York YK-EP, Operation And Maintenance Manual

Page: 105 / 268

Table 101: Programmable
Button Access level Description
Local Motor
Current Limit Operator
Allows the user to specify the maximum allowed motor current (as
a percentage of FLA). When the motor current reaches this value,
the Pre-Rotation Vanes will not be permitted to open further. If the
motor current rises above this value, the Pre-Rotation Vanes close to
reduce the current to this value.
Pulldown
Demand
Limit
Operator
Allows the user to specify the current limit value (as a percentage
of FLA) to which the chiller will be limited during the specified
pulldown time. This value will override the Motor Current Limit
Setpoint during this time period. The Pre-Rotation Vanes are used to
limit the motor current to this value.
Pulldown
Demand
Time
Operator
Allows the user to set the period of time for which the pulldown
demand limit will be in effect.
Full Load
Amps
Service
Defines the maximum amps at which the motor can operate. This
value is viewable when logged in at OPERATOR or VIEW access level.
Starting
Current
Service
Defines the maximum allowed motor starting amps. The starter will
limit the starting current to this value.
kWh Reset Service
Allows the Service Technician to set the kWh to a value between 0
and 999999.
Table 102: Navigation
Button Access level Description
Home View Returns user to HOME Screen.
Motor Lube View
Moves to a subscreen allowing operator acknowledgement of the
compressor motor lubrication and viewing of the compressor motor
lubrication parameters.
Motor Details Service
Moves to a subscreen that provides information and setpoints
pertinent to the Motor Monitoring feature. Only displayed if this
option is installed.
105 YK-EP Style B Centrifugal Chiller