Variable Refrigerant Flow (VRF/VRV)

Advanced HVAC technology that varies the refrigerant flow to precisely match the required heating or cooling loads, providing exceptional energy efficiency and zoned comfort.

Top Manufacturers

Pioneer in VRF/VRV technology with extensive product range and advanced control systems.

View Daikin resources

Leading VRF manufacturer with innovative City Multi systems and powerful controls.

View Mitsubishi Electric resources

Cutting-edge VRF systems with industry-leading efficiency and design flexibility.

View LG resources

Reliable VRF solutions with excellent part-load performance and compact designs.

View Fujitsu resources

Common Issues

VRF E6 error code

Symptoms:

Communication error between indoor/outdoor units, system not responding

Solution:

Check communication wiring, verify termination resistors, inspect for interference, test control boards, ensure proper addressing.

VRF system not heating

Symptoms:

No heat output, insufficient heating, mode switching issues

Solution:

Check reversing valve operation, verify refrigerant charge, test temperature sensors, inspect control signals, ensure proper mode selection.

Communication loss

Symptoms:

Units not responding to controls, error codes, intermittent operation

Solution:

Inspect communication wiring, check for interference sources, verify termination resistors, update firmware if available.

Cost Information

VRF system installation

Average Cost:

$25,000-$85,000

Factors Affecting Cost:

System size, number of zones, controls package, refrigerant piping requirements

VRF troubleshooting

Average Cost:

$500-$1,500

Factors Affecting Cost:

Diagnostic complexity, parts replacement needs, travel distance, system size

Compressor replacement

Average Cost:

$8,000-$20,000

Factors Affecting Cost:

Compressor type, size, refrigerant handling, accessibility