T/CNHA 1051-2022 "Symbiotic Excellent Products" Evaluation Requirements for Household Gas Rapid Water Heaters
T/CNHA 1051-2022
Basic Information
Scope
Scope: The document specifies the terms and definitions, basic requirements, evaluation index system, evaluation methods, and grade classification for the evaluation of household gas instantaneous water heaters "Symbiosis Youpin". This document applies to household gas instantaneous water heaters with a heat load not exceeding 70 kW (hereinafter referred to as "water heaters"). This standard does not apply to gas volume-type water heaters. Main technical content: The evaluation indicators for household gas instantaneous water heaters "Symbiosis Youpin" mainly include: mandatory performance indicators and optional performance indicators. Mandatory performance indicators include: basic requirements, minimum heat load, heating time, hot water output, carbon monoxide content in flue gas (in a windless state), and combustion noise. Optional performance indicators include: thermal efficiency, hot water delivery time, hot water temperature fluctuation, combustion noise, carbon monoxide content in flue gas, and nitrogen oxide content in flue gas.