1. Introduction
The automatic dosing device for central air conditioning is composed of a dedicated control system, equipped with 1-5 dosing buckets, mixers, level gauges, metering pumps, detection probes, flow meters, solenoid valves, and other external signal output devices. It measures the conductivity (pH value, turbidity, OPR) of the cooling circulating water as the detection object, measures the water quality by measuring the conductivity value of the circulating water, sends dosing and discharge signals, and completes the dosing and discharge through external devices, thereby achieving automatic operation of the system. It achieves sterilization, algae removal, scale inhibition, and turbidity reduction while maintaining a certain concentration factor of the water body. The host and main components are all imported products with original packaging.

2. Working principle
The intelligent control device for central air conditioning water treatment tracks water quality changes in real-time through high-precision online water quality detection, and feeds back water quality sampling signals to the central controller. The central controller automatically adds scale and corrosion inhibitors, as well as bactericides and algaecides, to the water system based on water quality and the operation status of the central air conditioning system.
At the same time, the central controller can automatically discharge water based on the concentration ratio of the cooling water, ensuring that the water quality of the cooling water does not deteriorate, thereby maximizing the anti scaling, corrosion inhibition, sterilization, and algae killing effects of the chemicals.
The intelligent control device for central air conditioning water treatment solves the problem of manual chemical water treatment, even if it is operated by a dedicated person, it is impossible to track water quality online, add drugs and automatically discharge pollutants. It can only add drugs and manually discharge pollutants at regular intervals, which is not only very complicated to operate, but also prone to the phenomenon of excessive initial concentration of drugs or discharge volume, followed by insufficient concentration or discharge volume, seriously wasting drugs and water, and greatly reducing drug efficacy.

2、 Detailed content
1. External dimensions
Note: 1. There are two sizes on the way, the data before the diagonal line is for LZAM-I devices, and the data after the diagonal line is for LZAM-II and III devices. 2. All interfaces are threaded connections.