Chiller Technician

HUMAN-AI-Z Nexus Technology; Dubai; On-site; AED 180,000 - 300,000; Full time

Job summary

WAHA AIR in Dubai seeks a highly experienced Senior Chiller Installation and Service Technician to lead installation, commissioning, maintenance and fault diagnostics of air-cooled and water-cooled chillers in large buildings. You will independently manage projects from installation through handover, read P&IDs, interfacing with BMS, and diagnose electrical and control faults to ensure safety and uptime.

Experience with Mitsubishi Electric, Daikin, Carrier, Midea, York or Trane is highly

Qualifications

• Minimum 5–10 years of proven experience in VRF and chiller systems.
• Strong background in commissioning, troubleshooting, maintenance, and repair of VRF and chiller setups.
• Ability to read P&IDs, wiring diagrams and manufacturer manuals.

Responsibilities

• Lead installation, commissioning, start-up, testing and handover of chiller systems.
• Diagnose and repair electrical, mechanical, and control faults independently.
• Maintain high standards of safety and quality on site for critical HVAC systems.

Skills

VRF systems

Chiller systems

Troubleshooting

Electrical diagnosis

BMS interfaces

Reading P&IDs

HVAC commissioning

Client communication

Tools

Mitsubishi Electric

Daikin

Carrier

Midea

York

Trane

Job description

About the job

WAHA AIR is looking for a highly experienced Senior Chiller Installation and Service Technician to join our growing HVAC team in Dubai. We are seeking professionals with extensive field experience in the installation, commissioning, maintenance, troubleshooting, repair, and overhaul of Chiller systems. The ideal candidate must be capable of independently managing projects from installation through commissioning, diagnostics, repair, and final handover.

Key Responsibilities

Preference will be given to Indian applicants. Applicants must not currently be employed elsewhere. We are ready to start working with the right candidate immediately.

Chiller Systems

• Installation, testing, commissioning, startup, servicing, troubleshooting, repair, and overhaul of Air-Cooled and Water-Cooled Chillers.
• Strong knowledge of screw, scroll, centrifugal, and reciprocating chiller systems.
• Complete understanding of chilled water systems, condenser water systems, pumps, expansion tanks, AHUs, FCUs, cooling towers, valves, strainers, and related equipment.
• Operation and programming of chiller control panels, HMI interfaces, PLC-based control systems, and BMS integration.
• Reading and interpreting controller alarms, fault histories, operating parameters, trend logs, and diagnostic information.
• Troubleshooting electrical, mechanical, refrigeration, and control-related faults.
• Compressor replacement, compressor alignment, oil charging, and commissioning after replacement.
• Compressor oil replacement and oil analysis.
• Replacement of condenser fans, evaporator fans, EC fans, motors, bearings, pulleys, belts, and vibration isolators.
• Replacement of expansion valves, solenoid valves, pressure switches, sensors, transducers, contactors, relays, VFDs, and electrical components.
• Heat exchanger inspection and cleaning (evaporator and condenser).
• Tube cleaning and condenser coil cleaning.
• Refrigerant recovery, leak detection, evacuation, charging, and refrigerant replacement.
• Water flushing, chemical cleaning, and chilled water balancing.
• Pump troubleshooting and replacement.
• Cooling tower inspection and maintenance (where applicable).
• Calibration of pressure sensors, temperature sensors, flow switches, and safety devices.
• Functional testing of all protection and safety controls.
• Performance testing and optimization to achieve design efficiency.
• Complete preventive maintenance (PM), corrective maintenance (CM), and emergency breakdown repairs.
• Root cause analysis and permanent fault rectification.
• Preparation of service reports and technical documentation.

Required Experience

• Minimum 5–10 years of proven experience in VRF and Chiller systems.
• Extensive experience with the following HVAC brands:
  • Mitsubishi Electric
  • Daikin
  • Carrier
  • Midea
  • O General
  • York
  • Trane
• Strong experience in commissioning, troubleshooting, maintenance, and repair of both VRF and Chiller systems.
• Ability to independently diagnose and repair electrical, mechanical, refrigeration, and control system failures.
• Strong understanding of HVAC electrical wiring, control circuits, refrigerant cycles, chilled water systems, and BMS interfaces.
• Ability to read mechanical drawings, wiring diagrams, P&IDs, and manufacturer manuals.
• Experience with commercial buildings, hospitals, hotels, factories, malls, data centers, and industrial facilities.
• UAE/GCC experience is highly preferred.
• Valid UAE Driving License is an advantage.

Preferred Skills

• Expert fault-finding and diagnostic skills.
• Strong knowledge of HVAC safety procedures and commissioning standards.
• Excellent communication and teamwork abilities.
• Ability to work independently under pressure and manage multiple service calls.
• Commitment to delivering high-quality workmanship and customer satisfaction.
• Experience with emergency breakdown response and 24/7 critical HVAC systems.
• Knowledge of energy optimization, system performance tuning, and preventive maintenance planning.