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ASHRAE Guideline 36-2024 -- High-Performance Sequences of Operation for HVAC Systems (Includes Supporting Files)

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ASHRAE Guideline 36 establishes standardized advanced sequences of operation for common HVAC systems that help to reduce engineering, programming, and commissioning time; reduce energy consumption; and improve indoor air quality.Rather than develop sequences themselves, design engineers can adapt existing standard sequences that have been proven to perform. Energy consumption is reduced by making systems less dependent on proper implementation and commissioning of control sequences, and by ensuring that proven, cost-effective strategies, including those required by ASHRAE standards and building codes, are fully implemented. IAQ is improved by ensuring control sequences are in compliance with IAQ standards and codes such as ASHRAE Standard 62.1. Diagnostic software detects and diagnoses system faults and makes operators aware of them before they cause performance problems, further reducing energy consumption and reducing system down time.The 2024 edition of ASHRAE Guideline 36 includes 23 addenda to the 2021 edition. Key updates include:Addition of three new modular zone-humidity-limiting/dehumidification strategies for multiple-zone VAV air-handling units (AHU), where the AHU supply air temperature set point is reset to limit zone humidity. The designer may elect to incorporate one, two, or all of the strategies.Addition of an outdoor air pollution mode used to manually or automatically disable airside economizers when outdoor air contaminants exceed user-defined thresholdsEnhanced sequences to existing sections that, for example, provide flexibility to establish different demand limit adjustments for different zone types, define zone groupBug fixes to existing sectionsGuideline 36 is intended for HVAC designers, control contractors, commissioning agents, and building owners, operators, and maintenance technicians.

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