Equipment Expertise
What is a VRF / VRV system?
Variable refrigerant flow (VRF), also known as variable refrigerant volume (VRV), systems connect multiple indoor units to an outdoor refrigeration system. They adjust refrigerant flow to match the heating or cooling demand in individual zones.
Where you’ll find this equipment
- Office buildings and tenant spaces
- Retail stores and commercial suites
- Medical and dental offices
- Buildings with several comfort zones
System Operation
How It Works
Inverter-driven compressors vary their output as indoor loads change. Indoor units exchange heat with room air, while controls coordinate temperatures and operating modes. Heat-recovery systems can provide heating and cooling to different zones at the same time; heat-pump systems generally share an operating mode.
Equipment Overview
Main Components
Outdoor unit
Compressors, fans and heat exchangers move heat between the building and outdoors.
Indoor units
Ceiling, wall or ducted units condition air in individual spaces.
Refrigerant piping
Piping and, where fitted, branch controllers connect the system’s zones.
Zone controls
Sensors and controllers coordinate room demand and system operation.
Common Problems We Find
- Fault codes and communication errors
- Uneven temperatures between zones
- Dirty filters or indoor coils
- Blocked condensate drains
- Refrigerant leaks or charge issues
- Incorrect schedules or operating modes
Why Maintenance Matters
Clean filters, accessible coils and drains help indoor units deliver reliable airflow. Reviewing fault history, control settings and outdoor-unit condition helps identify problems before they affect more zones.
- More consistent building operation
- Earlier identification of wear and deficiencies
- Clearer repair and replacement priorities
The RK Approach
Service that considers the whole building
RK Climate Control supports commercial equipment troubleshooting, preventative maintenance and replacement planning throughout the Lower Mainland. We focus on practical diagnostics, clear documentation and the way each piece of equipment works with the rest of the building.
Include the system brand, any displayed fault codes and whether one zone or the whole system is affected.
Keep Your Equipment Running Reliably
Request service or discuss a maintenance plan for your building.