Fault Detection and Diagnostics for Rooftop Air Conditioners

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LIST OF TABLES
Table 1-1 Fault diagnosis rules ..........................................................................................22
Table 1-2 χref
and ∆ T
cond,
abnorm
with compressor off and nominal charge and 1% noncondensable
gas..........................................................................................................39
Table 1-3 χref
and ∆ T
cond,
abnorm
with compressor off and ambient temperature=30 o C and
1% non-condensable gas............................................................................................40
Table 2-1 FDD results of Modular School sites ................................................................82
Table 2-2 FDD results of McDonalds Restaurant Sites.....................................................83
Table 2-3 FDD results of Walgreen Retail Store Sites at Rialto.......................................83
Table A1-1 TXV rating settings.......................................................................................103
Table A1-2 Comparison of TXV modeling error ............................................................107
Table A2-1 Thermal resistance distribution of thermocouple measuring scheme ..........111
Table A2-2 Thermal resistance distribution of RTD measuring scheme ........................111
Table A2-3 Thermal resistance distribution of RTD for measuring cold water ..............112
Table A2-4 Thermal resistance distribution of RTD for measuring refrigerant vapor ....112
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