bids are invited for custom bid for services - as per nit annual maintenance service for centralised air conditioning system comprehensive annual maintenance services for precision air conditioners replacement of running capacitor window /split ac having capacity 2t 27 24 hrs 2 905410513 replacement of condenser coil window /split ac having capacity 2t 6 72 hrs 3 904510514 replacement of starting relay window /split ac having capacity 2t 13 24 hrs 4 905410515 replacement of starting capacitor window /split ac having capacity 2t 30 24 hrs 5 905410516 rewinding of motor window ac having capacity 2t 8 72 hrs 6 905410517 rewinding of outdoor unit motor split ac