Thoreson-McCosh Industrial Dryer TD-1000

Ensure the unit is powered off before starting the procedure.

Verify that the Blower Rotation Alarm is present on the unit.

Is the Blower Rotation Alarm activated?

If no alarm is present, 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.

Do not swap the power leads at the blower itself.

Read instructions completely before attempting to remove the beds.

Set key switch to 'Adjust Setpoints'

Follow the procedure in Section 8.2 'Forcing a Bed Index'

Remove the 4CR (bed shift relay) from its socket

Place a 1” block inside of the upper and lower air cylinders

Remove the compressed air from the unit

Ensure bed seals are far enough away from the beds to slide them out

Is the process dew point within the acceptable range?

Ensure power is removed from the unit

Confirm that the resistance of the sensor is not measured

Locate the sensor manifold assembly

Remove sensor and insert from manifold

Remove the insert from the sensor and place it onto the new sensor

Reassemble the unit by reversing steps 1-5

Check that all components are in place

Enter the amp draw of blower motors

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