AC-SVX001A-EN
97
Table 27. Diagnostics — main processor (continued)
Diagnostic
Name
Affects
Target
Severity
Persistence
Active
Modes
[Inactive
Modes]
Criteria
Reset
Level
Oil Analysis
Recommended
– Ckt1
Circuit Info Latch
“Service
Messages”
enabled
Diagnostic occurs when accumulated circuit
operating hours since last initialized exceeds 2000
hours. Diagnostic can be manually cleared but will
reoccur every month (720 hours on real time clock)
as long as accumulator is not re-initialized
Remote
Oil Analysis
Recommended
– Ckt2
Circuit Info Latch
“Service
Messages”
enabled
Diagnostic occurs when accumulated circuit
operating hours since last initialized exceeds 2000
hours. Diagnostic can be manually cleared but will
reoccur every month (720 hours on real time clock)
as long as accumulator is not re-initialized
Remote
Oil Filter
Change
Recommended
– Cprsr1A
Circuit Info Latch
“Service
Messages”
enabled
Diagnostic occurs only when “service messages” are
enabled and when average oil pressure drop exceeds
18%. Diagnostic can be manually cleared but will
reoccur every month (720 hours on real time clock)
as long as average pressure drop does not fall below
16%
Remote
Oil Filter
Change
Recommended
– Cprsr2A
Circuit Info Latch
“Service
Messages”
enabled
Diagnostic occurs only when “service messages” are
enabled and when average oil pressure drop exceeds
18%. Diagnostic can be manually cleared but will
reoccur every month (720 hours on real time clock)
as long as average pressure drop does not fall below
16%
Remote
Oil Flow
Protection
Fault – Ck 1
Circuit Immediate Latch
Starter
Contactor
Energized [all
Stop modes]
The Intermediate Oil Pressure Transducer for this
cprsr is reading a pressure either above its respective
circuit’s Condenser Pressure by 15 Psia or more, or
below its respective Suction Pressure 10 Psia or more
for 30 seconds continuously
Local
Oil Flow
Protection
Fault – Ckt2
Circuit Immediate Latch
Starter
Contactor
Energized [all
Stop modes]
The Intermediate Oil Pressure Transducer for this
cprsr is reading a pressure either above its respective
circuit’s Condenser Pressure by 15 Psia or more, or
below its respective Suction Pressure 10 Psia or more
for 30 seconds continuously
Local
Oil Pressure
Transducer –
Cprsr1A
Circuit Immediate Latch All Bad Sensor or LLID Remote
Oil Pressure
Transducer –
Cprsr2A
Circuit Immediate Latch All Bad Sensor or LLID Remote
Outdoor Air
Temperature
Sensor
Chiller
Normal
Shutdown;
Latch All
Bad Sensor or LLID. If this diagnostic occurs,
operational pumpdown will be performed regardless
of the last valid temperature
Remote
Pumpdown
Terminated -
Ckt1
Circuit Info NonLatch
Service
Pumpdown
Service Pumpdown cycle for this circuit was
terminated abnormally due to excessive time.(RTAE
max Service Pumpdown = 4 min)
Local
Pumpdown
Terminated -
Ckt2
Circuit Info NonLatch
Service
Pumpdown
Service Pumpdown cycle for this circuit was
terminated abnormally due to excessive. (RTAE max
Service Pumpdown = 4 min)
Local
Software Error
1001: Call
Trane Service
All functions 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
DDiiaaggnnoossttiiccss
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