T/CECA-G0022-2019 Testing and calculation method for energy efficiency of household and similar water heaters
1 Scope
This standard specifies the test conditions, testing methods and calculation methods for energy efficiency of household and similar water heaters (hereinafter referred to as "water heaters").
This standard is applicable to household and similar heat pump water heaters, electrical storage water heaters, instantaneous water heaters, household gas instantaneous water heaters and gas storage water heaters.
This standard is not applicable to solar water heaters.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB 6932 Domestic gas instantaneous water heater
GB 18111 Gas storage water heater
GB/T 20289 Electrical storage water heaters
GB/T 23137 Heat pump water heater for household and similar application
GB/T 26185 Instantaneous water heater
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB 6932, GB 18111, GB/T 20289, GB/T 23137 and GB/T 26185 as well as the following apply.
3.1
useful energy content
internal energy of hot water generated when the useful water temperature and useful water flow are not lower than the useful water temperature and useful water flow
3.2
water use models
combination of a given range of useful water flow, useful water temperatures, and useful energy content that simulates a user's water use habits
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions
5 Test methods
6 Energy efficiency calculation method
