(5)To install the new auxiliary contact block, reverse Step #4 thru Step #2.
(6)Reestablish electrical service to the dryer.
(3)Varistor (Metal Oxide Varistor [MOV])
The metal oxide varistor (MOV) is used to suppress any inductive electrical spikes produced by the energizing and collapsing of coil voltage.
(a)Varistor (Metal Oxide Varistor [MOV]) Replacement ((1)) Discontinue electrical service to the dryer.
((2)) Loosen the screws marked A1 and A2 on the contactor.
((3)) Verify that no additional wires were inadvertently removed.
((4)) To install the new metal oxide varistor (MOV), reverse Step #3 thru Step #1.
j.Burner Door Switch
The burner door switch is a part of the dryer's safety circuit. If at any time during a drying cycle the burner doors are open, the Programmable Logic Controller (PLC) Input #9 will go off, shutting the dryer down and displaying "DOOR OPEN." (Verify that the burner door switches are not out of adjustment.)
a)Burner Door Switch Adjustment
1)With burner doors closed, verify if PLC (Programmable Logic Controller) Input #9 is off.
2)Loosen the
NOTE: Adjust one switch at a time.
3)Adjust the burner door switch to the outside of the dryer and tighten the
head machine bolts.
4) Close the burner doors and verify if PLC Input #9 is on. If PLC Input #9 is off, adjust the other burner door switch.
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