Thoreson-McCosh Industrial Dryer TD-12

Check that all components are functioning properly

Record the amp draw of blower motors

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

Ensure the unit is powered off before starting the procedure.

Verify that the Blower Rotation Alarm is installed on the dryer.

Blower Motor Rotation Verification

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.

Locate the sensor manifold assembly

Remove sensor and insert from manifold

Remove the insert from the sensor

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 displaying a message on the digital readout?

Manual Rotation Check (if no alarm)

Remove the side panel to access the process blower motor

Is the process blower motor rotating clockwise?