QUANTUM™ HD COMPRESSOR CONTROL PANEL
OPERATION
090.040-O (MAR 12)
Page 18
ferential - The Compressor is not able to
start. The Suction/Discharge differential
pressure is above the “Start Differential”
setpoint. A Start command is required
when in a Ready status.
Start Inhibit Permissive Start - The Com-
pressor is not able to start. The Permissive
Start input is off. A Start command is re-
quired when in a Ready status.
Start Inhibit Digital Auxiliaries - This will
set the Compressor Run Status to Starting
status and then transition to Running if the
Digital Auxiliary input is On before the end
of the delay time.
Power Fail Restart - The Compressor is not
able to start. Power Fail Restart is enabled
and delay timer has not timed out. Tis only
occurs in Compressor Auto Mode. A Start
command is required when in a Ready sta-
tus.
Start Inhibit Low Oil Pressure - This will
set the Compressor Run Status to Starting
status and then transition to Running when
the Oil Pressure is 10 PSI above the Low Oil
Pressure Shutdown setpoint. This is only
used with “Other Manufacturer” compres-
sor type.
Running - A Start command has already
been sent, and the Compressor is running.
Start Inhibit In Discharge Pressure Blow-
down - The Compressor is not able to start.
This is only used on RCSI systems.
Start Inhibit Separator Condensing
Compressor - Shows the present operating sta-
tus of the compressor and from what source it
has been initiated:
• Off
• Running
• Starting
• Stopping
• Stopping - High Capacity
• Stopping - Pumpdown
• Stopping - Cool Down Period
A drop down menu icon is provided to select
from the following Compressor controls options:
• Manual - A compressor manual start or
stop command was sent.
• Automatic - The compressor auto
command was sent. The compressor
starting and stopping is being con-
trolled from automatic cycling control
setpoints at the panel. The automatic
cycling control setpoints of the active
capacity control are used.
• Remote Comm - The compressor re-
mote communications command was
sent. The compressor starting and
stopping is through the serial Comm3
channel.
• Remote IO - The compressor remote
I/O command was sent.
• Remote Seq - The compressor remote
sequencing command was sent.
Note: If there is a shutdown in response to
a safety setting, a compressor in Remote or
Automatic mode is placed into Manual mode
requiring operator intervention.
Capacity Slide - Shows the current status of the
Capacity Slide as either Idle, Load or Unload -
along with the percentage. A drop down selec-
tion box is provided to select what source to use
to control the Capacity Slide Valve.
• Manual
• Automatic
• Remote Comm
• Remote IO
• Remote 4-20 Input
• Remote Seq
Volume Slide - Shows the current status of the
Volume Slide as either Idle, Increase or Decrease
- along with the percentage. A drop down selec-
tion box is provided to select what source to use
to control the Volume Slide Valve.
• Manual
• Automatic
Oil Pump - (If selected in Confi guration) – The
On or Off message is shown for the status of the
oil pump. The Manual or Auto message is shown
to indicate the position of the HAND-OFF-AUTO
switch. If dual pump control was enabled in Con-
fi guration, the lead pump (either Oil Pump 1 or
Oil Pump 2) is shown.
The lower half of the Compressor box shows three
columns of interactive buttons, which duplicate the
functions of the physical keypad buttons:
• Compressor
• Capacity
• Volume
NOTE: A forth set of buttons may be present if
a variable speed drive is selected, to increase or
decrease the motor speed.
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