Multi-zone integral face bypass coil system

Abstract

An air handling system for selectively and incrementally heating a flow of inlet air entering the air handling system through an inlet opening includes a first heating coil assembly in fluid communication with a first inlet manifold header and a first outlet manifold header, and a second heating coil assembly in fluid communication with a second inlet manifold header and a second outlet manifold header. The first heating coil assembly is oriented forward of the second heating coil assembly such that the first heating coil assembly is disposed closer to the inlet opening than the second heating coil assembly.

1 . An air handling system for conditioning inlet air, comprising: 
 a first heating coil assembly being in fluid communication with a first inlet manifold header and a first outlet manifold header;    a second heating coil assembly being in fluid communication with a second inlet manifold header and a second outlet manifold header; and    a damper assembly for selectively regulating the exposure of said first heating coil assembly and said second heating coil assembly with said inlet air.    
     
     
         2 . The air handling system according to  claim 1 , wherein: 
 said first heating coil assembly and said second heating coil assembly are arranged within said damper assembly.    
     
     
         3 . The air handling system according to  claim 1 , wherein: 
 said first heating coil assembly is oriented forward of said second heating coil assembly.    
     
     
         4 . The air handling system according to  claim 1 , wherein: 
 said second heating coil assembly is active only when a volume of said inlet air exceeds a predetermined amount.    
     
     
         5 . The air handling system according to  claim 1 , wherein: 
 said first heating coil assembly is active over an entire operational range of said air handling system.    
     
     
         6 . The air handling system according to  claim 5 , wherein: 
 said second heating coil assembly is utilized only over a portion of said operational range of said air handling system.    
     
     
         7 . The air handling system according to  claim 1 , wherein: 
 said second heating coil assembly is active only when a temperature difference between said inlet air and an instructed conditioned air temperature exceeds a predetermined amount.    
     
     
         8 . The air handling system according to  claim 1 , further comprising: 
 a drive system directly coupled to said damper assembly.    
     
     
         9 . An air handling system for selectively and incrementally heating a flow of inlet air entering said air handling system through an inlet opening, comprising: 
 a first heating coil assembly being in fluid communication with a first inlet manifold header and a first outlet manifold header;    a second heating coil assembly being in fluid communication with a second inlet manifold header and a second outlet manifold header; and    wherein said first heating coil assembly is oriented forward of said second heating coil assembly such that said first heating coil assembly is disposed closer to said inlet opening than said second heating coil assembly.    
     
     
         10 . The air handling system according to  claim 9 , further comprising: 
 a damper assembly for selectively regulating the exposure of said first heating coil assembly and said second heating coil assembly with said flow of inlet air.    
     
     
         11 . The air handling system according to  claim 10 , wherein: 
 said first heating coil assembly and said second heating coil assembly are arranged within said damper assembly.    
     
     
         12 . The air handling system according to  claim 9 , wherein: 
 said second heating coil assembly is active only when a volume of said inlet air exceeds a predetermined amount.    
     
     
         13 . The air handling system according to  claim 9 , wherein: 
 said first heating coil assembly is active over an entire operational range of said air handling system.    
     
     
         14 . The air handling system according to  claim 13 , wherein: 
 said second heating coil assembly is utilized only over a portion of said operational range of said air handling system.    
     
     
         15 . The air handling system according to  claim 9 , wherein: 
 said second heating coil assembly is active only when a temperature difference between said inlet air and an instructed conditioned air temperature exceeds a predetermined amount.    
     
     
         16 . The air handling system according to  claim 9 , further comprising: 
 a drive system directly coupled to said damper assembly.    
     
     
         17 . A method of selectively and incrementally heating a flow of inlet air entering an air handling system through an inlet opening, said method comprising the steps of: 
 arranging a first heating coil assembly to be in fluid communication with a first inlet manifold header and a first outlet manifold header;    arranging a second heating coil assembly to be in fluid communication with a second inlet manifold header and a second outlet manifold header; and    orienting said first heating coil assembly forward of said second heating coil assembly such that said first heating coil assembly is arranged closer to said inlet opening than said second heating coil assembly.    
     
     
         18 . The method of selectively and incrementally heating a flow of inlet air entering an air handling system according to  claim 17 , further comprising the steps of: 
 providing a damper assembly for selectively regulating the exposure of said first heating coil assembly and said second heating coil assembly with said flow of inlet air.    
     
     
         19 . The method of selectively and incrementally heating a flow of inlet air entering an air handling system according to  claim 18 , wherein: 
 arranging said first heating coil assembly and said second heating coil assembly within said damper assembly.    
     
     
         20 . The method of selectively and incrementally heating a flow of inlet air entering an air handling system according to  claim 17 , wherein: 
 utilizing said first heating coil assembly over an entire operational range of said air handling system; and    engaging said second heating coil assembly only over a portion of said operational range of said air handling system.    
     
     
         21 . The method of selectively and incrementally heating a flow of inlet air entering an air handling system according to  claim 17 , wherein: 
 activating said second heating coil assembly only when one of a temperature difference between said flow of inlet air and an instructed conditioned air temperature exceeds a predetermined temperature rise, and when a volume of said inlet air exceeds a design parameter.