Johnson Controls Technology Company

Johnson Controls Tyco IP Holdings LLP

York International Corporation

Harold J Dubensky

Kevin R Stockton

James K Spitzer

Roderick Ray Sentz

Wayne Joseph Pierjok

Jyotindra S Shah

Robert H Edgell

David P Gillmen

Sandeep K Chodapaneedi

Martin Dale Weatherd

Anthony J Reardon

Siddappa R Bidari

Nivedita Nath

Bhushan D Vichare

Gnanesh Suvvada

Dennis Timothy Diamond

Keith L Glatfelter

William J Skinner, Jr

David A Shearer

Ryan E Hill

Robert E Bender

Lindsey C Walker

Bryan Burnworth

Jack Yue Jia

Dennis R Runkle

Dennis Wayne Smith

Kevin Lee Stein

Justin M Fantom

Nathan E Pears

Deepak S Kollabettu

A fan assembly is provided. The fan assembly includes a fan, a motor that is coupled to the fan, and a variable frequency drive (VFD) that is coupled to the motor. The motor includes a maximum rated speed that is greater than a maximum structural speed limit of the fan, and the VFD includes a current output limit configured to limit an operational speed of the motor to be less than or equal to the maximum structural speed limit of the fan.

Systems and methods for controlling fan motors with variable frequency drives

Embodiments of the present disclosure relate to a heating, ventilation, and/or air conditioning (HVAC) system that includes a first control configured to control a supply of power to a plurality of compressors based on an air flow through the HVAC system exceeding a first threshold, and a second control configured to supply power to a subset of compressors of the plurality of compressors based on the air flow through the HVAC system exceeding a second threshold while being below the first threshold.

Low load mode of HVAC system

A heating, ventilation, and air conditioning system includes an air moving device configured to move air through the HVAC system, a first variable frequency drive (VFD) configured to drive the air moving device, and a second VFD configured to drive the air moving device, wherein the first VFD and the second VFD are configured receive control instructions and to selectively operate based on the control instructions.

Variable frequency drives systems and methods

An HVAC&R system including a blower system having a vertical motor adjustment is provided. The HVAC&R system includes a cooling unit, a heating unit, an air conditioning unit, and a blower unit. The blower unit includes a blower assembly having a fan unit within a fan unit support frame. A motor attached to a height adjustable motor base is attached to a top surface of the fan unit support frame.

Adjustable motor base for an HVAC&R blower motor

An air handling unit (AHU) for housing a number of components used in a heating or cooling system to provide forced air for climate control in a particular structure includes a single raceway construction having both low thermal conductivity and enhanced mechanical properties for use with lifting the AHU; a single insulated panel construction having a minimum number of components as well as enhanced mechanical properties for use as the floor in an AHU compartment; to minimize costs associated with fabrication and installation.

Raceway construction for an air handing unit

A support system for an air handling unit (AHU) including a first rail supporting the AHU and a second rail supporting the first rail. A vibration isolator is disposed between the first rail and the second rail to vibrationally isolate the AHU from the second rail. The vibration isolator includes a spring secured between opposed spring retainers. An adjusting member threadedly receives the upper spring retainer. The first rail structurally carries the guide member along at least two positions. An angle is secured to the second rail, and the second end of the structural member slidably engages the guide member. Rotating the adjusting member with respect to the spring retainer in one direction compresses the spring between the spring retainers to support the weight of the first rail and the AHU. The angle constrains the AHU to movement along the guide member.

Vibrationally isolated support construction for an air handling unit

Growing community of inventors

Lancaster, PA, United States of America

Harold J Dubensky