1. Install, inspect, maintain, and repair air conditioner.
2. Ventilate equipment and controls making sure they operate efficiently and continuously.
3. Perform regular maintenance work on cooling units.
4. Diagnose electrical and mechanical defects and malfunctions.
5. Install, replace, or repair equipment that has been damaged.
6. Make adjustment and do calibrations of thermostatic controls.
7. Install new air-conditioning systems and equipment.
8. Clean Blowers and coils, check tensions of belts and Motors.
9. Make plans and designs of new air-conditioning systems including their installation and maintenance.
10. Inspect and maintain refrigerators and ice machines, and chilled water supply systems.
11. Carry out overhauling and servicing of refrigeration units by repairing, changing, or reworking broken parts of compressors, condensers, and vacuum pumps;
12. Inspect Freon level in refrigeration units and fix any leak observed, and charge units as required;
13. Clean and change filters on ice machines and similar equipment; inspect heating elements and change if bad.
14. Perform repairs or adjustments on piping connections, valves, couplings and fittings by riveting, bolting, welding, brazing, and soldering applying hand tools, drill press, press-to-lite torch, and acetylene torch.
15. Take away pumps and Motors, change bearings and shafts, repacks and perform reinstallations; perform adjustment on expansion valves; change, fix, and re-calibrate humidistats and thermostats, change hinges, gaskets, and hardware.
16. Provide assistance to supervisor in planning new installation and modification projects, preparation of specification, and major reconditioning and overhauling projects, applying knowledge of refrigerating systems, engineering specifications, and blueprints.
17. Order for replacement of equipment parts as required, perform repairs as ordered, and keep record of servicing on equipment.
18. Provide assistance to colleagues in the department to effectively maintain, and repair equipment, buildings, and municipal properties.
19. Carry out minor electrical maintenance work, such as repair or replacement of fixtures, including wall switches and outlets, ballast, incandescent and fluorescent tubes and bulbs, fuses, sockets, etc, by applying the right tools.
20. Carry out minor plumbing maintenance work, including change or repair of leaks in faucets and drains, trenching and laying of new lines, unclogging of drains, etc.
21. Carry out minor masonry, painting, and carpentry work.
22. Provide support after work hour if required in situations like emergency, workshop, commission meetings, and other company functions.
23. Perform related duties that may be assigned.