REPAIR / MAINTENANCE OF VARIOUS CHILLER UNITS OF CENTRALISED AC PLANTS OF MAKE BLUE STAR IN NAVAL STATION, BHEEMUNIPATNAM

Amount

Supply and replacement of crankcase heater Compressor model No - JS64F .

Supply and replacement of Cooler inlet & Outlet sensors, Compressor Model No- LCWR1-90

Supply and replacement of condenser and cooler flow switches Compressor Model No- LCWR1-90

M&L for disconnecting electical/ mechanical connections and winding from compressor and including taking down the defective winding, make Bluestar Compressor model No-JS64 F shifted to work shop for dismantling winding, remove burnt out winding from stator and rewinding the stator with same gauge super enamelled copper conductor with necessary insulation materials, varnishing backing re-assembling winding complete after complete the job winding shifted to site and refixing the same in its original position and re-connecting all disconnected lines welding / copper brazing etc, in serviceable and operational condition and testing and commissioning complete all as per manufacturers instruction and as directed by Engr-in-charge. Note :- Leak test, Vacuuming and Refrigerant gas shall be measured separately under relevant items.

Supply and replacement of loading and unloading coil Model No- LCWR1-90

Supply and replacement of compressor main contactor Model No 3TF51 suitable for existing panel

Supply and tou up york Compressor C Oil Compressor model No. JS64F Make - Blue Star.

Supply and replacement of crank shaft of 90 TR central AC plant and including dismantling the crank shaft bearing etc, from the compressor replacing shaft, bearing refixing the same in its original position and re-connecting all disconnected spare etc, in serviceable and operational condition and testing and commissioning complete all as per manufacturers instruction and as directed by Engr-in-charge. Compressor model no - JS64F

Supply and replacement of pressure relief valve all as existing size and shape complete all as specified and directed.

M&L carrying out complete the rectification of compressors, condensers and evaporator system capacity of 1x 90 TR Shtil hangar Make Blue star Model LCAX1-0375-DA Make : Blue star Model involving replacement spare, testing and commsioning including compressor in all respect in serviceable and operational condition complete all as per manufacturers instruction and as directed by Engr-in-charge.

Note: (i) The rate quoted shall be deemed to be include for necessary filter, T&P, MS Nuts, MS Bolts, MS washers, gaskets, etc to put into AC Plant and Panels in serviceable condition, testing and commissioning complete all as directed by the Engr-in-charge. (ii) New spare parts required for replacing old parts shall be measured and paid separately against ‘Supply only’ under item No 10.03 to 10.10 here-in-after, labour rate quoted shall be deemed to have been inclusive of such items.

(iii) Any minor spares / parts /accessories not covered in the Schedule "A" Part but required for completion of job shall be provided by the contractor and the rate quoted shall be deemed to have been inclusive of such items. (iv) Servicing of control wiring in the system/ panel operating parameter microprocesor, motherboard communication, control card etc, is deemed to be included in the quoted rate, (v) Servicing shall be carried out through OEM /authorised Agency only and test report shall be submitted in duplicate.

Supply only Gas refill R134A

Supply only temp Sensors .

Supply only Star delta main contactors AC3 415 V Model no- 3TS49

Supply only MCB'S TP 32 amps 415 Volt AC 50 HZ.

Supply only Exv control board existing model. Compressor Model LCAX1-0375-DA

Supply only Flow switch

Supply only Display board. Compressor Model LCAX1-0375-DA

Supply only Oil filters, filter driers core.

M&L carrying out complete the rectification of compressors, condensers and evaporator system capacity of 1 x 45 TR C2 hangar Make Blue star Model: XAC2YS-048 AR Make : Blue star Model involving replacement spare, testing and commsioning Re- assembling the compressor in all respect, refixing the same in its original position and re-connecting all disconnected lines etc, in serviceable and operational condition complete all as manufacturers instruction and as directed by Engr-in-charge.

Note: (i) The rate quoted shall be deemed to be include for 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 complete all as directed by the Engr-in-charge. (ii) New spare parts required for replacing old parts shall be measured and paid separately against ‘Supply only’ under item No 11.01 to 11.09 here-in-after, labour rate quoted shall be deemed to have been inclusive of such items.

(iii) Any minor spares / parts /accessories not covered in the Schedule "A" Part but required for completion of job shall be provided by the contractor and the rate quoted shall be deemed to have been inclusive of such items. (iv) Servicing of control wiring in the system/ panel operating parameter microprocesor, motherboard communication, control card etc, is deemed to be included in the quoted rate, (v) Servicing shall be carried out through OEM /authorised Agency only and test report shall be submitted in duplicate

Supply only Temp Sensor.

Supply only Contactor 40amp Model no -NC1-4011

Supply only power contactor 3 pole AC3 415 V Model No- MNX 32.

Supply only MCB 3 Pole 50Amps 415 Volts.

