Vermont Castings RADVT(CS)CBSB Installation And Operating Instructions Manual page 40

Radiance Direct Vent Gas Heater
®
RADVTCS Series Models
1. Using the TORX T20 bit remove and discard the three
(3) pressure regulator mounting screws from the old
pressure regulator assembly. (Fig. 77)
Fig. 77 Remove mounting screws from old pressure regulator
assembly. Replace step motor with new conversion step motor.
ST1093
2. Insure the rubber gasket (D) is properly positioned
install new step motor
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) (Fig. 77)
3. Install the identification label (F) supplied with the stepper
motor to the valve body where it can easily be seen.
(Fig. 77)
4. Make step motor and mV valve electrical connec-
tions.
5. Regulator conversion complete.
6. Test for Leaks
Pilot Orifice Conversion
1. Locate pilot. (Fig. 78)
Fig. 78 Locate pilot.
ST350
4040
Jefferson
air shutter adj
3/20/00 djt
2. Replace pilot orifice.
3. Remove pilot hood by lifting up. (Fig. 79) Do not remove
the snap ring to remove the pilot hood. NOTE: It is not
necessary to remove the pilot tube for conversion.
4. Remove pilot orifice with Allen wrench. (Fig. 80)
Fig. 79 Remove pilot hood.
Index Tab
ST1093
Snap Ring
CO106a
Fig. 80 Remove pilot orifice.
5. Install the conversion 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. (Fig. 81)
Pilot
ST918
Fig. 81 Remove three (3) nuts securing ember bed in place.
ST916
Pilot Hood
Pilot
Bracket
CO105a
gas conversion
Pilot
1/28/00 djt
CO106a
DV360/580
Gas Conversion
Pilot2
1/28/00 djt
Remove Nut
Bottom View
ST918
remove nuts
6/07
CO105a
Allen Wrench
Remove Nuts
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