Operation and maintenance of Electromechanical services at Telephone Bhawan, Cuttack (for the financial year 2026-27).(SH- Through servicing, fault attaending and Repairing of 7 no 7TR HPAC unit at MSC Switch Room of Telephone Bhawan,Cuttack not cove

Attending the break down call i/c inspection the Precision Package AC units ,testing the units ,detecting the fault & assessing the list of materials for repairing the units i/c rectification of minor faults ( i.e. without materials ) and restoration of PAC unit etc as reqd.

Thorough general servicing, checking, cleaning of evaporator filter /cooling coil and condenser coil of precision PAC units with recommended cleaning liquid and finally cleaning with water, drying etc. i/c re-fixing of cooling coil filters in the existing place etc complete as required.

Supplying & fixing of Condenser Fan motor axial fan with Blade suitable for Uniflair/Schneider make HPAC units, 1350-1380 RPM, suitable for operation on 225-250 watt, 230Volt, 50 Hz AC supply with class F insulation i/c connection and testing etc. as required. ( Make -EBM PAPST, model: S4E450AQ5/REX model-RX4E-450S/High cool )

Thorough leak testing of cooling coil, condenser coil and pipe line by Nitrogen gas and brazing/ gas welding i/c vacuumization the refrigerant circuit complete as required.

Supplying and charging / top up of refrigerant gas (R-22) /R -407C/R410A) to the units complete etc. as required.

Replacement of safety valve by new one i/c fixing and testing etc, as required.

Replacement of Liquid line Filter Drier by new one i/c fixing and testing etc, as required. (Make- Danfos, Model-DCL 165 (5/8'/ Equivalent)