ELECTRONIC EXPANSION VALVE CONTROL METHOD OF A MULTI-AIR CONDITIONER SYSTEM FOR MINIMIZING THE REDUCTION OF COOLING PERFORMANCE BY DETECTING AND CONTROLLING LOW TEMPERATURE

摘要

Purpose: an electronic expansion valve adjusting method of an air handling system is configured without the whole cycle for influencing air handling system, by according to the temperature of one internal pipeline of temperature detection detected and an opening value of valve. Construction: an electronic expansion valve adjusting method of an air handling system includes step, is used to detect the temperature of bag indoor set one by one; An opening value of an electronic expansion valve is adjusted according to the temperature of the pipe in terms of stopping indoor set detecting; Stop indoor set according to adjusted opening value. In second step, if the temperature of pipe is lower than 6 deg.The pulse of C, electronic expansion valve are adjusted to manufacture 1. as the opening value for the expansion valve of a general stop control (S4)The opening value of 5 expansion valves. If the temperature of pipe is lower than 4 deg.C, the pulse of expansion valve adjust the opening value to manufacture 2 times expansion valves as the opening value for the expansion valve of general stop control (S2, S5).