AEC Econo-Cool Chillers - Manual (Page 21)

Page 20 AEC Water Temperature Control Units
Deionized Water
Stainless steel (316 SS minimum) or PVC plastic components must be used with
deionized water. We recommends stainless steel because of the temperature constraints
with plastic.
3-7 Making Process Water Connections
Direct Injection
On the back of each unit, the connections are labeled appropriately. For Direct Injection
units connect the
TO PROCESS hookup to the
entrance of the process and the FROM PROCESS hookup to
the exit of the process. Connect the COOLING WATER
IN to your plant water supply. Connect the COOLING WATER OUT line to an open
drain, or to the return line of
your central water system.
Make sure you carefully select the connecting lines and connectors between the
temperature control unit and the process to suit the needs and requirements of
your application.
If your unit has a maximum operating temperature of 250ºF (121ºC), the
connecting lines and connectors should have a service rating of at least 250ºF
(121ºC) and 150 psig (1,034.25 kPa/10.34 bars). If it has a maximum temperature
of 300ºF (149ºC), the lines and connectors should have a service rating of at least
300ºF (149ºC) and 150 psig (1,034.25 kPa/10.34 bars).
TO PROCESS — 1½” NPT
This is the outlet for the tempered water leading to the process being controlled.
FROM PROCESS — 1½” NPT
Water from the process re-enters Economical Series system to be tempered and re-
circulated back into the process.