Carrier Corporation

Eugene D Daddis, Jr

Bradley Lynn Kersh

Ronald J Duppert

Kenneth J Nieva

John W Schedel

John G Charles, Sr

Joe W Dark

Benny P Dimarco

Richard G Lord

Lee George Tetu

Kwok Kwong Fung

Robert Hong Leung Chiang

Thomas P Bruce

Sue-Li Kingsley Chuang

Philip L Lavrich

William P Timmons

Eric B Fraser

Michael Balistreri

Ronald D Haven

Steven Glowacki

Algirdas Bielskus

A method for fan speed control for a condenser fan in an air conditioning system includes determining a refrigerant condition at an inlet of a compressor by a condenser fan speed control module; determining a refrigerant condition at an outlet of the compressor by the condenser fan speed control module; determining a parabolic curve of a relationship between an air conditioning system performance metric and a speed of the condenser fan based on the determined inlet condition and the determined outlet condition by the condenser fan speed control module; identifying an optimum condenser fan speed based on a vertex of the parabolic curve by the condenser fan speed control module; and controlling the speed of the condenser fan to meet the optimum fan speed by the condenser fan speed control module.

Condenser fan speed control for air conditioning system efficiency optimization

A method of operating an air conditioning system includes cooling a selected space with the air conditioning system. The air conditioning system includes two or more compressors and two or more crank case heaters. Each crank case heater of the two or more crank case heaters is operably connected to a compressor of the two or more compressors. Operation of the two or more compressors is stopped, thus initiating operation of the two or more crank case heaters. The air conditioning system is switched to a conservation mode, including de-powering at least one compressor of the two or more compressors and a connected at least one crank case heater or the two or more crank case heaters.

Method of operating an air conditioning system including reducing the energy consumed by the compressor crank case heaters

A rooftop air conditioning unit to provide conditioned air to a conditioned space within a building is provided and includes a housing, disposed on a roof of the building roof, defining a pathway from an inlet fed by exterior and/or interior air to an outlet leading to the conditioned space and a hydronic heating system disposed within the housing to heat the air traveling along the pathway.

Rooftop hydronic heating unit

A refrigerated merchandiser () includes an upright, open-front, insulated cabinet () defining a product display area () connected in airflow communication with a compartment () via an air circulation circuit (). An evaporator () and a plurality of spaced fans () are disposed in a forced draft arrangement within compartment () with flow baffle () disposed therebetween to provide increased flow resistance whereby a more uniform velocity profile is provided entering the evaporator.

Refrigerated merchandiser with flow baffle

A containment system for a packaged air conditioning unit is disclosed comprising a base pan, a first unit wrapper, a second unit wrapper, a compressor compartment partition, a condenser compartment partition, and a top cover having an indoor section and an outdoor section. The unit wrappers and the compartment partitions are guided into position during installation by engaging a notch formed on the wrapper or partition with a positioning cleat formed on the base pan. Because the unit wrappers and the partitions firmly abut the base ban throughout their length, these components help to laterally stiffen the base pan.

Containment system for packaged air conditioning unit

Mourning apparatus for retaining and isolating a machine subject to vibratory forces. A base plate having a series of raised bosses on its top surface is equipped with rubber grommets that are received upon each boss. Each grommet has an expanded foot and an elongated body that is insertable into the mounting hole of a machine support bracket. A weakened section is provided in the top part of each body that expands radially when the body is compressed to provide an upper flange for capturing the support bracket between the foot piece and the upper flange. Each grommet is compressed by passing a bolt axially through the grommet and through the bolt into the boss.

Simplified compressor mount with self forming grommet

A secondary heat exchanger suitable for use in a condensing furnace which is in the form of a bank of a plurality of metal tubes which are positioned in a plurality of stacked rows. The tubes are interconnected to form a continuous fluid flow path and have a uniform adherent corrosion resistant polymeric internal surface. The tubes further contain a longitudinal seam which is formed by crimping the edges of the tube together to provide for the compression of two polymer surfaces together thereby forming a seal capable of maintaining its integrity at conventional design pressures.

Secondary heat exchanger for condensing furnace

The invention is a blower assembly for a packaged climate control unit such as a packaged air conditioning or heating unit. An orifice ring for receiving and guiding rotation of a blower wheel of the assembly is made detachable so that the wheel can be inserted into and retrieved from the top of the blower assembly housing. Further, the blower assembly may comprise an improved motor stand having vertically oriented pegs which are received by receptacles formed about the outer surface of the motor. When the assembly is installed in packaged unit having a detachable top section, both the blower wheel and the blower wheel motor can be retrieved from the packaged unit for servicing or replacement without removing the blower assembly housing from the packaged unit.

Air conditioning blower motor assembly with improved accessibility

A porous silicon carbide insert is located in the burner and defines the burner head. This provides a larger area for the flame to attach to the burner head since the porous insert causes the gas/air mixture to flow from the entire burner head. A more stable flame results and the flame is unable to travel back into the burner venturi through the insert.

Burner with ceramic insert

A spiral, perforate ceramic baffle is placed into a heat exchanger in facing relationship with the burner and in an overhung relationship to the heat exchanger. A primary air/fuel mixture in the flame from the burner passes into the baffle drawing secondary air into the overhung portion of the baffle cooling the burner flame. Turbulence of the burner flame pattern in the baffle changes heat exchanger harmonic resonance and reduces burner noise.

Growing community of inventors

Nedrow, NY, United States of America

Eugene D Daddis, Jr