Installation and Maintenance Manual

Diagnostics
214 RLC-SVX09H-EN
Limit Conditions
CH530 will automatically limit certain operating
parameters to maintain optimum chiller performance and
prevent nuisance diagnostic trips.These limit conditions
are noted in Table 137.
Err5: Operating System Error
Restart Timer:
[30 sec countdown timer]
An Operating System error has occurred while running the application code. This event will normally
cause a safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will
reset, clear diagnostics, and attempt to restart the application and allow a normal restart of chiller as
appropriate.
//See Err 4 above
Err6: Watch Dog Timer Error
Restart Timer:
[30 sec countdown timer]
A Watch Dog Timer Error has occurred while running the application code. This event will normally cause
a safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset,
clear diagnostics, and attempt to restart the application allowing a normal restart of chiller as
appropriate.
Err7: Unknown Error
Restart Timer:
[30 sec countdown timer]
An unknown Error has occurred while running the application code. This event will normally cause a
safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear
diagnostics, and attempt to restart the application allowing a normal restart of chiller as appropriate
Err8: Held in Boot by User Key Press
The boot detected a key press in the center of the DynaView or both the + and – keys pressed on an
EasyView while the MP was in the boot code. Upon seeing this message the user can use Techview to
connect to the MP to perform a software download or another service tool function.
LCI-C Hardware Mismatch
The configuration currently in the nonvolatile memory has the LonTalk or BacNet communication option
installed and the DynaView hardware does not contain adequate memory to support the option. The
MP is unable to proceed with the boot up. Communication via the service serial port is supported and
the TechView service tool, (Configuration View), needs to be employed to correct the configuration to
remove the unsupported comm option and return to the previous configuration. The communication
option can only be supported with MP hardware version -05 or newer.
No Application Present
Please Load Application...
No Main Processor Application is present – There are no RAM Test Errors.
//Connect a TechView Service Tool to the MP’s serial port, provide chiller model number (configuration
information) and download the configuration if prompted by TechView. Then proceed to download the
most recent RTWD application or specific version as recommended by Technical Service.
Programming Mode
A command was received by the MP from the Tech View Service Tool and the MP is in the process of
first erasing and then writing the program code to its internal Flash (nonvolatile) Memory. Note that
if the MP never had a prior application already in memory, the error code “Err3”will be displayed instead
of this, during the programming download process.
Software Error 1001: Call Trane Service See item in Main Processor Diagnostics table above
Software Error 1002: Call Trane Service See item in Main Processor Diagnostics table above
Software Error 1003: Call Trane Service See item in Main Processor Diagnostics table above
Table 136. Main Processor (Boot Messages and Diagnostics)
DynaView Display Message
Description
Troubleshooting
Table 137. Limit Conditions
Running - Limited
The chiller, circuit, and compressor are currently running, but the operation of the chiller
(compressor is being actively limited by the controls. Further information is provided by the sub-
mode.
Capacity Limited by High
Cond Press
The circuit is experiencing condenser pressures at or near the condenser limit setting. The compressor will be unloaded
to prevent exceeding the limits.
Capacity Limited by High
Current
The compressor is running and its capacity is being limited by high currents. The current limit setting is 120% RLA (to
avoid overcurrent trips).
Capacity Limited by Low
Evap Rfgt Temp
The circuit is experiencing saturated evaporator temperatures at or near the Low Refrigerant Temperature Cutout
setting. The compressors will be unloaded to prevent tripping.
Capacity Limited by Low
Liquid Level
The circuit is experiencing low refrigerant liquid levels and the EXV is at or near full open. The compressor will be
unloaded to prevent tripping.
Capacity Limited by Phase
Unbalance
The compressor is running and its capacity is being limited by excessive phase current unbalance.