GB 50189-2015 第4.3.1条
| **** | **Applicable conditions for ground-source heat pump systems**: When the hotel building site has conditions for utilizing shallow geothermal energy (ground-source, groundwater source, or surface water source), ground-source heat pump systems should be prioritized for heating and air conditioning. The system energy efficiency ratio (EER) shall not be lower than **5.0** (cooling condition), and the coefficient of performance for heating (COP) shall not be lower than **4.5** (heating condition). |