Trane Sintesis RTAF Installation, Operation And Maintenance Manual page 77

Table 27. Main processor diagnostics (continued)
Diagnostic Affects
Name Target Severity Persistence
Low Suction
Refrigerant
Pressure
Low Suction Circuit Immediate Latch
Rfgt Pressure
Low Suction
Rfgt Pressure
Mfr
Maintenance
Recommended -
xy Cprsr Info
Maint
Recommended
xy
MP: Invalid
None Immediate Latch
Configuration
MP: Reset Has
None Info
Occurred
No Differential
Refrigerant
Pressure - xy
No Differential
Cprsr Immediate Latch
Rfgt Pressure -
xy
No Diff Rfgt
Press - xy
Oil Flow
Protection Fault Cprsr Immediate Latch
xy
Oil Pressure
Cprsr Immediate Latch
Sensor - xy
Oil Temperature
Sensor - xy
Cprsr Normal
Oil Temp Sensor
- xy
Outdoor Air
Temperature
Sensor Chiller Normal
Outdoor Air
Temp Sensor
Pumpdown
Terminated By Circuit Info
Time
Restart Inhibit
Invoked - xy
Cprsr Info
Restart Inhibit
xy
Software Error
1001: Call Trane
All
Service Immediate Latch
functions
SW Error 1001-
Call Trane
RTAF-SVX001A-EN
Active
Modes
[Inactive
Modes] Criteria
a. The Suction Pressure dropped below 10 Psia just prior to compressor
start (after EXV preposition). b. During Early Startup Period: the
Suction Pressure fell below a pressure equal to Condenser Pressure ÷
Cprsr Prestart
8 but as limited to not less than 6 or greater than10 psia. c. After Early
and Cprsr
Startup Period expires: The Suction Pressure fell below 16 Psia.
Energized
(Note: the Early Startup Period is between 1 and 5 min as an inverse
function of the Cond Temp measured at time of circuit startup).
Service
Compressor service recommended as service interval hours have
Latch Messages
elapsed.
Enabled
All MP has an invalid configuration based on the current software installed. Remote
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
Latch All software or configuration. This diagnostic is immediately and
automatically cleared and thus can only be seen in the Historic
Diagnostic List in Tracer TU.
Compressor The system differential pressure was below 7.7 Psid (53 kPa) for 6
running on seconds after the 11 seconds ignore time relative to cprsr/circuit
Circuit startup had expired.
Starter The Intermediate Oil Pressure Sensor for this cprsr is reading a
Contactor pressure either above its respective circuit's Condenser Pressure by 15
Energized [all Psia or more, or below its respective Suction Pressure 10 Psia or more
Stop modes] for 30 seconds continuously.
All Bad Sensor or LLID
Latch All Bad Sensor or LLID
Latch All Bad Sensor or LLID.
Service Service Pumpdown cycle for this circuit was terminated abnormally due
Latch
Pumpdown to excessive time (RTAF max Service Pumpdown = 4 min.).
When restart inhibit warning is enabled, the warning exists when unit
Latch All has been inhibited from starting and is cleared when a start of a
compressor is possible (Start-to-Start Timer expires)
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
All 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.
Diagnostics
Reset
Level
Local
Remote
Remote
Remote
Local
Remote
Remote
Remote
Local
Remote
Local
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