AEC Econo-Cool Chillers - Manual (Page 8)

AEC Water Temperature Control Units Page 7
1 General Information
1-1 Introduction
AEC water temperature control units are reliable, accurate, and easy-to-use process
temperature control units. They are self-contained, portable, and shipped ready to use.
The Economical Series water temperature control unit is designed to circulate water
through your process and to precisely, automatically, and reliably maintain it at a
specified temperature. Standard unit operating range is from 0ºF (-17ºC) to 250°F
(121°C), or up to 300°F (149°C) as an option. The unit is suited for use with city water,
water from portable or central chillers or towers, or well water.
These units are designed for rapid recirculation of a relatively small amount of water to
provide close and uniform temperature relation between To Process and From Process
lines. This performance, of course, depends on the configuration of your process and
any restrictions within the mold. The recirculation, combined with the large immersion
heater and cooling capability, gives fast and accurate response to bring the water up to
temperature or to changes in the settings when needed.
The ECU Series water temperature control unit is a self-contained system consisting of
a centrifugal pump, electric immersion heater, cool/vent solenoid valve, and electrical
control, including a PID microprocessor controller and thermocouple. It is designed for
use in process temperature control applications using water or a water/glycol mix. Any
other use or fluid is prohibited.
Some standard safety devices include a mechanical overtemperature safety thermostat,
a pressure relief valve, motor overload protection, a low pressure cutout switch, branch
fusing, and non-fused lockable rotary disconnect.
A properly installed, operated, and maintained AEC system provides years of reliable
operation. Please read and follow the instructions in this manual to get the most
satisfaction from your AEC system.