REPAIRS/MAINTENANCE OF VARIOUS CHILLER UNITS OF CENTRALISED AC PLANTS OF MAKE VOLTAS IN NAVAL STATION, BHEEMUNIPATNAM

Amount

M&L carrying out the rectification of compressors, condensers and evapator system of capacity of 3 x 25 TR AC plant and panels Model WCUR0400MN Make : Voltas P-145 D NAD and including panel recommissioning, re-assembling the compressor, refixing the same in its original position and re -connecting all disconnected lines, leak test, pressure, nitrogen test, vacuuming etc, in serviceable and operational condation and taking down the defective reciprocating open type compressor from the central type AC plant complete all as per manufactureres instruction and as directed by Eng-in- charge.

Notes: (i) The quoted rate shall be deemed to be include for the following:- (a) Necessary filter, T&P, MS nuts, MS bolts, MS washers, gaskets, drier core filter, oil filter, Synthetic oil etc, to put into AC Plant and panels in serviceable condition, testing and commissioning. (b) Labour charges for replacement of unserviceable parts / accessories. c) Any minor spares / parts / accessories not covered in the BOQ but required for completion of job. (d) Renewal of control wiring in the system / panel display.

(ii) Servicing shall be carried out through OEM / authorised agency only and necessary test/Service reports in duplicate shall be submitted duly signed by the OEM, contractor & Eng-in-charge.

Compressor overhauling and including spares and Compressor motor rewinding charges complete Unit Model : WCUR0400MNT.

Supply only chiller PLC Controller, MVPD, Star delta timer, Pressure transmiter, oil sensor. Unit Model : WCUR0400MNT.

Supply only MVPD, 5H40 model Compressor, Pressure transmitter, Oil sensor. Unit Model : WCUR0400MNT.

Supply only MVPD, Pressure transmitters and condenser water pressure switch. Unit Model : WCUR0400MNT.

Supply only Presure transduser,

Supply only Compressor oil

Supply only refrigerants gas R-22

Supply only shaft seal assembly

Servicing suction and discharge valve of compresor and including replacement of teflon sheet washer and neoprene ring etc, complete

M&L carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 15 TR AC plant and panel Make : Voltas AWS NAD and including panel recommissioning, re- assembling the compressor, refixing the same in its original position and re-connecting all disconnected lines, leak test, pressure, nitrogen test, vacuuming etc, in serviceable and operational condition and taking down the defective compressor from the central type AC plant complete all as per manufactureres instruction and as directed by Engr-in- charge.

Notes: (i) The quoted rate shall be deemed to be include for the following:- (a) Necessary filter, T&P, MS nuts, MS bolts, MS washers, gaskets, drier core filter, oil filter, Synthetic oil etc, to put into AC Plant and panels in serviceable condition, testing and commissioning. (b) Labour charges for replacement of unserviceable parts / accessories. c) Any minor spares / parts / accessories not covered in the BOQ but required for completion of job. (d) Renewal of control wiring in the system / panel display.

(ii) Servicing shall be carried out through OEM / authorised agency only and necessary test / service reports in duplicate shall be submitted duly signed by the OEM, contractor & Eng-in-charge.

Supply only package Unit display Unit Model : DPUWSC55

Supply only MPD, PMN and controller. Unit Model : APUWSC55.

Supply only refrigerants gas R-22

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 35 TR AC Plant Make: Voltas P 206 NAD and including panel recommissioning, re- assembling the compressor, refixing the same in its original position and re-connecting all disconnected lines, leak test, pressure, nitrogen test, vacuuming etc, in serviceable and operational condation and taking down the scroll type compressor from the central type air conditioning AC plant complete all as per manufactureres instruction and as directed by Eng-in- charge.

Notes: (i) The quoted rate shall be deemed to be include for the following:- (a) Necessary filter, T&P, MS nuts, MS bolts, MS washers, gaskets, drier core filter, oil filter, Synthetic oil etc, to put into AC Plant and panels in serviceable condition, testing and commissioning. (b) Labour charges for replacement of unserviceable parts / accessories. c) Any minor spares / parts / accessories not covered in the BOQ but required for completion of job. (d) Renewal of control wiring in the system / panel display

(ii) Servicing shall be carried out through OEM / authorised agency only and necessary test/service reports in duplicate shall be submitted duly signed by the OEM, contractor & Eng-in-charge.

Supply only compressor Model : SM18534RC and including copper brazing .

Supply only condenser unit as per specific requirement sutaible for existing water cooled chiller pacage Model ACWCDS024DMN New Evaporator model: AC170400000CI.

