Multi-zone integral face bypass coil system

Inactive Publication Date: 2005-09-01
MESTEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] It is another object of the present invention to provide a multi-zone, VIFB apparatus that provides protection against damaging environmental conditions.
[0011] It is another object of the present invention to provide a multi-zone, VIFB apparatus that may be fashioned from smaller gauge materials, and smaller diameter piping.
[0012] It is another object of the present invention to provide a multi-zone, VIFB apparatus that is more energy efficient.
[0013] It is another object of the present invention to provide a multi-zone, VIFB apparatus that provides more precise temperature conditioning than known single-manifold systems.

Problems solved by technology

If the swing in the desired volume of air being processed by known integral face bypass coil systems is too great, it is possible that the pressure within the coils can drop to levels that may lead to the freezing of condensate in the coils, and thus related structural damage or failure.
Similarly, known integral face bypass coil systems must be manufactured to handle wide swings in the volume of treated air, therefore the components in these systems are large in size, and may in fact be ‘over-built’ when the systems are utilized in small-volume applications.
Moreover, the damper-drive assemblies of known integral face bypass coil systems are complex and that take up a fair amount of room, as well as being less precise than possible due to the large number of linkages utilized in such assemblies.
That is, owing to the use of variable speed blowers and variable air volume control systems, many known integral face bypass coil systems utilize modulating valves that maintain desired pressure, but often fall short of desired steam volume.

Method used

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  • Multi-zone integral face bypass coil system
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Embodiment Construction

[0027]FIG. 1 illustrates a prior art IFB apparatus 100. In particular, FIG. 1 illustrates a known vertical integral face bypass (VIFB) apparatus 100 having a single inlet manifold header 102 and a single outlet manifold header 104 for supplying heated water, steam or the like to a series of interconnected, vertically oriented heating coils 106. A series of clam-shell dampers 108 are utilized to selectively isolate the heating coils 106, to a greater or lesser extent, from the flow of outside, or inlet, air. A complex set of interconnected linkages 110 are mounted to the VIFB apparatus 100 to control the selective positioning of the clam-shell dampers 108.

[0028]FIGS. 2-4 show a simplified, schematic plan-view representation of the heating coils 106 as arranged in the VIFB apparatus 100. As shown in FIG. 2, the clam-shell dampers 108 are fully opened, thus causing a maximum of inlet air flow over and about the heating coils 106. When oriented in the manner shown in FIG. 2, the clam-s...

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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.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Application Ser. No. 60 / 548,120, filed on Feb. 26, 2004, and herein incorporated by reference in its entirety.FIELD OF THE INVENTION [0002] This invention relates in general to a multi-zone integral face bypass coil system, and deals more particularly with a multi-zone integral face bypass coil system that provides greater flexibility with two or more heating zones, and greater protection against damaging environmental condition, than known systems. BACKGROUND OF THE INVENTION [0003] Integral face bypass (IFB) coil systems are known in the art and typically employ a single input and output header for feeding a predetermined amount of hot water or steam through a series of heating coils. The coils are themselves disposed within selectively actuating damper devices, which open and close by a given degree in order to permit a varying amount of inlet air to pass directly over the coils...

Claims

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Application Information

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IPC IPC(8): F24F3/044F24F3/06F24F13/10F28F27/02
CPCF24F3/0442F28F27/02F24F11/04F24F11/74
InventorTOSI, CHARLES
OwnerMESTEK