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Control System for a Room Air Conditioner and/or Heat Pump

  • US 20110125328A1
  • Filed: 04/19/2010
  • Published: 05/26/2011
  • Est. Priority Date: 11/24/2009
  • Status: Active Grant
First Claim
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1. An electronic control system for communicating with an end user of a room air conditioner and/or heat pump having a compressor, an accumulator, refrigerant/heating fluid, outdoor coil, indoor coil, switching valve, cooling/heating capillary tube, a fan and a blower;

  • said electronic control system comprising;

    sensor inputs for determining (a) pressure of said refrigerant/heating fluid, (b) temperature of indoor air, (c) temperature of outdoor air, (d) temperature of said outdoor coil, (e) temperature of said indoor coil (f) temperature of air on discharge side of said indoor coil and (g) humidity of indoor air;

    outputs for controlling (a) said compressor, (b) said reversing valve, (c) said fan and (d) said blower;

    between said sensor inputs and said outputs being located a main control and a user interface connected thereto, said main control including a microcontroller and said user interface including a microcomputer;

    said microcontroller performing diagnostic testing to detect faults in said air conditioner/heat pump and, if a fault or faults are detected, provide a fault indication to an end user via said user interface; and

    said microcomputer recording a history of said fault or said faults.

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