bids are invited for as per appdx ser no 1 total quantity : 1- maintenance and replacement of spares of precision ac of cap 6.5 x 3 tr make: swigon bluebox installed at icr lab ( bbj hanger ) at tech area -- ( a ) servicing of precision ac capacity 6.5 tr including oiling greasing of fan motor cleaning and washing of synthetic filter , cleaning of condenser coil and cooling coil with chemical and washing with water & checking of electric circuit for smooth functioning -3. complete one job ( b ) replacement of compressor 6.5 tr capacity make swigon bluebox. each -1. ( c ) disconnection & taking out existing unserviceable pcb with sensor from precision ac capacity 6.5 tr and taking to repair for repairing and fixing to its original position and connection complete all as specified and directed by engr-incharge. each -1 ( d ) replacement of expansion valve make: daikin. sporlon -2. ( e ) supply and charging the refrigerant gas r –410 make: mefron. kg -20.