repair maintenance of electrical and mechanical services of various office building at probin road , lucknow road , delhi . ( sh- servicing , overhauling and amc of split-windows air conditioners and water cooler ) , comprehensive running maintenance of window type a . c unit / split type a . c unit / cassettes type a . c units of 1 . 5 t . r / 2 . 0 t . r capacity . water cooler/ ductable ac coloum etc . for twelve months ( 8 months summer+ 4 months winter ) after completion of servicing overhauling repairing etc bimonthly as required at site i/c servicing of wtac /stac/cassette type a . c units including cleaning , washing with high pressure water spray electric machine , coil cleaning with chemical , blower oiling , greasing including replacement of blower , motor , compressor , pcb , plug top , 3 core copper conductor cable , starting/running capacitor of suitable size , relay suitable for 1 . 5 , 2 tr unit , condensor fan , filter pvc , fan blades , thermostat , remote and all types of defective parts for proper functioning of equipments , condenser coil , cooling coil , charging of refrigerant gas to make the already installed w . t . /split/cassette type a . c units fully functional with genuine spares and reinstallation of the same etc . complete as required . the ac units/water cooler will be handed over to the agency on as it is where it is bases for servicing and comprehensive maintenance . the firm is advised to visit the site , before quoting the rates . all the above units were functional last year , nothing extra shall be paid for above items for making the units fully functional , testing and commissioning complete as reqd . ( note:- the contractor is required to complete the servicing & repairing of all air conditioning equipments/water coolers within a period of one month and submit the record to the department . the comprehensive maintenance shall be treated as started only after acceptance by the department that all equipment have been serviced by contractor . ) the contractor will handover all the unit in fully functinal condition on completion of the work . dismentaled material will be taken back by the contractor for which necessary rebate shall be considence while quoting the rates . ( total nos= 131 , inventory attached ) a ) summer ( 8 months ) , b ) winter ( 4 months )