QUANTUM™ HD COMPRESSOR CONTROL PANEL
OPERATION
090.040-O (MAR 12)
Page 86
CONFIGURATION
Capacity Control - Capacity Modes
ACCESSING:
DESCRIPTION:
Use this screen to set the Capacity Control
Modes.
CAPACITY CONTROL MODES
[Status]
- A pull down menu is provided to se-
lect from the following:
•
Disabled
•
Enabled
[Control Point]
- A pull down menu is provided
to select from the following:
• Suction
Pressure
• Discharge
Pressure
• Economizer
Pressure
•
System Discharge Pressure
• Suction
Temperature
• Discharge
Temperature
•
Process/Brine Temperature Leaving
•
Process/Brine Temperature Entering
•
Auxiliary 1 thru 10
[Action]
• Forward
– As the Capacity Control
value drops below the capacity control
setpoint, these setpoints will protect
the compressor by decreasing the ca-
pacity, or if necessary shutting down
the compressor.
• Reverse
- As the Capacity Control value
rises above the capacity control set-
point, these setpoints will protect the
compressor by decreasing the capac-
ity, or if necessary shutting down the
compressor.
INPUT MODULE CAPACITY MODE SELECTION
This provides for selecting the Capacity Control
via the two input modules rather than the key-
pad or communications port. The mode that will
be selected can be derived from the following
matrix:
Mode
Module A
Module B
Mode 1
Off
Off
Mode 2
On
Off
Mode 3
Off
On
Mode 4
On
On
Capacity Control
Capacity Modes
