Variable refrigerant package

Abstract

A variable refrigerant package air conditioner is shown that is easy to install in new construction with a unique base that causes collected mixture that overflows to drain outside the building. A control system is shown that has motors and compressor that are pulse width modulated so the air conditioner is infinitely variable while maintaining the highest possible power factor. Dehumidification of outside air occurs as it is mixed with inside air. By gradually approaching a temperature set point and even reheating after dehumidification, moisture is removed from the room.

What I claim is: 
     
       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. 
 
     
     
       2. The method of installing a variable refrigerant package as cited in  claim 1  wherein said further comprising connecting of said drain basin to said building drain includes the step of, comprising (i) selecting one of multiple building drain tubes connected to said drain basin, each of said one of multiple building drain tubes having an end cap thereon, and (ii) removing said endcap end cap of said selected one of multiple building drain tubes, wherein only said selected drain tube being is connected to said building drain. 
     
     
       3. The method of installing a variable refrigerant package as cited in  claim 2  said first installing wherein installing a plenum includes the step of dividing said plenum between outside air drawn into said variable refrigerant package and air being discharged to outside, said dividing being by plenum divider baffle. 
     
     
       4. The method of installing a variable refrigerant package as cited in  claim 3  wherein said plenum is telescoping with a lower part sloping toward an outside wherein said overlapping of said drain basin overlaps with said plenum causes in a manner to configured to cause moisture to drain towards said outside. 
     
     
       5. The method of installing a variable refrigerant package as cited in  claim 4  including a last step of closing a door on said closet, which door has a return air duct for allowing air flow from said room to said variable refrigerant package. 
     
     
       6. The method of installing a variable refrigerant package as cited in  claim 1 , further comprising:
 installing a duct adapter on an end of said heating/cooling duct near a top of said closet; and   connecting said duct adapter to supply duct flanges.    
     
     
       7. The method of installing a variable refrigerant package as cited in  claim 1 , further comprising:
 connecting said drain basin to said building drain, wherein said drain basin overlaps said plenum to provide secondary drainage through said plenum if said building drain becomes clogged.