Thoreson-McCosh Industrial Dryer TD-2000

Locate the sensor manifold assembly

Remove sensor and insert from manifold

Remove the insert from the sensor

Ensure the molecular sieve sample is suspected to need replacement.

Check for large percentage of broken pellets, dust, contamination, or discoloration.

Set oven temperature to 600°F / 316°C.

Regenerate desiccant in oven for 2 hours.

Place desiccant into an air tight jar and allow it to cool to room temperature for at least 12 hours.

Testing Desiccant Effectiveness

Pour 30ml of water into a small glass.

Ensure the unit is powered off before starting the check

Verify that the Blower Rotation Alarm is installed on the unit

Is the Blower Rotation Alarm activated?

Is the alarm light on and message displayed on the digital readout?

Is the process blower motor rotating clockwise?

If the blower rotation is incorrect, reverse any two of the three incoming power leads to the terminal block

Check that all components are functioning properly

Enter the amp draw of blower motors

Refer to wiring diagram, insert, and individual motor nameplate for specifications

Ensure the unit is powered off before inspection

Verify that the Blower Rotation Alarm is present on the unit

Is the Blower Rotation Alarm activated?

Is the blower motor rotating clockwise?

Power off the unit before making any corrections

Reverse any two of the three incoming power leads to the terminal block