York YK-EP Operation And Maintenance Manual page 135

Table 131: Programmable
Button Access level
Motor
Cooling
Service
Coil Leak
Protection
Manual
Baseline
(Motor Service
Bearing
Vibration)
Auto
Baseline
(Motor Service
Bearing
Vibration)
Table 132: Navigation
Button Access Level Description
Home View
Motor View
Setpoints Service
YK-EP Style B Centrifugal Chiller
Description
Enables the type of leak protection device being used to detect a
leak of the motor cooling coil. When set to any setting other than
Disabled, an LED status indicator is displayed and the Motor Cooling
Coil safety fault will occur when the sensor indicates a leak. The
settings are:
• DISABLED - Disables the Motor Cooling Coil Leak Protection
feature. The status LED and text do not appear. The Motor
Cooling Coil Leak fault will not occur. This setting is used
when the motor is not equipped with a leak detector or if it is
desired to disable this feature for service reasons. This is the
default setting.
• OPTICAL - Enables the optical sensor digital input and displays
the leak status, as reported by the optical leak sensor, via the
Motor Monitoring Board serial communications.
• FLOAT - Enables the float sensor digital input and displays the
leak status, as reported by the float leak sensor, via the Motor
Monitoring Board serial communications.
Used to manually enter a vibration baseline value (0.1 to 5; default
2) for the Shaft End and Opposite Shaft End bearings. The vibration
values are not in any particular units of measure. They are relative
values. The larger the number, the greater the magnitude of
vibration represented. Values entered appear on this screen as the
Vibration Baseline values. A special password is required.
Used to run the auto baseline routine. Only allowed after the
chiller has been running for greater than 2 minutes. The vibration
level of each bearing is independently averaged for 1 hour at 1
minute intervals while the chiller is running. While the routine is
running, the time remaining in the 1 hour routine is displayed as
auto baseline time left on this screen. At the completion of the
routine, the derived values appear on the screen as the Vibration
Baseline values (0.1 - 5; default 2). The vibration values are not in
any particular units of measure. They are relative values. The larger
the number, the greater the magnitude of vibration represented. A
special password is required.
Returns user to HOME screen
Returns user to MOTOR screen
Moves to a subscreen allowing programming of additional motor
monitoring setpoints
135