SongXin DX Rooftop Units offer powerful, space-saving HVAC performance — combining cooling, heating, and fresh air treatment directly from your rooftop, with lower energy consumption and simpler installation.
Rooftop installation frees indoor space
Lower energy costs
ERV, filtration & more
Minimal site work
Multi-protection system
Everything you need to know at a glance
| Category | Details | |
|---|---|---|
| What They Do | Cool, heat, and clean air all in one machine | |
| Where They Go | On building rooftops (saves indoor space) | |
| Power Range | 25kW to 520kW (small office to large warehouse) | |
| Best For | Shopping malls, offices, factories, hospitals | |
| Main Benefits | Lower costs, easy setup, saves space |
DX Rooftop Units are special air conditioning systems that sit on building rooftops. In fact, "DX" stands for "Direct Expansion," which means they cool air directly. Unlike other systems, they don't use chilled water pipes running through buildings.
Think of DX Rooftop Units as giant air conditioners that can both cool and heat your entire building from the roof.
These systems have several important parts that work together
The heart that pumps refrigerant around
Where cold air gets made
Where heat gets removed
Move air in and out of the building
Clean the air before it enters your building
Smart systems that manage everything automatically
Comprehensive technical specifications for optimal performance
| Parameter | Range (Typical Values) |
|---|---|
| Cooling/Heating Capacity (kW) | 25 ~ 520 (Fixed Speed) / 25 ~ 520 (Inverter) |
| Power Input (kW) | 11 ~ 64 |
| Air Flow (m³/h) | 5,250 ~ 27,000 |
| Refrigerant | R410A |
| Power Supply | 380V / 3Ph / 50Hz |
| Compressor Type | Scroll Type (High Efficiency) |
| Condenser Coil | Hydrophilic Aluminum Fin + Innergroove Copper Tube |
| Evaporator Coil | Hydrophilic Aluminum Fin + Innergroove Copper Tube |
| Noise Level (dB(A)) | 60 ~ 71 |
| Unit Dimensions (mm) | 950×1380×1250 ~ 1100×2740×2375 |
| Unit Weight (kg) | 430 ~ 1890 |
Cooling capacity & heating capacity can be tailored to specific project needs
R410A (standard), R134a, R407C, R1234ze (optional, eco-friendly)
Flexible unit dimensions and casing materials available
Return air, exhaust section, middle section, filtration modules can be added as per project requirements
Discover the advantages that make our rooftop units the industry's top choice
Combines cooling, heating, air distribution, and air treatment in one unit. Eliminates the need for separate machine rooms, chilled water pumps, or cooling towers, saving installation space and reducing complexity.
International brand compressors and optimized refrigeration system deliver 25.0 – 520.0 kW cooling capacity and up to 90,000 m³/h airflow. Energy consumption is lower than traditional chiller + AHU systems.
Available with multiple functional sections such as fresh air, return air, exhaust, and filtration. Modular design adapts to different project requirements. Adjustable capacity control ensures precise temperature & humidity regulation.
Equipped with scroll or semi-hermetic screw compressors for long-term stable operation. Multi-protection system (overload, high/low pressure, phase loss, etc.) guarantees safe operation in various environments.
Delivered as a single rooftop unit. Requires only duct and power connection. Compact footprint reduces building structural load. Simplified layout for convenient inspection, cleaning, and servicing.
Integrated microcomputer/PLC control with LCD or touchscreen interface. Real-time operation data, fault alarms, and remote monitoring functions. Compatible with BMS for centralized management.
Choose the right model for your specific application needs
Reliable & Cost-Effective
Smart & Energy-Efficient
| Feature |
Fixed Speed Model
|
Inverter Model
|
|---|---|---|
|
Cooling Capacity Range
|
35 ~ 180 kW (step control) |
35 ~ 180 kW (continuous modulation) |
|
Energy Efficiency
|
High efficiency, but lower at partial load |
Superior efficiency at partial load Best Choice |
|
Capacity Control
|
On/Off step control |
0–100% stepless capacity adjustment Precise Control |
|
Operating Cost
|
Lower initial investment, quick ROI Budget Friendly |
Lower long-term energy cost, higher savings |
|
Temperature Stability
|
Larger temperature fluctuations |
Stable temperature, better comfort Superior Comfort |
|
Noise Level
|
Higher noise during frequent start/stop |
Quieter operation with variable speed Ultra Quiet |
|
Best Applications
|
Large halls, warehouses, stable load sites |
Shopping malls, stadiums, airports, high-end projects with fluctuating loads |
Versatile solutions for diverse commercial and industrial environments
Office buildings, shopping malls, supermarkets, cinemas, convention centers
70 – 200 kW
One unit can cover medium-to-large open areas, easy rooftop installation reduces indoor space usage
Factories, light industrial halls, electronics assembly plants
150 – 350 kW
Provides stable air volume and cooling for spaces with large heat loads and continuous operation
Hotels, resorts, exhibition halls, gymnasiums
100 – 250 kW
Low-noise fans and optional fresh air modules ensure comfort for guests and crowds
Schools, universities, libraries, training centers
70 – 150 kW
Ensures stable comfort in classrooms, auditoriums, and study spaces with variable occupancy
Hospitals, laboratories, cleanrooms
120 – 220 kW
Modular design allows integration with filters, humidification, and precise control systems
Storage facilities, distribution hubs
200 – 500 kW
Strong air volume capability and rooftop installation save valuable indoor space
Explore the innovative functional sections that deliver superior performance and flexibility
Introduces outdoor air to improve indoor air quality. Optional filters (G3, F5, HEPA) and energy recovery can be added to reduce energy loss.
Multi-stage filtration (primary, medium, high-efficiency) to remove dust and contaminants. Easy slide-in/slide-out structure for quick maintenance.
Equipped with DX cooling coils (R410A standard, optional eco-refrigerants). Heating available via electric heater, hot water coil, or steam coil.
Provides humidity control using electrode humidifier, steam humidifier, or spray system. Suitable for electronics, pharma, and labs.
Plate heat exchanger or rotary wheel to recycle sensible/latent heat, improving energy efficiency in high fresh-air applications.
High-efficiency centrifugal or plug fans with frequency conversion (VFD). Low-noise, vibration-isolated design ensures stable operation.
Fresh air and return air blending with motorized dampers. Ensures precise air volume management and stable indoor environment.
Integrated PLC or microcomputer control. Real-time monitoring of temperature, humidity, and system status. Optional touchscreen interface and BMS connectivity.
