Basic process of purifying air conditioning system
1. Each purification unit of the purification air conditioning system is equipped with a set of bidirectional regulating valves and a set of temperature and humidity probes. The bidirectional regulating valve is arranged on the return water main pipe of the unit, and the temperature and humidity probe is arranged on the return air main pipe of the operation room. The signal collected by the temperature and humidity probe is transmitted to DDC, which controls the opening of the two-way regulating valve through the set temperature.
2.DDC should give priority to humidity control. In summer, the fresh air surface cooler cools and dehumidifies first, and then the fresh air and return air are mixed and cooled and dehumidified for the second time on the air handling unit until the humidity reaches the standard set by DDC. At this time, DDC will work with the auxiliary electric heater to achieve the set temperature and humidity. Humidify the air with a wet film humidifier in winter to make the humidity meet the requirements.
3. The switching program of the auxiliary electric heater is controlled by DDC. When the air temperature in the air duct is lower than the set temperature, the electric heater will automatically turn on, otherwise it will turn off. The electric heater itself also has an overheat protection device. When its temperature exceeds 90 degrees, the electric heater will automatically turn off.
4. The fresh air purification unit and the air purification unit realize chain control, that is, as long as one air purification unit in the system is turned on, the corresponding fresh air purification unit must be turned on first, and only when all air purification units using the fresh air system are turned off can the fresh air purification unit be turned off.
Precautions for installation of purified air conditioner
1. The assembly of each functional section of the clean air conditioning unit shall conform to the order and requirements specified in the design. The joint between the return air outlet, various terminal devices and various pipes and the clean indoor surface should be sealed reliably and tightly; Clean the air conditioning unit, plenum, air duct and overlapping air return openings, and do not accumulate dust.
2. When the side length of rectangular air duct is less than or equal to 900mm, the bottom plate should not be spliced; Rectangular duct greater than 900mm, transverse splicing shall not be adopted; Fasteners should not be used for air duct systems with cleanliness level of N 1 ~ N5. The inner surface of the air duct should be flat and smooth, and the steel skeleton and reinforcement shall not be set in the air duct.
3. The installation of the air duct of the purification air conditioning system should be carried out when the installation part of the ground has been completed and there are dust-proof measures indoors. After cleaning and sealing, the air duct and accessories should be connected and installed immediately after opening the port and sealing the film; When the installation needs to be suspended, the port should be resealed.
After reading the above introduction, you may have some basic understanding of purifying air conditioning. If you are engaged in warehouse or warehousing business, you should know more about purifying air conditioning. The above simple basic process of purifying air conditioning system and matters needing attention in purifying air conditioning installation may point out a direction for you to learn and understand.