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2424
Jefferson Direct Vent/Natural Vent Gas Heater
30004177
Fig. 41 Remove and replace injector orifices.
ST353a
injector orifice
replace
3/21/00 djt
90°
Left Burner Leg
Injector Orifices
ST353a
Complete the Assembly
• Open the swiveling latches (cams) on the top left
and right corners of the glass frame.
• Position the glass and frame against the firebox by
placing the bottom edge on the brackets on the bot-
tom face of the firebox.
• Swing the assembly against the firebox, and close
the latches firmly against the pins protruding from
the firebox top.
Install ON/OFF Switch
The switch assembly parts are found in the parts bag.
1. Attach switch assembly to left rear side of stove
shroud (when facing shroud) using two screws and
existing holes in shroud. (Fig. 42)
2. Run wires down back of stove, under bottom of rear
shroud to valve.
3. Attach wires to valve terminals. (Fig. 43)
PILOT
ADJ
TP
TH
TPTH
ST228
attach switch
wires to valve
12/99
ST228
Fig. 43 Attach switch wires to valve.
ST315
attach switch assy
1/31/00 djt
Switch As-
sembly
Screws
Existing
Holes
ST315
Fig. 42 Attach switch assembly to rear shroud.
Install the Stove Front
The front panel attaches to the stove by four (4) steel
tabs that engage with corresponding cast ribs on the
sides and bottom of the stove body. Position the front
about 3” down from the stove top and lift the plate to
engage the upper tabs behind the adjacent ribs on the
side. (Fig. 44) Then lower the plate into position, so the
lower tabs engage with the corresponding ribs at the
bottom. (Fig. 45)
When properly installed, the bottom of the stove front
cannot be pulled away from the sides without also lifting
it.
ST229
FDV28 attach Front
12/8/99 djt
3”
(76 mm)
Control
Door
Lower Tabs Engage
Ribs in bottom
Upper Tabs
ST229
Fig. 44 Install stove front.
ST279
front plate top vie
w
1/19/00 djt
Side Rib
Front Tab
Stove Side
Stove Front
ST279
Fig. 45 Engage with side ribs.
Thermostat Connection (optional)
Use only a thermostat rated for 500 - 750 millivolts.
Check the table below for the appropriate gauge ther-
mostat wire to use for the length of lead required in your
installation.
1. Install the wall thermostat in the desired location and
run the wires to the stove location. Terminate these
leads with 1/4” female connectors.
2. Connect the thermostat wires to the valve. (Fig. 43)
Thermostat
Wire / Gauge Maximum Run
18 20 feet
16 20 - 40 feet
14 up to 60 feet