Marine HVAC Technician / Marine AC & Refrigeration Technician

Job Description Marine HVAC Technician
Position: Marine HVAC Technician / Marine AC & Refrigeration Technician
Industry: Marine / Shipyard / Offshore / Vessel Maintenance
Job Summary: Responsible for installation, preventive maintenance, troubleshooting, repair,
testing, and commissioning of HVAC and refrigeration systems installed on ships, vessels, offshore
facilities, and other marine environments. Key Responsibilities
Install, maintain, troubleshoot, and repair marine HVAC and refrigeration systems.
Work on AHU, FCU, chillers, split/package AC, ventilation/exhaust fans, compressors,
condensers, evaporators, pumps, cooling towers, and refrigeration units.
Diagnose cooling, airflow, electrical, mechanical, and refrigerant-related faults.
Perform refrigerant charging/recovery, leak detection, vacuuming, pressure testing, and system
performance checks.
Maintain and replace compressors, motors, bearings, belts, filters, valves, thermostats, sensors,
and controls.
Install and repair ducting, chilled-water piping, copper refrigerant piping, insulation, and
ventilation systems.
Read HVAC drawings, P&IDs, equipment manuals, electrical diagrams, and technical
specifications.
Carry out preventive and corrective maintenance according to maintenance schedules.
Test temperature, pressure, airflow, superheat/subcooling, voltage, current, and equipment
operating parameters.
Maintain HVAC systems for cabins, accommodation areas, engine/control rooms, galley, cold
rooms, freezer rooms, and other vessel spaces.
Complete maintenance reports and follow shipyard/marine safety procedures, permit-to-work
requirements, and PPE rules.
Required Skills & Knowledge
Technical Skills: HVAC troubleshooting; marine air-conditioning; refrigeration systems; compressor
servicing; chiller maintenance; AHU/FCU servicing; cold-room/freezer maintenance; refrigerant
charging and recovery; brazing and copper piping; leak testing; vacuuming; ducting and ventilation;
chilled-water systems; electrical troubleshooting; motor/pump servicing; control-panel
troubleshooting; and use of manifold gauges, vacuum pumps, multimeters, clamp meters,
temperature/pressure instruments, and leak detectors.
Knowledge: Good understanding of the refrigeration cycle, heat transfer, pressure-temperature
relationship, airflow and ventilation, electrical circuits, HVAC controls, thermostats/sensors,
refrigerants, compressors, condensers, evaporators, expansion valves, pumps, motors, valves,
chilled-water systems, and marine HVAC safety procedures.
Preferred Candidate: ITI/Diploma in Refrigeration & Air Conditioning, HVAC, Mechanical, Electrical,
or equivalent technical qualification, with practical ship/shipyard/offshore HVAC
experience preferred. Ability to work in confined spaces, at heights, and in demanding marine
environments is important.