Unitary control for air conditioner and/or heat pump

Details Unitary control for air conditioner and/or heat pump Unitary control for air conditioner and/or heat pump

2006-09-01

2008-11-04

Norman, Marc E (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C417S015000, C417S044110, C417S045000

Reexamination Certificate

active

07444824

ABSTRACT:
A unitary control for operating at least the fan and compressor of a climate control apparatus in response to signals received from a thermostat, the unitary air conditioning control includes a circuit board, a microprocessor on the circuit board; a first relay on the circuit board operable by the microprocessor, to connect a fan connected thereto to line voltage, and having first and second contacts at least one of which is connected to the microprocessor; and a second relay on the circuit board operable by the microprocessor, to connect a fan connected thereto to line voltage, and having first and second contacts connected to the microprocessor.

REFERENCES:
patent: 5142880 (1992-09-01), Bellis
patent: 5809793 (1998-09-01), Shutt et al.
patent: 6158230 (2000-12-01), Katsuki
patent: 6457461 (2002-10-01), Romzek
patent: 6508072 (2003-01-01), Kanazawa et al.

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