Trane CCUN 205-211 User Manual page 24

Chiller control system
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24
Diagnostics
The following diagnostic table
contains all the diagnostics
possible. Not all data is available
unless tech view is connected.
Code: Three digit hexadecimal code
used on all past products to
uniquely identify diagnostics.
Diagnostic Name: Name of
Diagnostic and its source. Note that
this is the exact text used in the
User Interface and/or Service Tool
displays.
Severity: Defines the severity of the
above effect. Immediate means
immediate shutdown of the effected
portion, Normal means normal or
friendly shutdown of the effected
portion, Special Mode means a
special mode of operation (limp
along) is invoked, but without
shutdown, and Info means an
Informational Note or Warning is
generated.
Persistence: Defines whether or not
the diagnostic and its effects are to
be manually reset (Latched), or can
be either manually or automatically
reset (Nonlatched).
Criteria: Quantitatively defines the
criteria used in generating the
diagnostic and, if nonlatching, the
criteria for auto reset. If more
explanation is necessary a hot link
to the Functional Specification is
used.
Reset Level: Defines the lowest level
of manual diagnostic reset
command which can clear the
diagnostic. The manual diagnostic
reset levels in order of priority are:
Local and Remote. A diagnostic that
has a reset level of Local, can only
be reset by a local diagnostic reset
command, but not by the lower
priority remote Reset command
whereas a diagnostic listed as
Remote reset can be reset by either.
CG-SVU02B-E4

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