York YK-EP, Operation And Maintenance Manual

Page: 35 / 268

Table 16: Display only fields
Field/LED name Description
Sub-Cooling Temperature
Displays the difference between the Condenser Refrigerant
temperature and the Drop Leg Refrigerant temperature. The
Condenser Refrigerant temperature will be represented by the
Condenser Saturation temperature. If the Drop Leg Sensor is not
present, this temperature is not displayed.
High Pressure Switch
(Open / Closed)
Displays the present position of the high pressure switch. This will
indicate whether a high pressure fault is present.
Condenser Liquid Flow
Switch
Indicates whether flow is present in the condenser.
Condenser Liquid Pump
(Run / Stop)
Indicates whether condenser liquid pump is operating.
Condenser Refrigerant Level Displays the present position of the refrigerant level if this function
is enabled.
Active Level Setpoint
Displays the setpoint to which the refrigerant level is being
controlled.
Level Control Valve
Command
Displays the level control valve signal 0 to 100%.
Table 17: Programmable
Button Access level Description
High
Pressure
Warning
Threshold
Service
This value allows the user to define the condenser pressure at which
the chiller will initiate a warning.
Fault
Acknowledge Service
This allows clearing of the High Condenser Pressure Fault while
Shutdown (Condenser-High Pressure Stopped).
Table 18: Navigation
Button Access level Description
Home View Returns user to HOME Screen.
Level Control Service
Moves to the subscreen allowing programming of the refrigerant
liquid level control setpoints.
35 YK-EP Style B Centrifugal Chiller