York YK-EP, Operation And Maintenance Manual

Page: 128 / 268

Table 128: Programmable
Button Access level Description
Motor Lube
Date
Admin Allows modification of the Date of Last Motor Lubrication.
Shutdown Service
If the Auto Lube Setpoint above is set to Disabled, the Shutdown
Setpoint is used to enable or disable the safety shutdown that
occurs at 1400 operating hours since last lubrication.
The safety shutdown can be enabled or disabled per the customer’s
preference. If enabled, the safety shutdown will occur at the normal
1400 hours. If disabled, a warning will be displayed but the safety
shutdown will not occur.
Motor Lube
Acknowledge Operator
The operator must acknowledge the motor lubrication has been
performed once it is complete. This is done by entering his/her
initials, name or user ID as a 3 to 8 character string*.
The entry is displayed as the Operator Initials at Last Lubrication.
The date and time of this entry is automatically logged as the Date
of Last Motor Lubrication and Time of Last Motor Lubrication. This
entry also resets the operating hours since last lubrication to zero.
This entry also resets the motor lubrication warning messages:
WARNING – MOTOR BEARING LUBE SUGGESTED, WARNING –
MOTOR BEARING LUBE REQUIRED and safety shutdown Motor –
Lack Of Bearing Lubrication.
Auto Lube Service
This setpoint accommodates those chillers that are equipped
with the optional Automatic Motor Lubrication hardware that
automatically lubricates the motor at regular intervals.
Since chillers equipped with this hardware don’t require manual
lubrication, the lubrication warnings displayed at 1000, 1200 and
1400 (safety shutdown) operating hours since last lubrication are
unnecessary. Therefore, when the automatic lubrication hardware
is present, this setpoint must be enabled. With this setting, no
lubrication warnings or safety shutdown will occur.
If disabled, as it should be when not equipped with the automatic
lubrication hardware, the motor lubrication warnings and safety
shutdown will occur at the associated operating hours.
Note: *
Enter your initials, name or user ID using the following procedure. The entry must be a
minimum of 3 characters and a maximum of 8 characters.
1. At the keypad, log in at OPERATOR access level using password 9 6 7 5. If resetting the
safety shutdown Motor – Lack Of Lubrication, place the Safety Stop Switch in the Stop
position.
2. Press the MOTOR LUBE ACKNOWLEDGE key on the MOTOR LUBRICATION Screen. A
dialog box appears. A red box highlights the first changeable location.
YK-EP Style B Centrifugal Chiller 128