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PRIMARY CONTROL OII 350S
SEQUENCE OF OPERATION
The Traeger OII 350S primary control is a
high-tech, state of the art computer. The
control performs the function of piloting the
system when the thermostat does not call for
heat. It conserves fuel consum
p
tion.
Power In
The computer board is protected by a 3-amp fuse. There
are many manufacturers of this fuse. Fuses are readily
available at your local hardware or auto parts store. i.e.
Napa Balkamp #782-1046 AGC 3.
When the wall thermostat circuit is closed, and calling fo
r
heat, the light indicator will remain dim as long as the
circuit is closed. When the thermostat is open (not calling
for heat) the light will blink from bright to dim every 15
seconds as
p
art of the countin
g
p
rocedure.
FUSE
RED LIGHT
INDICATOR
PILOT CYCLE TIME
SWITCH
COMBINATION FUNCTION
OF ON TIME AND CYCLE
The 0II350S primary control has 6 lead wires. A wiring colour
code is provided on back of each control. Black is line power.
White is neutral. Red is load and feeds the auger motor and
cup motor. Orange feeds the draft inducer. 2 yellows go to
the wall thermostat.
The On Time is subtracted by the Cycle Time
Example: With the On Time pre-set at 2 minutes and the
Cycle Time set at 16 minutes, the unit would come on (feed
corn) for 2 minutes and not feed corn for 14 minutes. This
gives you a complete cycle time of 16 minutes.
The cycle time switch controls the total cycle both on
and off, 8 or 16 minutes.
The On Time controls the amount of time the burner stays
active (fuel is fed). It operates in conjunction with the cycle
time and is pre-set in the control at 2 minutes
ON TIME (2MINUTES)
WIRING
POWER SWITCH
Controls the speed of the draft inducer on pilot or idle
mode. Normally set on Medium, but will vary with differing
chimney configurations.
Cuts power to burner but not blower fan system. Used to shut
furnace down.
PILOT DRAFT SWITCH
16