Cooler Operation
(cont.)
ServoSeal and Drain Valve Operation
Contour and Profiler Coolers have a new and unique mechanism, to drain and empty
the Cooler's tank and simultaneously close off the duct (Contours only), at the end of
use.
The ServoSeal is a set of adjustable louvers constructed in the Contour's base, which
are driven closed and prevent heat loss from the building, when the unit is not in use.
An electric motor drives a linkage that opens and closes the louvers.
This motor has another lever that operates at the same time, to raise and lower a
flexible drain outlet tube.
When the ServoSeal closes the dropper duct, the drain outlet tube is lowered to a
position that all the tank water is naturally drained from the Cooler. The Profiler cooler
only has the Drain valve connected to the Servo motor.
The motor that drives both the ServoSeal and drain linkages, is 240 Volts controlled
through a geared cam shaft and switch.
The motor is powered to open on one switch circuit, and powered to close on
another.
The cam shaft causes the switch contacts to open, stopping the motor and
mechanism at the correct position, whether the motor is to be driven forward or
reverse.
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