use the orifice
with the smallest hole for the front burner and the
orifice with the largest hole for the rear burner.
NOTE: On the DVRT43 (only), the adjustable
air shutter on the end burner housing must
be replaced. Refer to the instructions in the
specific gas conversion kit for details.
8. SIT Top Convertible Pilot
Gently lift off pilot hood from the pilot. (Do not
remove the spring clip holding the hood in place).
Using a correct size Allen key, unscrew the exposed
orifice. Insert the new orifice supplied in the kit; do
not overtighten the orifice. Replace the pilot hood
ensuring the index tab aligns with the notch on the
hood.
PSE Pilot
Using a suitable wrench on the hexagonal body
unscrew the pilot hood assembly from the pilot, do
not twist the hood itself. Remove the orifice and
replace it with the new orifice supplied in the kit.
Refit the pilot hood assembly. Do not overtighten
the pilot hood. The hood must return to its
original alignment. Take care not to damage the
thermocouple, thermopile or igniter.
9. SIT 820 NOVA Gas Control Valve (Fig. 55)
a) Using a Torx T20 or slotted screwdriver, remove
and save (3) pressure regulator mounting screws
(A), pressure regulator tower (B), and diaphragm
(C).
b) Ensure the rubber gasket (D) is properly posi-
tioned and install the new HI/ LO pressure
regulator to valve using the new screws (E)
supplied with the kit. Tighten screws securely.
(Reference torque: 25 in-lb)
c) Install the enclosed identification label (F) to the
valve body where it can be easily seen.
Nova SIT820 Gas Valve
CO122
Fig. 55 Nova SIT 820 gas valve conversion.
