?1.Introduction of HYY Heating Supply System 
This system uses the   Single Well Supply/Return Water Technology as an energy collection   subsystem, and heat pump technology to provide heating for buildings.   This system is HYY patent technology which is able to use for various   geological condition and building indoor parameter requirements.   Customers can choose very kinds of water pumps, valves, soft water   units, electric automatic control equipments based on their demand. The   Single Well Supply/Return Water Technology can perfectly protect   groundwater resource.

 2.The main equipments of HYY Heating Supply System 
The   main equipments of HYY heating supply system include the Dual Stage   Heat Pump Unit (Energy Promotion Device), circulation water pump, water   filling and pressure device, energy storage device, energy collection   device. Standby equipment: operation data record, data transmission,   data treatment on line or by radio.

 3.Sketch map of HYY Heating Supply System