Vermont Castings Jefferson Direct Vent/Natural Vent Gas Heater
ST229a
Fig. 37 Remove stove front.
3.Pull the top edge of the glass and frame assembly away from the firebox, and lift it off its supports on the bottom of the firebox face. Place the assembly out of the way on a flat, padded surface such as a counter protected by a towel.
4.Take the logset out of the firebox if previously in- stalled.
5.Remove the rear log bracket by unfastening the screw. (Fig. 38)
6.Remove the right and left log bracket assembly by unfastening the two screws which hold the burner in place. (Fig. 38)
Remove Screws | Rear Log Bracket | |
|
| Pilot |
| Left & Right Log | ST350 |
| Bracket Assembly | |
|
| |
Fig. 38 Remove rear log bracket and left and right log bracket assembly.
7.Hold the burner at the right hand side and lift to clear the right burner leg. Then pull to the right to clear the injectors on the left hand side.
8.The air shutter is located on the bottom of the burner to the left. (Fig. 39) Unfasten the two nuts holding the shutter in place. The shutter may be adjusted between the factory adjusted 1/2Ó to fully open. Reassemble the shutter to allow the rear injector air
inlet to close from a minimum 1/2Ó opening to fully open. (Fig. 40) You may have to try more than once to find the correct air shutter opening for best results depending on your altitude.
Air Shutter |
(Original Position) |
See Table 1 |
Burner |
ST352 |
Fig. 39 Air shutter in original |
Front Injector |
|
Air Inlet | Air Shutter |
| (May be adjusted up to fully open) |
| Burner |
| Rear Injector Air Inlet |
ST351 |
|
Fig. 40 Air shutter adjusted.
9.Refasten the two nuts and assemble the burner into the unit by sliding the burner in at an angle with the left side lower than the right side. Slide the left side onto the injectors. Lower the right hand side down into 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. 41) This keeps the orifices aligned with tubes on the inside of the burner. Failure to do so could affect the flame appearance and perfor- mance of the unit.
10.Refasten the right and left log bracket assembly. 11.Refasten the rear log bracket.
12.Replace logs.
13.Replace glass and stove front.
Follow lighting instructions on page 26. Check flame color appearance. NOTE: Allow stove to burn for at least 1/2 hour to establish full flame color.
Should color need further adjustment, repeat steps 1 - 12 for air shutter adjustment.
22 | 20002191 |
