The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE, Atlanta) is seeking comments on several other standards and guidelines through June 6, as well.

Public comment is being solicited on three refrigerant-related standards. Methods of Testing Forced Convection and National Convection Air Coolers for Refrigeration, Standard 25-1990R establishes uniform methods of testing for obtaining performance data, defines terms used in testing, specifies data to be recorded and formulas to be used in calculations and sets limits and tolerances in testing.

Safety Code for Mechanical Refrigeration, Standard 15-1994 includes safety classification and approval procedures of refrigerants and refrigerant blends not included in ANSI/ASHRAE Standard 34-1997, Number Designation and Safety Classification of Refrigerants. Addendum r to ANSI/ASHRAE Standard 34-1997, Number Designation and Safety Classification of Refrigerants, adds a designation of R-417A to the blend of R-125/134a/600, and a safety classification of A1/A1.

The public is invited to review ASHRAE Standard 111-1988R, Practices for Measurement, Testing, Adjusting, and Balancing Heating, Ventilation, and Air-Conditioning Systems. The standard is being revised to incorporate research on coil traversing, grease hood testing, field procedures for air and water balance, new instrumentation, and control testing.

Proposed guideline 14P, Measurement of Energy and Demand Savings was developed to meet the need for a standardized set of energy and demand savings calculation procedures. Comments are also being sought on the proposed ASHRAE Standard 140P, Standard Method of Test for the Evaluation of Building Energy Analysis Computer Programs. This proposed standard specifies test procedures for evaluating the technical capabilities and ranges of applicability of computer programs that calculate the thermal performance of buildings and their hvac systems.

ASHRAE Standard 1180.1-1993R, Method of Testing for Rating Commercial Gas, Electric, and Oil Service Water Heating Equipment, provides test procedures for rating directly heated commercial service water heating equipment. This standard provides procedures for determining the efficiency and hot water delivery capability of commercial water heaters.

ASHRAE Standard 133P, Method of Testing Direct Evaporative Air Coolers establishes a uniform method of laboratory testing for rating packaged and component direct-evaporative air coolers.

Drafts of ASHRAE’s proposed standards are available only during their public review periods. To obtain electronic draft versions of any of the standards listed above, contact ASHRAE Customer Service at 404-636-8400 or visit the website at