The SCHLEE series modular air handling units feature high-pressure polyurethane foam as the core insulation material. The newly designed, interlocking groove-and-ridge plastic profiles with a forced-sealing edge are integrated with the inner and outer steel plates of the unit through high-density polyurethane foam, forming a monolithic structure. As a result, when the panel sections are joined together, no sealing strips are required to ensure excellent airtightness, thereby guaranteeing both superior thermal insulation performance and structural strength of the unit. Moreover, the use of plastic profiles effectively prevents thermal bridges caused by the inherent thermal conductivity of the profiles themselves. After the panels are assembled, they form the external frame of the unit, while the profiled steel members used for connecting the units create an internal framework. This dual-frame structure further enhances the overall strength and rigidity of the unit. The SCHLEE modular air handling units can be configured with various functional modules according to customer requirements and are widely applicable to subway systems, exhibition centers, airports, office buildings, hotels, restaurants, theaters, shopping malls, sports arenas, government administrative offices, as well as industries such as electronics, textiles, pharmaceuticals, food processing, petrochemicals, and tobacco.
[Core Advantages]
Superior Quality: The SCHLEE modular air handling units feature a standardized modular design. The unit’s width and height increase proportionally according to the module dimensions, allowing them to be tailored to meet site-specific requirements for both width and height. The units employ a direct-panel assembly structure, with panel frames featuring a patented design. The interlocking grooves and ridges of the plastic profiles create a mechanically sealed edge that, combined with high-density polyurethane foam bonded to the inner and outer steel plates of the cabinet, forms a monolithic structure. As a result, when panels are joined together, no sealing strips are required, yet the unit still achieves excellent sealing performance and structural integrity. All models of these units have smooth, even interior surfaces that resist dust accumulation and minimize secondary contamination, making them ideal for use in purified environments.
High Efficiency and Energy Savings: The coil is manufactured using seamless, copper tubes specifically designed for refrigeration and air-conditioning systems, along with enhanced turbulence fins. The copper tubes undergo expansion to ensure minimal thermal contact resistance and maximize heat transfer efficiency. SCHLEE can provide professional automatic control solutions for air-conditioning systems tailored to user requirements, ensuring that each unit operates economically, efficiently, and reliably while meeting either comfort or process-related performance standards.
Unique craftsmanship: The unit’s exterior panels are made of high-quality color-coated steel sheets, which feature excellent corrosion resistance. A protective film is applied over the colored steel surface to prevent scratches during assembly and transportation. After the panels are assembled and formed, the right-angle joints are designed with rounded arcs, giving the unit a clean and smooth appearance. All panel components can be conveniently disassembled and reassembled on-site, and repeated assembly does not compromise the box’s sealing performance or structural strength. Depending on customer requirements, the unit can be shipped either as a complete machine or in separate parts.
[Working Principle]
A packaged air handling unit is a centralized air conditioning system whose core function is to perform comprehensive “processing” of air. It integrates multiple functional sections—such as filtration, cooling, heating, humidification, and fan units—in a specific sequence. During operation, outdoor fresh air and a portion of indoor return air are first mixed in the mixing section according to a predetermined ratio, striking a balance between energy efficiency and air quality. The mixed air then sequentially passes through each functional section: it is purified in the filtration section; cooled and dehumidified or heated via chilled-water or hot-water coils in the surface-cooling/heating section; and humidity is added in the humidification section (especially during winter or in dry regions). Finally, a powerful fan in the fan section provides the necessary airflow, ensuring that the air, having been processed to meet preset parameters, is efficiently and uniformly distributed throughout the building’s various zones via a network of ducts.
Keywords:
Modular air handling unit
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