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ARTC-SVX013A-EN
Table 10. HMI settings menu screens
Screen User Interface Function Access
Compressor
Setup
• Display and adjust compressor specific
parameters.
• See T3C Documentation for specifics on
the settings with the exceptions.
– Parameters Compressor Motor
Power and Rated Power
Consumption require that the
controller be power cycled to fully
accept any changes to these values.
– IGV Stage Down Pos. – The chiller
will stage down compressors
independently of the LUZ calculations
above if IGV open position drops
below this value.
– Parameters Max Start Pressure Ratio
(MAX) and Stage-In Timeout work
together insofar as, at the point of
stage in, the chiller assesses if the
system pressure ratio is below MAX.
If it is, staging proceeds, otherwise,
the chiller puts running compressors
into Retreating and starts to reduce
system demand in an effort to bring
system pressure ratio below MAX.
– Power @ Max and Speed @ Max are
also evaluated as part of Stage-In
Logic.
Main Menu > Settings Menu >
DTC
Operating Procedures
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