VRF Commercial HVAC Technician – Job Description
Overview

A VRF (Variable Refrigerant Flow) Commercial HVAC Technician installs, maintains, and repairs advanced VRF/VRV heating and cooling systems in commercial buildings. This role requires strong technical expertise, the ability to interpret complex system designs, and a commitment to delivering reliable climate‑control solutions for large facilities.

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Key Responsibilities

Install VRF/VRV systems including outdoor units, indoor fan coils, branch selector boxes, refrigerant piping, and controls.
Perform diagnostics and troubleshooting on multi‑zone VRF systems from manufacturers such as Carrier, Daikin, Mitsubishi, LG, Samsung, and Fujitsu.
Conduct routine maintenance including leak checks, coil cleaning, electrical inspections, and system performance testing.
Read and interpret blueprints, wiring diagrams, and manufacturer specifications for complex commercial HVAC layouts.
Commission new systems by configuring controls, verifying refrigerant charge, balancing airflow, and ensuring proper system communication.
Repair or replace components such as compressors, expansion valves, sensors, motors, and control boards.
Document all work performed including service reports, maintenance logs, and equipment performance data.
Collaborate with project managers, engineers, and building owners to ensure system performance meets design intent.
Follow safety protocols related to refrigerants, electrical systems, and commercial job sites.

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Required Skills & Qualifications

Strong knowledge of VRF/VRV technology, refrigerant flow principles, and multi‑zone system operation.
Proficiency with refrigeration tools, vacuum pumps, recovery machines, digital gauges, and diagnostic software.
Ability to diagnose electrical and communication issues in networked HVAC systems.
Experience with BACnet, Modbus, or proprietary control platforms is a plus.
EPA Section 608 Certification (required).
HVAC technical school training or equivalent field experience.
Ability to lift heavy equipment, work on ladders, and operate in commercial construction environments.
Strong communication and customer‑service skills.

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Typical Work Environment

Commercial buildings (offices, hospitals, schools, retail, data centers)
New construction and retrofit projects
Indoor and outdoor work in varying weather conditions
Collaboration with electricians, plumbers, and general contractors

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Preferred Experience

3+ years working with VRF systems
Manufacturer‑specific training (Carrier,Daikin, Mitsubishi City Multi, LG Multi‑V, etc.)
Experience commissioning large multi‑zone systems
Familiarity with building automation systems (BAS)

Air Conditioning Specialist, INC

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