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US 8,206,147 B2Granted
Multistage gas furnace having split manifold
AssigneeCarrier Corporation
InventorsBrian D. Videto, Ruddy C. Bussjager
Life of this patent
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Abstract
A heating apparatus for a heat exchanger system includes a manifold having a plurality of burners, a shutoff valve, a first controller and a second controller. The shutoff valve divides the manifold into a first manifold portion and a second manifold portion. The first controller selectively controls the communication of a fluid within the manifold. The second controller selectively actuates the shutoff valve between a first position and a second position to control a firing rate of the plurality of burners.
Claims8
A heat exchanger system, comprising:
- a gas valve;
- a manifold in fluid communication with said gas valve;
- a shutoff valve positioned downstream from said gas valve and dividing said manifold into a first manifold portion and a second manifold portion;
- a plurality of burners positioned adjacent to said manifold, wherein a first amount of said plurality of burners are positioned upstream from said shutoff valve within said first manifold portion and a second amount of said plurality of burners are positioned downstream of said shutoff valve within said second manifold portion;
- a first controller that selectively communicates with said first amount of said plurality of burners;
- and
- a second controller that selectively communicates with said second amount of said plurality of burners.
4 more elements
Dependencies are inferred from the claim text.