FORM 160.77-O2
ISSUE DATE: 11/15/2011
JOHNSON CONTROLS
42
SECTION 3 - YKEP CONTROL PANEL OPERATION
Condenser Saturation Temperature
This display indicates the saturation temperature in the
condenser, as calculated from the voltage of the con-
denser pressure transducer (provided by transducer
PE-113).
Sub-Cooling Effect
This display indicates the difference between the con-
denser saturation temperature (PE-113) and the sub-
cooled refrigerant temperature (TE-114).
Condenser Flow
Displays a green if there is refrigerant flow in the con-
denser, and displays a if there is NO refrigerant flow
in the condenser (provided by flow switch FSLL-103).
Subcooler Valve
Displays the open percentage of the Subcooler Valve
(provided by level valve actuator LCV-114).
Primary High Pressure Switch
Displays a green if the Primary High Pressure Switch
contacts are closed, and displays a if the Primary
High Pressure Switch contacts are open, indicating a
fault condition (Primary Compressor High Discharge
Pressure Cutout PSHH-113A).
OVERVIEW
This screen displays a cutaway view of the chiller con-
denser. All setpoints relating to the condenser side of
the chiller are maintained on this screen. Animation
indicates condenser liquid flow.
DISPLAY ONLY
Leaving Condenser Liquid Temperature
Displays the temperature of the liquid leaving the con-
denser (provided by RTD TE-103).
Return Chilled Liquid Temperature
Displays the temperature of the liquid entering the con-
denser (provided by TE-102).
Condenser Small Difference Temp
Displays the difference between the condenser refrig-
erant temperature (TE-102) and the leaving condenser
liquid temperature (TE-103).
Condenser Pressure
Displays the refrigerant pressure in the condenser (pro-
vided by transducer PE-113).
CONDENSER SCREEN
LD15398
FIGURE 24 - CONDENSER SCREEN