Supply only Contactor AC3 415 V Model No- MNX 9.

Supply only Contactor 10 amps 3 pole 415 V Model no -3TS30.

supply only Gas R 407 C.

Supply only Electronic Timer 3-30 sec 415 V50 HZ.

Supply only Expansion valve. Compressor Model: XAC2YS-048 AR.

M&L carrying out complete the rectification of compressors, condensers and evaporator system capacity of 1 x 25 TR 300 LT MAGAZINE NAD Make: Blue Star Model : XWC3S-039 AR involving replacement spare, testing and commissioning, re- assembling the compressor in all respect, refixing the same in its original position and re-connecting all disconnected lines etc, in serviceable and operational condition complete all as per manufacturers instruction and as directed by Engr-in-charge.

Note: (i) The rate quoted shall be deemed to be include for necessary, T&P, MS Nuts, MS Bolts, MS washers, gaskets, etc to put into AC Plant and Panels in serviceable condition, testing and commissioning complete all as directed by the Engr-in-charge. (ii) New spare parts required for replacing old parts shall be measured and paid separately against ‘Supply only’ under item No 12.03 to 12.10 here-in-after, labour rate quoted shall be deemed to have been inclusive of such items.

(iii) Any minor spares/parts /accessories not covered in the Schedule "A" Part but required for completion of job shall be provided by the contractor and the rate quoted shall be deemed to have been inclusive of such items. (iv) Servicing of control wiring in the system/ panel operating parameter microprocessor, motherboard communication, control card etc, is deemed to be included in the quoted rate. (v) Servicing shall be carried out through OEM /authorised Agency only and test report shall be submitted in duplicate.

Supply only Expansion valve existing model. Model : XWC3S-039 AR.

Supply only Gas R 407 C.

Supply only Flow switch

Supply only power contactor 3 pole 415 V Model No- MNX 12.

Supply only Contactor 40 amp Model no -NC1-5011 .

Supply only Auxiallry Contactor MNX-A2

Supply only MCB Capacity 20 amps 3 pole 415 V

Supply only MCCB Capacity 100 amps 3 pole 415 V 50 HZ.

M&L carrying out complete the rectification of compressors, condensers and evaporator system capacity of 1x 34 P 86 hangars Make Blue Star Model : XAC 3S-036 involving replacement of spare, testing and commisioning complete all as per manufacturers instruction and as directed by Engr-in-charge.

Note: (i) The rate quoted shall be deemed to be include for necessary, T&P, MS Nuts, MS Bolts, MS washers, gaskets, etc to put into AC Plant and Panels in serviceable condition, testing and commissioning complete all as directed by the Engr-in-charge. (ii) New spare parts required for replacing old parts shall be measured and paid separately against ‘Supply only’ under item No 13.03 to 13.09 here-in-after, labour rate quoted shall be deemed to have been inclusive of such items.

(iii) Any minor spares / parts /accessories not covered in the Schedule "A" Part but required for completion of job shall be provided by the contractor and the rate quoted shall be deemed to have been inclusive of such items. (iv) Servicing of control wiring in the system/ panel operating parameter microprocesor, motherboard communication, control card etc, is deemed to be included in the quoted rate. (v) Servicing shall be carried out through OEM /authorised Agency only and test report shall be submitted in duplicate.

Supply only Temp Sensoner

Supply only MCCB 63 Amps 3 pole 10 KA.

Supply only contactor Model No - MNX-A2(No NC)

Supply only Auxiliary Contact Model No - MNX 9

Supply only Gas R 134a

Supply only MCB 3 pole 20 amps

Supply only Drier core filter

Material and labour for carrying out complete the rectification of compressors, condensers and evaporator system capacity of 1x 34 P - 240 AWS Make Blue Star Model : XWC3S-039 AR involving replacement of spare, testing and commisioning complete all as specified and directed by Engr-in-charge.

Note: (i) The rate quoted shall be deemed to include for necessary 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 complete all as directed by the Engr-in-charge. (ii) New spare parts required for replacing old parts shall be measured and paid separately against ‘Supply only’ under item No 14.03 to 14.09 here-in-after, labour rate quoted shall be deemed to have been inclusive of such items.

(iii) Any minor spares / parts /accessories not covered in the Schedule "A" Part but required for completion of job shall be provided by the contractor and the rate quoted shall be deemed to have been inclusive of such items. (iv) Servicing of control wiring in the system/ panel operating parameter microprocesor, motherboard communication, control card etc, is deemed to be included in the quoted rate. (v) Servicing shall be carried out through OEM /authorised Agency only and test report shall be submitted in duplicate with following items as given below complete all as directed by Engr-in-charge.

Supply only Contactor 40amp Model no -NC1-5011 Make- CHINT

Supply only Sensoner

Supply only MCCB 63 Amps 3 pole 415 V Make L&T.

Supply only MCB 3 Pole of 32 Amps 415 V Make L&T.

