Diagnostics - Trane R Series Installation Operation & Maintenance

Table 33 Diagnostic List
Diagnostic
Hex Name and
Code Source
3D8 At Speed Input
Opened
3D6 At Speed Input
Shorted
398 BAS Communi-
cation Lost
RTHD-SVX01D-EN

Diagnostics

The following diagnostic Table contains all the diagnostics possible. Not all
data is available unless TechView is installed.
Hex Code: 3 digit hexadecimal code used on all past products to uniquely
identify diagnostics. Refer to the database \\SRV-et-data\ucp3\service-
tool\databases\servicetool.mdb
Diagnostic Name and Source: Name of diagnostic and its source. Note
that this is the exact text used in the User Interface and/or Service Tool dis-
plays.
Severity: Defines the severity of the above effect. Immediate means imme-
diate 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 neces-
sary 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.
Severity Persistence
Immediate Latch
Immediate Latch
Special
Criteria
The "At Speed" input was found to be opened with
the compressor motor running after successfully
obtaining an at speed and bypassed condition. This
is active for solid state starters only
The "At Speed" input is shorted before the
compressor was started. This is active for only solid
state starters.
The BAS was setup as "installed" at the MP and the
Comm 3 llid lost communications with the BAS for
15 contiguous minutes after it had been established.
Refer to Section on Setpoint Arbitration to
determine how setpoints and operating modes may
be effected by the comm loss. The chiller follows
the value of the Tracer Default Run Command which
can be previously written by Tracer and stored
nonvolatilely by the MP (either use local or
shutdown).
Reset
Level
Local
Local
Remote
145