Job Description

We are looking for a highly skilled Senior HVAC Technician with extensive Oil & Gas industry experience to join our maintenance team. The successful candidate will be responsible for the installation, operation, maintenance, troubleshooting, and repair of centrifugal chillers and VRF (Variable Refrigerant Flow) systems in industrial and commercial facilities. This role demands a proactive professional who can minimize downtime and ensure optimal system performance.

QUALIFICATIONS & EDUCATION

• Diploma or ITI (Industrial Training Institute) certification in Refrigeration, Air Conditioning, or Mechanical Engineering

WORK EXPERIENCE

• Minimum 10 years of hands-on experience in the Oil & Gas sector (onshore or offshore), specifically working with chiller systems and VRF technology
• Proven track record of working on large-capacity centrifugal chillers (e.g., Carrier, York, Trane, Mitsubishi, Daikin) and multi-zone VRF systems.

TECHNICAL KNOWLEDGE & SKILLS

• In-depth knowledge of centrifugal chiller operation, including refrigeration cycles, oil management, purge units, and electronic expansion valves.
• Strong understanding of VRF systems (heat pump and heat recovery), including branch controllers, refrigerant piping design, and addressable controls.
• Ability to read and interpret:
• P&IDs (Piping and Instrumentation Diagrams)
• Electrical schematics and wiring diagrams
• Manufacturer technical manuals
• Mechanical engineering drawings
• Skilled in using diagnostic tools such as:
• Digital manifolds, multimeters, megohmmeters, thermal cameras, refrigerant leak detectors, and HVAC software interfaces.
• Excellent troubleshooting and problem-solving skills – able to diagnose complex faults involving mechanical, electrical, and refrigerant circuits simultaneously.

KEY RESPONSIBILITIES

Installation & Commissioning:

• Oversee or perform installation of new centrifugal chillers and VRF systems in accordance with engineering drawings and manufacturer specifications.
• Support commissioning activities including pressure testing, evacuation, charging, and system balancing.

Maintenance:

• Perform routine inspections (daily, weekly, monthly) of chillers, VRF outdoor/indoor units, compressors, condensers, evaporators, cooling towers, pumps, and AHUs.
• Execute preventive maintenance schedules: cleaning coils, changing filters, checking refrigerant levels, lubricating moving parts, inspecting electrical connections, and verifying control sequences.
• Carry out corrective maintenance to quickly restore failed equipment and reduce operational downtime.

Repair & Replacement:

• Diagnose and repair/replace faulty compressors (scroll, screw, centrifugal), pumps, motors, starters, contactors, capacitors, fans, belts, bearings, valves (solenoid, thermal expansion, shut-off), and control components (sensors, thermostats, PLC modules).
• Recover, recycle, and recharge refrigerants (e.g., R-134a, R-410A, R-32) following environmental and safety regulations.

Documentation & Reporting:

• Maintain accurate logs of all maintenance, repairs, refrigerant usage, and parts inventory.
• Prepare daily and weekly service reports for supervisor review.
• Report major faults, safety incidents, or recurring issues with recommendations for long-term solutions.

Safety & Compliance:

• Strictly follow Oil & Gas site safety protocols (e.g., PTW – Permit to Work, LOTO – Lockout/Tagout, H2S awareness, etc.).
• Comply with local and international HVAC codes (ASHRAE, ISO, or equivalent).
• Ensure proper handling, storage, and disposal of hazardous materials (oils, refrigerants, chemicals).

English speaking is mandatory – both written and verbal, for reading technical documents, reporting, and communicating with supervisors and team members.