Vermont Castings SDDVRBD, SDDVRC, SDDVRCCB Installation And Operating Manual page 41

Burner Orifice Conversion
1. Remove three (3) 3/8" nuts on bottom side of burner
pan. (Fig. 74)
2. Carefully remove ember bed by tilting the right side
up and lifting out toward the right side of the unit.
(Fig. 75)
Bottom View
ST918
Fig. 74 Remove three (3) nuts securing ember bed in place.
Orifice
Bracket
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Fig. 75 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. 76)
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 77.
20012950
Remove Nut
Remove Nuts
Pem Studs
ST919
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Stardance Direct Vent - Rear Vent Gas Heaters
Fig. 76 Use two wrenches to avoid damage to manifold.
Orifice
Orifice
Bracket
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Fig. 77 The air shutter setting is 1/2" (13 mm) from the orifice
bracket to the edge of the air shutter.
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All Models
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1. Replace burner making sure venturi on bottom of
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ember bed aligns with orifice and is seated properly
on air shutter assembly. (Fig. 75) 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 74.
3. Reinstall logs as per instructions on Page 29.
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 33.
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.
CO145
Air Shutter
CO142
41