Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
Pilot Hood |
Pilot |
Bracket |
CO105a |
Fig. 54 Remove pilot hood. |
Index Tab | Allen Wrench |
| |
Snap Ring |
|
CO106a |
|
Fig. 55 Remove pilot orifice. |
|
Pilot Hood
Index
Marks
Pilot Bracket
CO105
Fig. 56 Remove pilot hood.
•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 with mark on pilot bracket.
14.Remove injector orifices from left burner leg using 1/ 2Ó 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.
| 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 burner. Failure to do so could affect the flame appearance and performance of the unit.
19.Place conversion label on valve.
20.Reinstall the right and left log bracket assembly. 21.Reinstall the rear log bracket.
22.Replace logs.
23.Replace glass and stove front. Conversion is complete.
Left Burner Leg |
Injector Orifices |
90° |
ST353a
Fig. 58 Remove and replace injector orifices.
Table 2. Injector Orifice Size Matrix
| Conversion to Natural Gas | Input (BTU/h) | ||||||
Kit # | Front | Part # | Rear |
| Part # | Minimum | Maxi,mum | |
#54 / .055Ó | 20000130 |
| #44 / .086Ó | 30000334 | 19,000 | 28,000 | ||
|
| Conversion to LP |
|
| Input (BTU/h) | |||
Kit # | Front | Part # |
| Rear |
| Part # | Minimum | Maximum |
#69 / .029Ó | 30000513 |
| #54 / .055Ó |
| 20000130 | 20,000 | 28,000 | |
20002191 | 29 |
