Control - Johnson Controls FRICK QUANTUM HD Operation

090.040-O (MAR 12)
Page 110
ACCESSING:
DESCRIPTION: This screen will be available if Sequenc-
ing is enabled in Compressor confi guration. The screen
shown represents System 1. There are additionally a Sys-
tem 2 and a System 3 setup screen, which are not dis-
cussed further here, as all three screens show the same
layout, although they may get setup using different ca-
pacity modes. Use these screens to setup all of the nec-
essary operating parameters for performing compressor
sequencing. The information from these three screens will
be shown on the Sequencing Status screen.
SEQUENCE CONTROL
On the blue Sequence Order status bar, is an
Enable / Disable button. Use this button to set
the current condition of System 1 (2 or 3):
• Disabled - The compressors that are
listed on this screen will not run as part
of the sequencing scheme (System 1
will be ignored).
• Enabled - The compressors that are
listed on this screen will run when
called for as part of the sequencing
scheme (System 1 will be included).
The following pop-up menus and setpoint boxes
are shown here:
Setpoint - Use this setpoint box to set the
value that you wish all compressors within
this System to maintain.
QUANTUM™ HD COMPRESSOR CONTROL PANEL
OPERATION
CONFIGURATION
Sequencing - Control
Sequencing
System 1 Setup
Average Capacity Slide Position to Start
Next Compressor - If more than one com-
pressor is running and the Average Capacity
is greater than this setting, the next com-
pressor in line can be started, if needed.
Full Load Capacity Slide Position - This
setpoint represents the Capacity Slide Valve
Position at which this machine will be con-
sidered at full load capacity.
Full Load Drive Speed Position - This is the
speed value at which the compressor will be
considered at full capacity by speed.
Minimum Capacity Dead Band - This is the
dead band above and below the Minimum
Capacity % setpoints that the controller will
load or unload. If the Minimum Capacity % is
40% and the dead band is 1%, the controller
will unload above 41% and load below 39%
Capacity Slide.
Start Failure Reset Delay - This is the time
that needs to pass after a sequencing start
fails before the compressor is available to
be back in the sequence operation.
Slide Valve Failure Safety
• Disabled
• Enabled

Control