SX
Direct Expansion Cooling Technology

SongXin DX Split System — High-Capacity Direct Expansion Cooling for Modern Commercial Buildings

12–480 kW Cooling Output
Air Volume 2,300–76,000 m³/h
Fast Installation
30% Energy Savings

Ideal for Offices, Restaurants, Hotels, Labs, Industrial Workshops & Large Retail Spaces

DX Split System: The Complete Guide to Efficient Business Cooling Solutions

Quick Facts: DX Split System Benefits

Energy Savings

Up to 30% lower electricity bills

Installation Time

50% faster than traditional systems

Coverage Area

Perfect for 500-50,000 square feet

Best For

Offices, shops, restaurants, factories

Are you tired of high cooling bills? Moreover, does your current system break down too often? If so, then a DX Split System might be exactly what your business needs. Furthermore, these smart cooling systems can cut your energy costs while keeping everyone comfortable.

What is a DX Split System?

A DX Split System is like a super-smart air conditioner for businesses. Additionally, it has two main parts that work together perfectly:

Outside unit:

This box sits outside your building. It contains the compressor that does the heavy work.

Inside unit:

This part goes inside your building. It blows cool or warm air where you need it.

Fun Fact:

The "DX" stands for "Direct Expansion." This means the system cools air directly without using water pipes like old systems do.

Unlike traditional systems, a DX Split System connects these parts with simple refrigerant pipes. As a result, installation becomes much easier and faster.

Air Volume:

2,300 m³/h – 76,000 m³/h

Cooling Capacity:

12 kW – 480 kW

Optional Functional Sections:

Filtration, heating, humidification, sterilization, etc.

Application:

Widely used in metallurgy, chemical, machinery, electronics, power plants, as well as in commercial centers, hospitals, hotels, and office buildings.

Top 7 Benefits of DX Split Systems for Your Business

Choosing a SongXin DX Split System brings many advantages. Moreover, each benefit can help your business save money and run better:

Benefit
What This Means for You
Lower Energy Bills
Save 20-30% on electricity costs each month
Faster Installation
Get your system running in days, not weeks
Quiet Operation
Workers stay focused without noise distractions
Easy Maintenance
Fewer repair calls and lower service costs
Smart Controls
Control temperature from your phone or computer
Clean Air
Built-in filters remove dust and allergens
Flexible Design
Works in small offices or large warehouses

DX Split System – Parameter Range (Typical Values)

Parameter
Range (Typical Values)
Cooling Capacity (kW)
12 – 480
Heating Capacity (kW)
13 – 500
Air Flow (m³/h)
2,300 – 76,000
Power Input (kW)
3.5 – 157
Compressor Type
Scroll / Screw (depending on size)
Refrigerant
R22 / R407C (others optional)
Indoor Unit Dimensions (mm)
720 × 820 × variable → 3320 × 3100
Outdoor Unit Dimensions (mm)
750 × 1250 × 750 → 3380 × 2350 × 6000
Piping Connection
Liquid pipe: 9.52–34.9 mm; Gas pipe: 19.05–92 mm
Power Supply
380V / 3Ph / 50Hz

Note: Units can be customized according to project requirements (cooling capacity, air flow, functional sections such as filtration, heating, humidification, sterilization, etc.).

Typical Uses for SongXin DX Split System

Scenario
Recommended Cooling Capacity
Why
Medium Offices, Shops, Banks
30 – 70 kW
Compact installation and quiet indoor operation.
Hotels & Restaurants
50 – 120 kW
Reliable comfort cooling with zoning control.
Schools & Training Centers
70 – 150 kW
Stable performance, easy ducted distribution.
Laboratories & Healthcare Facilities
50 – 120 kW
Optional filters and humidifiers ensure clean and controlled air.
Light Industrial Workshops
100 – 200 kW
Handles higher internal loads, flexible ducting for large areas.

DX Split System Components: What's Inside?

Every DX Split System uses high-quality parts. Additionally, understanding these components helps you make better decisions:

1

Compressor (The Heart of Your DX Split System)

Small systems: Use scroll compressors for quiet operation
Large systems: Use screw compressors for heavy-duty cooling
Benefit: Reliable performance for years without problems
2

Heat Exchanger (The Cooling Expert)

Made with copper tubes and aluminum fins
Designed for maximum heat transfer
Therefore, your system cools faster and uses less energy
3

Smart Control System

Touch screen controls that are easy to use
Remote monitoring through your smartphone
Automatic temperature adjustments
As a result, you always have perfect comfort
4

High-Efficiency Fans

Move air quietly and efficiently
Special vibration control for smooth operation
Multiple speed settings for different needs
5

Optional Filters & Purifiers

Multi-functional purification system for PM2.5, VOCs, formaldehyde, benzene, and harmful gases.

DX Split System – Indoor Unit Functional Sections

1
Mixing Section

Mixing Section

  • Ensures fresh air and return air are fully mixed and evenly distributed.
  • Proportion of fresh air, return air, and exhaust air can be adjusted as required.
  • Flexible design to achieve optimal ventilation performance.
2
Air Volume Regulation Section

Air Volume Regulation Section

  • Controls the ratio of fresh air, return air, and exhaust air via dampers.
  • Streamlined aluminum airfoil blades reduce resistance and noise.
  • Minimizes energy loss while ensuring balanced air distribution.
3
Filtration Section

Filtration Section

  • Configured with different grades of filters to ensure air quality:
  • • Primary filters (panel or bag type)
  • • Medium efficiency filters (optional)
  • • High efficiency filters (HEPA, optional)
  • Effectively removes dust, particles, and harmful substances.
4
Electric Heating Section

Electric Heating Section

  • Equipped with stainless steel electric heating elements or PTC heaters.
  • Available in multiple connection levels to suit various heating capacities.
  • Provides stable, efficient supplementary heating.
5
Heating Section

Heating Section (Optional)

  • Offers various heating solutions:
  • • Electric heating
  • • Hot water coil heating
  • • Steam heating
  • • High-pressure or low-pressure hot water
  • Flexible selection based on climate and project requirements.
6
Fan Section

Fan Section

  • Equipped with high-efficiency centrifugal fans.
  • Designed with vibration-damping structure, ensuring smooth, low-noise operation.
  • Available in multiple sizes to handle different airflow rates.
  • Provides stable and adjustable air delivery.
7
Silencer Section

Silencer Section

  • Reduces noise at supply and return air outlets.
  • Two types available:
  • • Resistive silencer: Thick sound-absorbing lining, effective for wide frequency noise.
  • • Micro-perforated silencer: Metal material, absorbs specific frequency bands with low airflow resistance.
  • Helps create a quiet and comfortable indoor environment.

Ready to Upgrade to a DX Split System?

Don't let an outdated cooling system hurt your business profits. Instead, contact our experts today to learn how a DX Split System can transform your workspace. Additionally, SongXin offers free consultations to help you choose the perfect system for your needs.

Ready to Save Money? Get your free DX Split System consultation today! Our experts will visit your location and provide a custom quote within 24 hours.
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