Method of operating a transport refrigeration unit

Details Method of operating a transport refrigeration unit Method of operating a transport refrigeration unit

1991-07-11

1992-06-23

Wayner, William E.

Refrigeration

Processes

Circulating external gas

62127, 236 94, 324503, G05D 2300

Patent

active

051232537

ABSTRACT:
A method of operating a transport refrigeration unit having electrical control which includes a display, including the steps of detecting the occurrence of predetermined events in the transport refrigeration unit, and classifying at least certain of them into first, second and third categories of fault conditions, and into a fourth category related to maintenance associated events. When a first category fault occurs, the unit is shut down, a visual alarm is flashed, and the nature of the fault is immediately identified. When a second category fault occurs, a visual alarm is steadily energized, and the nature of the fault if immediately identified. When third category faults and fourth category events occur, they are stored and periodically displayed, with the display respectively identifying the nature of the fault and the type of maintenance event.

REFERENCES:
patent: 4262736 (1981-04-01), Gilkeson et al.
patent: 4295129 (1981-10-01), Cade
patent: 4387578 (1983-06-01), Paddock
patent: 4663725 (1987-05-01), Truckenbrod et al.
patent: 4857918 (1989-08-01), Nukushina et al.
patent: 4918932 (1990-04-01), Gustafson et al.

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