Figure 21 - Setpoints Screen - York YZ MODEL A Operation And Maintenance Manual

SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION

FIGURE 21 - SETPOINTS SCREEN

This screen provides a convenient location for pro-
gramming the most common setpoints involved in the
chiller control. This screen also serves as a gateway to
a subscreen for defining the setup of general system
parameters.
DISPLAY ONLY FIELDS
FIELD/LED NAME
Leaving Chilled Liquid Temperature -
Setpoint
Leaving Chilled Liquid Temperature
Cycling - Shutdown
Leaving Chilled Liquid Temperature
Cycling – Restart
Leaving Chilled Liquid Temperature
Cycling - Shutdown Offset
Leaving Chilled Liquid Temperature
Cycling - Restart Offset
Current Limit Setpoint
PROGRAMMABLE
BUTTON ACCESS LEVEL
Local Input
Operator
Current Limit
60
DISPLAY ONLY FIELDS
Displays the present Active setpoint to which the chiller is operating whether
controlled remotely or locally.
Displays the Leaving Chilled Liquid Temperature at which the chiller will shut
down to avoid over-cooling LCHLT below setpoint in low load situations.
Displays the Leaving Chilled Liquid Temperature at which the chiller will restart
after it has shut down due to over-cooling temperature.
This Offset is the number of degrees below the Setpoint that the chiller will shut
down on Low Leaving Chilled Water Temp.
This Offset is the number of degrees above the Setpoint that the chiller will
restart after cycling off on Low Leaving Chilled Water Temp.
Displays the active Input Current Limit setpoint.
PROGRAMMABLE
Allows the user to specify the maximum allowed chiller input current (as a
percentage of FLA). When the chiller input current reaches this value, the input
current override takes effect.
LD26742
DESCRIPTION
DESCRIPTION
FORM 161.01-OM1
ISSUE DATE: 6/8/2018
JOHNSON CONTROLS