60
YORK INTERNATIONAL
Description of Operation:
The gear lube system pump must not be energized when
the oil in the gear is below 60°F. The Cat. Engine Control
Panel will not energize the gear lube system pump until
after a start command is received from the YORK Chiller
Control Panel.
The gear is equipped with an adjustable temperature switch
which will provide a contact closure when the gear oil
GEAR OIL TEMPERATURE SWITCH CONNECTIONS
TO THE CATERPILLAR ENGINE PANEL
temperature is above the setpoint. The temperature set-
ting for the low gear oil temperature shall be set for 65°F.
Five volts shall be supplied to the switch from J7 Pin 2 on
the I/O Expansion PCB in the YORK Micro Panel. The
return signal from the low gear oil temperature switch
shall be connected to J7, Pin 1 on the I/O Expansion
Board.
LD02316
LD02219
LD02220
PHYSICAL LOCATION OF THE TEMPERATURE SWITCH
Once the vibration level is set, if at any time the vibration
readings are greater than 20% below the programmable
cutout level for 5 seconds continuously, the panel will
issue a warning indication and the message:
WARNING – HIGH ENGINE VIBRATION DETECTED
will be displayed when the
STATUS
key is pressed.
This condition will persist until the vibration reading fall
below 20% below the setpoint for 5 seconds continu-
ously.
If, however, the vibration readings continue to rise, the
panel will initiate an emergency stop shutdown if the sen-
sor feedback rises above setpoint for 2.5 seconds con-
tinuously. The panel will issue a shutdown and the mes-
sage.
SUN 12:00 AM HIGH ENGINE VIBRATION FAULT
will be displayed when the
STATUS
key is pressed.
This condition will persist until the readings fall below the
cutout setpoint.
