variable refrigerant flow systems (VRF)

At Hamilton Industries we specialize in Variable Refrigerant Flow (VRF) systems from every major manufacturer. Whether you’re building a new home, condo tower, renovating an office, or retrofitting a retail space, our certified technicians deliver efficient system design, precise installation, rigorous commissioning, and proactive maintenance. We service all brands including — Lennox, Trane, Mitsubishi, Daikin, Toshiba, LG, Samsung, Panasonic, Carrier and others. Our goal is always focused on optimizing comfort, energy efficiency, and long service life of your HVAC investment.

VRF System Quote Request

VRF Brands – Installations, Servicing, Maintenance and Repair

Lennox VRF Systems
Trane VRF Systems
Daikin VRF Systems
Panasonic VRF Systems
Carrier VRF Systems
Fujitsu VRF Systems
Samsung VRF Systems
LG VRF Systems
Mitsubishi VRF Systems
Toshiba VRF Systems
Midea VRF Systems
Hitachi VRF Systems
Johnson Controls VRF Systems
York VRF Systems

VRF Installation (All Brands)

Our qualified installation teams handle the entire install: indoor units, outdoor units, refrigerant piping, controls, condensate management, and electrical connections. We follow manufacturer installation manuals and best practices to protect performance and warranty.

  • Pre-installation site review and coordination.
  • Concrete pad/curb and seismic anchoring for condensers.
  • Correct refrigerant charging method and vacuum procedures.
  • Leak testing and pressure hold tests.
  • Proper insulation and routing of refrigerant piping.
  • Commissioning handover and training for facility staff.

VRF Preventive Maintenance & Service Plans

Protect your investment with scheduled VRF maintenance. Our plans are customizable (monthly/quarterly/biannual/annual) and include inspections, filter changes, cleaning, refrigerant checks, and seasonal tuning to maximize efficiency and extend equipment life.

Typical VRF maintenance tasks:

  • Clean indoor fan coil units and condensers.
  • Replace/clean filters and check drain lines.
  • Inspect electrical connections and controls.
  • Check refrigerant levels and detect slow leaks.
  • Review historical data and adjust setpoints for efficiency.

Diagnostics & Repairs — All Brands

We troubleshoot refrigerant, electrical, controls, compressor, and sensor faults on VRF systems from any manufacturer. We carry diagnostic tools, refrigerant recovery equipment, and replacement parts. Emergency repairs are available 24/7 for critical systems.

Common repairs we handle:

  • Compressor replacement and motor repairs.
  • Electronic expansion valve and PCB replacement.
  • Refrigerant leak detection, reclaim and recharge.
  • Fan motor replacement and fan coil rebuilds.
  • Control board troubleshooting and sensor replacement.

VRF Retrofits & Upgrades

If your building needs improved efficiency or modernization, we provide VRF retrofit services: replacing old systems, upgrading controls, or converting single-split systems to VRF. We can also integrate VRF systems into modern BAS for energy optimization.

Upgrade examples:

  • Install of advanced thermostats and IoT controllers.
  • Heat recovery VRF upgrades for mixed heating/cooling zones.
  • Variable speed compressors and inverter testing.
  • Phased retrofit to minimize tenant disruption.