McQuay AGZ045BS User Manual

58 AGZ 026B through 130B IOMM AGZ-5
Automatic Adjusted Ranges
The following are setpoints that will be limited based on the option selected.
Evaporator Leaving Water Temperature
Mode Range
Unit Mode = Cool
40 to 60
°F
Unit Mode = Cool w/Glycol
20 to 60
°F
Evaporator Freeze Temperature
Mode Range
Unit Mode = Cool
37 to 42
°F
Unit Mode = Cool w/Glycol,
Ice w/Glycol
18 to 42
°F
Low Evaporator Pressure Hold and Unload
Mode Range
Unit Mode = Cool 55 to 65 Psig
Unit Mode = Cool w/Glycol,
Ice w/Glycol
31 to 65 Psig
Low Ambient Lockout Temperature
VFD Range
VFD = N
35 – 60
°F
VFD = Y
-2 – 60
°F
Forced Fan 1,2,3
Number of Fans Range
4 1 – 2 fans
6 1 – 3 fans
8 1 – 4 fans
Shutdown Alarms
Shutdown alarms (also know as “Stop Alarms” or “Safeties”) execute rapid compressor
shutdown and require manual reset. They are also logged in the Alarm Log.
The following table identifies each equipment protection alarm, gives the condition
that causes the alarm to occur, and states the action taken because of the alarm. If the
alarm is auto-clearing, the reset condition is also shown. Otherwise, the alarm is
manually reset, requiring the operator to clear the alarm.

McQuay AGZ045BS Specifications

General

Brand	McQuay
Model	AGZ045BS
Category	Chiller
Language	English