Diagnostics

water and refrigerant temperatures out of range

loss of flows

sensor and switch faults

overload trips

over/under voltage (if applicable)

surge/extended surge

compressor acceleration failure

transition failure

other drives faults

distribution faults

oil pressures and temperatures out of range

high condenser pressure cutout

low and high differential pressure

emergency stop

loss of communications to other sources

microprocessor memory errors

high motor winding temperature

excessive purge activity

Operator Interface

The Trane CenTraVac chiller control panel, UCP2 is easy to use, understand, to access information, to read, to change setpoints, to diagnose problems, to maintain, and to reset after shutdown.

Convenience

• Enunciation of all information is at the front panel display (including power, voltage, amps, purge, pressures, refrigerant monitoring, and number of starts data)
• Messages displayed using clear language

Readability

• LCD, super-twist, 2 line, 40 character display that is easy to read from a distance anywhere within a 60 degree angle.
• LCD backlight so that the display can be read in a variety of equipment room lighting. "Customizable" reports with understandable messages.

Maintainability and Serviceability

• Keypad programmability — no setpoint potentiometers
• No batteries — configuration stored in nonvolatile memory
• Logically arranged report groups with report header and setpoint groups
• Selectable security
• Variable points updated every two seconds
• Messages that direct user to problem source via a menu item

Application Flexibility

• Eight languages available
• Metric (SI) units or English
• Remote display interface (optional)

For more information on the Trane centrifugal chiller unit control panel, please contact your local Trane sales engineer.