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ASHRAE 90.1 USERS MANUAL

STANDARD 90.1 USER’S MANUAL Based on ANSI/ASHRAE/IES Standard 90.1-2019, Energy Standard for Buildings Except Low-Rise Residential Buildings

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Organization: ASHRAE
Publication Date: 1 January 2020
Status: active
Page Count: 462
scope:

Scope of the Standard

The standard provides minimum energy-efficiency requirements for the design and construction of new buildings and new construction in existing buildings. In particular, it applies to new buildings and their systems, building additions and their systems, and new systems and equipment in existing buildings. The standard has been expanded to include new equipment or building systems specifically identified in the standard that are part of commercial, industrial, and manufacturing processes. This empowers the Standard 90.1 committee to address specific commercial, manufacturing, and industrial processes. Requirements have been added to address commercial coolers and freezers, escalators, moving walkways, and elevator cab lighting. Future addenda will likely address other manufacturing and/or industrial processes.

The scope of the requirements covers the design of the building envelope, lighting systems, HVAC&R systems, and other energy-using equipment.

The standard applies to the building envelope when it encloses heated and/or cooled space where the heating system has an output capacity greater than or equal to 3.4 Btu/h∙ft² (10 W/m²) of floor area or where the cooling system has a sensible output capacity greater than or equal to 5 Btu/h∙ft² (15 W/m²) of floor area. The standard also applies to systems and equipment used in conjunction with buildings, including systems for heating, ventilating and air conditioning, service water heating, electric power distribution, electric motors and lighting.

The standard does not apply to

a. single-family houses,

b. multifamily structures of three stories or fewer above grade,

c. manufactured houses (modular or mobile homes) or

d. buildings that do not use either electricity or fossil fuel.

Certain other buildings or building components may be exempt by specific notations in the technical sections of the standard.

The standard shall not be used to circumvent any safety, health, or environmental requirements. If there is a conflict between the requirements of this standard and safety, health, or environmental codes, interpretation should be requested from the local AHJ.

Document History

ASHRAE 90.1 USERS MANUAL
January 1, 2020
STANDARD 90.1 USER’S MANUAL Based on ANSI/ASHRAE/IES Standard 90.1-2019, Energy Standard for Buildings Except Low-Rise Residential Buildings
Scope of the Standard The standard provides minimum energy-efficiency requirements for the design and construction of new buildings and new construction in existing buildings. In particular, it...
January 1, 2016
User's Manual I-P and SI
The scope was modified to allow for the inclusion of new equipment or building systems that are part of industrial or manufacturing processes. These changes are marked with in the margins of this...
January 1, 2013
User's Manual I-P and SI
Changes to the Scope Throughout the User's Manual, significant changes incorporated into the 2013 edition of the Standard are indicated by a n the sections. Section 2 (Scope) was modified to allow...
January 1, 2010
ENERGY STANDARD FOR BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS
Scope of the Standard The Standard provides minimum energy-efficiency requirements for the design and construction of new buildings and new construction in existing buildings. In particular, it...
December 10, 2009
ENERGY STANDARD FOR BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS
This standard provides: a. minimum energy-efficient requirements for the design and construction of: 1. new buildings and their systems 2. new portions of buildings and their systems 3. new...
November 14, 2008
ENERGY STANDARD FOR BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS
This standard provides: a. minimum energy-efficient requirements for the design and construction of: 1. new buildings and their systems 2. new portions of buildings and their systems 3. new...
August 20, 2008
ENERGY STANDARD FOR BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS
This standard provides: a. minimum energy-efficient requirements for the design and construction of: 1. new buildings and their systems 2. new portions of buildings and their systems 3. new...
ENERGY STANDARD FOR BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS
This standard provides: (a) minimum energy-efficient requirements for the design and construction of: 1. new buildings and their systems, 2. new portions of buildings and their systems, and 3. new...
January 1, 2007
ENERGY STANDARD FOR BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS
This guideline covers the application of mixed air control dampers in air-handling units and systems that incorporate air-side economizer systems for cooling. This guideline addresses the selection...
January 1, 2004
ENERGY STANDARD FOR BUILDINGS EXCEPT LOW-RISE RESIDENTIAL BUILDINGS
This standard provides: (a) minimum energy-efficient requirements for the design and construction of: 1. new buildings and their systems, 2. new portions of buildings and their systems, and 3. new...

References

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