Artificial intelligence (AI) policy: ASHRAE prohibits the entry of content from any ASHRAE publication or related ASHRAE intellectual property (IP) into any AI tool, including but not limited to ChatGPT. Additionally, creating derivative works of ASHRAE IP using AI is also prohibited without express written permission from ASHRAE.

logoShaping Tomorrow's Built Environment Today

Section 8.0 — Air-Conditioning and Refrigeration System Components

Share This

  • TC 08.01 Positive Displacement Compressors

    Technical Committee 8.1 is concerned with the design, performance, features, and operating characteristics of all types of positive displacement compressors for use with refrigerants.

    TC Website:

  • TC 08.02 Centrifugal Machines

    Technical Committee 8.2 is concerned with packaged equipment which involves centrifugal compressors, including those heat exchangers, drivers, controls and accessories which are specific to packaged centrifugal equipment. TC 8.2 is also concerned with the design and performance of centrifugal compressors, steam turbines and gas turbines for use in refrigerating applications.

    TC Website:

  • TC 08.03 Absorption And Heat Operated Machines

    Technical Committee 8.3 is concerned with the design, performance and application of equipment energized by a heat source and using a thermodynamic cycle to provide an air-conditioning, refrigerating or heating function; with the properties of absorbent solutions or special working fluids used in these cycles; and with components of the cycle requiring specific design characteristics.

    TC Website:

  • TC 08.04 Air-To-Refrigerant Heat Transfer Equipment

    Technical Committee 8.4 is concerned with design, performance, and application of heat transfer equipment in which a refrigerant, including water or brine, is used to remove heat from air. The processes of concern to the committee include both sensible heat transfer and combined sensible and latent heat transfer.

    TC Website:

  • TC 08.05 Liquid-To-Refrigerant Heat Exchangers

    Technical Committee 8.5 is concerned with devices for accomplishing heat transfer between refrigerants (including secondary refrigerants) and liquids such as water or liquid cooled condensers, or evaporators for cooling water or other liquids.

    TC Website:

  • TC 08.06 Cooling Towers And Evaporative Condensers

    Technical Committee TC 8.6 is concerned with open and closed circuit cooling towers, evaporative condensers, adiabatic condensers and fluid coolers, spray ponds, and other types of contact type liquid-to-air heat rejection equipment along with their application and impact on complete HVAC, Industrial, and Refrigeration systems, including the associated energy and water usage as well as water treatment requirements.

    TC Website:

  • TC 08.07 Variable Refrigerant Flow

    TC8.7 is concerned with the design, performance, and application of variable refrigerant flow systems into commercial HVAC systems.

    TC Website:

  • TC 08.08 Refrigerant System Controls And Accessories

    Technical Committee 8.8 is concerned with refrigerant flow controls and other refrigerant control devices, including relief devices, check valves, condenser water regulators and oil separators.

    TC Website:

  • TC 08.09 Residential Refrigerators And Food Freezers

    Technical Committee 8.9 is concerned with refrigerators and food freezers intended for use in the home. This concern includes special features; cabinet construction; refrigeration systems and their components; good design practice for performance, safety, reliability and serviceability; and performance requirements and procedures for test and evaluation.

    TC Website:

  • TC 08.10 Mechanical and Desiccant Dehumidification Equipment, Heat Pipes and Components

    Technical Committee 8.10 is principally concerned with mechanical and solid/liquid desiccant dehumidification equipment and heat pipes and their design performance, applications engineering, related load calculations, commissioning, operation, and maintenance. The committee is also concerned with the integration of desiccant equipment and components into other systems and with fundamental abstracts of heat and mass-transfer as they relate to desiccant materials and compounds.

    TC Website:

  • TC 08.11 Unitary And Room Air Conditioners And Heat Pumps

    Technical Committee 8.11 is concerned with products for use in comfort cooling and/or heating systems. These factory-engineered vapor compression systems include: (1) unitary equipment which generally require the field engineering of the product mounting and ducting, piping and electrical connections, (2) room air conditioners such as window mounted units and ductless split systems and (3) packaged terminal equipment. Specifically excluded are unitary combustion engine driven systems.

    TC Website:

  • TC Section 8.0 Home Pages

    The technical expertise of ASHRAE is concentrated in its Technical Committees (TCs), Task Groups (TGs), and Technical Resource Groups (TRGs). Keep in touch with your committee or group by accessing its home page!

    If you are interested in finding out how to list your TC, TG, or TRG's home page here, please contact Steve Hammerling, at

    ASHRAE Technical Committee 8.1
    Positive Displacement Compressors

    ASHRAE Technical Committee 8.2
    Centrifugal Machines

    ASHRAE Technical Committee 8.3
    Absorption and Heat Operated Machines

    ASHRAE Technical Committee 8.4
    Air-to-Refrigerant Heat Transfer Equipment

    ASHRAE Technical Committee 8.5
    Liquid-to-Refrigerant Heat Exchangers

    ASHRAE Technical Committee 8.6
    Cooling Towers and Evaporative Condensers

    ASHRAE Technical Committee 8.7
    Variable Refrigerant Flow

    ASHRAE Technical Committee 8.8
    Refrigerant System Controls and Accessories

    ASHRAE Technical Committee 8.9
    Residential Refrigerators and Food Freezers

    ASHRAE Technical Committee 8.10
    Mechanical and Desiccant Dehumidification Equipment, Heat Pipes and Components

    ASHRAE Technical Committee 8.11
    Unitary and Room Air Conditioners and Heat Pumps (orig. TC 7.6)

    ASHRAE Technical Committee 8.12
    Desiccant Dehumidification Equipment & Components