Supply only of DX Evaporator assembly wih enhanced feature as per the reqirment sutaible for the existing water cooled chiller package to new Evaporator, re-commissioning the unit and including refrigerant and existing chiller package model : ACWCDS024DMN New Evaporator model: AC177000000C.

Supply expansion valve existing model .

Supply only refrigerants gas R-22

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 30 TR. Make : Voltas IN HANGER 9 and including panel recommissioning, re- assembling the compressor, refixing the same in its original position and re connecting all disconnected lines, leak test, pressure, nitrogen test, vacuuming etc, in serviceable and operational condation and taking down the defective reciprocating open type compressor from the central type air conditioning AC plant complete all as per manufactureres instruction and as directed by Eng-in- charge.

Notes: (i) The quoted rate shall be deemed to be include for the following:- (a) Necessary filter, T&P, MS nuts, MS bolts, MS washers, gaskets, drier core filter, oil filter, Synthetic oil etc, to put into AC Plant and panels in serviceable condition, testing and commissioning. (b) Labour charges for replacement of unserviceable parts / accessories. c) Any minor spares / parts / accessories not covered in the BOQ but required for completion of job. (d) Renewal of control wiring in the system / panel display.

(ii) Servicing shall be carried out through OEM / authorised agency only and necessary test/ Service reports in duplicate shall be submitted duly signed by the OEM, contractor & Eng-in-charge.

Supply only compressor oil

Supply only refrigerants gas R-22

Supply only panel display Model : WCUR0400MNT.

Compressor overhauling and including spares and compressor motor rewinding charges complete Unit Model : WCUR0400MNT.

Supply only presure transduser

Supply only shaft seal assembly

Servicing sunction and discharge valve of compressor and including replacement of teflon sheet washer and neoprene ring etc, complete.

Supply only expansion valve of existing model

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 39 TR, Make: Voltas Model no WCUR0400MNT in MARCOS and including panel recommissioning, re- assembling the compressor, refixing the same in its original position and re-connecting all disconnected lines, leak test, pressure, nitrogen test, vacuuming etc, in serviceable and operational condation and taking down the defective scroll type compressor from the central type AC plant complete all as per manufactureres instruction and as directed by Eng-in- charge.

Notes: (i) The quoted rate shall be deemed to be include for the following:- (a) Necessary filter, T&P, MS nuts, MS bolts, MS washers, gaskets, drier core filter, oil filter, Synthetic oil etc, to put into AC Plant and panels in serviceable condition, testing and commissioning. (b) Labour charges for replacement of unserviceable parts / accessories. c) Any minor spares / parts / accessories not covered in the BOQ but required for completion of job. (d) Renewal of control wiring in the system / panel display.

(ii) Servicing shall be carried out through OEM / authorised agency only and necessary test / service reports in duplicate shall be submitted duly signed by the OEM, contractor & Eng-in-charge.

Commissioning the system Model : WCUR0400MNT

Compressor Model : SM18554RC and MPD incl copper brazining. Model : WCUR0400MNT

Transformer, MPD supply 230 VAC. Model : WCUR0400MNT

Supply only condenser unit as per specific requirement sutaible for existing water cooled chiller pacage existing chiller package model WCDS039DRMN3X1 Condenser Model AC17240006PC.

Supply only DX Evaporator assembly with enhanced feature as per the reqirment sutaible for the existing water cooled chiller package to new Evaporator, re-commissioning the unit and including R 407 C Refrigerant and MPD. Existing chiller package model WCDS039DRMN3X1 New evaporator Model AC177600000T9UOSB.

Expansion valve existing model.

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 50 TR, Hanger 11 Make : Voltas and including panel recommissioning, re- assembling the compressor, refixing the same in its original position and re-connecting all disconnected lines, leak test, pressure, nitrogen test, vacuuming etc, in serviceable and operational condation and taking down the defective compressor from the central type AC plant complete all as per manufactureres instruction and as directed by Eng-in- charge.

Notes: (i) The quoted rate shall be deemed to be include for the following:- (a) Necessary filter, T&P, MS nuts, MS bolts, MS washers, gaskets, drier core filter, oil filter, Synthetic oil etc, to put into AC Plant and panels in serviceable condition, testing and commissioning. (b) Labour charges for replacement of unserviceable parts / accessories. c) Any minor spares / parts / accessories not covered in the BOQ but required for completion of job. (d) Renewal of control wiring in the system / panel display.

(ii) Servicing shall be carried out through OEM / authorised agency only and necessary test / service reports in duplicate shall be submit Eng-in-charge.

