Day to day fault attending, Repair and Maintenance of 7 TR High Precision AC units under Berhampur BA

Amount

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 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 & 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 )

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

Supplying & fixing of the following items in place of defective one for commissioning of HPAC etc complete as reqd.( Make - Existing make of spare as available in the HPAC )

32 Amp, 415 volts 3 pole AC3 duty Contactor with 1NO+1NC (Make- Schneider, model- LC1D32, Coil voltage-220/24V AC OR Equivalent. )

25 Amp, 415 volts 3 pole AC3 duty Contactor with 1NO+1NC (Make- Schneider, model- LC1D25, Coil voltage-220/24V AC OR Equivalent)

18 Amp, 415 volts 3 pole AC3 duty Contactor with 1NO+1NC (Make- Schneider, model- LC1D18, Coil voltage-220/24V AC OR Equivalent)

9 Amp, 415 volts 3 pole AC3 duty Contactor with 1NO+1NC (Make- Schneider, model- LC1D09, Coil voltage-220/24V AC OR Equivalent)

Add on Contact block with 1 NO+ 1 NC / 2 NO suitable for 9/16/25/32A 3pole contactor. (Make- Schneider/Equivalent)

32/16A/6 Amp 10KA 3pole MCB (Legrand/Schneider/ABB)

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)

Replacement of High-Pressure Release Switch by new one i/c fixing, connection and testing etc. as required. (Make: Danfoss-KP1 OR Equivalent: Auto Reset)

Replacement of Low-Pressure Release Switch by new one i/c fixing, connection and testing etc. as required. (Make: Danfoss-KP5 OR Equivalent: Manual Reset)

Supply and fixing of Electronic Expansion Valve (EEV) for 7TR High precision AC units made of brass and copper materials,5/8" -7/8"size suitable for Uniflair/Schnieder and Sidwal made HPAC units etc. complete as required. (Make: CAREL, Model: E3V45 AWR00 or equivalent model of repute)

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.

Repairing of the existing repairable faulty Condenser fan motors i/c replacement of bearings / bush with lathe works, refitting, testing etc. as required.

RAY ELECTRICALS