... for chilled water system: 1.remote control 2.time switch 3.prepaid function 4.competitive pr Working ProcessContects the FCU and ... for BTU Measurement System.2.Low cost, low construction cost;3.Electronic system, low effect from outside, long lifetime4.No ... controls temperature adjusted, controlled and locked, manages uniformly4. Timing switch ON/OFF; 5.Prepaid payment, otherwise stop heat or cooling ...