16
American Dryer Corp.
113345-9
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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, and 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.
Reversing basket (tumbler) dryers should never be operated
with less than a 36 lb (16 kg) load (dry weight), since the
load’s weight effects the basket (tumbler) coast time during
a direction reversal command. It is important that the basket
(tumbler) comes to a complete stop prior to starting in
opposite direction.
Microprocessor Models
Spin and dwell (stop) times are not adjustable in the Automatic
Mode and have been preprogrammed into the microprocessor
controller (computer) for 120-seconds spin time in the forward
direction, 120-seconds in the reverse direction and a
5-second dwell (stop) time.
Spin and dwell (stop) times are adjustable in the Manual
(timed) Mode.
Dual Timer Models
Both dwell (stop) time and the basket (tumbler) spin time are
adjustable.
Check to ensure that all setscrews (i.e., basket [tumbler] drive,
idler, etc.) are tight.
Preoperational Instructions ___________
The light emitting diode (L.E.D.) display reads “READY” (no
cycle in progress).
Press the letter on the keyboard (touch pad) corresponding
to the cycle desired (i.e., key “D”).
Note
“0-40” will require the “Start/Enter”
l
key to be
pressed after the number is selected in order to
accept the selection and start drying.
The dryer will then start. (I.E., blower, basket [tumbler], and
heat).
The L.E.D. display will read “MANUAL DRYING CYCLE D,
00:00 MIN REMAIN”.
Note
Press and hold the “Up Arrow” to view the basket
(tumbler) temperature at any time.
The dryer can be stopped at any time by pressing
the “Stop/Clear”
O
key, at this time the dryer will go into a
cycle pause. If the “Stop/Clear”
O
key is pressed again at
this point, the cycle that was in progress will be cancelled and
returned to the “READY” state.
Press and hold the “Down Arrow” to view the basket (tumbler)
RPM.
When the programmed drying time has expired, the Phase 7
non-coin microprocessor controller (computer) will proceed
into the Cool Down Cycle.
Once the Cool Down Cycle begins at the end of the heat
cycle, the L.E.D. display will read “COOL DOWN TEMP ___/
___ MINUTES REMAINING”. At the end of the heat cycle, the
dryer will shut off the heat and continue the fan and basket
(tumbler) until the Cool Down Time or temperature is reached.
Important
F o r m o r e d e t a i l e d i n f o r m a t i o n r e g a r d i n g t h e
microprocessor controller (computer) on your dryer,
refer to the microprocessor user’s manual included
with the dryer.
Dual Timer Dryers
•
Turn drying timer knob for a time of 20 minutes.
•
Select “High Temp.”
•
Push “Push to Start” switch.
•
To stop dryer, open the main door.
Spin and dwell (stop) times are adjustable at the reversing
timer.
Shutdown Instructions _________________
If the dryer is to be shutdown (taken out of service) for a
period of time, the following must be performed:
Discontinue power to the dryer either at the external disconnect
switch or the circuit breaker.
Discontinue the heat supply:
Gas Models – discontinue the gas supply.
•
Shut off external gas supply shutoff valve.
•
Shut off internal gas supply shutoff valve located in the
gas valve burner area.*
Steam Models – discontinue the steam supply.
•
Shut off external (location furnished) shutoff valve.
•
Shut off internal steam valves in the supply lines and the
return lines.
* For models where so equipped.
Summary of Contents for ML-55 Phase 7
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