ADC AD-200 Service Manual download pdf (Page 62)

2) Auxiliary Contact Block

The Auxiliary Contact Block is mounted on the side of the overload. Its function is to sense an

overload trip, thereby triggering a safety fault, which will disable the drying cycle. An “Overload

Fault” message will appear on the light emitting diode (L.E.D.) display on the Phase 7 microprocessor

controller (computer).

a) Auxiliary Contact Block Replacement

(1) Discontinue electrical power to the dryer.

(2) Remove the Thermal Magnetic Starter (TMS) from the din rail by pulling the tab on the

bottom of the contact block and lifting upward.

(3) Remove the two (2) wires going to the auxiliary contact block and label for correct

reinstallation.

(4) There are two (2) types of auxiliary contact blocks...one (1) with a screw and the other with

a clip...

To remove the style with the screw from the TMS simply remove the screw.

To remove the style with a clip simply push in the clip and remove.

(5) To install new auxiliary contact block, reverse above procedure (Step #4 thru Step #1).

3) Varistor (Metal Oxide Varistor [MOV])

The varistor - is used to suppress any inductive electrical spikes produced by the energizing and

collapsing of the coil voltage.

a) Varistor Replacement

(1) Discontinue electrical power to the dryer.

(2) Loosen the screws marked A1 and A2 on the contactor.

(3) Remove the varistor.

(4) Verify that no additional wires were inadvertently removed.

(5) Reverse procedure to install new varistor.

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 105 106

No comments

ADC AD-200 Service Manual Page 62