short dated tender - bids are invited for cleaning and servicing of 4 tr tower type air conditioner including cleaning of filters blower coils drain line electrical checks testing and commissioning complete as per oem specifications , providing and filling of compatible r22 or r32 refrigerant gas for 1 point 5 tr split air conditioner including leak testing and making unit functional complete , nitrogen pressure testing of vrv air conditioning system for leak detection including nitrogen charging pressure holding joint leak testing complete as per oem specifications , providing and filling of r 410a gas in main vrv unit as per direction and upto satisfaction of engr in charge , supply installation testing and commissioning of printed circuit board for vrv indoor unit including replacement wiring testing and making system functional complete as per oem specifications , supply installation testing and commissioning of outdoor inverter printed circuit board for vrv outdoor unit including replacement wiring testing complete as per oem specification , dismantling damaged wiring and providing laying testing and commissioning of new 2 core 2 point 5 sqmm copper cable for vrv vrf system complete with termination and testing as per specifications , repairing of indoor printed circuit board for vrv indoor unit including fault diagnosis component replacement servicing testing and making unit functional complete as per oem specifications , providing and replacement of indoor fan motor assembly for vrv indoor unit including dismantling installation wiring testing and making unit functional complete as per oem specifications