US 12,392,508 B1
Heating, air conditioning, and dehumidification (“HACD”) systems based on legacy form factor
Zev Lichtenstein, Monroe, NY (US); and Isaac Lichtenstein, Monroe, NY (US)
Assigned to Rockland HAC Corporation, Monroe, NY (US)
Filed by Rockland HAC Corporation, Monroe, NY (US)
Filed on Dec. 30, 2024, as Appl. No. 19/005,075.
Int. Cl. F24F 1/26 (2011.01); F24F 11/65 (2018.01); F24F 11/86 (2018.01)
CPC F24F 1/26 (2013.01) [F24F 11/65 (2018.01); F24F 11/86 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A heating, air conditioning, and dehumidification (“HACD”) system comprising:
an outdoor system, the outdoor system comprising:
a compressor;
a fully controlled condenser fan;
a condenser coil;
a 4-way reheat valve; and/or
a 3-way reheat valve;
an indoor system, the indoor system comprising:
a hot gas reheat coil;
a thermal expansion valve (“TXV”);
a check valve;
a metering device;
a blower motor; and
a flat evaporator coil;
a refrigerant; and
a refrigerant piping system, the refrigerant piping system comprising:
a first pipe, the first pipe being a compressor discharge pipe, the first pipe being coupled from the compressor to the 3-way reheat valve, the 3-way reheat valve configured to output the refrigerant to the condenser coil and the hot gas reheat coil;
a second pipe, the second pipe being coupled, via the check valve, from the hot gas reheat coil to the condenser coil, the check valve configured to output the refrigerant to the condenser coil;
a third pipe, the third pipe being coupled, via the metering device, from an outlet of the condenser coil to an input of the flat evaporator coil, the metering device configured to output the refrigerant to the flat evaporator coil; and
a fourth pipe, the fourth pipe being a suction line pipe, the fourth pipe being coupled from an outlet of the flat evaporator coil to an input of the compressor, the fourth pipe configured to output the refrigerant to the compressor; and
wherein:
the hot gas reheat coil is located a threshold distance from the flat evaporator coil thereby avoiding a heat loss;
the fully controlled condenser fan is configured to transport air over the condenser coil;
the blower motor is configured to transport air over the flat evaporator coil;
the TXV is configured to control an amount of refrigerant released into the flat evaporator coil; and
the indoor system is configured to be confined to a form factor footprint such that physical dimensions of the indoor system are less than or equal to about 28×25.5×52 inches.