Carrier Corporation

Waterfurnace International, Inc.

George Yang

Michael Gerard Taylor

Robert R Brown

Timothy Hammond

Bruce L Henderson

Caleb Chichester

Troy Moon

Nicholas Hartman

Chris Mann

Aaron Lindsey

Matthew Kolter

Michael W Branson

Michael Collins

Dana L Brechbill

Michael John O'Brien

David W Hamilton

A space conditioning system and method for monitoring electrical parameters and/or thermodynamic parameters relating to the heat of extraction/rejection or power consumption of the system and to communicate the monitored parameters to an external device.

Space conditioning control and monitoring method and system

A controller for controlling a heater associated with the crankcase of a compressor senses electrical current flowing through the heater. The sensing is preferably accomplished by a transformer in combination with an amplifier providing a feedback signal to the controller. The transformer is installed in the line which carries the electrical current flowing through the heater. The controller checks for the presence of an appropriate voltage level from the amplifier. In the event that the voltage level is not above a threshold level, the controller sends an alarm signal indicating that the heater is not operating properly.

Crankcase heater control

Housing is provided for electronic circuitry that monitors the operation of a compressor. The housing includes a module containing the electrical circuitry as well as electrical connectors that connected the circuitry to external wiring. The module is mounted to an external housing member. The wiring inserts through an opening in the external housing member before being connect to the electrical connectors associated with the electronic module. Further openings in the housing member receive conduits carrying further wiring. The conduits extend outwardly from the housing member so as to allow the wiring in the conduits to be supported for an appreciable distance from the housing. A removable housing member is connected to the aforementioned housing member so as to cover the wiring connected to the electrical connectors associated with the electronic module. The removable housing member is easily removed from the aforementioned housing member so as to thereby allow access to the various connections of wiring to the electrical connectors associated with the electronic module.

Compressor electronics housing

An electronic pressure sensor is incorporated into a discharge pressure portion of a compressor. If the pressure sensor indicates that the discharge pressure exceeds a maximum value, the operation of the compressor motor is stopped. The pressure sensor preferably sends an electronic signal to a microprocessor such that the pressure can be compared to a predetermined maximum value. The pressure sensor includes a transducer to change the sensed pressure to a voltage value. The microprocessor communicates with a first switch, which may be a triac switch, and which stops operation of the compressor motor should an undesirably high value be detected. In addition, a second switch communicates with a comparing circuit which ensures the voltage from the pressure sensor is between a minimum and maximum value. The purpose of the comparing circuit is to ensure proper operation of the pressure sensor and its associated circuit.

Fail safe electronic pressure switch for compressor motor

Growing community of inventors

Fort Wayne, IN, United States of America

George Yang