Johnson Controls York YKEP Series User Manual

FORM 160.77-O2
ISSUE DATE: 11/15/2011
JOHNSON CONTROLS
32
SECTION 3 - YKEP CONTROL PANEL OPERATION
OVERVIEW
This screen provides a means to select manual or auto
control for the Hot Gas Valve, Drive Frequency, and
PRV’s. This screen also provides a means for a Service
Technician to control Speed, PRV, and Hot Gas Bypass
Valve manually for maintenance or service.
DISPLAY ONLY
Leaving Condenser Liquid Temperature
Displays the temperature of the condenser liquid as the
liquid exits the condenser (provided by RTD TE-103).
Leaving Chilled Liquid Temperature
Displays the temperature of the chilled liquid as the
liquid exits the evaporator (provided by RTD TE-101).
Condenser Pressure
Displays the refrigerant pressure in the condenser (pro-
vided by transducer PE-113).
Evaporator Pressure
Displays the present refrigerant pressure in the evapo-
rator (provided by trasducer PE-111).
MANUAL / AUTO STATIONS SCREEN
LD15555
FIGURE 19 - MANUAL / AUTO STATIONS SCREEN
Hot Gas Valve
Displays the open percentage of the Hot Gas Bypass
Valve (provided by TCV-100C).
Drive Frequency
Displays the present output frequency to the motor,
which is provided by the drive.
Pri PRV Position
Displays the open percentage of the Primary Compres-
sors PRV (provided by PRV Potentiometer ZE-100A).
Sec PRV Position
Displays the open percentage of the Economizer Com-
pressors PRV (provided by PRV Potentiometer ZE-
100B).

Johnson Controls York YKEP Series Specifications

General

Brand	Johnson Controls
Model	York YKEP Series
Category	Chiller
Language	English