Burner Oriﬁce Conversion, All Models

Burner Oriﬁce Conversion

1.Remove three (3) 3/8” nuts on bottom side of burner pan. (Fig. 71)

2.Carefully remove ember bed by tilting the right side up and lifting out toward the right side of the unit. (Fig. 72)

Remove Nut

Bottom View

Stardance Direct Vent/Natural Vent Gas Heater

CO145

Fig. 73 Use two wrenches to avoid damage to manifold.

Oriﬁce	Oriﬁce	Air Shutter

ST918

Remove Nuts

Bracket

Fig. 71 Remove three (3) nuts securing ember bed in place.

	Oriﬁce	Venturi Bracket
	Bracket	Venturi Bracket
	Bracket

Pem Studs

ST919

Fig. 72 Tilt ember bed slightly to correctly place on venturi and air shutter.

3.Remove injector oriﬁce from left burner bracket with a 1/2” wrench. Use a back up wrench to prevent damage to the manifold. (Fig. 73)

4.Install conversion oriﬁce. (Refer to Table 2)

5.The air shutter is factory set according to table on Page 7 and should not need adjustment. The air shutter opening may be veriﬁed by measuring as shown in Figure 74.

CO142

Fig. 74 The air shutter setting is 1/2” (13 mm) from the oriﬁce bracket to the edge of the air shutter.

All Models

1.Replace burner making sure venturi on bottom of ember bed aligns with oriﬁce and is seated properly on air shutter assembly. (Fig. 72) Make sure burner is slid into place at a slight angle and opposite to how it was removed. When burner is slid into place, the three (3) pem studs should slide down through clearance holes into the bottom of the control panel.

2.Thread and tighten 3/8” nuts back onto pem studs on underneath side of control panel, reversing Step 1 shown in Figure 71.

3.Reinstall logs as per instructions on Page 25.

4.Place conversion label on valve.

5.Replace glass and stove front.

6.Restore gas to system and relight appliance accord- ing to Lighting Instructions on Page 30.

7.Leak check the system using a gas leak detector solution.

8.Relight the main burner in both the “HI” and “LO” po- sitions to verify proper burner ignition and operation.

Conversion is complete.

20012734

SDDVT specifications

Vermont Casting's SDDVT, or the Signature Series Direct Vent Technology, represents a remarkable blend of design, efficiency, and functionality in the world of high-performance heating appliances. Known for its commitment to craftsmanship, Vermont Casting has long been synonymous with quality, and the SDDVT is no exception.

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Another significant aspect of the SDDVT is its high-efficiency performance. With an impressive Annual Fuel Utilization Efficiency (AFUE) rating, the SDDVT maximizes heat output while minimizing fuel consumption. This efficiency translates to lower energy bills and a reduced carbon footprint, making it an environmentally friendly choice for heating. The unit is designed to operate effectively even in extremely cold temperatures, ensuring comfort throughout the winter months.

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