Vermont Casting DVR33 manual Fuel Conversion Instructions

Vermont Castings, Majestic Products: DVR33

Fuel Conversion Instructions

For RN and RP models only:

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 5/32” Allen key, unscrew the exposed orifice. Insert the new orifice supplied in the kit, do not over tighten 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 to not damage the thermocouple, thermopile, or igniter.

9.SIT 820 NOVA Gas Control Valve (Fig. 47):

a)Using a Torx T20 or slotted screwdriver, remove and save three (3) pressure regulator mounting screws (A), pressure regulator tower (B), and diaphram (C).

b)Ensure the rubber gasket (D) is properly positioned 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.

Honeywell Gas Control Valve (Fig. 48):

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 over-tighten the screw, it must be finger tight.

d)Refit the regulator cap.

e)Mount conversion label supplied with con- version 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 procedure for converting from one gas to another is the same regardless of the initial gas used. The only variations are in orifice sizes and component part numbers. Your authorized service provider will ensure correct parts are used.

Nova SIT820 Gas Valve	CO122
Fig. 47 Nova SIT 820 gas valve conversion.

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