Energy-saving Control System of Water Source Heat Pump Based on PLC and Inverter

Water source heat pump is a efficient energy-saving air conditioning which used constant temperature underground water sources instead of the cooling tower.In actuallyt,he energy issues of the equipments such as refrigeration compressorsc,old water pumps and cooling water pumps should be fully considered.This article focuses on the frequency conservation energy saving principle of the cold water and cooling water systemst,he control programme of closed-loop energy-saving,and the design of control system in WSHP were expatiated in this paper.