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113231-4 www.amdry.com 31
TIMING LEGEND
SPIN TIME
Adjustment Position Number 1 2 3 4 5
Time in Seconds* 30 60 90 120 150
DWELL (STOP) TIME
Adjustment Position Number 1 2 3 4 5
Time in Seconds* 5 6.3 7.6 8.9 10.2
* Values shown are +/- 1-second.
8. Make a complete operational check of ALL operating controls.
For microprocessor model check controller (computer) programs/selections: each microprocessor controller
(computer) has been preprogrammed 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.
9. Check the electric service phase sequence (3-phase [3ø] models only). While the dryer is operating, check
to see if the blower wheel (impellor/fan) is rotating in the proper direction. Looking from the front, the
blower wheel (impellor/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: If the blower wheel (impellor/fan) is rotating in the wrong direction, it will drastically
reduce drying efficiency and it can also cause premature component failure.
10. Reversing basket (tumbler) dryers should never be operated with less than a 50 lb (22.67 kg) load (dry
weight), since the load’s weight affects basket (tumbler) coast time during a direction reversal command.
It is important that the basket (tumbler) come to a complete stop prior to starting in opposite direction.
a. Microprocessor Models
1) Spin and dwell (stop) times
are not adjustable in the Automatic Mode and have been preprogrammed
into the microprocessor controller (computer) for 150-seconds spin time in forward direction,
120-seconds in the reverse direction and a 5-second dwell (stop) time.
2) Spin and dwell (stop) times are adjustable in the Manual (timed) Mode.
b. Dual Timer Models
Timer models have an electronic reversing timer in the electrical service box, which is located in the
upper right front area of the dryer.
Both the Dwell (stop) Time and the basket (tumbler) Spin Time are adjustable by mode selection
switches located on the electronic timer (as noted in the illustration below).
11. Check to ensure that
ALL setscrews (i.e., basket [tumbler] drive, idler, etc.) are tight.