Controlling HVAC test functions

Details Controlling HVAC test functions Controlling HVAC test functions

1990-07-16

1991-08-27

Tanner, Harry B.

Refrigeration

With indicator or tester

Diverse function indicators or testers

62157, 236 94, G01M 100

Patent

active

050422650

ABSTRACT:
A method of controlling the operation of an HVAC system comprising the steps of: accepting an input; selecting a first mode of operation if the input has a value in excess of a first predetermined limit; selecting a second mode of operation if the input has a value less than a second predetermined limit; selecting a third mode of operation if the input has a value which is between the second and the first predetermined limits.

REFERENCES:
patent: 4289272 (1981-09-01), Murase et al.
patent: 4419866 (1983-12-01), Howland
patent: 4470266 (1984-09-01), Briccetti et al.
patent: 4538419 (1985-09-01), Lord
patent: 4688389 (1987-08-01), Iida

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