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 consumption.

FUSE

RED LIGHT

INDICATOR

ON TIME (2MINUTES)

PILOT CYCLE TIME SWITCH

COMBINATION FUNCTION OF ON TIME AND CYCLE

WIRING

POWER SWITCH

PILOT DRAFT SWITCH

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 for 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 part of the counting procedure.

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

The cycle time switch controls the total cycle both on and off, 8 or 16 minutes.

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 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.

Cuts power to burner but not blower fan system. Used to shut furnace down.

Controls the speed of the draft inducer on pilot or idle mode. Normally set on Medium, but will vary with differing chimney configurations.

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