Tyco Fire + Security Gmbh

Johnson Controls Tyco IP Holdings LLP

Johnson Controls Light Commercial IP Gmbh

Rakesh Mathew

Lester Dale Sherrow

Andrew Michael Boyd

Tom R Tasker

Madhuka Manuranga Jayarathne

Rohan Bhuse

Daniel William Davis, Ii

Bennie Dale Hoyt

A variable capacity furnace includes a variable capacity fuel valve configured to supply a fuel to a burner, where the variable capacity fuel valve is configured to be controlled to a target setting over a range of settings to modulate an amount or flow rate of the fuel supplied to the burner. The variable capacity furnace also includes a control assembly having processing circuitry and memory circuitry. The memory circuitry includes instructions stored thereon that, when executed by the processing circuitry, cause the processing circuitry to execute a control algorithm to determine, based on whether an indoor temperature is progressing toward a set point over time and based on a temperature differential between the set point and the indoor temperature, a target setting of the variable capacity fuel valve. The instructions also cause the processing circuitry to control the variable capacity fuel valve to the target setting.

Variable capacity furnace control

A baffle for a furnace of a heating, ventilation, and air conditioning (HVAC) system includes a mounting flange configured to be secured to a housing of the furnace. The baffle also includes a first panel extending from the mounting flange into an air flow path extending through the furnace and a second panel extending from the first panel toward the housing.

Angled baffles for a heat exchanger

A system includes a modulating furnace and control circuitry. The control circuitry is configured to receive a call for heating associated with a quick heat cycle. In response to the call for heating, the control circuitry is also configured to operate the modulating furnace in a quick heat operating mode for a threshold time period. Subsequent to the threshold time period, the control circuitry is also configured to operate the modulating furnace in a modulating heat operating mode.

Quick heat algorithm for modulating heating equipment

A heat exchanger (e.g., a furnace) for a heating, ventilation, and/or air conditioning (HVAC) system includes a condensate pan having a first opening defined in a surface of the condensate pan. The condensate pan is configured to receive liquid condensate via the first opening, and the first opening comprises a first cross-sectional area. The furnace further includes a pocket comprising a wall circumscribing and defining a second opening. The second opening has a second cross-sectional area greater than the first cross-sectional area of the first opening of the condensate pan. The pocket is configured to be coupled to the surface of the condensate pan such that the wall of the pocket surrounds the first opening in the surface of the condensate pan.

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Wichita, KS, United States of America

Rakesh Mathew