Items Tagged with 'ANSI accreditation'

The American National Standards Institute (ANSI) has officially recognized ACR, the NADCA Standard for Assessment, Cleaning & Restoration of HVAC Systems, as a benchmark.

The standard, ACCA 4 QM – 2019, “Maintenance of Residential HVAC Systems,” provides a nationally recognized, manufacturer-endorsed set of minimum tasks that should be performed for HVACR equipment maintenance inspections.

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.