21
Oxford Direct Vent / Natural Vent Gas Heater
30005123
In the U.S.;
Gas connection should be made in accor-
dance with current National Fuel Gas Code, ANSI Z223.1/
NFPA 54. Since some municipalities have additional local
codes, be sure to consult your local authority.
In canada;
consult the local authority and CSA-B149.1
installation code.
Always check for gas leaks with a mild soap
and water solution. Do not use an open flame
for leak testing.
Light the pilot according to the directions on Page 25, be-
fore going to the next step.
Burner Information
The appliance must only use the gas specified on the rat-
ing plate, unless converted using a Fuel Conversion Kit.
To convert from LP to Natural Gas use Kit #30005155. To
convert from Natural Gas to LP use Kit #30005154.
Conversion instructions are provided with each kit and
beginning on Page 27 in this manual.
Air Shutter Adjustment Instructions
To adjust the air shutter, the following procedures should
be followed:
1. Remove stove front. Lift stove front up and then swing
bottom out and away to disengage from the stove
body. (Fig. 36)
This appliance should be connected to the gas
supply only by a qualified gas service technician.
Follow all local codes.
There must be a gas shut-off between the stove
and the supply.
In order to connect Natural Gas,
use a fitting with 3/8”
NPT nipple on the valve side and 1/2” natural gas supply
line with an input of 28,000 BTUs at a manifold pressure
of 3.5” and minimum inlet supply for adjustment of 5.5”
w.c.
In order to connect propane,
use a fitting with 3/8” NPT
nipple on the valve side and 1/2” propane gas supply line
with an input of 28,000 BTUs at a manifold pressure of
10.0” and minimum inlet supply for adjustment of 11.0”
w.c.
Air Shutter Adjustment
The Oxford is shipped from the factory with the air shut-
ter adjusted to the minimum allowed opening. Refer to
Table 1. Based on the altitude where the stove is located,
a shutter adjustment is acceptable to provide a mixed bal-
ance of flame color/glow. To adjust the shutter opening,
follow the steps below.
NOTE:
The air shutter may only be adjusted to a more
open position. The factory setting is the minimum allow-
able air shutter opening. (Figs. 38 & 39)
Table 1. Air Shutter Adjustment
Minimum rear injector inlet openings.
Model
Natural Gas
Lp
Direct Vent
1/2”
1/2”
Natural Vent
1/2”
1”
ST1125
remove front
ST1125
Fig. 36
Remove stove front.
2. Swing open the swiveling latches at the top left and
right corners of the glass frame. (Fig. 59, Page 31)
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. 37)
6. Remove the right and left log bracket assembly by
unfastening the two screws which hold the burner in
place. (Fig. 37)
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.
ST350
Jefferson
air shutter adj
3/20/00 djt
Remove Screws
Rear Log Bracket
Pilot
Left & Right Log
Bracket Assembly
ST768
Fig. 37
Remove rear log bracket and left and right log bracket
assembly.
