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15, 30, & 60 cfm Compact Dryers 20
Chapter 4: Operation
4-1 Controller Description and Operation
Identifying Control Panel Indicator Lights and Switches for the Standard
Controller
Switches
Main Power. This switch allows the dryer to receive power from the main power supply (3
phase only).
Dryer Control ON/OFF Switch. This switch energizes or de-energizes control power to the
indicator panel and starts the dryer. (The controller cannot be energized without the dryer
running.)
Indicator Lights
Alarm Light. This feature warns the operator of a high bed safety temperature, a
regeneration heater fault, or a blower failure.
Power On. This light illuminates when the main power switch is on telling the user the dryer
is energized.
Dryer Operating: Indicates the process air blower is on.
Figure 5: Dryer Control Panels
Standard Controller – Standard Single Phase Control Panel shown with Optional Dew Point Monitor