Install a ducted split system is one of the best ways to achieve comfortable, efficient, and evenly distributed cooling or heating in your home or commercial space. Whether you are upgrading your HVAC system or setting up climate control in a new property, a ducted split system offers powerful performance and quiet operation. However, correct installation is crucial. A poorly installed system may lead to reduced efficiency, higher costs, and frequent breakdowns. That’s why it’s important to understand the entire installation process or choose a professional HVAC Service provider.

Table of Contents
Understanding the Ducted Split System
A ducted split system consists of two main units:
- Indoor unit (fan coil unit)
- Outdoor unit (compressor)
These units work together to circulate air through insulated ducts hidden in the ceiling. The conditioned air flows through diffusers and reaches each room, providing uniform comfort.
Compared to traditional split ACs, a ducted system offers:
- A cleaner aesthetic with no visible wall units
- Better temperature control
- Reduced noise
- Higher efficiency
- Centralized management
For homes, villas, offices, and commercial buildings in Saudi Arabia, a ducted split system is a popular choice due to strong cooling performance in high temperatures.
How to install a ducted split system
Installing a ducted split system is not a DIY task. It requires:
- Install a ducted: accurate load calculation
- Install a ducted: correct duct design
- Install a ducted: safe electrical connections
- Install a ducted: refrigerant handling expertise
- Install a ducted: compliance with HVAC safety standards
A professional Install a ducted split system service performs optimally, lasts longer, and consumes less energy. At Saudi HVAC Service, our certified technicians follow international installation guidelines to deliver clean, reliable, and long-lasting results.
How to Install a Ducted Split System: Step-by-Step Guide
Below is the complete installation process, explained in simple terms so customers can understand how the system is set up.
1. Conducting a Site Inspection
The first step is evaluating the property. Our HVAC Service team inspects:
- The building size and design
- Ceiling height
- Available space for ducts
- Location for the indoor unit
- Vent placement options
- Outdoor unit placement
This inspection ensures the system’s capacity aligns with the cooling or heating needs of the building. A wrong-sized unit leads to poor performance and high energy bills.
2. Calculating Cooling Load
To determine the right tonnage of the ducted system, technicians calculate the cooling load based on:
- Room size
- Sunlight exposure
- Insulation level
- Number of occupants
- Heat-generating appliances
Accurate load calculation ensures the system operates efficiently and prevents overworking.
3. Selecting the Right Ducted Split System
Once requirements are clear, we select a suitable unit from leading HVAC brands. Saudi HVAC Service offers installation of:
- Carrier
- Trane
- LG
- Gree
- Mitsubishi
- York
Choosing a reliable system ensures durability, strong cooling, and energy efficiency.
4. Preparing Ceiling Space and Duct Layout
The duct layout is designed to deliver balanced airflow. Our HVAC Service team plans:
- Return air grills
- Supply diffusers
- Flexible ducts
- Hard ducts
- Branch connections
All ducts must be insulated properly to prevent cooling loss in hot climates like Saudi Arabia.
5. Installing the Indoor Unit (Fan Coil Unit)
The indoor unit is usually mounted in the ceiling void or a designated mechanical room. Steps include:
- Securing the FCU with anti-vibration mounts
- Connecting ducts
- Installing the drain line
- Providing electrical wiring
- Ensuring proper access for future maintenance
Correct alignment prevents noise and ensures smooth airflow.
6. Mounting the Outdoor Condenser Unit
The outdoor unit is placed on the roof, balcony, or a concrete slab. Technicians ensure:
- Proper ventilation
- Distance from direct heat sources
- Secure mounting
- Vibration pads
- Compliance with safety guidelines
Outdoor placement is critical for long-term performance.
7. Installing and Connecting the Ductwork
This step involves fitting all ducts based on the layout plan. Key standards include:
- Using insulated ducts
- Ensuring airtight sealing
- Avoiding sharp bends
- Providing balanced airflow to each room
Quality ductwork significantly affects system performance.
8. Electrical and Control Wiring
Electrical wiring connects the thermostat, indoor unit, and outdoor unit. Smart thermostats are often installed to give users:
- Temperature control
- Energy savings
- Smartphone access
Our HVAC Service ensures all wiring follows the latest safety standards.
9. Refrigerant Piping and Leak Testing
Refrigerant pipes are installed between the indoor and outdoor units. Technicians then:
- Test for leakage
- Vacuum the lines
- Charge the refrigerant
This step is essential to prevent cooling loss and compressor damage.
10. System Testing and Commissioning
Once everything is installed, we test the entire ducted system:
- Airflow measurement
- Thermostat calibration
- Drain line inspection
- Noise level testing
- Pressure checks
- Cooling performance evaluation
Finally, the system is handed over to the customer with complete instructions.
Also read this HVAC Service How to Improve Indoor Air Quality in Winter: by Saudi HVAC Service
Maintenance Tips for Long System Life
To ensure maximum efficiency, follow these tips:
- Clean filters every 3 months
- Schedule annual maintenance
- Check for duct leaks
- Keep outdoor unit free from dust
- Inspect thermostat performance
Saudi HVAC Service also offers preventive maintenance packages to keep your system running at peak performance.
Why Choose Saudi HVAC Service?
Your ducted split system is an investment, and you deserve the best installation service. Our advantages include:
✔ Certified HVAC technicians
✔ High-quality ductwork
✔ Accurate load calculation
✔ Affordable pricing
✔ 24/7 support across Saudi Arabia
✔ Expertise in all major HVAC brands
✔ Guaranteed workmanship
For reliable installation and long-term HVAC performance, Saudi HVAC Service is your trusted partner.
Location: Industrial City, Al Sina’iyah, Riyadh, Saudi Arabia
