Trane CVHE Information Manual page 86

DIAGNOSTIC DESCRIPTION
Starter: Loss of Comm with
Chiller
Starter Mod Ref Voltage
Calibration
Stepper #1:Loss of Comm with
Starter
Stepper #1:Loss of Comm with
Chiller
Surge Shutdown: Ice Building
TCI: Loss of Comm with Purge
TCI: Loss of Comm with Starter
TCI: Loss of Comm with Options IFW
TCI: Loss of Comm with Circuit
TCI: Loss of Comm with Chiller
TCI: Loss of Comm with
Stepper #1
Tracer Communications Lost
Tracer failed to Establish Comm
Tracer Outdoor Air Temp
Sensor Fail
Tracer Temperature Sensor
Transition Complete Input
Shorted
Information Manual
Diag Module Diag.
Type that Active
Called Modes
Diag.
MMR Starter All
IFW Starter All
MMR Stepper All
MMR Stepper All
MAR Starter All Ice
Building
Modes
IFW TCI All
IFW TCI All
TCI All
IFW TCI All
IFW TCI All
IFW TCI All
IFW TCI All
IFW TCI At power-
up
IFW Chiller All
IFW Options All
MMR Starter Pre-Start
CAUSE
The starter module lost communications with the
Chiller module for 15 contiguous seconds.
An improper reference voltage was detected at
the Starter Module. A 2.5 vdc reference is used
to calibrate the non-ratiometric analog I/O such
as 2-10vdc and 4-20ma inputs as well as PWM
Analog outputs. The micro checks to see that the
A/D value falls within an acceptable range.
The Stepper #1 module lost communications
with the Starter module for 15 contiguous
seconds.
The Stepper #1 module lost communications
with the Chiller module for 15 contiguous
seconds.
An extended Surge condition was detected while
in Ice Building Mode. This diagnostic shall clear
when the Ice Building command is withdrawn.
The TCI module lost communications with the
Purge module for 15 contiguous seconds.
The TCI module lost communications with the
Starter module for 15 contiguous seconds.
The TCI module lost communications with the
Options module for 15 contiguous seconds.
The TCI module lost communications with the
Circuit module for 15 contiguous seconds.
The TCI module lost communications with the
Chiller module for 15 contiguous seconds.
The TCI module lost communications with the
Stepper #1 module for 15 contiguous seconds.
The Tracer was setup as "installed" at the CLD
and the TCI lost communications with the Tracer
for 15 contiguous minutes after it had been
established. Continue to run the chiller with the
last valid Tracer Setpoints/Mode.
The Tracer was setup as "installed" at the CLD
and the Tracer did not communicate with the TCI
within 2 minutes after power-up.
Input Shorted.
a. The Transition Complete input was found to
be shorted before the compressor was started.
b. This is active for all electromechanical
starters.
Diagnostics Menu
Help Message
Check IPC
Wiring/
Connections
See
Troubleshooting
Service Bulletin
Check IPC
Wiring/
Connections
Check IPC
Wiring/
Connections
See
Troubleshooting
Service Bulletin
Check IPC
Wiring/
Connections
Check IPC
Wiring/
Connections
Check IPC
Wiring/
Connections
Check IPC
Wiring/
Connections
Check IPC
Wiring/
Connections
Check IPC
Wiring/
Connections
Check Tracer to
UCP Wiring/
Connections
Check Tracer
Wiring/
Connections/
Power
Check Sensor,
Wiring, and
Connections
Check Sensor,
Wiring, and
Connections
Check transition
complete
contact
81