Supply only HP pressure switch

Supply only Contactor Set for 3 pole contactor AC3 , 32A amps as existing.

Supply only MVPD & temperature sensor.

Supply only refrigerants gas R-22

Supply only MCCB 4 pole, 35 KA 100 Amp from the existing panel, adjustable type.

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 50 TR, Make: Voltas Model no WCDS048DMN2x2 in Hanger 10 and including panel recommissioning, re- assembling the compressor, refixing the same in its original position, re-connecting all disconnected lines, leak test, pressure, nitrogen test, vacuuming etc, in serviceable and operational condation and taking down the defective scroll type compressor from the central type AC plant complete all as per manufactureres instruction and as directed by Eng-in- charge.

Notes: (i) The quoted rate shall be deemed to be include for the following:- (a) Necessary filter, T&P, MS nuts, MS bolts, MS washers, gaskets, drier core filter etc, to put into AC Plant and panels in serviceable condition, testing and commissioning. (b) Labour charges for replacement of unserviceable parts / accessories. c) Any minor spares / parts / accessories not covered in the BOQ but required for completion of job. (d) Renewal of control wiring in the system / panel

(ii) Servicing shall be carried out through OEM / authorised agency only and necessary test / service reports in duplicate shall be submitted duly signed by the OEM, contractor & Eng-in-charge.

Supply only expansion valve suitable for existing model.

Supply only electrical panel controller. Model : WCDS048DMN2X2

Supply and replace pressure / temperature gauge.

M&L for rectification of compressors, condensers and evapator system capacity of 3 x 60 Make: Voltas TR, Model : WCDR060RMN Hanger 21 and including panel recommissioning, re-assembling the compressor, refixing the same in its original position, re-connecting all disconnected lines, leak test, pressure, nitrogen test, vacuuming etc, in serviceable and operational condation and taking down the defective reciprocating open type compressor from the central type AC plant complete all as per manufactureres instruction and as directed by Eng-in- charge.

Notes: (i) The quoted rate shall be deemed to be include for the following:- (a) Necessary filter, T&P, MS nuts, MS bolts, MS washers, gaskets, drier core filter, oil filter, Synthetic oil etc, to put into AC Plant and panels in serviceable condition, testing and commissioning. (b) Labour charges for replacement of unserviceable parts / accessories. c) Any minor spares / parts / accessories not covered in the BOQ but required for completion of job. (d) Renewal of control wiring in the system / panel display.

(ii) Servicing shall be carried out through OEM / authorised agency only and necessary test / service reports in duplicate shall be submitted duly signed by the OEM, contractor & Eng-in-charge.

Supply only electrical panel controller.

Supply only refrigerants gas R-22

Power contactor set for 3 pole contactor AC3, 25 Amps MNX 25 as per existing panel

Note for Sl. item Nos. 1 to 8: (i) Spare parts shall be measured and paid under Sl. item nos. 1 to 8 as carried out. But once the AC plant made serviceable and after wards if any defect arrises in the repaired central type AC plant, the contractor should repair / rectify the same without claiming any additional cost .

(ii) In case any delay in the rectification of defects is more than 24 hours for minor defects and more than 48 hours for major defects, the contractor to pay the department penaly of Rs. 5,000/- for minor defects and Rs. 10,000/- for major defects towards inconvenience caused to the users.

M&L for carrying out the descaling of the shell & tube condensers by isolation of each condenser by providing of dummy plate for inlet & outlet connection and including separation of condenser from water circulation without disturbing the operation of the AC plant, carrying out the descaling by circulation of the diluted scale removing agent organic compound type chemical of RA III / chemtex brand at the appropriate ratio depends upon as recommended by manufacturer and the scale deposit inside copper tube by forced circulation and opening the end covers, mechanical brushing the copper tubes with nylon brushes of various size to remove complete scale, de-greasing with caustic soda solution and flushing out with fresh water, refixing all disconnected pipes lines, end covers with new rubber gasket and opening water line valves and checking of water leakages, apply grease to all MS bolts & nuts and put the condensers of the following capacities in operational complete all as specified and directed:-

15 TR Capacity

20 TR Capacity

25 TR Capacity

30 TR Capacity

39 TR Capacity

50 TR Capacity

60 TR Capacity

SRIVALLI ENGINEERS

LAKSHMI SAI CONSTRUCTIONS

SRI SIDDHI VINAYAKA ENTERPRISES

P VENKATA RAO

ANAND ENTERPRISES AND ENGINEERS

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GS ENGINEERS