Vermont Casting 43LDVT PSE Pilot, SIT 820 Nova Gas Control Valve Fig, SIT top Convertible Pilot

LDVT Series Direct Vent Gas Fireplace

CONVERTING THE APPLIANCE FROM LP TO NATURAL GAS OR NATURAL GAS TO LP

The conversion of this appliance from one gas to another must be carried out by an authorized service provider.

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 the correct parts are used.

1.	Disconnect power to unit and shut off gas supply.
2.	Remove window frame assembly.
3.	Carefully remove the logs & lava rock material.

9.PSE Pilot

Using a suitable wrench on the hexagonal body, un- screw 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 over-tighten the pilot hood. The hood must return to its original alignment. Take care not to damage the thermocouple, thermo- pile or igniter.

10.SIT 820 NOVA Gas Control Valve (Fig. 46)

a.Using a Torx T20 or slotted screwdriver, remove and save the three pressure regulator mount- ing screws (A), pressure regulator tower (B) and diaphram (C).

4.	Remove the screws that are holding the burner
	housing assembly in place.
5.	Remove the burner housing assembly. Depending
	on the model of the appliance you may have to loos-
	en the pilot bracket retaining screw/nut to allow the
	pilot and bracket assembly to tilt and give enough
	clearance to remove the burner housing assembly.
6.	For Model 36LDVT ONLY: Remove the rear log
	support and relocate the two (2) screws that locate
	the rear log as shown in Figure 45.

Natural Gas

A

B

C

	OFF
	P
	I
O	OT

E

	OF
	FP
	I
O	TO

F

D

820

Log Locator

Pin

Propane Gas

Log Locator

Pin

KT615

Fig. 45 Move log locator pins to new locations on rear log support.

7.Remove the main burner orifice and replace it with the orifice supplied in the conversion kit.

8.SIT top Convertible Pilot

Gently lift off the 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.

Fig. 46 Nova SIT 820 gas valve.

b.Ensure the rubber gasket (D) is properly posi- tioned and install the new Hi/Lo pressure regula- tor to the 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. 47)

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 the 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 the conversion label supplied with con- version screw to the valve in a visible position.

11.Reassemble the fireplace in the reverse order, ex- cept for the window frame assembly. Leave this off until after the unit has been checked for leaks and the gas supply has been bled.

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