American Dryer Corp MDG-75 guide

3.Make a complete operational check of ALL safety related circuits:

a.Door Switch(es)

b.Hi-Limit thermostats

c.Sail switch - Gas Models

NOTE: To check for proper sail switch operation (for Gas Models), open the main door and while holding main door switch plunger in, start dryer. The dryer should start but the heat circuit should not be activated (on). If the heat system is activated, the sail switch is improperly adjusted and must be adjusted by bending the actuator arm of the sail switch toward the burner box. If the actuator arm is bent too far toward the burner box of the dryer, the dryer may not have heat when needed. After any adjustment to the sail switch, the above procedure must be repeated to verify proper operation of the sail switch.

4.The dryer should be operated through one (1) complete cycle to assure that no further adjustments are necessary and that ALL components are functioning properly.

IMPORTANT: The dryer basket (tumbler) is treated with a protective coating. The manufacturer suggests tumbling old clothes or material in the basket (tumbler), using a mild detergent to remove the protective coating.

5.Make a complete operational check of ALL operating controls.

a. For microprocessor model check controller (computer) programs/selections...

1)Each microprocessor controller (computer) has been pre-programmed by the factory with the most commonly used parameter (program) selections. If computer program changes are required, refer to the computer programming manual which was shipped with the dryer.

6.Check the electric service phase sequence (3-phase [3ø] models only). While the dryer is operating, check to see if the blower wheel (impellor and fan) is rotating in the proper direction. Looking from the front, the blower wheel (impellor and fan) should spin in the clockwise (CW) direction. If it is, the phasing is correct. If the phasing is incorrect, reverse two (2) of the three (3) leads at connections L1, L2, L3 of the power supply to the dryer.

IMPORTANT: Iftheblowerwheel (impellor andfan)isrotatinginthewrongdirection, this will notonly drastically reduce drying efficiency, but it can also cause premature component failure.