Compressors

Resources

Staff Contact: Justin Prosser
Related Standards

Related Standard 510
Standard 510 Scope
This standard applies to Positive Displacement Ammonia Compressors (Ammonia Compressors) and Compressor Units (Ammonia Compressor Units) for use in commercial and industrial refrigeration applications.

Related Standard 530
Standard 530 Scope
This standard applies to External-drive, Hermetic and Semi-Hermetic Refrigerant Compressors. In the case of External-drive Refrigerant Compressors, the driving mechanism shall be excluded from the sound and vibration measurements. However, for Semi-Hermetic Refrigerant Compressors where the driving mechanism is an integral part of the compressor assembly as defined in Section 3, it shall be included in the measurements.
Related Standard 540 (E)
Standard 540 Scope
This standard applies to positive displacement refrigerant Compressors operating in subcritical applications at a fixed displacement. This standard also applies to the presentation of performance data for Compressors for air-cooled, evaporative-cooled or water-cooled air-conditioning, heat pump and refrigeration applications.
Related Standard 540 (F)
Domaine d’Application 540
La présente norme s’applique aux compresseurs frigorifiques volumétriques qui fonctionnent dans des applications subcritiques à une cylindrée constante. Elle s’applique aussi à la présentation des données de performance des compresseurs destinés aux climatiseurs de refroidissement par air, évaporation ou eau, aux thermopompes et aux systèmes de réfrigération.
Related Standard 570
Standard 570 Scope
This standard applies to electric motor driven, single and variable capacity, single and two stage Positive Displacement Refrigerant Compressors and Compressor Units operating with carbon dioxide in both subcritical and transcritical applications for refrigeration. This standard also applies to the presentation of performance data for Positive Displacement Compressor and Compressor Units operating with carbon dioxide.
Related Standard 571
Standard 571 Scope
This standard applies to electric motor driven, single and variable capacity, single and two stage Positive Displacement Refrigerant Compressors and Compressor Units operating with carbon dioxide in both subcritical and transcritical applications for refrigeration. This standard also applies to the presentation of performance data for Positive Displacement Compressor and Compressor Units operating with carbon dioxide.

Current Compressor Section Projects and Future Goals




Section Scope
Compressors and compressor units designed for use in HVACR equipment and building systems and not included in another product section scope, with the specific exclusion of:

Compressors and compressor units intended for use in:
  1. Household refrigerators
  2. Farm and home freezers
  3. Automotive air conditioners
  4. Room air conditioners
  5. Household Dehumidifiers



Current Compressor Section Projects and Future Goals

The following projects are currently underway within the AHRI Compressors Product Section. The section invites input from all manufacturers, regardless of AHRI membership status. Contact Justin Prosser to participate in any of these projects.


Develop a Unified Position on Uncertainty
“Uncertainty” is a key component of compressor performance ratings, and the section is creating universal definitions for uncertainty that will have global applications. Currently, the section is working with ASERCOM to develop a white paper that HVAC system manufacturers can use in communication with customers and regulators. The white paper will establish a comprehensive list of the sources of uncertainty and provide an overview on managing uncertainty.

Why you should be involved?
The AHRI Compressors section is working toward a unified industry position on uncertainty that will impact all manufacturers. The section is focusing on communicating the physical reality of performance rating uncertainty and the implications on compressor performance ratings. All manufacturers are invited to provide input on how they define and manage uncertainty.


Update and Develop Compressor Standards
The section has two main compressor standard goals. AHRI Standard 545P aims to rate and compare compressors not just at the full-load points, but also at part-load points, with the broader goal of eventually comparing compressors across entire operating maps. The section also is focused on a new centrifugal standard. Centrifugal compressors are becoming increasingly available in the market on a multi-national level and they require an industry standard to allow for accurate comparisons.

In addition, the section is working on updating AHRI Standards 510, 570, 571, and 530, as well as participating in ASHRAE Standards 23.1, 23.2, and 205, all of which relate to compressors.

Why you should be involved?
AHRI rating standards are referenced all over the world by customers, suppliers, and regulators. The completed standards will impact how manufacturers rate products, whether or not they are members of AHRI. The section is particularly interested in working on the centrifugal standard with global manufacturers to facilitate international collaboration.


Rate Compressors Using Refrigerants with Glide (Zeotropic Refrigerant Mixtures)
When rating systems using refrigerants with glide, compressor manufacturers look at dewpoints to analyze the performance of the system, while HVAC system manufacturers refer to the midpoints. The section will align the industry on this growing issue, instead of requiring manufacturers to translate data from dewpoints or midpoints.

Why you should be involved?
All manufacturers will benefit from a harmonized approach to analyzing refrigerants with glide. The section wants to work with the industry to create a solution and needs input from all manufacturers. Work includes creating a guideline, establishing a better process to generate ratings, and educating the industry on the issue.

Contact Justin Prosser to participate in any of these projects.