Product Overview
Engineered for high-demand commercial and industrial applications, this industrial-grade positive-pressure air exchange system revolutionizes indoor climate management. Combining bi-directional airflow technology with robust construction, the unit actively purges contaminants while simultaneously replenishing spaces with filtered outdoor air. Certified for operation in environments up to 50,000 ft³, its dynamic pressure gradient system ensures ISO 14644-1 compliant air quality across manufacturing facilities, logistics hubs, and large-scale public venues.

General assembly Drawing

Installation Protocol

Stage 1: Structural Reinforcement
Fabricate load-bearing framework using galvanized steel channels (min. 14-gauge), securing to ceiling joists with seismic-grade brackets spaced ≤16" apart. Verify structural integrity for 3× equipment weight capacity (min. 330lbs).

Stage 2: Core Unit Mounting
Position the aerodynamic housing onto vibration-damping isolators (included), maintaining 6" clearance from adjacent surfaces. Torque M12 mounting bolts to 45Nm using crisscross pattern.

Stage 3: Ductwork Integration
Engage the directional flange with cabinet's exhaust collar using quarter-turn interlock system. Conduct smoke-pencil test to confirm zero leakage at 2" static pressure.

Product Performance Curve

Product Performance Specifications

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd.

originated from Foshan City Nanhai Zhongxing Hardware and Electrical Appliance Factory (with brands including Zhongdian Fresh Air and Zhongdian New Science), is a modern National High-tech Enterprise mainly engaged in manufacturing:

DKT external rotor air conditioning fan (curved and square),

Mixed flow pressurized duct fan,

KTF stainless steel external rotor centrifugal fan cabinet,

Air curtain fan,

Purification type low-noise fan,

Centrifugal low-noise ventilation equipment,

EC frequency conversion digital energy-saving fans, etc.

The manufacturing base is located in Foshan City, Guangdong Province.

Since its establishment in 1997, we have always adhered to the quality line and actively created our own brand, Zhongdian. We have successively passed ISO9001, CE and CCC certifications, and obtained multiple utility model patents. Our comprehensive strength and brand influence rank among the top in the industry.

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd. adheres to the business philosophy of "technology driven development, respect for talent, reform and innovation, and pursuit of excellence", introduces numerous advanced automation equipment and 5S management systems, attaches importance to user experience of products, and takes continuous customer satisfaction as the business orientation. After unremitting efforts, we have become the leader in the fresh air system market.

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd. adheres to the principle of prioritizing quality over output, and has won the trust of users across the country with excellent quality and outstanding performance. And strive to enhance competitive advantages in pre-sales, in sales, after-sales and other aspects, and will continue to adhere to the creed of customer first and service first. It is the continuous iteration of products and services, striving to become a leading brand in mid to high end fresh air system equipment.