Evaporator Screen; Figure 8 - Evaporator Screen - York YK Style H Operation Manual

FORM 160.76-O2
issue date: 6/15/2015

FIGURE 8 - EVAPORATOR SCREEN

OVERVIEW
This screen displays a cutaway view of the chiller
evaporator. All setpoints relating to the evaporator side
of the chiller are maintained on this screen. Animation
of the evaporation process indicates whether the chiller
is presently in a RUN condition. Animation of the liq-
uid flow indicates chilled liquid flow.
DISPLAY ONLY
Chilled Liquid Flow Switch (Open / Closed)
Displays whether the liquid flow is present in the evap-
orator.
Leaving Chilled Liquid Temperature
Displays the temperature of the liquid as it leaves the
evaporator.
Entering Chilled Liquid Temperature
Displays the temperature of the liquid as it enters the
evaporator.
JOHNSON CONTROLS
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION

EVAPORATOR SCREEN

Evaporator Small Temperature Difference
Displays the difference between the Leaving Chilled
Liquid temperature and the Evaporator Refrigerant
Temperature. The Evaporator Refrigerant Temperature
will be represented by the Refrigerant Temperature
sensor input if the sensor is present, otherwise it will be
represented by the Evaporator Saturation Temperature.
Evaporator Pressure
Displays the present refrigerant pressure in the evapo-
rator.
Evaporator Saturation Temperature
Displays the present saturation temperature in the
evaporator.
Leaving Chilled Liquid Temperature Setpoints
– Setpoint
Displays the present setpoint to which the chiller is op-
erating, whether controlled locally or remotely.
Chilled Liquid Pump
Displays the command presently sent by the Control
Center to the Chilled Liquid Pump (RUN or STOP.)
LD19448
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