AEC Econo-Cool Chillers - Manual (Page 67)

Page 66 AEC Water Temperature Control Units
I Index
Air Purge switch, 34
Alarm Silence button, 34
Alarms, 34
AT key, 33
AT LED, 32
Audible/visual general fault
alarm, 34
Automatic vent, 30
Auto-tuning the controller, 36
Available options, 9–10
Checking motor rotation
direction, 42
Cleaning and storage, 57
Closed circuit/direct injection
connections, 19
Communications, 37
Communications option list, 54
Controller display, 31
Controller factory setup, 34, 35
Controller internal switches, 35
Controller operation, 36
Cooling regulation, 30
Cooling water connections, 20
Copyright information, 2
Corrective maintenance, 44–46
Cutout switch, low pressure, 28
Deionized water applications, 19
Disclaimer information, 2
Display key, 33
Display readout for mode
settings, 48
Distilled water applications, 18
Down key, 33
Draining, 43
E5CK modes, 47
E5CK operating parameters, 46
E5CK security, 48
Electrical connections, 24, 54
Electrical wiring schematics, 26
Electricals, 30
Expansion tank, 20
External piping sizing
considerations, 16
Fahrenheit to Celsius, 36
General information
Available options, 9–10
Models covered, 8
Necessary documents, 7–8
Standard features, 9
Graphic panel buttons, 33
Heater contactor, 29
Heaters, 28
High-mobility piping
considerations, 18
Identifying controls and displays
Controller internal switches,
35
Identifying controls and features,
27–37
Alarms, 34
Auto-tuning the controller, 36
Communications, 37
Controller display, 31
Controller factory setup, 34,
35
Controller operation, 36
Fahrenheit to Celsius, 36
Graphic panel buttons, 33
Identifying mechanical
controls and features, 27–
31
Microprocessor controller, 31
Identifying mechanical controls
and features, 27–31
Incomplete shipment, 13
Incorrect shipment, 13
Installation information, 16–26
Cooling water connections,
20
Electrical connections, 24
External piping sizing
considerations, 16
High-mobility piping
considerations, 18
Location considerations, 16
Permanent piping
considerations, 17
Process approach
temperature
considerations, 16
Process water connections,
19
Process water
considerations, 18
System purge connections,
21
Location considerations, 16
Low pressure cutout switch, 28
Maintenance
Cleaning and storage, 57
Corrective maintenance, 44–
46
Draining, 43
Electrical connections, 54
Heaters, 46
Motor overload, 55
Periodic checks, 44
Pressure switch, 55
Preventive maintenance, 43
Pumps and seals, 44
Restoring the controller, 46–
54
Safety devices, 55, 54–57
Safety thermostat, 57
Solenoid valves, 46
MANU LED, 32
Microprocessor controller, 31
Models covered, 8
Necessary documents, 7–8
ON/OFF switch, 33
Operation, 40
Options, 9–10
OUT1 LED, 32
OUT2 LED, 32
Periodic checks, 44
Permanent piping
considerations, 17
Pipe sizes for ¾ hp to 7½ hp
units, 17
Pressure drops, 23
Pressure relief valve, 27
Pressure switch, 31
Preventive maintenance, 43
Process approach temperature
considerations, 16
Process temperature factory
setting, 50
Process water connections, 19
Process water considerations,
18
Pump curves
50 Hz pump curves, 23
60 Hz pump curves, 23
Pump starter, 29
Pumps, 28
Pumps and seals, 44
PV LED, 31
Quick Cool button, 34
Raw water treatment, 18
Restoring the controller, 46–54
Returns, 13
RMT LED, 32