Apparatus for monitoring operation of heating and cooling system

Details Apparatus for monitoring operation of heating and cooling system Apparatus for monitoring operation of heating and cooling system

1996-03-14

1997-11-04

Voeltz, Emanuel T.

Boots, shoes, and leggings

34082516, F27D 2100

Patent

active

056847173

ABSTRACT:
Apparatus is provided for monitoring operation of a heating and/or cooling system. The apparatus includes a programmed first processor for processing data relating to selected system operating conditions and for transmitting coded data signals indicative thereof, and a portable display module having an electrical conduit for electrically connecting the module to the first processor to provide one-way electrical communication therebetween. The module further includes a programmed second processor for processing the data signals transmitted by the first processor and a display device which is controlled by the second processor to provide a human readable indication of selected system operating conditions, including the current mode of operation of the system and any detected failure conditions. The first processor includes a memory for storing past system failure conditions. The apparatus includes a memory operable switch for inputting a signal to the first processor. In response to the input signal, the first processor transmits a coded data signal indicative of the last known system failure condition, even if such failure con&ion is no longer present.

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patent: 5495722 (1996-03-01), Manson et al.

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