Installation and Maintenance Manual

Diagnostics
RLC-SVX09H-EN 205
Low Evaporator Water
Temp: Unit On
Chiller
Immediate
and Special
Action
Non Latch
Any Ckt[s] Energzd
[No Ckt(s)
Energzd]
The evaporator water temp. fell below the cutout
setpoint for 30 degree F Seconds while the
compressor was running. Automatic reset occurs
when the temperature rises 2 F (1.1C) above the
cutout setting for 2 minutes. This diagnostic shall not
de-energize the Evaporator Water Pump Output.
Remote
Low Oil Flow -
Compressor 1A
Circuit Immediate Latch
Cprsr Energized
and Delta P above
15 Psid
The intermediate oil pressure transducer for
this compressor was indicating an
unacceptable oil pressure drop as a % of the
available oil pressure to move oil, suggesting
significantly reduced oil flow to the compressor.
Possible root causes include oil line service
valve closed or restricted, dirty or restricted oil
filter, compressor oil line kepner valve
malfunction, or plugged (restricted oil cooler
(when present).
Local
Low Oil Flow -
Compressor 2A
Circuit Immediate Latch
Cprsr Energized
and Delta P above
15 Psid
The intermediate oil pressure transducer for
this compressor was indicating an
unacceptable oil pressure drop as a % of the
available oil pressure to move oil, suggesting
significantly reduced oil flow to the compressor.
Possible root causes include oil line service
valve closed or restricted, dirty or restricted oil
filter, compressor oil line kepner valve
malfunction, or plugged (restricted oil cooler
(when present).
Local
MP Application Memory
CRC Error
Chiller Immediate Latch All Modes Memory error criteria TBD Remote
MP: Could not Store
Starts and Hours
None Info Latch All
MP has determined there was an error with the
previous power down store. Starts and Hours
may have been lost for the last 24 hours.
Remote
MP: Invalid
Configuration
None Immediate Latch All
MP has an invalid configuration based on the
current software installed
Remote
MP: Non-Volatile Block
Test Error
None Info Latch All
MP has determined there was an error with a
block in the Non-Volatile memory. Check
settings.
Remote
MP: Non-Volatile
Memory Reformat
None Info Latch All
MP has determined there was an error in a
sector of the Non-Volatile memory and it was
reformatted. Check settings.
Remote
MP: Reset Has
Occurred
None Info Non Latch 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 TechView
Remote
No Differential
Refrigerant Pressure –
Circuit 1
Circuit Immediate 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.
Remote
No Differential
Refrigerant Pressure –
Circuit 2
Circuit Immediate 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.
Remote
Oil Analysis
Recommended – Ckt
#1
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
Table 134. Main Processor Diagnostics (continued)
Diagnostic Name
Affects
Target Severity Persistence
Active Modes
[Inactive
Modes] Criteria
Reset
Level