Trane RTWA 70-125 TON - Manual (Page 45)

RLC-SVD03A-EN 45
Module Power and Miscellaneous I/O
Press Next to move down through the Chiller Report. As shown in the
figures, the flowchart explains the conditions that the UCM looks at to
determine which readout is to be displayed next. For example:
Press Chiller Report to display the header
Press Next to display
MODE: [OPERATING MODE]
REQUESTED SETPOINT SOURCE: [SETPT SOURCE]
Press Next to display
COMPRESSOR ON
CIRCUITS LOCKED OUT
Press Next to display
ACTIVE ICE TERMINATION SETPOINT
or
ACTIVE CHILLED WATER SETPOINT
The UCM will determine which screen will be displayed after looking at the
current Operating Mode. If the Operating Mode is “Ice Making” or “Ice
Making Complete”, ACTIVE ICE TERMINATION SETPOINT will be displayed.
Otherwise, ACTIVE CHILLED WATER SETPOINT will be shown.
The flowcharts also list the setpoint ranges, default options and a brief
description of the item, when necessary. This information is shown in the
lefthand column of the page, adjacent to the appropriate display.
Auto/Stop Keys
The chiller will go through a “STOPPING” mode when the Stop key is
pressed, if a compressor is running. This key has a red background color
surrounding it, to distinguish it from the others.
If the chiller is in the Stop mode, pressing the Auto key will cause the UCM to
go into the Auto/Local or Auto/Remote mode, depending on the Setpoint
Source setting. The Auto key has a green back-ground color.
When either the Auto or Stop key is pressed, Chiller Operating Mode (Chiller
Report Menu) will be shown on the display.
Power Up
When power is first applied to the control panel, the Clear Language Display
goes through a self-test. For approximately five seconds, the readout on the
display will be
SELF TEST IN PROGRESS
During the self-test, the backlight will not be energized. When the tests are
successfully complete, the readout on the display will be
6200 xxxx-xx [TYPE] configuration
Updating Unit Data, Please Wait