Controller Operation; (With Optional Alarm Horn & Reset Button) - AEC AD Series Operation And Installation Manual

6-2

Controller Operation

(With Optional Alarm Horn & Reset Button)
WARNING!
Page 46
1.) Turn the disconnect on the control panel to the ON position.
Power is applied to the voltage line fuses, line side of the
control power switch and the temperature controller.
2.) Turn the control power switch to the ON position. Power is
applied to the programmable relay and dew point controller.
The valve will move to the start position as follows:
2-1. The valve motor rotates until the cam switch makes 2
transitions.
2-2. If the cam switch does not make a transition within 10
seconds, a valve motor fault is generated. "VALVE
MTR" is displayed on the relay screen, the alarm horn
and light are activated. The valve motor, heaters, and
blower shut off. Pressing the ALARM RESET
pushbutton will deactivate the alarm horn and light.
Cycle control power to restart the dryer.
Note: The relay screen which contains the Alarm Display Messages is
located inside the controller enclosure. For a list of Alarm Display
Messages, see Section 6-3 on Page 49.
Do not attempt to check the Alarms on the Controller
located within the unit enclosure unless you are a qualified
2-3. The valve will normally complete one full cycle
(revolution).
2-3-1
2-3-2
2-3-3
3.) Once the control power is on and no fault conditions exist,
turning the Off-On-Start switch to the START position will
start the dryer as follows:
3-1. The process heater is turned on and controlled by the
E5CN controller.
electrician!
The bed in process at power-down will
remain in process.
The bed in regeneration at power-down will
remain in regeneration.
The regeneration timing cycle will restart
from the beginning.
AD Series Dehumidifying Dryers