ADC AD-464 service manual Blower Squirrel Cage Fan Electrical Components

F.BLOWER (Squirrel Cage Fan) ELECTRICAL COMPONENTS

1.Blower (Squirrel Cage Fan) Controls and Overloads

a)Thermal Magnetic Starter (TMS) Description

The thermal magnetic starter (TMS) is used as a safety device to manually disconnect the motor, thereby protecting the motor from being damaged in a locked rotor condition. The overload has a dial setting on the face of the device. To set the overload, refer to your specific electrical diagram. The overload is specifically designed for motor applications. It has a current curve built into it so the initial high current draw by the motor will not trip the overload. On the face of the overload there are two (2) push buttons, a "START" (Black or Tan-1) and a "STOP" (Red-0). The overload must be in the "START" mode for the motor to run.

b)Thermal Magnetic Starter (TMS) Replacement

1)Discontinue electrical service to the dryer.

2)Mark L1, L2, L3 and T1, T2, T3 on the wires to the thermal magnetic starter (TMS) for correct reinstallation.

3)Set the amp (amphere) rating on the TMS according to the electrical schematic supplied with your dryer.

4)To remove the thermal magnetic starter, pull the tab on the bottom of the TMS, and lift upward.

5)To install new thermal magnetic starter (TMS), reverse Step # 4 thru Step #2.

6)Reestablish electrical service to the dryer.

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