York YT Water Dispenser User Manual


 
YORK INTERNATIONAL
20
FORM 160.55-O1 (604)
EVAPORATOR SCREEN
OVERVIEW
This screen displays a cutaway view of the chiller evap-
o ra tor. All setpoints relating to the evaporator side of
the chiller are maintained on this screen. Animation of
the evaporation process indicates whether the chill er is
presently in a RUN condition. Animation of the liq uid
ß ow indicates chilled liquid ß ow.
DISPLAY ONLY
Chilled Liquid Flow Switch (Open / Closed)
Displays whether the liquid ß ow is present in the
evap o ra tor.
Chilled Liquid Pump
Displays the command presently sent by the control
center to the Chilled Liquid Pump (RUN or STOP).
Evaporator Pressure
Displays the present refrigerant pressure in the evap o ra tor.
Evaporator Saturation Temperature
Displays the present saturation temperature in the evap-
o ra tor.
Return Chilled Liquid Temperature
Displays the temperature of the liquid as it enters the
evaporator.
Leaving Chilled Liquid Temperature
Displays the temperature of the liquid as it leaves the
evaporator.
Evaporator Refrigerant Temperature
Displays the temperature of the refrigerant in the evap o -
ra tor, if the sensor is present.
Small Temperature Difference
Displays the difference between the Leaving Chilled
Liquid temperature and the Evaporator Refrigerant tem-
per a ture. The Evaporator Refrigerant temperature will be
represented by the Refrigerant Temperature sensor input
if the sensor is present, otherwise it will be rep re sent ed
by the Evaporator Saturation temperature.
Leaving Chilled Liquid Temperature Setpoints –
Setpoint
Displays the present setpoint to which the chiller is op er -
at ing, whether controlled locally or remotely.
Leaving Chilled Liquid Temperature Setpoints
– Shut down
Displays the Leaving Chilled Liquid Tem per a ture at which
the chiller will shut down to avoid over-cooling the build-
ing. By default this value is 4°F below the Leav ing Chilled
Setpoint.
Leaving Chilled Liquid Temperature Setpoints
– Restart
Displays the Leaving Chilled Liquid Tem per a ture at
which the chiller will restart after it has shut down due
to over-cooling temperature. By default, the chiller
will restart at the Leaving Chilled Liquid Tem per a ture
Setpoint.
00349VIP
FIG. 6
OptiView Control Center