• Troubleshooting, installation and repairing of screw, reciprocating, rotary and scroll refrigerant compressors. Repairing of CARRIER 30 GB, GTN, GN, GT model chiller reciprocating compressors like 06D, 06E, 06CC all models and screw compressors 05T, 06T all models. • Repairing of TRANE reciprocating compressors like CRHR400A-2HAT, CRHR400A-3HAT all models screw chiller RTAC 500, RTAA70-125 helically rotary compressors CHHN050, CHHPONIDKCON112A all models. • Operation and maintenance of air compressors and air dryer. • BMS (Operation Building Management System.) • Responsible to the operation and maintenance of HVAC system, like Absorption Chillers, Cooling Towers, Fan Coil Unit (FCU), Mini Air Handling Units (MAHU), Air Handling Units (AHU), Chilled Water Treatment system, Plumbing and Electrical system etc • Also responsible supply & installation of HVAC system like Pumps (multistage centrifugal pumps, Transfer Pump, Jockey pump, Diesel pump, Electric pump, Booster pump, etc.), Heat Exchanger Chilled water system along with horizontal & vertical piping, Fresh air Handling units(FAHU) with VAV & CAV system, Chillers, Ducts for Heating, Ventilation & Air Conditioning, Chilled Coil Unit (CCU), Piping of Fire Fighting for Riser As well as Installation of Electrical Equipments, Generator, Low Voltage Panels (LVP), Motor control center (MCC) etc.