Diagnostics - Trane CGAM Installation & Operation Manual

Diagnostics

Explanatory Comments
Diagnostic Text:
Black text is intended for use onTechView. It has no
intrinsic length limit. It should contain few or no
abbreviations.
Blue (italicized) text is intended for use on DynaView. It has
a 40 character length limit for English and other European
languages, based on 8 pixel character width (DynaView's
display is 320 pixels wide). The text should be abbreviated as
necessary to meet the length limit. Trane standard
abbreviations or ASME standard abbreviations (ASME Y14.38-
1999 or later) should be used wherever possible.
Orange (underlined) text is intended for use on LCI-C. LCI-
C has a 28 character length limit for English and other
European languages, based on one character per byte
(LCI-C diagnostic text has a 28 byte limit). It should be
abbreviated as necessary to meet the length limit. Trane
standard abbreviations or ASME standard abbreviations
(ASME Y14.38-1999 or later) should be used wherever
possible. "Comm:" is the standard abbreviation for
"Comm Loss:" in order to leave enough space for the rest
of the diagnostic text.
Legacy Hex Code:Three digit hexadecimal code used on
all past products to uniquely identify diagnostics.
Diagnostic Name and Source: Name of Diagnostic and
its source. Note that this is the exact text used in the User
Interface and/or ServiceTool displays.
The following codes were added to cover the unmapped
diagnostics:
• 6B6: Unknown Chiller Diagnostic
• 6B7: Unknown Compressor Diagnostic
Affects Target: Defines the "target" or what is affected
by the diagnostic. Usually either the entire Chiller, or a
particular component is affected by the diagnostic (the
same one as the source), but in special cases functions are
modified or disabled by the diagnostic. None implies that
there is no direct affect to the chiller, sub components or
functional operation.
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 Warning 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).
Active Modes [Inactive Modes]: States the modes or
periods of operation that the diagnostic is active in and, as
necessary, those modes or periods that it is specifically not
active in as an exception to the active modes.The inactive
CG-SVX17E-EN
modes are enclosed in brackets, [ ]. Note that the modes
used in this column are internal and not generally
annunciated to any of the formal mode displays
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.
HelpText: Provides for a brief description of what kind of
problems might cause this diagnostic to occur. Both
control system component related problems as well as
chiller application related problems are addressed (as can
possibly be anticipated).These help messages will be
updated with accumulated field experience with the
chillers.
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