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Possesses strong capabilities in the development, research and manufacturing of complete sets of central air-conditioning equipment as well as related products such as ventilation systems and composite ducts.

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Address: 17 km along Provincial Highway 324, Wucheng County, Dezhou City, Shandong Province

Phone: +8613210990300

WhatsApp : 8618105445078

Email: 15110710633@163.com

Direct Expansion Air Handling Unit

Direct Expansion (DX): The refrigerant directly exchanges heat with the air, eliminating the need for cooling-water or chilled-water systems. Equipped with a built-in compressor, it is a primary-refrigerant all-air system. A DX packaged unit consists of an indoor air-handling section and an outdoor air-cooled condenser section, connected directly via copper tubing, resulting in a compact and simple configuration that requires no dedicated equipment room, water pumps, or cooling towers.

Category:

Host type

Fluorine machine

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Keywords:

Host type

Fluorine machine

Product Description

I. Product Definition and Structure
Direct Expansion (DX) : The refrigerant directly exchanges heat with the air, eliminating the need for cooling water or chilled water systems; it is equipped with a built-in compressor and falls under A single-chiller all-air system . The Chengyun direct-expansion unit is divided into Indoor air handling section + Outdoor air-cooled condensing section It is directly connected via copper piping, featuring a simple structure that eliminates the need for a machine room, water pumps, or cooling towers.
II. Specifications and Configuration
Air volume : 1,500–100,000 m³/h
Cooling capacity : 8~300kW
Aircraft model : Single-cooling, heat-pump cooling and heating, constant temperature and humidity, purification type, and total fresh-air type
Compressor : Fully enclosed scroll / screw, with optional variable frequency
Filter : Primary efficiency G4, Medium efficiency F7, High efficiency H13 (purification type)
Shell : Color-coated steel sheet / aluminum alloy, corrosion-resistant and durable
III. Core Features
System Minimalism : No plumbing required, no risk of leaks, quick installation, and minimal maintenance.
High efficiency and energy saving : Direct heat exchange with no secondary heat-exchange losses, resulting in a high EER; inverter models are even more energy-efficient.
Precise temperature and humidity : Constant-temperature and constant-humidity models can achieve ±1°C and ±5% RH.
Purification optional : Supports high-efficiency filtration for junior high schools, UV sterilization, and activated carbon deodorization.
Silent and stable : Low-noise fan + vibration-damping design, smooth operation, multiple protection features
Flexible installation : Can be installed on roofs, floors, or via overhead hoisting, saving space.
IV. Applicable Scenarios
Shopping malls, hotels, office buildings, gymnasiums, stations, and more Comfort air conditioning
Electronics factories, pharmaceuticals, food processing, operating rooms, laboratories, etc. Purification / Constant Temperature and Humidity
Projects involving urban renewal, without a machine room, and without cooling water supply
V. Summary of Advantages
Water-based system Low investment, short construction period, and low failure rate.
Split-type air conditioner Large airflow, wide coverage, and better suited for centralized air supply.
Compared with traditional central air conditioning More space-efficient and easier to maintain
Direct Expansion Air Handling Unit delivers efficient cooling and air distribution through direct refrigerant expansion. It offers reliable temperature control, energy-saving performance, compact design, and flexible installation for commercial and industrial HVAC applications