Refrigerant and water for hot and cold exchange process

There is a cold and hot water exchange process, so the summer must be 40 minutes before the meal to open the outdoor host, 10 minutes before dinner to open the indoor end of the room for pre-cooling, so the summer chiller system real run time for 150 minutes per day ( 2.33 hours). During the winter operation, the heating boiler must be opened 1.5 hours before the meal so that the water temperature in the boiler reaches the requirements. Open the circulating water pump 30 minutes before the meal so that the air conditioning water in the system can be preheated and the indoor end is opened 10 minutes before the meal Room warmer. Therefore, the operation time of the winter heating boiler is 180 minutes (3 hours) per day, and the air conditioning cycle system runs 150 minutes (2.33 hours) per day.