www.DaikinApplied.com 81 IOM 1322 • WATER-COOLED SCROLL COMPRESSOR
This screen can be accessed either through the SET OTHER
menu or by simply pressing the ENTER key while on one of
the SET screens. The controller will automatically go from the
screen with the setting change to this screen. After the correct
password has been entered, the controller will automatically
return to the original set screen.
Once a password has been entered, it remains valid for 15
minutes after the last key-press.
Set Compressor Setpoints
SET COMP SPs (1)
This menu sets the anti-recycle timers. Stop-Start is the time
required before starting a compressor after it has stopped.
Start-Start is the time required before starting a compressor
after the last time it has started.
It is recommended that the default values of 5 minutes and 15
minutes not be changed.
SET COMP SPs (2)
InterStgUp =XXXsec
InterStgDown= XXsec
Clear Cycle Tmr = NO
InterStageUp is the time delay since the last stage change
before a compressor can stage on, default is 120 sec.
InterStageDn is the time delay since the last stage change
before a compressor can stage o normally (not by an alarm).
Default is 30 sec. It is recommended that these settings not be
changed.
# of Compressors = 4
SET COMP SPs (3)
Comp 1 = Enable
Comp 3 = Enable
# of Compressors = 6
SET COMP SPs (3)
Comp 1 = Enable
Comp 3 = Enable
Comp 5 = Enable
# of Compressors = 4
SET COMP SPs (4)
Comp 2 = Enable
Comp 4 = Enable
# of Compressors = 6
SET COMP SPs (4)
Comp 2 = Enable
Comp 4 = Enable
Comp 6 = Enable
Enable screens #3 and #4 require the manager password to
change.
SET COMP SPs (5)
Expansion Valve
Type = Thermal
SET COMP SPs (5)
Expansion Valve
Type = Electronic
MaxOpPress=XXX.X psi
SET COMP SPs (6)
Cir 1 EXV
EXV Control = Auto
Manual EXV Pos=XXX.X
SET COMP SPs (7)
Cir 2 EXV
EXV Control = Auto
Manual EXV Pos=XXX.X
SET COMP SPs (8)
SuperheatTarg= XX.X
SET ALARM LIMITS
SET ALARM LMTS (1)
Low EVAP Pressure
Hold=XXXpsi
Unload=XXXpsi
The Hold and Unload have the same default value of 59 psi. If
two compressors are running, the LowEvPrUnld is in eect and
the lag compressor will be shut o to unload the unit. If one
compressor is running, the LowEvPrHold is in eect and the
lag compressor is prevented from starting, thereby holding the
unit capacity
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