Method and apparatus for predictive maintenance of HVACR systems

Details Method and apparatus for predictive maintenance of HVACR systems Method and apparatus for predictive maintenance of HVACR systems

1994-08-15

1997-01-21

Voeltz, Emanuel T.

Boots, shoes, and leggings

36455101, G06F 1700

Patent

active

055965075

ABSTRACT:
Predictive maintenance method and apparatus for use with heating, ventilation, air-conditioning and/or refrigeration (HVACR) systems are disclosed. The preferred apparatus includes a dozen temperature sensors strategically located within and HVACR system to sense various operating temperatures and three electrical current sensors to sense various operating electrical currents. HVACR system conditions are measured periodically by an on-site service technician and inputted to a computer that identifies and reports the potential trouble spots represented by out-of-range measurements. The computer is programmed to produce graphs, tables and prediction commentary.

REFERENCES:
patent: 4985857 (1991-01-01), Bajpai et al.
patent: 5311562 (1994-05-01), Palusamy et al.
patent: 5355444 (1994-10-01), Chirico
Krieder, et al. "Expert Systems, Neural Networks And Artificial Intelligence In Commerical Building HVAC Operations" Automation In Construction v. 1, n. 3 (1992) pp. 225-238.
Bourdeau et al. "Computer Aided System For Breakdown Diagnosis and Repairing Assistance of HVAC Components" 2nd Finnish-French Colloqium For Information Technology v. 118 1990 pp. 153-158.
"Service Tech Develops Predictive Maintenance Program", Leonard Ogden, Aug. 16, 1993, Air Conditioning, Heating & Refrigeration News, pp. 17-19.
"Technician's Computer Program Shows the Birth of Innovation", W. J., Editor's Page, Aug. 30, 1993, Air Conditioning, Heating & Refrigeraiton news, p. 16.

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