VRF Ducted Unit

REF-DU(VRF)

The Refria VRF Ducted Unit is a concealed ducted indoor unit designed for modern VRF air conditioning systems. Featuring an ultra-slim body, constant airflow technology, low-noise operation and flexible installation options, it delivers efficient and uniform air distribution while remaining hidden above the ceiling. Ideal for hotels, offices, apartments, villas and commercial buildings, this duct type indoor unit combines energy efficiency, comfort and architectural aesthetics, making it an excellent solution for a wide range of HVAC projects.

Quantity:

Contact Now

VRF Indoor Air Conditioning Solutions

VRF Ducted Unit

Concealed Ducted Indoor Unit for Modern VRF Systems

The Refria VRF Ducted Unit is a high-performance concealed ducted unit designed for commercial and residential VRF air conditioning systems. Featuring an ultra-slim 199mm body, constant airflow technology, low-noise operation and flexible installation options, this duct type indoor unit delivers uniform air distribution while remaining hidden above the ceiling. Ideal for hotels, offices, apartments, villas and retail projects, Refria ducted indoor units provide energy-efficient comfort, reliable performance and seamless integration with modern VRF systems.

199mm

Ultra Slim Body

1200mm

Drain Pump Lift

Constant

Airflow Control

56kBtu/h

Maximum Capacity

What is a VRF Ducted Unit?

A ducted VRF unit is a concealed indoor air conditioning unit connected to a Variable Refrigerant Flow system. Installed above the ceiling and connected to air ducts, it distributes conditioned air through diffusers while remaining completely hidden from view. Compared with exposed indoor units, concealed ducted units provide cleaner aesthetics, more flexible airflow distribution and superior comfort for multi-room applications.

Key Features

🌬️

Constant Airflow Technology

The intelligent airflow control system automatically compensates for changes in duct resistance, ensuring stable air delivery and consistent comfort throughout the service life of the ducted VRF unit.

📏

Ultra-Slim 199mm Design

With a body height of only 199mm, the concealed ducted unit fits easily into limited ceiling spaces and simplifies installation in modern buildings.

💧

1200mm High-Lift Drain Pump

A built-in condensate pump with a 1200mm lift height allows flexible drain piping layouts and reduces installation constraints.

⚠️

Fault Feedback Function

The system provides early warning notifications for drain pump abnormalities, helping reduce maintenance risks and system downtime.

🔇

Low Noise Operation

Optimized fan design and airflow management deliver quiet operation, making these ducted indoor units suitable for hotels, offices and residential environments.

⚙️

Flexible Static Pressure Control

Multiple external static pressure settings enable the duct type indoor unit to adapt to different duct layouts and project requirements.

Applications

🏨 Hotels & Resorts

🏢 Office Buildings

🏬 Retail Stores

🏠 Apartments & Villas

🏫 Schools & Universities

🏥 Healthcare Facilities

Technical Specifications

The Refria ducted VRF unit series covers capacities from 1.5kW to 16.0kW, providing flexible solutions for residential, commercial and hospitality projects. These concealed ducted units are designed for energy efficiency, low noise operation and flexible duct installation.

Model	Cooling Capacity	Heating Capacity	ESP	Dimensions (WxHxD)
MI2-05T3DHN18(At)	1.5kW	1.8kW	10(10-50)Pa	550×199×450mm
MI2-06T3DHN18(At)	1.8kW	2.2kW		550×199×450mm
MI2-07T3DHN18(At)	2.2kW	2.5kW		550×199×450mm
MI2-09T3DHN18(At)	2.8kW	3.2kW		550×199×450mm
MI2-12T3DHN18(At)	3.6kW	4.0kW		700×199×450mm
MI2-15T3DHN18(At)	4.5kW	5.0kW		900×199×450mm
MI2-18T3DHN18(At)	5.6kW	6.3kW		900×199×450mm
MI2-24T3DHN18(At)	7.1kW	8.0kW		1100×199×450mm
MI2-28T2DHN18(At)	8.0kW	9.0kW	40(10-160)Pa	1050×245×750mm
MI2-32T2DHN18(At)	9.0kW	10.0kW		1050×245×750mm
MI2-40T2DHN18(At)	11.2kW	12.5kW		1050×245×750mm
MI2-56T2DHN18(At)	16.0kW	18.0kW	50(10-160)Pa	1400×245×750mm

Why Choose Refria VRF Ducted Units?

Refria specializes in commercial HVAC manufacturing and global project supply. Our ducted VRF units are engineered to deliver energy efficiency, installation flexibility and long-term reliability for modern buildings. Designed for contractors, distributors, developers and MEP consultants, Refria concealed ducted units combine advanced airflow control, compact dimensions and low operating costs. With extensive OEM/ODM experience and international project support, we help customers achieve efficient and sustainable climate control solutions worldwide.

✓

OEM & ODM Support

Customized branding, specifications and project solutions.

✓

Global Export Experience

Serving distributors, contractors and developers worldwide.

✓

Professional Technical Support

Project selection, installation guidance and after-sales assistance.

✓

Reliable Product Quality

Strict quality control and dependable long-term performance.

Frequently Asked Questions

What is a ducted VRF unit?

A ducted VRF unit is a concealed indoor air conditioning unit connected to a VRF system. It is installed above the ceiling and distributes conditioned air through ducts and diffusers, providing uniform comfort while keeping the equipment hidden from view.

What is the difference between a ducted VRF unit and a wall mounted unit?

A wall mounted unit delivers air directly into a room and remains visible on the wall. A duct type indoor unit is concealed above the ceiling and supplies air through ductwork, offering better aesthetics and more flexible air distribution.

Where are concealed ducted units commonly used?

Concealed ducted units are widely used in hotels, office buildings, villas, apartments, retail stores, schools and healthcare facilities where a clean interior appearance is required.

Does the unit include a drain pump?

Yes. Refria ducted indoor units are equipped with a built-in drain pump featuring a maximum lift height of 1200mm, making condensate drainage easier during installation.

What refrigerants are supported?

Depending on system configuration, the unit supports R410A and R32 refrigerants for efficient and environmentally responsible operation.

Can Refria provide OEM or private label services?

Yes. Refria offers OEM and ODM manufacturing services for distributors, importers and HVAC brands seeking customized products and packaging solutions.

Professional Ducted Indoor Units for Modern HVAC Projects

As modern commercial and residential buildings increasingly demand energy efficiency and architectural aesthetics, ducted indoor units have become one of the most popular solutions for VRF air conditioning systems. Unlike exposed indoor units, a concealed ducted unit remains hidden above the ceiling while delivering conditioned air through duct networks and ceiling diffusers. This approach creates a cleaner interior appearance and allows more flexible airflow distribution. Refria VRF ducted units are engineered to meet the needs of hotels, apartments, offices and commercial developments by combining compact dimensions, stable airflow performance and advanced installation flexibility. The ultra-slim 199mm body design makes installation possible even in limited ceiling spaces, while constant airflow technology helps maintain consistent comfort throughout the occupied area. For distributors, contractors and project developers looking for reliable duct type indoor units, Refria provides comprehensive HVAC solutions backed by professional technical support and international project experience.

Request a Quote for VRF Ducted Units

Looking for a reliable ducted VRF unit manufacturer? Contact Refria for product catalogs, technical specifications, OEM solutions, project consultation and competitive wholesale pricing.

Get a Free Quote

Refria International Co., Limited

Professional HVAC Manufacturer & Exporter