The Manual D procedures match duct system resistance (pressure drop) to blower performance (as defined by the HVAC system manufacturer’s blower performance tables). This delivers appropriate airflow to the rooms and spaces to be conditioned while ensuring that system airflow is compatible with the operating range of the HVAC equipment.
ANSI/AMCA Standard 500-L-23 establishes uniform methods of testing air leakage, air performance (pressure drop), water penetration, resistance to wind-driven rain and wind-driven-sand, and operational torque.
To address the move toward heat pumps, ACCA has updated Manual S accordingly. Along with setting clear requirements, the revised standard expanded its guidance for variable-capacity equipment.
The updated standard, ANSI/BPI-1100-T-2023, defines the minimum criteria for conducting a science-based, whole-building assessment of a residential building.
The 45-day public review period of the On Board Diagnostic (OBD) Standard started on Aug. 24 and will close on Oct. 8. The OBD Standard details the naming schema for designating fault and performance codes for HVACR equipment.
The Air Conditioning Contractors of America (ACCA) Educational Institute Standards Task Team announced that ACCA Standard 12 - Home Evaluation and Performance Improvement - is approved by the American National Standards Institute (ANSI).
NEBB announced today that the latest edition of its publication ANSI/NEBB Whole Building Technical Commissioning of New Construction Standard S110-2018 is an Approved American National Standard, now available for sale in both print and electronic versions.
The Outdoor NeoTherm is a direct-vent, sealed-combustion, condensing boiler or volume water heater designed specifically for outdoor installations. These systems meet or exceed all applicable American National Standards Institute (ANSI) testing demands for outdoor use and reach thermal efficiencies as high as 97 percent.