110
AC-SVX003A-EN
Table 31. Diagnostics — main processor (continued)
Diagnostic
Name
Affects Target Severity
Persistence
Active Modes
[Inactive
Modes]
Criteria
Reset
Level
MP: Reset Has
Occurred
Platform
Warning
NonLatch All
The main processor has successfully come out of a reset
and built its application. A reset may have been due to a
power up, installing new software or configuration. This
diagnostic is immediately and automatically cleared and
thus can only be seen in the Historic Diagnostic List in
Tracer TU.
Remote
No Differential
Refrigerant
Pressure - xy
Cprsr
Immediate
'A' cprsr: Auto
Reset on timer –
Latch if 3
instances in 30
minutes
'B' cprsr: Latch
Compressor
running on
Circuit
The system differential pressure was below 7.7 Psid (53
kPa) for 6 seconds after the 11 seconds ignore time relative
to cprsr/circuit startup had expired.
'A' GP4 compressors: Auto Reset on a 3 min timer, 2
retries allowed (beginning with build xxx when ACRC was
introduced).
'B' GP2.5 compressors: always latching diagnostic ('no'
Auto Reset).
Remote
Oil Flow
Protection Fault -
xy
Cprsr
Immediate Latch
Starter Contactor
Energized
[all Stop modes]
The Intermediate Oil Pressure Sensor for this cprsr is
reading a pressure either above its respective circuit’s
Condenser Pressure by 15 Psid or more, or below its
respective compressor Suction Pressure 10 Psid or more
for 30 seconds continuously.
Local
Oil Pressure
Sensor - xy
Cprsr
Immediate Latch All Bad Sensor or LLID Remote
Oil Supply
Temperature
Sensor
Circuit Normal Latch All Bad Sensor or LLID Remote
Outdoor Air
Temperature
Sensor
Chiller Normal Latch All Bad Sensor or LLID. Remote
Pumpdown
Terminated By
Time
Circuit
Warning
Latch
Service
Pumpdown
Service Pumpdown cycle for this circuit was terminated
abnormally due to excessive time. Reference Service
Pumpdown spec for maximum time allowed.
Local
Restart Inhibit
Invoked - xy
Cprsr Warning
NonLatch All
When restart inhibit warning is enabled, the warning exists
when unit has been inhibited from starting and is cleared
when a start of a compressor is possible (Start-to-Start
Timer expires)
Remote
Software Error
1001: Call Trane
Service
Chiller Immediate Latch All
A high level software watchdog has detected a condition in
which there was a continuous 1 minute period of
compressor operation, with neither Evaporator water flow
nor a” contactor interrupt failure” diagnostic active. The
presence of this software error message suggests an
internal software problem has been detected. The events
that led up to this failure, if known, should be recorded and
transmitted to Trane Controls Engineering.
Local
Software Error
1002: Call Trane
Service
Chiller Immediate Latch All
Reported if state chart misalignment in stopped or inactive
state occurred while a compressor was seen to be
operating and this condition lasted for at least 1 minute
(cprsr operation due to Service Pumpdown or with
Contactor Interrupt Failure diagnostic is excluded). The
presence of this software error message suggests an
internal software problem has been detected. The events
that led up to this failure, if known, should be recorded and
transmitted to Trane Controls Engineering.
Local
Software Error
1003: Call Trane
Service
Chiller Immediate Latch All
Reported if state chart misalignment occurred inferred from
the Capacity Control, Circuit, or Compressor State
Machines remaining in the Stopping state for more than 3
minutes. The presence of this software error message
suggests an internal software problem has been detected.
The events that led up to this failure, if known, should be
recorded and transmitted to Trane Controls Engineering.
NOTE: This diagnostic will only apply to GP2 compressors
with starter module.
Local
Diagnostics
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