bids are invited for comprehensive annual maintenance services for precision air conditioners - providing comprehensive maintenance of 3 no high precision ac units of 7 tr capacity including periodical overhauling and replacement of spares such as lp, hp, spp, thermostat etc. and replacement compressor under buyback system, rectification of electrical panel, wiring, meters, replacement/repair of pac controllers and display, blower motor, condenser fan motors etc in case of fault. topping up of consumables like refrigerant gas, monthly servicing of pac units and generating service report, attending breakdown emergency calls immediately and generating service report and obtaining the acknowledgements from the building/engineer in charge etc, as per the detailed specification as required (2 o m/s uniflair make and 1no m/s stulz make)