Vermont Casting DVRT41 manual Burner and Pilot Orifice Conversion, Nova SIT820 Valve

DVRT41Direct Vent Gas Fireplace

Conversions must be completed by qualified personnel

Fuel Conversion Instructions

To convert the DV360/580 units for use with a different gas follow 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. (See "Win- dow Frame Assembly Removal", Page 23, Fig. 46)

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. 56)

2.Remove the screw from center of HI/LO knob with small screwdriver turning counterclockwise. (Fig. 56)

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. 58)

3.Install the enclosed conversion label (F) to the valve body where it can easily be seen. (Fig. 58)

Valve conversion is complete.

E

	OFF
	P
N	IL
O	T O

D

F

Cap

Lift Open

HI

LO

Hi-Lo Knob

HI

LO

Remove

Center Screw

CO100

FC108

Fig. 58 Replace regulator.

Burner and Pilot Orifice Conversion

1.	Remove manifold mounting screw from burner. (Fig.
	59)
2.	Remove burner orifice from manifold assembly using

Fig. 56 Remove center screw from Hi-Lo knob.

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. 57)

A

B

C

	OFF
N	P
		L
	I
O	TO

FC107

Fig. 57 Remove mounting screws, pressure regulator tower and spring and diaphragm assembly.

3/8" wrench. (Fig. 60)

3. Install conversion orifices in place of orifices just

removed.

	Manifold		Pilot Location
	Assembly	Burner Pan
	Manifold Mounting
	Screw
Orifice			CO101b
Fig. 59	Remove manifold assembly.

Rear Burner Orifice: (Refer to Conversion Kit Orifice Chart)

	Front Burner Orifice:
	(Refer to Conversion Kit
CO102a	Orifice Chart)

Fig. 60 Burner orifice replacement.

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