Temperature control system and controller therefor

Details Temperature control system and controller therefor Temperature control system and controller therefor

1993-05-21

1996-03-05

Ford, John K.

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

165 22, 165 27, 236 493, 236 78B, 236 1B, 236 1C, F25B 2900

Patent

active

054958873

ABSTRACT:
A temperature control system for a building structure such as a household is divided into a plurality of zones. A controller acts between temperature sensing devices in each of the zones and an adjustable thermostat which allows the desired temperature in the building structure to be selected. The controller allows individual zones to be selected to receive conditioned air and allows one of the selected zones to be designated as a control zone. A heating or cooling decision for the temperature control system for all of the selected zones is made based on the difference between the thermostat setting and the output of the temperature sensing device in the control zone. The control zone can be changed manually to the next available selected zone. Different visual indications are given for the control zone and the selected zones. Zones with faulty temperature sensing devices cannot be control zones or selected zones.

REFERENCES:
patent: 3724534 (1973-04-01), Weatherston
patent: 4530395 (1985-07-01), Parker et al.
patent: 4673029 (1987-06-01), Beachboard
patent: 4830095 (1989-05-01), Friend
patent: 4886110 (1989-12-01), Jackson
patent: 4931948 (1990-06-01), Parker et al.
patent: 4997029 (1991-03-01), Otsuka et al.
patent: 5181653 (1993-01-01), Foster et al.
patent: 5303767 (1994-04-01), Riley
patent: 5333676 (1994-08-01), Mizuno

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