Tandem 1 Low Pressure—Enables or disables the Tandem 1 Low Pressure event, which occurs when the
low-pressure switch for Tandem Compressor Bank 1 does not send the proper signal during normal
operation or during pump-down. Sets how the event is reported: as an alarm, a warning or a message.
Specifies how long the control waits before reporting the event.
Tandem 1 Pumpdown Fail—Enables or disables the Tandem 1 Pumdown event, which occurs when the
Tandem Compressor Bank 1 suction pressure cannot be pumped down below the threshold during
compressor shutdown. Sets how the event is reported: as an alarm, a warning or a message. Specifies how
long the control waits before reporting the event.
Figure 6.37 Set alarms, page 6 of 7
Comp 2A High Pressure—Enables or disables the Comp 2A High Pressure event, which occurs when the
controls senses a high-pressure signal from Compressor 2A. Sets how the event is reported: as an alarm, a
warning or a message. Specifies how long the control waits before reporting the event.
Comp 2A Short Cycle—Enables or disables the Comp 1B Short Cycle event, which occurs when
Compressor 1B turns On, Off, then back On 10 times within 1 hour. Sets how the event is reported: as an
alarm, a warning or a message. Specifies how long the control waits before reporting the event.
Comp 2B High Pressure—Enables or disables the Comp 2B High Pressure event, which occurs when the
controls senses a high-pressure signal from Compressor 2B. Sets how the event is reported: as an alarm, a
warning or a message. Specifies how long the control waits before reporting the event.
Comp 2B Short Cycle—Enables or disables the Comp 2B Short Cycle event, which occurs when
Compressor 2B turns On, Off, then back On 10 times within 1 hour. Sets how the event is reported: as an
alarm, a warning or a message. Specifies how long the control waits before reporting the event.
Tandem 2 Low Pressure—Enables or disables the Tandem 2 Low Pressure event, which occurs when the
low-pressure switch for Tandem Compressor Bank 2 does not send the proper signal during normal
operation or during pump-down. Sets how the event is reported: as an alarm, a warning or a message.
Specifies how long the control waits before reporting the event.
Vertiv | Liebert® XDC™ User Manual | 99
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