Trane R Series Installation, Operation And Maintenance Manual page 159

Diagnostics
Table 67. Main processor diagnostics (continued)
Affects
Diagnostic Name Target Severity
Low Oil Flow -
Cprsr
Compressor 2A
Low Oil Flow -
Cprsr
Compressor 2B
Low Suction
Refrigerant Pressure Circuit Immediate
- Circuit 1
Low Suction
Refrigerant Pressure Circuit Immediate
- Circuit 2
Low Suction
Refrigerant Pressure Circuit Immediate
- Cprsr 1B
Low Suction
Refrigerant Pressure Circuit Immediate
- Cprsr 2B
MP Application
Chiller Immediate
Memory CRC Error
MP: Could not Store
None
Starts and Hours
MP: Invalid
None
Configuration
MP: Non-Volatile
None
Block Test Error
MP: Non-Volatile
None
Memory Reformat
MP: Reset Has
None
Occurred
Oil Flow Fault -
Circuit Immediate
Compressor 1A
RTAC-SVX01J-EN
Active Modes
Persist- [Inactive
ence Modes]
Cprsr Energized
Immediate Latch and Delta P above
35 Psid
Cprsr Energized
Immediate Latch and Delta P above
35 Psid
Cprsr Prestart and
Latch
Cprsr Energized
Cprsr Prestart and
Latch
Cprsr Energized
Cprsr Prestart and
Latch
Cprsr Energized
Cprsr Prestart and
Latch
Cprsr Energized
Latch All Modes
Info Latch
Immediate Latch
Info Latch
Info Latch
Info NonLatch
Starter Contactor
Latch Energized
[all Stop modes]
The intermediate oil pressure transducer for this compressor
was out of the acceptable pressure range for 15 seconds, while
the Delta Pressure was greater than 35Psid.: Acceptable range
is 0.50 > (PC-PI) / (PC-PE) for the first 2.5 minutes of operation,
and 0.25 > (PC-PI) / (PC-PE) thereafter,,.
The intermediate oil pressure transducer for this compressor
was out of the acceptable pressure range for 15 seconds, while
the Delta Pressure was greater than 35 Psid.: Acceptable range
is 0.50 > (PC-PI) / (PC-PE) for the first 2.5 minutes of operation,
and 0.25 > (PC-PI) / (PC-PE) thereafter,
a. The Suction Refrigerant Pressure (or either of the compressor
suction pressures) dropped below 10 Psia just prior to
compressor start (after EXV preposition). b. The pressure fell
below 16 Psia while running after the ignore time had expired,
or fell below 10 Psia (or 5 Psia in sftw prior to Oct'02) before the
ignore time had expired. The ignore time is function of outdoor
air temperature. Note: Part b. is identical to Low Evaporator
Refrigerant Temperature diagnostic except for the trip integral
and trip point settings.
a. The Suction Refrigerant Pressure (or either of the compressor
suction pressures) dropped below 10 Psia just prior to
compressor start (after EXV preposition). b. The pressure fell
below 16 Psia while running after the ignore time had expired,
or fell below 10 Psia (or 5 Psia in sftw prior to Oct'02) before the
ignore time had expired. The ignore time is function of outdoor
air temperature. Note: Part b. is identical to Low Evaporator
Refrigerant Temperature diagnostic except for the trip integral
and trip point settings.
a. The Suction Refrigerant Pressure (or either of the compressor
suction pressures) dropped below 10 Psia just prior to
compressor start (after EXV preposition). b. The pressure fell
below 16 Psia while running after the ignore time had expired,
or fell below 10 Psia (or 5 Psia in sftw prior to Oct'02) before the
ignore time had expired. The ignore time is function of outdoor
air temperature. Note: Part b. is identical to Low Evaporator
Refrigerant Temperature diagnostic except for the trip integral
and trip point settings.
a. The Suction Refrigerant Pressure (or either of the compressor
suction pressures) dropped below 10 Psia just prior to
compressor start (after EXV preposition). b. The pressure fell
below 16 Psia while running after the ignore time had expired,
or fell below 10 Psia (or 5 Psia in sftw prior to Oct'02) before the
ignore time had expired. The ignore time is function of outdoor
air temperature. Note: Part b. is identical to Low Evaporator
Refrigerant Temperature diagnostic except for the trip integral
and trip point settings.
Memory error criteria TBD
MP has determined there was an error with the previous power
All down store. Starts and Hours may have been lost for the last 24
hours.
MP has an invalid configuration based on the current software
All
installed
MP has determined there was an error with a block in the Non-
All
Volatile memory. Check settings.
MP has determined there was an error in a sector of the Non-
All
Volatile memory and it was reformatted. Check settings.
The main processor has successfully come out of a reset and
built its application. A reset may have been due to a power up,
All installing new software or configuration. This diagnostic is
immediately and automatically cleared and thus can only be
seen in the Historic Diagnostic List in TechView
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.
Criteria
Reset
Level
Local
Local
Local
Local
Local
Local
Remote
Remote
Remote
Remote
Remote
Remote
Local
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