Trane CCUN 205-211 User Manual page 27

Chiller control system
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High Evaporator Water
Temperature
High Pressure Cutout
Emergency Stop
Outdoor Air Temp Sensor
MP: Non-Volatile Memory
Reformatted
Check Clock
MP: Could not Store Starts
and Hours
MP: Non-Volatile Block Test
Error
Starts/Hours Modified
CG-SVU02B-E4
Diagnostics
Chiller
Immediate
NonLatch
Circuit
Immediate
Latch
Chiller
Immediate
Latch
Chiller
Warning
Latch
and Special
Action
None
Warning
Latch
Platform
Warning
Latch
Platform
Warning
Latch
Platform
Warning
Latch
Cprsr
Warning
NonLatch
All
The evaporator leaving water temperature is above 46°C. This
diagnostic shall clear once the evaporator leaving water
temperature falls below 43.3°C. This diagnostic protects the
rupture disk. The evaporator water pump shall not run when
this diagnostic is active.
All
The high pressure cutout switch was open for more than one
second.
All
Emergency Stop input is open.
All
Bad Sensor or LLID. If configured as an air-cooled this
diagnostic shall use a minimum low refrigerant temperature
ignore time of 30 seconds.
All
MP has determined there was an error in a sector of the Non-
Volatile memory and it was reformatted. Check settings.
All
The real time clock had detected loss of its oscillator at some
time in the past. Check / replace battery? This diagnostic can
be effectively cleared only by writing a new value to the chillers
time clock using the TechView or DynaViews set chiller time
functions.
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.
All
MP has determined there was an error with a block in the Non-
Volatile memory. Check settings.
All
A counter for compressor starts or hours has been modified by
TechView. This diagnostic is immediately and automatically
cleared and thus can only be seen in the historic diagnostic
list.
Local
Local
Local
Remote
Remote
Remote
Remote
NA
27

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