Refrigeration – With indicator or tester – Operatively correlated with automatic control
Reissue Patent
2004-01-16
2010-12-28
Jiang, Chen-Wen (Department: 3744)
Refrigeration
With indicator or tester
Operatively correlated with automatic control
C062S217000, C062S228100
Reissue Patent
active
RE042006
ABSTRACT:
A diagnostic system includes a controller adapted for coupling to a compressor or electronic stepper regulator valve. The controller produces a variable duty cycle control signal to adjust the capacity of the compressor or valve position of the electronic stepper regulator valve as a function of demand for cooling. The diagnostic system further includes a diagnostic module coupled to the controller for monitoring and comparing the duty cycle with at least one predetermined fault value indicative of a system fault condition and an alert module responsive to the diagnostic module for issuing an alert signal when the duty cycle bears a predetermined relationship to the fault value.
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Bass Mark
Caillat Jean-Luc
Pham Hung M.
Singh Abtar
Emerson Climate Technologies, Inc.
Harness & Dickey & Pierce P.L.C.
Jiang Chen-Wen
LandOfFree
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