Regal 53 SC Owner's Manual page 320

At the operator's panel clean, set, and interval functions
can be programmed as follows:
1. To select an interval press "set" until the desired interval
is displayed. If no light is illuminated, the control will not
command a cleaning cycle.
2. To manually command a cleaning cycle press "clean"
or the red button at the operator's panel. This will trigger
a single cleaning cycle, and then return the control to the
selected time interval.
Note: When power is initially applied, a self-test routine will occur
during which all lights will illuminate alternately. Then all lights
will go out.
Note: The operator panel lights illuminate when the main 30 amp
breaker is turned off. This is a normal function and the system will
assume the previous setting once breaker power is activated.
Auxiliary Equipment Operation
SEA CHEST SELF-CLEANING SYSTEM TYPICAL LAYOUT
SEA CHEST SYSTEM OPERATOR'S PANEL
MANUAL START-
CLEAN CYCLE
59
3 AMP MEMORY
CIRCUIT BREAKER