78
RLC-SVX09Q-EN
Table 32. Main processor diagnostics (continued)
Diagnostic
Name
Affects Target Severity
Persistence
Active Modes
[Inactive
Modes]
Criteria
Reset
Level
External Chilled
Water/ Hot Water
Setpoint
Chiller
Warning
NonLatch All
a. Function Not "Enabled": no diagnostics.
b. "Enabled ": Out-Of-Range Low or Hi or bad LLID, set
diagnostic, default CWS to next level of priority (for
example Front Panel SetPoint).
Remote
External
Demand Limit
Setpoint
Chiller
Warning
Latch All
a. Not "Enabled": no diagnostics.
b. "Enabled ": Out-Of-Range Low or Hi or bad LLID, set
diagnostic, default CLS to next level of priority (for example
Front Panel SetPoint.)
Remote
Fan Inverter
Fault
Circuit (fan
control)
Special Mode (or
in single fan
deck: Circuit
Immediate
shutdown
NonLatch (or in
single fan deck:
Latch)
Prestart and
Running w/ Low
Ambient Variable
Spd Fan
configured
A fault signal has been detected from the respective
condenser’s Variable Speed Inverter Drive (fan).
Condenser Fan control will revert to constant speed
operation without the use of the inverter’s fan. If the
inverter’s fault clears, fan control will switch back to variable
speed. For single fan deck configurations, this diagnostic
causes a latching circuit shutdown
Remote
High
Compressor
Refrigerant
Discharge Temp
- xy
Cprsr
Immediate Latch
All
[compressor run
unload or
compressor not
running]
The compressor discharge temperature exceeded 199.4ºF
(without oil cooler) or 230ºF (with oil cooler). This diagnostic
will be suppressed during Stopping mode or after the
compressor has stopped. Note: As part of the Compressor
High Temperature Limit Mode (aka Minimum Capacity
Limit), the compressor shall be forced loaded as the filtered
discharge temperature reaches 190ºF (without oil coolers),
or 220ºF (with oil coolers).
Remote
High Differential
Refrigerant
Pressure - xy
Cprsr
Normal Latch
Cprsr Energized
High Vi GP2 Cprsr : The differential pressure for the
respective compressor was above 275 psid (1890 kPa) for
2 consecutive samples 5 seconds apart.
Low Vi GP2 Cprsr: 188 psid (1296 kPa)
Remote
High Evaporator
Refrigerant
Pressure
Chiller Immediate NonLatch
Any Ckt
Energized
[Stop]
The evaporator saturated temperature (circuit1 or circuit2)
has risen above 76F (24.4°C) for R513A or 82ºF (27.8°C)
for R1234ze(E)/R515B for more than 5 minutes. The
diagnostic will auto reset when all of the evaporator
saturated temperatures fall below limit temperature minus
0.5K. The ignore time (default 5 minutes) is configurable
with level4 parameter Suction Pressure Tracking Time. If it
is set to zero, the diagnostic is disabled.
Remote
Diagnostics
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