DEVELOPMENT OF AN AUTOMATED CONTROL SYSTEM FOR PLENUM EXHAUST VENTILATION
The main task of the ventilation system is to ensure the most comfortable air space in the room. The widespread use of supply and exhaust ventilation systems in industrial and residential buildings is due to the development of new industries that need to maintain certain and constant parameters of the air condition; increasing requirements for working conditions and increased productivity; an increase in closed spaces for a long stay of large numbers of people, etc. Manual control of ventilation systems is not rational, it depends on the season, climatic conditions, etc. The object of automation is the supply and exhaust ventilation system. The technical means of the automation system are selected that meet the operating conditions of the automation object. The problems of the development of algorithmic and software for the automation system have been solved. A block diagram of the algorithm for generating signals in the system of automatic protection of a water heater from freezing and failure of the supply air duct fan when the corresponding air filter becomes dirty by stopping the electric motor of the supply air duct fan has been developed. The software implementation of the algorithm in the CoDeSys environment has been completed. The main costs for the creation and operation of an automated control system for supply and exhaust ventilation, the economic effect and the payback period have been calculated. The introduction of an automated control system is economically justified and expedient.