T/HNNTXH 01-2022
Qualification level of central air conditioning maintenance institutions (English Version)

Standard No.

T/HNNTXH 01-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

Group Standards of the People's Republic of China

Latest

T/HNNTXH 01-2022

Scope

This document stipulates the terms and definitions for the capability level assessment of central air-conditioning repair and maintenance organizations, capability level classification and level conditions, capability level application and assessment, etc. This document is applicable to the capability level management of central air-conditioning repair and maintenance organizations.

T/HNNTXH 01-2022 history

• 2022 T/HNNTXH 01-2022 Qualification level of central air conditioning maintenance institutions