Modular Air Conditioning Unit: Packaged AHU for Cleanrooms and Industrial Air Systems

The Modular air conditioner from Chengyun is a packaged air handling unit assembled from modular air-processing sections. The product page describes it as an air-handling device for air-conditioning systems with a resistance above 100 Pa, with sections for air mixing, airflow distribution, filtration, cooling, primary and secondary heating, dehumidification, humidification, supply fan, return fan, water spray, noise reduction and heat recovery. The unit is listed under the Air conditioning unit type category and is presented for cleanrooms and industrial air systems.

What the Unit Is

A modular air conditioner is built from a set of functional sections rather than a single sealed box. The buyer selects the sections for the process: a filter section for the air quality, a cooling coil for the sensible and latent load, a heating section for the winter case, a humidifier or a dehumidifier for the humidity target, and a fan section for the pressure. The page lists 12 section types and 30 airflow sizes, so the unit can be configured for a small cleanroom or a large plant. The buyer should start from the room load and the air change rate, not from the airflow alone.

The page does not give a cooling capacity, a heating capacity or a fan static pressure in the product text. Those values depend on the coil, the water or refrigerant temperature, the filter grade and the duct resistance, so they should be calculated for the project. The buyer should send the room area, the height, the heat load, the fresh air ratio, the filter class and the external static pressure.

Functional Sections and Airflow

The page lists the sections in a sequence from air mixing to heat recovery. The air mixing section combines the return air and the fresh air, the filter section removes the particles, the coil section cools or heats, and the fan section moves the air. The heat recovery section can reduce the fresh-air load, but the buyer should check the recovery type and the frost control for the local climate.

The page states that the units are classified by structure as horizontal, vertical and ceiling-mounted. The choice depends on the plant room, the ceiling height and the duct route. A horizontal unit needs a long plant room, a vertical unit needs a tall space, and a ceiling unit needs a service access from below. The buyer should check the maintenance space for the filters, the coils and the fan, because a unit that is installed tight to a wall can be hard to service. The page does not give the unit dimensions for each model, so the layout drawing should be requested.

Cleanroom Applications and Configuration

The page lists applications that include industrial electronics plants, precision machinery manufacturing, textile workshops, automotive painting booths, GMP pharmaceutical plants, cosmetics factories, food processing plants, purified water production, hospital operating rooms and ICUs. The buyer should state the cleanroom class and the process, and should ask for the filter train, the drain pan, the casing seal and the access doors that suit the hygiene requirement.

The page also classifies the units by application as general-purpose, fresh-air, purification and specialized types such as rooftop, subway and computer room units. A fresh-air unit treats 100 percent outdoor air, while a general-purpose unit mixes return and fresh air. The buyer should confirm the fresh-air ratio and the exhaust arrangement, because a unit that is selected as a general-purpose unit may not have the coil or the drain for a 100 percent fresh-air duty.

Company and Ordering

Dezhou Chengyun Air Conditioning Equipment Co., Ltd. is listed at 17 km along Provincial Highway 324, Wucheng County, Dezhou City, Shandong Province. The contact details on the page are a phone at +8613210990300, a WhatsApp number at 8618105445078 and an email address at 15110710633@163.com. The company presents a product range that includes air conditioning units, host units, fans, air dampers, coils, air curtains, ventilation and ductwork, and heat exchangers.

A buyer who needs a quotation should send the room load, the airflow, the fresh-air ratio, the filter class, the cooling and heating source, the humidity target, the static pressure, the layout and the destination. It is also useful to ask for the section drawing, the coil selection, the fan curve, the casing material and the control of the unit.

If you need a Modular air conditioner for a cleanroom or an industrial air system, send us the room load, the airflow, the filter class and the layout. We will confirm the section configuration, the coil and the fan, and we will point out the pressure and humidity points that should be checked before the order is placed.