Century Jefferson User Manual
Page 29
29
Jefferson Direct Vent /Natural Vent Gas Heater
30004177
•
Remove pilot orifice with needlenose pliers. (Fig.
57) NOTE: Use a wrench to hold pilot tube in
place while removing the orifice.
•
Install the conversion orifice.
•
Reinstall pilot hood and tighten until mark on pilot
hood aligns withmark on pilot bracket.
14. Remove injector orifices from left burner leg using
1/2” wrench. (Fig. 58)
15. Install conversion orifices. (Refer to Table 2)
NOTE: Be sure burner leg remains at a 90° angle to
firebox base after conversion.
CO105a
gas conversion
Pilot
1/28/00 djt
Pilot Hood
Pilot
Bracket
CO105a
Fig. 54 Remove pilot hood.
CO106a
DV360/580
Gas Conversion
Pilot2
1/28/00 djt
Index Tab
Snap Ring
Allen Wrench
CO106a
Fig. 55 Remove pilot orifice.
CO105
Gas Conversion
Pilot
2/15/99 djt
Pilot Hood
Index
Marks
Pilot Bracket
CO105
Fig. 56 Remove pilot hood. (Your pilot may have a different
appearance.)
CO106a
Gas Conversion
Pilot (Vermont)
7/19/99 djt
Pilot
Orifice
CO106b
Fig. 57 Remove pilot orifice.
16. Replace burner. Slide the burner in at an angle
with left side lower than the right side. slide the left
side onto the injectors, making sure the burner leg
remains at a 90° angle to the base. Lower the right
hand side down in to place. Make sure the burner is
as far left as possible and the injector shoulders are
inside the burner.
NOTE: It is very critical to keep the left burner leg,
which holds the injectors, at a 90° angle to the base.
(Fig. 58) This keeps the orifices aligned with the
tubes inside the burner. Failure to do so could affect
the flame appearance and performance of the unit.
17. Place conversion label on valve
18. Reinstall the irght and left log bracket assembly.
19. Reinstall rear log bracket.
20. Replace the logs.
21. Replace glass and stove front.
Conversion is complete.
Fig. 58 Remove and replace injector orifices.
ST353a
injector orifice
replace
3/21/00 djt
90°
Left Burner Leg
Injector Orifices
ST353a
Conversion to LP
Input (BTU/h)
Kit #
Front
Part #
Rear
Part #
Minimum Maximum
30004180 #69 / .029” 30000513 #54 / .055” 20000130
20,000
28,000
Table 2. Injector Orifice Size Matrix