FORM 160.77-O2
ISSUE DATE: 11/15/2011
JOHNSON CONTROLS
74
SECTION 3 - YKEP CONTROL PANEL OPERATION
PROGRAMMABLE
PC-111 Low Suction Override
Access Level Required: OPERATOR
SP
Allows the user to program the High Discharge Over-
ride Pressure Setpoint.
Speed
P
Allows the user to program the proportional gain for
the speed.
I
Allows the user to program the integral gain (minutes
per repeat) for the speed.
D
Allows the user to program the derivative gain for the
speed.
Hot Gas
P
Allows the user to program the proportional gain for
the Hot Gas Valve.
OVERVIEW
This screen displays the pertinent tuning parameters
associated with primary compressor capacity limits in
relation to Low Suction Override, and High Discharge
Override.
DISPLAY ONLY
PC-111 Low Suction Override
PV
Displays the Low Suction Override Process Variable
(PV) pressure.
CV
Displays the Low Suction Override Control Value
(CV) percentage.
PC-113 High Discharge Override
PV
Displays the High Discharge Override Process Vari-
able (PV) pressure.
CV
Displays the High Discharge Override Control Value
(CV) percentage.
CAPACITY LIMITS SCREEN
LD15554
FIGURE 39 - CAPACITY LIMITS SCREEN