Johnson Controls FRICK QUANTUM LX Operation page 36

090.022-O (MAY 12)
Page 36
ing control settings will be active:
• [Port Value] – If the Economizer is On and
the Pressure Input selection is not Disabled,
this setpoint is used in calculating the Vol-
ume Ratio. A value of 1.6 is used for RXF
models, and a value of 1.4 is used for RWF
models.
[Pressure Input]
•
• Disabled
• Fixed Pressure Setpoint – If this is
selected, then this setpoint is used to
calculate the Volume Ratio.
• Economizer Analog Input – If this is
selected, then this Input value will be
used in calculating the Volume Ratio.
Balance Piston – This is a digital output.
• [Balance Piston]
• Disabled – Output is off.
• Enabled – When Enabled, and if the
compressor is running, the output is
controlled by comparing the Slide Valve
positions to the On and Off setpoints
• [Ignore Delay] – The length of time that the
Balance Piston safety checks are not per-
formed.
• [Fail Delay] –Delay Period for the Balance
Piston safety checks.
QUANTUM™ LX COMPRESSOR CONTROL PANEL
OPERATION
• [Oil Log]
• Disabled – Oil Log is disabled.
• Enabled – If for the Oil Log Delay set-
point period, the oil pump has been on
and the compressor is Off or Starting
without going into Running, an Oil Log
shutdown will occur.
• [Oil Pump Unload Assist] - When this op-
tion is Enabled, it will assist in unloading the
Slide Valve when a Full Time or Demand
pump is selected. It allows the pump output
to energize when starting the compressor, if
the Slide Valve position is above the "High-
est Capacity to Permit Starting" setpoint.
• Disabled – Oil Pump Unload Assist is
disabled.
• Enabled – Oil Pump Unload Assist is
enabled.
• [Main Oil Injection]
• Is Above (Setpoint) - The Main Oil In-
jection output will energize when the
Discharge Temperature exceeds this
setpoint.
• For (Delay) – Once the Main Oil Injec-
tion output has been energized by the
above setpoint, it will remain energized
for this amount of time.