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US 11,376,454 B2Granted
Integrated air distribution system and fire suppression system
AssigneeAir Distribution Technologies IP, LLC
InventorsJames E. Bogart, Derek M. Sandahl
Life of this patent
Estimating the term…
Abstract
Embodiments of the present disclosure relate to an air handling unit having a housing that defines an air flow path therethrough, a heat exchanger disposed within the air flow path and configured to flow a working fluid therethrough, and a nozzle configured to deliver a fire suppression agent into the air flow path.
Claims17
An air handling unit, comprising:
- a housing that defines an air flow path therethrough, wherein the housing comprises an opening configured to direct an air flow within the housing to a space external to the housing;
- a heat exchanger disposed within the air flow path and configured to flow a working fluid therethrough;
- a fan disposed within the housing and configured to increase a speed of the air flow directed from the housing to the space via the opening;
- a nozzle configured to deliver a fire suppression agent into the air flow path, wherein the nozzle is disposed within the housing upstream of the opening and downstream of the fan relative to a direction of the air flow through the housing;
- and
- a controller configured to:
- operate the fan to increase the speed of the air flow to a first speed based on a detection of a first amount of the fire suppression agent directed into the air flow path via the nozzle;
- and
- operate the fan to increase the speed of the air flow to a second speed based on a detection of a second amount of the fire suppression agent directed into the air flow path via the nozzle, wherein the second amount is greater than the first amount, and the second speed is greater than the first speed.
6 more elements
An air distribution system for a heating, ventilation, and/or air conditioning (HVAC) system, comprising:
- a housing defining an air flow path and having a first opening and a second opening, wherein the housing is configured to receive an air flow via the first opening, direct the air flow through the air flow path, and deliver the air flow via the second opening to a space external to the housing;
- a heat exchanger disposed within the air flow path, wherein the heat exchanger is configured to flow a working fluid to facilitate heat exchange between the working fluid and the air flow;
- a fan disposed within the housing and configured to drive the air flow through the air flow path, wherein the fan is a variable speed fan;
- a fire suppression system including a vessel configured to store a fire suppression agent and a nozzle configured to deliver the fire suppression agent from the vessel into the air flow path, wherein the vessel is disposed within the housing;
- and
- a controller configured to:
- operate the fire suppression system to deliver the fire suppression agent into the air flow path;
- operate the fan at a first speed to deliver the air flow to the space via the second opening in response to suspended operation of the fire suppression system;
- and
- operate the fan at a second speed to deliver the air flow to the space via the second opening in response to operating the fire suppression system to deliver the fire suppression agent into the air flow path, wherein the second speed is greater than the first speed.
7 more elements
Dependencies are inferred from the claim text.