Control system for an air temperature changing unit

Details Control system for an air temperature changing unit Control system for an air temperature changing unit

1982-09-14

1984-07-31

Wayner, William E.

Automatic temperature and humidity regulation

High and low temperature alternate

165 11R, 367 93, G05D 2300

Patent

active

044625405

ABSTRACT:
An air conditioner control system comprises an air conditioner which includes a heating unit, a cooling unit and an internal thermostat, a switch unit for activating the air conditioner and a sensor unit for controlling operation of the switch unit. The sensor unit includes a sound level detecting circuit and an air temperature level detecting circuit and is positioned so as to sense the sound level and temperature level in the room in which the air conditioner is installed.
In operation, if the sound level rises above a threshold associated with occupancy of the room, the air conditioner is activated and the heating and cooling units are controlled by the internal thermostat. When the sound level falls below the threshold, after a preset period the air conditioner is activated only when the room temperature departs from a temperature range which is preset in the unit.

REFERENCES:
patent: 4060123 (1977-11-01), Hoffman et al.
patent: 4223831 (1980-09-01), Szarka

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