VRF Systems

BMS connection, refrigerant leak monitoring and room sensing around a VRF installation.

A variable refrigerant flow (VRF) system runs several indoor units from one outdoor unit over a shared refrigerant circuit. The VRF manufacturer supplies the outdoor units, indoor units and controllers. Around that equipment, a project usually also needs a link to the BMS, refrigerant leak monitoring, room sensing and run status.

Applications

  • Offices and commercial floors
  • Hotels and serviced apartments
  • Villas and residential towers
  • Retail units and clinics

What it includes

  • Outdoor units and indoor units on a shared refrigerant circuit
  • Central and room controllers from the VRF manufacturer
  • BACnet or Modbus gateway to the BMS
  • Room and duct refrigerant leak detectors
  • Room temperature and humidity sensors

Networks

  • BACnet/IP
  • Modbus RTU
  • VRF control bus