What Is a VRF system?

Glad you asked.

Variable Refrigerant Flow (VRF) HVAC systems consist of outdoor units connected to multiple indoor units via refrigerant piping to provide cooling and heating to individual zones. The outdoor units can modulate capacity based on the requirements of the individual zones, thus saving energy by not always running at 100% capacity and improving occupant comfort by maintaining temperature as needed in each individual zone. Now, when someone asks "what is VRF?" you'll be in the know.

A VRF system where all the bells and whistles come standard.

With design flexibility, premium comfort, and superior performance, Samsung DVM S Variable Refrigerant Flow (VRF) HVAC systems offer just the right solution for any application.

Discover our entire line of innovative VRF HVAC systems. They’re smart products for smarter businesses.

Flash injection technology.

DVM S systems† feature flash injection compressor technology that increases heating performance with a two-phase refrigerant that is activated during heating mode in low ambient conditions.

†Excludes DVM S Eco 3, 4, and 4.5 ton, and DVM S Water systems.

Wide operating range.

DVM S systems are designed to operate from 120°F (49°C) ambient to as low as -13°F (-25°C).

Ultimate zoning solution.

Samsung DVM S systems allow for precise temperature control in multiple zones, providing comfort to a wide range of occupants. Heat Recovery systems add the capability to heat and cool separate zones simultaneously.

Wide variety of indoor unit options.

Our indoor units offer superior performance, flexible installation, and ease of operation. These units employ innovative technologies, like our WindFree™* cooling technology, to optimize comfort in any environment. With over 10 types of indoor units, ranging from 5,000 to 96,000 Btu/h, there are solutions for almost any application.

*The WindFree™ unit delivers an air current that is under 0.15 m/s while in WindFree™ mode. Air velocity that is below 0.15 m/s is considered “still air” as defined by ASHRAE 55-2013 (American Society of Heating, Refrigerating, and Air-Conditioning Engineers).

Compact size.

The small outdoor unit footprints of our VRF systems allow for installation in applications where space is limited, such as on crowded rooftops, or in tight mechanical closets.

Extended piping length.

DVM S systems** offer installation flexibility with extended piping length up to 722 ft., vertical separation up to 361 ft. between the outdoor unit and furthest indoor unit, and 164 ft. between the highest and lowest indoor units.

**Excludes DVM S Eco, DVM S Water, and DVM Chiller systems.

Advanced commissioning and service.

DVM S systems are equipped with a removable EEPROM chip on the main circuit board to store startup information, system settings, serial number, and other field programmed data. This allows for ease of startup, commissioning, product registration, and future service work when using Samsung service software (S-Net Pro2).

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View VRF HVAC Case Studies