Job Description

Job Summary

The VRF Maintenance Technician is responsible for the specialized preventative maintenance, diagnostics, and repair of complex Variable Refrigerant Flow (VRF/VRV) systems. This role ensures all VRF equipment operates reliably, efficiently, and in compliance with manufacturer specifications and safety standards.

Key Responsibilities

Preventative Maintenance:

Execute routine and preventative maintenance (PPM) schedules on all VRF indoor and outdoor units, heat recovery units, and refrigerant branch boxes.

System Diagnostics:

Utilize specialized manufacturer-specific diagnostic tools and software to identify and troubleshoot complex mechanical, electrical, and control faults within the VRF network.

Component Repair:

Repair or replace critical VRF components, including inverter boards, variable speed compressors, Electronic Expansion Valves (EEVs), sensors, and communication wiring.

Refrigerant Management:

Accurately measure, recover, reclaim, and recharge VRF systems. Ensure precise refrigerant charge levels are maintained, which is critical for VRF system performance.

System Integrity:

Inspect and maintain complex refrigerant piping, branch joints (Refnet systems), and insulation to prevent leaks and ensure optimal flow.

Controls:

Calibrate and maintain VRF control systems, thermostats, centralized controllers, and integration with Building Management Systems (BMS).

Documentation:

Accurately document all service calls, maintenance reports, detailed fault descriptions, and parts inventory using the computerized maintenance management system (CMMS).

Safety & Compliance:

Adhere strictly to all health, safety, and environmental (HSE) policies, particularly concerning high voltage electrical work and the safe handling and disposal of refrigerants.

Qualifications and Requirements

Education & Certification

High School Diploma or GED is required; a Technical Diploma or Associate's Degree in HVAC/R Technology is highly preferred. Valid

Refrigerant Handling Certification

(e.g., EPA Universal or equivalent regional certification). Manufacturer training certifications from major VRF brands (e.g., Daikin, Mitsubishi, LG, Samsung) are a significant advantage.

Experience

Minimum of

[3-5] years

of progressive experience in HVAC service and maintenance.

At least [2] years

of dedicated, hands-on experience in the installation, servicing, and repair of large-scale VRF/VRV systems.

Technical Skills

Advanced knowledge

of VRF technology, including inverter operation, variable speed compressors, and complex control logic. Proficiency in reading and interpreting detailed electrical schematics, piping diagrams, and technical specification manuals for VRF units. Familiarity with network communication protocols (e.g., Modbus, BACnet) used for VRF system integration. Strong electrical troubleshooting skills, including knowledge of low-voltage controls and high-voltage power circuits (up to 480V, depending on site).

Physical Requirements

Ability to work in plant rooms, on rooftops, and in various climate conditions. Capable of lifting and manoeuvring heavy equipment (e.g., tools, parts). Must be willing to be on-call or work outside of standard business hours as required for emergency repairs.
Job Type: Full-time