Fuel Conversion Instructions

CDV Series Direct Vent Gas Fireplace

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

1.	Disconnect power to the unit and shut off the gas sup-
	ply.
2.	Remove window frame assembly.
3.	Carefully remove the logs & lava rock material.
4.	Remove the screws that are holding the burner hous-
	ing in place.
5.	Remove the burner housing assembly. Depending on
	the model of the appliance you may have to loosen
	the pilot bracket retaining screw/nut to allow the pilot
	and bracket assembly to tilt and give enough clear-
	ance to remove the burner housing assembly.

	OFF
	P
	I
O	TO

	OFF
	P
	I
O	OT

FC107/108

6. Remove the main burner oriﬁce and replace it with the

oriﬁce supplied in the conversion kit.

7. SIT top Convertible Pilot

Gently lift off the pilot hood from the pilot. (Do not re-

move 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.

8. SIT 820 NOVA Gas Control Valve (Fig. 62)

a. Using a Torx T20 or slotted screwdriver, remove

and save the three 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 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.

9. Reassemble the ﬁreplace in the reverse order, except

for the window frame assembly. Leave this off until

after the unit has been checked for leaks and the gas

supply has been bled.

10. After bleeding the gas line and checking for leaks with

a soap solution, replace the window frame assembly.

Fire up the unit, check for ﬂame impingement on the

logs, adjusting them if necessary. Check the manifold

and supply pressures against the appliance speciﬁca-

tions.

Fig. 62 Nova SIT820 Gas Valve.

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.

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