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4428 — Dedicated Outdoor Air-Dual Wheel System Control Requirements

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Conference Proceeding by ASHRAE, 2001

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Description

The central thrust of this paper is to develop a clear understanding of the performance and control requirements for a dedicated outdoor air-dual wheel system. The dedicated outdoor air-dual wheel system discussed here is specifically intended to decouple all of the latent cooling from the sensible cooling done with a parallel system. The control requirements include identification of each local loop, instrumentation, control devices, sequence of operation, and a sample graphic programming language diagram. The dedicated outdoor air-dual wheel system consists of a preheat coil, an enthalpy wheel, a deep chilled water dehumidification cooling coil, and a sensible heat recovery exchanger. The imminent design para-digm shift over to the use of dedicated outdoor air systems is being restrained, in part, because of a general uncertainty about how best to control the equipment.

Units: Dual

Citation: ASHRAE Transactions, vol. 107, pt. 1

Product Details

Published:
2001
Number of Pages:
9
File Size:
1 file , 490 KB
Product Code(s):
D-7124