Name: Johnson Controls York YKEP Series
Brand: Johnson Controls
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FORM 160.77-O2

ISSUE DATE: 11/15/2011

SECTION 3 - YKEP CONTROL PANEL OPERATION

JOHNSON CONTROLS

Fault Contact

This field displays a green checkmark when the starter

fault relay contact is closed signifying no fault present.

The field displays a  when the starter fault relay con-

tact has opened due to a fault not cleared.

PROGRAMMABLE

Local Motor Current Limit

Access Level Required: OPERATOR

This key allows the user to specify the maximum al-

lowable motor current (as a percentage of FLA). When

the motor 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

will close to reduce the current to this value.

Pulldown Demand Limit

Access Level Required: OPERATOR

This key allows the user to specify the current limit

(as a percentage of FLA) to which the chiller will be

limited during the specified pulldown limit time. This

value will overrride the Motor Current Limit value dur-

ing this time period. This function is used to provide

energy savings following a chiller start-up.

Pulldown Time

Access Level Required: OPERATOR

This key allows the user to set a period of time for

which the pulldown demand limit will be in effect after

the chiller starts.

Motor FLA