GB/T 21087-2020 (English Version)

Scope: This standard specifies the classification and labeling, structure and material requirements, test methods, inspection rules, signs, packaging, transportation and storage of heat recovery fresh air units. This standard applies to new exhaust ventilation units that recover exhaust air energy in heating, ventilation, air conditioning, and purification systems, and perform cold, heat, humidity, and filter pretreatment on fresh air.

GB/T 21087-2020 Referenced Document

GB 21551.2 Antibacterial and cleaning function for household and similar electrical appliances.Particular requirements of material
GB 4706.1 Household and similar electrical appliances-Safety Part 1:General requirements
GB 50016 Architectural design code for fire protection
GB 8624 Classification for burning behavior of building materials and products
GB/T 1236 Industrial fan—Performance testing using standardized airways
GB/T 14295 Air filter
GB/T 14296 Air cooling and air heating coils
GB/T 16803 Equipment of heating, ventilating, air conditioning and air cleaning terminology
GB/T 2423.3 Environmental testing—Part 2：Testing method—Test Cab:Damp heat,steady state
GB/T 34012 Air cleaner for ventilation system
GB/T 3785.1 Electroacoustics—Sound level meters—Part 1: Specifications*， 2023-05-23 Update
GB/T 755 Rotating electrical machines—Rating and performance
GB/T 9068 Determination of sound power levels for noise emitted by heating ventilating and air conditioning equipment--Engineering method