•Remove pilot orifice with allen wrench. (Fig. 32)
•Install the conversion orifice.
•Reinstall pilot hood. Be sure to align hood with index tab.
Pilot Hood |
Pilot |
Bracket |
CO105a |
Fig. 31 Remove pilot hood.
Index Tab | Allen Wrench |
| |
Snap Ring |
|
CO106a |
|
Fig. 32 Remove pilot orifice.
16.Adjust air shutter on the burner. The air shutter is located on the bottom of the burner on the left. (Fig. 33) Loosen the two nuts holding the shutter in place. On natural gas units, the shutter is shipped fully closed. To convert to LP, reset the shutter as speci- fied in Table 2. (Fig. 34) On propane unit the shutter is set at 1/8” or 3/8” opening depending on rating plate serial number. To convert to natural gas, the shutter should set to fully closed. Refasten the two nuts.
Dutchwest Natural Vent Gas Heater
1/8" | Air Shutter |
| (LP Position) |
| 3/8" |
Configuration for |
|
Stove with Serial #’s |
|
up to #5483 | Air Shutter |
| (LP Position) |
| Configuration for Stoves with Serial |
ST726 | #’s Starting at #5484 |
Fig. 34 LP air shutter settings.
Left Burner Leg |
Injector Orifices |
90° |
ST353a
Fig. 35 Remove and replace injector orifices.
NOTE: Be sure burner leg remains at a 90° angle to firebox base after conversion.
17.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° angel to the base. (Fig. 35) This keeps the orifices aligned with the
Rear Injec- tor Air Inlet - Covered
Configuration for Stove with Serial #’s up to #5250
ST718
Front Injector Air Inlet
Air Shutter
Burner
Air Shutter
Configuration for Stoves with Serial #’s Starting at 5251
tubes inside burner. Failure to do so could affect the flame appearance and performance of the unit.
18.Place conversion label on valve.
19.Reinstall the right and left log bracket assembly.
20.Replace logs.
21.Replace glass and stove front.
22.Check manifold pressure.
Conversion is complete.
Fig. 33 Natural gas air shutter setting.
30002008 | 17 |
