Job Purpose
Responsible for the inspection, servicing, troubleshooting, and repair of water-cooled chillers (York & Carrier), AHU, & FCU. This includes replacing compressors, motors, VFDs, sensors, pumps, valves, and associated mechanical/electrical systems to ensure reliable and efficient operation of the chiller.
Principal Accountabilities
Preventive Maintenance:
· Perform routine preventive maintenance on chillers, including oil changes, filter replacement, condenser/evaporator cleaning, and
alignment checks.
· Troubleshoot and repair mechanical and electrical faults in chiller systems.
· Maintain associated systems such as primary & secondary pumps, motors, piping, and valves.
· Inspect refrigerant charge, detect leaks, and conduct recovery, recycling, and recharging
· Monitor & adjust operating parameters (pressures, oil levels, water flows, change in pressure & temperatures).
Corrective Maintenance:
· Conduct full compressor replacements, including removal, installation, and alignment.
· Overhaul compressors including inspection & replacing of bearings, & seals.
· Testing & replacing sensors & related valves.
· Diagnose and repair alternators, drives, VFDs, and motor control centers.
· Perform calibration and troubleshooting of control panels, BMS, and electronic expansion valves.
· Carry out vibration analysis, oil analysis, and monitoring.
· Inspect and maintain expansion valves, solenoid valves, oil return systems, and safety devices.
· Conduct testing and balancing of chilled water flow.
· System Monitoring & Compliance
· Record all maintenance activities, operational readings, and repairs
· Respond promptly to emergency breakdowns and restore chiller functionality with minimal downtime
Required Qualifications
Diploma or Technical Certificate in Mechanical, Electrical, or HVAC Engineering.
Minimum 3–5 years of experience in chiller operation and maintenance (centrifugal, screw, or reciprocating type).
Strong knowledge of HVAC systems, controls, and refrigerant handling procedures.
Familiarity with BMS, VFDs, and electrical troubleshooting.
Certified in Refrigerant Recovery and Handling (EPA or equivalent) – preferred.
Ability to read and interpret technical drawings and wiring diagrams.
Good communication and documentation skills.
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