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ASHRAE

ANSI/ASHRAE Standard 40-2025

Standard 40-2025 -- Methods of Testing for Rating Heat-Operated Unitary Air-Conditioning and Heat-Pump Equipment

Standard Details

Full Description

ASHRAE Standard 40 provides test methods for determining the heating and cooling output capacities and energy inputs of unitary air-conditioning and heat-pump equipment that is heat-operated.

The 2025 edition substantially updates the standard and meets ASHRAE’s mandatory language requirement.

General Information

Status : ACTIVE
Standard Type: Main
Document No: ANSI/ASHRAE Standard 40-2025
Document Year: 2025
Pages: 54

Life Cycle

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ANSI/ASHRAE Standard 40-2025
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