T/GDC 77-2020 Air source heat pump installation and acceptance specifications for waterless floor heating system
T/GDC 77-2020 Air source heat pump installation and acceptance specifications for waterless floor heating system
Basic Information
Scope
Scope: This specification stipulates the requirements for the installation, commissioning, construction, and acceptance of waterless underfloor heating projects using air-source heat pumps. This specification is applicable to new construction projects and system modification projects that use air-source waterless underfloor heating heat pump units; Main technical contents: General requirements, installation of insulation layers, installation of waterless underfloor heating pipelines and components, construction of filling layers, construction of surface layers, installation of indoor units, installation of waterless underfloor heating main units, charging and recovery of refrigerants, installation of electrical systems, commissioning and trial operation, and quality acceptance.