tender for annual repair & maintenance of various electrical and mechanical services installed at guru gobind singh govt. hospital, raghubir nagar, new delhi (sh repairing of blue star make inverter ducted air conditioning system at ggsg hospital) - 1 repairing of existing 5.5 tr circuits of blue star make inverter ducted air conditioning system unit i/c pressure testing of the system with nitrogen gas, removing the leakage etc. complete as reqd. 2 repairing of existing 8.0 tr circuits of blue star make inverter ducted air conditioning system unit i/c pressure testing of the system with nitrogen gas, removing the leakage etc. complete as reqd. 3 gas charging of existing 5.5 tr circuit of blue star make inverter ducted air conditioning system unit i/c vacuumizing and charging r-410 a refrigerant gascomplete as reqd. 4 gas charging of existing 8.0 tr circuit of blue star make inverter ducted air conditioning system unit i/c vacuumizing and charging r-410 a refrigerant gascomplete as reqd. 5 servicing of the existing 38 tr blue star make inverter ducted air conditioning system units with suitable chemical i/c indoor unit and outdoor unit, condensing and cooling coils, blowers etc. as reqd. 6 repairing of existing 38 tr blue star make inverter ducted air conditioning system units i/c replacement of the faulty/worn out parts as below 7 odu motor of 8.0 tr 8 drive for compressor 9 idu card 10 preventor 11 remote