Vermont Castings SDDVTCSBDSB Installation And Operating Instructions Manual page 38

Stardance® Direct Vent/Natural Vent Gas Heater
SDDVTCS Series Models
1. Using the TORX T20 bit remove and discard the three
(3) pressure regulator mounting screws from the old
pressure regulator assembly. (Figure 75)
Figure 76 Remove mounting screws from old pressure regula-
tor assembly. Replace step motor with new conversion step
ST1093
motor.
install new step motor
2. Insure the rubber gasket (D) is properly positioned
and install the new step motor (E) pressure regulator
assembly to the valve using the new screws supplied
with the kit. Tighten the screws securely. (Ref. torque
= 25 in/lb) (Figure 76)
3. Install the identification label (F) supplied with the step-
per motor to the valve body where it can easily be seen.
(Figure 76)
4. Make step motor and mV valve electrical connec-
tions.
5. Regulator conversion complete.
6. Test for Leaks
Pilot Orifice Conversion
1. Locate pilot. (Figure 77)
2. Replace pilot orifice.
Figure 77 Pilot assembly location.
38
ST935
SDDVT
pilot location
6/07
3. Remove pilot hood by lifting up. (Figure 78) Do not re-
move snap ring to remove pilot hood. NOTE: It is not
necessary to remove the pilot tube for conversion.
4. Remove pilot orifice with Allen wrench. (Figure 79)
5. Install the conversion orifice.
Pilot Hood
Pilot
Bracket
Figure 78 Remove pilot hood.
Index Tab
ST1093
Snap Ring
Figure 79 Remove pilot orifice.
6. Reinstall pilot hood. Be sure to align hood with index
tab.
Burner Orifice Conversion
1. Remove three (3) 3/8" nuts on bottom side of burner
pan. (Figure 80)
2. Carefully remove ember bed by tilting the right side up
and lifting out toward the right side of the unit. (Figure
80)
Bottom View
ST918
Figure 80 Remove three (3) nuts securing ember bed in place.
ST935
Allen Wrench
CO105a
gas conversion
Pilot
1/28/00 djt
CO106a
DV360/580
Gas Conversion
Pilot2
1/28/00 djt
Remove Nut
Remove Nuts
ST918
remove nuts
6/07
CO105a
CO106a
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