T/HNNTXH 02-2022 Central Air Conditioning Maintenance and Repair Standards
T/HNNTXH 02-2022
Basic Information
Scope
Scope: This document specifies the terms and definitions, basic requirements, management requirements, technical service requirements, quality requirements, maintenance service reports, and follow-up services for central air-conditioning maintenance and repair work. This document is applicable to the management of central air-conditioning maintenance and repair work. Main technical content: This document specifies the terms and definitions, basic requirements, management requirements, technical service requirements, quality requirements, maintenance service reports, and follow-up services for central air-conditioning maintenance and repair work. This document is applicable to the management of central air-conditioning maintenance and repair work.