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

Amount

M&L carrying out the rectification of compressors, condensers and evapator system of capacity of 3 x 90 TR TSS hangers Make : Blue star Model: LCWR1-90 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 reciprocating open type 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 crankcase heater

Supply only expansion valve

Supply only cooler inlet & out let sensors

Supply only condenser and cooler flow switches

Supply only pressure gauge

Compressor rewinding and including overhauling with neccessary spares complete.

Loading and unloading coil

Supply only compressor main contactor

Supply only Oil BSL 'C' Oil 5 Gal

Supply only refrigerent R22

Supply only contactor TC1 3 Poles capacity of 25 Amps

Supply only contactor TA1-DN22

Supply only timer

Supply only relay

Supply only condenser unit as per specific requirement sutaible for existing water cooled chiller.

M&L carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 90 TR SHITL hangers Make Blue star Model LCAX1-0375-DA 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 screw type compressor / panel 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 as refill R134A

Supply only pressure sensor.

Supply only star main delta contactors (3TF52)

Supply only star main delta contactors (3TF50)

Rewinding of transformer

Supply only MCB'S of fan motor.

Supply only Exv control board .

Supply only compressor oil

Supply only flow switch.

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 45 TR C2 hangers Make Blue star Model: XAC2YS-048 AR 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 screw type compressor / panel 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 sensor.

Supply only expansion valve bulb .

Supply only temperature and pressure guages.

Supply only V-belts

Supply only power contactor 3 pole type MNX 50.

Supply only power contactor 3 pole type MNX 32.

Supply only auxiallry contactor add on block MNX-A1

Supply only auxiallry contactor MNX-A2

Supply only timer

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 35 TR 300 LT hangers Make Blue Star Model : XWC3S-039 AR 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 reciprocating screw type compressor / panel from the central type AC plant complete all as per manufactureres instruction and as directed by Engr-in- charge.

Note: (i) The rate quoted shall be deemed to include for necessary filter, T&P, MS Nuts, MS Bolts, MS washers, gaskets, oil filter, drier core filter, oil filter, synthetic oil etc to put into AC Plant and panels in serviceable condition, testing and commissioning complete all as directed by the Engr-in-charge. (ii) Labour charges for removing unserviceable parts / accessories and replacement with new one shall be deemed to be included in the unit rate.

(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) Renewal of control wiring in the system/ panel is deemed to be included in the rate. (v) Servicing shall be carried out through OEM /authorised Agency only and test report shall be submitted in dulicate. with following items as given below complete all as directed by Engr-in- charge.

Supply only compressor tripping on LP, expansion valve damaged

Supply only gas refill R 22

Supply only power contactor 3 pole type MNX 12

Supply only power contactor 3 pole type MNX 18

Supply only overload relay MN2

Supply only MCCB 250 Amps 4 pole

Supply only auxiallry contactor MNX-A2

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 34 P 86 hangers Make Blue Star Model : XAC 3S-036 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 screw type compressor / panel 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 temperature and pressure gauges

Supply only sensoner

Supply only MCCB 63 Amps

Supply only contactor MNX-A2(No NC)

Supply only gas refill R 22

Supply only auxiliary contact MNX 9

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 2x 34 P -240 AWS Make Blue Star Model : XWC3S-039 AR 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 screw type compressor / panel 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 submit Eng-in-charge.

Supply only sensoner

Supply only MCCB 63 Amps

Supply only MCB 3 Pole of 32 Amps

Supply only aux contact MNX 9

Supply only gas refill R 22

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 2 x 34 P 84 hangers Make Blue Star Model : XAC 3S-036 AR 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 screw type compressor / panel 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 submit Eng-in-charge.

Supply only sensoner

Supply only MCCB 63 Amps

Supply only MCB 3 Pole of 32 Amps

Supply only aux contact MNX 9

Supply only gas refill R 22

Supply only contactor MNX-A2(No NC)

M&L for carrying out the rectification of compressors, condensers and evapator system capacity of 3 x 35 LCAs Make Blue Star Model : XAC 3S-036 AR 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 screw type compressor / panel 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 submit Eng-in-charge.

Supply only sensoner

Supply only MCCB 63 Amps

Supply only MCB 3 Pole of 32 Amps

Supply only main contactor 3TS56.

Supply only aux contact MNX 9

Supply only gas refill R 22

M&L for disconnecting all cable connections of unserviceable LT servo voltage stabilizer, 3 phase, 50Hz, 415V, oil cooled of capacity upto 300 KVA of any make and shifting to workshop and including checking for defect and maintenance / servicing / overhauling to complete stabilizer comprising of servo motor, electric control panel, wiring, replacement of defective major/ minor parts, burnt wiring etc as required and cleaning inside with vaccum cleaner / blower, clean variac surface by carbon tetra chloride in air cool unit, check length of carbon brush, tighten all hardware, recheck all power & control wires, tighten grub screw at motor and variac coupling / gear grub screw dimple provided on the shaft, check gear / coupling & accessories, greasing of all the moving parts, checking and reinstall and making all connection, testing for its smooth functioning on completion complete all as specified and directed.

Note for Sl. item No. 09 :- (i) The quoted rate shall be deemed to be include for the following:- (a) The Major spares like transformer oil / wiring kit / motor / Gear / contactor, labour cost for maintenance including maintenance of record, control wire set, fuse, limit switch, lugs as required, consumables like grease and hardware like bolts and nuts etc including necessary machining work of any type. (b) Repair / servicing shall be carried out through OEM / authorised agency only.

Note for Sl. item Nos. 1 to 9: a) 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 extra cost . b) In case any delay in the rectification of defects is more than 24 hours for for minior defects and more than 48 hours for major defect ,the contractor to pay the department penalty of Rs 5000/-for minor defects and 10000/- for major defects towards inconvience caused to 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:-

90 TR Capacity

35 TR Capacity

COOL CONTROL

Chitturi Associates