US RE50,414 E1
Variable refrigerant package
Kevin L. Eicher, Seguin, TX (US); George C. Cagle, San Antonio, TX (US); Eduardo J. Guerrero, Helotes, TX (US); and Bascom Clayton Cotner, San Antonio, TX (US)
Assigned to Friedrich Air Conditioning, LLC, San Antonio, TX (US)
Filed by Friedrich Air Conditioning, LLC, San Antonio, TX (US)
Filed on May 25, 2022, as Appl. No. 17/824,673.
Application 17/824,673 is a division of application No. 14/975,166, filed on Dec. 18, 2015, granted, now 10,488,083, issued on Nov. 26, 2019.
Application 17/824,673 is a reissue of application No. 15/835,784, filed on Dec. 8, 2017, granted, now 10,663,197, issued on May 26, 2020.
Int. Cl. F25B 13/00 (2006.01); F24F 1/027 (2019.01); F24F 3/14 (2006.01); F24F 13/20 (2006.01); F25B 41/26 (2021.01); F25B 49/02 (2006.01); F24F 11/00 (2018.01); F24F 13/22 (2006.01)
CPC F25B 13/00 (2013.01) [F24F 1/027 (2013.01); F24F 3/1405 (2013.01); F24F 13/20 (2013.01); F25B 41/26 (2021.01); F25B 49/02 (2013.01); F25B 49/025 (2013.01); F24F 2003/1446 (2013.01); F24F 2011/0002 (2013.01); F24F 2013/227 (2013.01); F25B 2600/021 (2013.01); F25B 2600/2513 (2013.01); Y02B 30/70 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of installing a variable refrigerant package through a door in a closet located adjacent an outside wall in new construction of rooms for hotels/motels having a building drain, a power source and heating/cooling ducts, said method including the following steps:
first installing a plenum through said outside wall to an inside of said closet;
second installing a duct adapter on an end of said heating/cooling duct near a top of said closet;
selecting a base having a configuration commensurate with said closet in which said variable refrigerant package is to be installed;
securing said base in a bottom of said closet, said base having a drain basin in a top thereof connected to said building drain, said drain basin overlapping said plenum to provide secondary drainage through said plenum if said building drain becomes clogged, said base not being attached to said variable refrigerant package;
locating a wall controller inside said room with a connection to a thermostat plug inside said closet;
third installing said variable refrigerant package through said door of said closet so that (a) said variable refrigerant package presses against a plenum gasket, (b) said variable refrigerant package rests on a base gasket of said base with an evaporator drain terminating above said drain basin, said base gasket being located on top of a raised rim seat, (c) said duct adapter is connected to supply duct flanges, and (d) [ (c) ] said variable refrigerant package is plugged into said power plug and said thermostat plug [ operably connected to said power source and said thermostat] ; said third installing step has installation rails mounted under said variable refrigerant package which during said third installation are received in channels found in said top of said base, said installation rails holding said variable refrigerant package in position;
wherein said variable refrigerant package comprises at least one fresh air module having a fan comprised of a fan blade and a motor within a housing, said fan in communication with a chamber within said at least one fresh air module, and wherein said at least one fresh air module is located between said outside air and said path for said indoor entering air, said at least one fresh air module drawing a portion of said outside air there through, and mixing the portion of said outside air with said indoor entering air in front of an evaporator so that said evaporator will remove moisture from said the portion of said outside air flowing there through, a reheater coil in communication with said evaporator, said reheater coil providing active dehumidification of a portion of said mixed air, a condenser fan, at least one of a blower assembly and/or a compressor being variable in speed by pulse width modulation;
providing a notch in said raised rim seat, said notch to receive a lower end of said evaporator drain there through, said lower end of said evaporator drain plugging said notch; and
wherein said installation may be completed by non-certified personnel [ ; and
wherein said variable refrigeration package comprises installation rails mounted thereunder, which installation rails are received in channels in said top of said base, said installation rails holding said variable refrigerant package in position on the base] .