US 9,810,467 B2
Controlling air conditioner modes
Yi Qu, Coppell, TX (US); Pete Hrejsa, Frisco, TX (US); and Eric Berg, The Colony, TX (US)
Assigned to Lennox Industries Inc., Richardson, TX (US)
Filed by Lennox Industries Inc., Richardson, TX (US)
Filed on Dec. 13, 2012, as Appl. No. 13/714,094.
Prior Publication US 2014/0165612 A1, Jun. 19, 2014
Int. Cl. F25B 49/02 (2006.01); F25B 13/00 (2006.01)
CPC F25B 49/022 (2013.01) [F25B 49/02 (2013.01); F25B 13/00 (2013.01); F25B 2600/0253 (2013.01); F25B 2600/112 (2013.01); Y02B 30/741 (2013.01); Y02B 30/743 (2013.01)] 12 Claims
OG exemplary drawing
 
9. An air conditioner comprising:
a compressor comprising at least two speeds;
an evaporator fan;
wherein the air conditioner comprises at least two operating modes, and wherein the at least two of the operating modes comprise a cooling mode and a dehumidifying mode; and
a controller comprising one or more modules, wherein at least one of the modules comprises a priority module, and wherein the priority module is adapted to:
determine a compressor speed for a compressor of the air conditioner;
determine, in response to a request for operation and the determined compressor speed, which one or more of the at least two operating modes of the air conditioner to allow based at least partially on the determined compressor speed;
wherein determining which one or more of the at least two operating modes to allow comprises:
allowing the cooling mode if the determined compressor speed is greater than a predetermined first speed;
allowing the cooling mode and the dehumidifying mode if the determined compressor speed is less than the predetermined first speed and if the compressor speed is greater than a predetermined second speed; and
allowing only the dehumidifying mode if the determined compressor speed is less than the predetermined second speed and a relative humidity is greater than a predetermined relative humidity value; and
allowing the cooling mode if the determined compressor speed is less than the predetermined second speed and the relative humidity is less than or equal to the predetermined relative humidity value;
wherein the predetermined first speed is greater than the predetermined second speed.