CONTROL METHOD AND SYSTEM FOR SMOG-REMOVING FRESH-AIR AIR CONDITIONING SYSTEM

摘要

A control method and system for a smog-removing fresh-air air conditioning system. The method comprises: S1: powering up and initializing a main unit; S2: detecting outdoor temperature, t; S3: comparing the outdoor temperature, t, with a preset swapping temperature, t1, swapping a fresh air heat exchanger (3) and a dust filter (4) between front/rear positions, keep repeating step S2 and step S3 while proceeding to step S4; S4: starting an air conditioner; S5: transmitting power to an air supply fan (8) and an air exhaust fan (9). An alternate method is such that step S5 in the previous method is brought forward as step S2 while the other steps are pushed back. The system comprises a main unit controller (1), an outdoor temperature sensor (2), and the fresh air heat exchanger (3). A fresh air duct (6) is equipped with a swapping pipeline capable of swapping the order in which fresh air flows through the fresh air heat exchanger (3) and the dust filter (4). The outdoor temperature sensor (2) is arranged outdoors. The dust filter (4), the air supply fan (8), the air exhaust fan (9) are all electrically connected to the main unit controller (1) while the main unit controller (1) controls the swapping of the order in which fresh air flows through the fresh air heat exchanger (3) and the dust filter (4).