Supply only Aux Contact Model No - MNX 9 Make L&T.

Supply only Gas R 407

Supply only Drier core filter

M&L carrying out complete the rectification of compressors, condensers and evaporator system capacity of 1 x 34 P 84 hangers Make: Blue Star Model: XAC 3S-036 AR involving replacement of spare, testing and commisioning complete all as specified and directed by Engr-in-charge.

Note: (i) The rate quoted shall be deemed to be include for necessary T&P, MS Nuts, MS Bolts, MS washers, gaskets, drier core filter etc, to put into AC Plant and Panels in serviceable condition. (ii) New spare parts required for replacing old parts shall be measured and paid separately against ‘Supply only’ under item No 15.03 to 15.09 here-in-after, labour rate quoted shall be deemed to have been inclusive of such items.

(iii) Any minor spares / parts /accessories not covered in the Schedule "A" Part but required for completion of job shall be provided by the contractor and the rate quoted shall be deemed to have been inclusive of such items. (iv) Servicing of control wiring in the system/ panel operating parameter microprocesor, motherboard communication, control card etc, is deemed to be included in the quoted rate. (v) Servicing shall be carried out through OEM /authorised Agency only and test report shall be submitted in duplicate.

Supply only filter driers

Supply only Temp Sensoner.

Supply only MCCB 63 Amps 3 pole.

Supply only MCB 3 Pole of 32 Amps,

Supply only Aux Contact MNX 9

Supply only Electronic Timer 3-30 sec 415 V50 HZ.

Supply only contactor MNX-A2(No NC)

Supply only Gas R 134a

Supply and replacement of 80 mm dia butterfly valves, wafer type and including bolts, nuts, washers and rubber gaskets complete all as specified and directed.

All as per Sl. Item No. 16 above but 100 mm dia

All as per Sl. Item No. 16 above but 125 mm dia

Supply and replacement of panel board indication lamp (R/Y/B/G colour from the panel) complete all as specified and directed.

M&L carrying out the leak test for the chiller any type system by extracting the existing available gas from the system to seperate cylinder storing and pressurizing the complete system with dry nitrogen and check the leak rectification of leaks by brazzing /welding at the leak points /replacing by damaged valve gland package/gasket etc, and after rectification of all leak pressure testing complete system after releasing the dry nitrogen and charging the refrigerent gas to system and testing and commissioning the plant checking all control for the following complete all as specified and directed by Engr-in-charge :-

Note:- (i) Once the gas charged in it, it should hold in the system to minimum six month and in case of any leakage from the system the contractor has to charge the gas upto required level on free of cost and no exra cost on this accont shall be claimed. (ii) Refrigerent gas shall be measured and paid seperately under relevent item as supply only.

35 TR Capacity

45 TR Capacity

90 TR Capacity

Carrying out attending to break down of Central type AC plant of any capacity only auth OEM (M/S Bluestar) rep / team for fault finding attending repairs as and when required such as no start condition of AC plant and repairing, starting, the operating parameter of the chillers checking any vibration, functioning microprocessor, flow swich calibration, HP/LP cut out switch, oil pump and oil heater the AC plant till smooth running and setting up the alignment, required parameter of all major/minor parts such as compressor microprocessor based central AC plant, general repair smooth and trouble free operation of plant to the entire satisfaction of user /dep. Attending break down inspection service report duly mentioning the date of inspection signature of service engineer and Engineer -in- charge documents shall be submitted for claming payment, as required in ground as ordered by Engr-in-charge.

M&L carrying out the descaling of the shell & Tube condensers by isolation of each condenser by providing of dummy plate for inlet & outlet connection and 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 depend 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 and pressure testing apply grease to all M.S. Bolts & Nuts and put the condensers of the following capacities in operational complete all as specified and directed :-

35 TR Capacity

90 TR Capacity

Supply and replacement of pressure gauge (0-5 kg/sqcm) chiller/condenser water line complete all as specified and directed.

Supply and replacement of thermometer of range 0 to 100°F for condenser/ Chiller inlet/ outlet pipe complete all as specified and directed.

Supply and replacement of Single Phase Preventor, 415 Volts, Type VSP-3 Auto Reset, complete all as specified and directed.

Supply and charging refrigerent Gas R22 complete all as specified and directed.

Supply and charging refrigerent Gas R 407 complete all as specified and directed.

M&L carrying out the chemical servicing of the Air cooled condensers & cooling coils by applying the non-aciditic scale removing agent to the fins area of the cooling coil, copper tubes, remove the complete scale deposit across the coil, flushing through and complete blowing out the dirt, cleaning the fan impellers, filter section, fan section, and complete cleaning filters, tightening of all bolts & nuts, renew the rusted bolts & nuts checking the alignment of the drive set and testing & commissioning the Air cooled condenser of AC Plant up to 90 TR complete all as specified and directed.

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