H1/VM3, 1st edition, amendment 1

H1 Energy Efficiency Verification Method H1/VM3 First Edition Amendment 1 provides a compliance pathway for meeting the energy efficiency performance requirements of Clause H1.3.6 of the New Zealand Building Code, specifically for HVAC systems in commercial buildings. The scope of the document covers energy efficiency provisions for air conditioning and mechanical ventilation systems, including controls, fans, ductwork, pumps, pipework, space heating, chillers, unitary air conditioning equipment, heat rejection equipment, energy monitoring, and maintenance access. It is suitable for use in commercial buildings where HVAC systems are a significant component of energy use. The amendment introduces references to the Building Product Specifications for pump motor efficiency and includes minor amendments to improve clarity, correct formatting, and update cross-references and terminology.