Diagnostic system for use in an environment control network

Details Diagnostic system for use in an environment control network Diagnostic system for use in an environment control network

1994-04-28

1995-08-29

Ramirez, Ellis B.

Boots, shoes, and leggings

236 495, 62 93, 62126, 165 16, 165100, G01F 106

Patent

active

054466776

ABSTRACT:
The present invention relates to a diagnostic system for use in a network control system. The diagnostic system is preferably utilized to analyze VAV box performance in an environmental control system such as a network facilities management system. The diagnostic system advantageously allows the serviceperson to perform diagnostic tests on VAV boxes from a remote location. Flat box warnings, starved box warnings, box excessive damper hysteresis warnings, oversized box warnings, damper stroke out of bounds warnings, as well as other box and damper warnings may be provided by the diagnostic system. Preferably, the diagnostic system formats the air flow data so that it can be displayed for graphing. The diagnostic system causes individual controls to adjust the damper positions. Air flow parameters for each position are communicated to the remote location.

REFERENCES:
patent: 4549601 (1985-10-01), Wellman et al.
patent: 4630670 (1986-12-01), Wellman et al.
patent: 5058388 (1991-10-01), Shaw et al.
patent: 5071065 (1991-12-01), Aalto et al.
patent: 5311451 (1994-05-01), Barrett

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