CA NO CWE/PM/SP-29/2020-21 COMPREHENSIVE MAINTENANCE OF CENTRAL AC PLANTS IN THE CAMERO AREA UNDER GE (AF) SUBROTO PARK DELHI CANTT-10

Amount

M&L for servicing of AHU capacity of 20000 CFM AC plant installed at DIT comprising of cleaning the coil/filters with chemical followed with pressurised water jet greasing of AHU motor, tighetning of belts, tightening of all nut/bolts for noiseless operation of AHU section complete all as specified and directed by the Engineer-in-Charge. Note: Servicing of AHU shall be carried out once in six months or as and when required till date of completion as mentioned in Work Order No.1/extended date of completion. Rate of the same shall be deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

M&L for servicing to condensor (3 Nos) of 3 x 18 TR AC plant installed at DIT including opening the end plates, carrying out the descaling with descaling compound and pull through with nylon brush in each tubes, cleaning thoroughly with water, refixing the end plates to its existing position to ensure leak proof area complete all as specified and directed by the Engineer-in-Charge. Note: Servicing shall be carried out during the commencement of contract and after sixth month from first servicing as mentioned in Work Order No. 1/extended date of completion. Rate of the same shall be deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

M&L for welding/brazing of Mufller for arresting of leakage and after welding applying synthetic enamel paint including cleaning of mufller complete all as specified and directed by the Engineer-in-Charge.

M&L for servicing FRP type cooling tower of capacity 40 TR at DIT including cleaning of sump, circulation of descalling compound, checking the smooth operation of CT fan, distribution arms and fan guard for noise free operation complete all as specified and directed by the Engineer-in-Charge.

M&L for repair to suction & discharge valve of compressor 3x18 TR of capacity by means of replacing the teflon washer sheet, suction & discharge valve ring, spring, 'O' rings, gaskets etc complete and testing for proper holding of valve, leak testing etc complete, all as specified and directed by Engineer-in-Charge. NOTE: The rate inclusive of suction & discharge valve which is considered as one job.

M & L for leakage testing of AHU unit cooling coil 20000 CFM at DIT after pumping down the complete system, isolating the cooling coil from both ends and charging the dry nitrogen gas for pressure leakage test, after detecting leakage point, release the nitrogen gas, repairing the leakage point by means of soldering/ brazing and connecting the cooling coil with system, vaccumised the complete system and re-charge the system by refrigerent, testing and commissioning up to satisfactory cooling performance complete, all as specified and directed by Engineer-in-Charge. Note: (i) Refrigerent gas shall be mesaured and paid separately as supply only. (ii) Nitrogen gas required deemed to be inclusive in the quoted rate.

M&L for opening of condensor and removing of unserviceable condensor tube from existing position without damged then supply and fixing of condensor tube size 5x8 inch dia 5 feet length including cleaning of condensor after repairing and pumping down the gas complete, all as specified and directed by Engineer-in-Charge.

Taking out unserviceable CT motor 3.0 HP suitable for central AC plant of capacity 3x18 TR and rewinding with super enamelled copper winding wire including replacement of bearings and testing after rewinding and refixing to its existing location complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable V belt for compressor SMC for central AC plant complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable V belt for AHU for central AC plant of capacity 3x18 TR complete, all as specified and directed by the Engineer-in-Charge.

M&L for servicing of compressor of capacity 18 TR(3Nos) of Central AC plant installed at DIT opening of top head of the compressor and replacement of minor items complete all as specified and as directed by the Engineer-in-Charge.

S&F in replacement of liquid line valve fixing in exiting position including welding in proper position after fixing cheking of leaking and leak arrest etc for compressor SMC 65 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable solenoid valve for fluid control having coil voltage 230 volts including connections suitable for SMC 65 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable course filters box type of size 62x62x4 cm to AHU of capacity 36 TR suitable for SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable oil pump suitable for SMC 65 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable gear and brush for oil pump assembly suitable for SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable oil strainer suitable for SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable bushing as per site requirement size for crank shaft of compressor model SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable suction strainer for compressor model SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable half section of bearing of existing size make and model for compressor SMC 865 as per site requirement size for compressor complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable cylinder liner for compressor model SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of expansion valve for compressor of capacity 18/20 TR including welding/brazing and checking of leaking and leak arrest complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of solenoid valve including weding/gaskit/ screewing etc for SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of Liquid line solenoid valve for AHU 20000 CFM including welding, leak testing and leak arrest complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of liquid line Y stainer for AHU 20000 CFM including welding, leak testing and leak arrest complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable set of gasket for compressor model SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable set of neoprene 'O' ring for compressor model SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable thrust bearing for crank shaft suitable for compressor model SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable discharge pressure gauge 0 to 300 PSI of dia 4" complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable water pressure gauge 0-150 PSI 4" dia dial type complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable thermometer industrial type complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable oil pressure gauge 0 to 150 PSI of dia 4" complete, all as specified and as directed by the Engineer-in-Charge.

S&F in replacement of panel air filters, dry type, washable, rated air flow capacity 1600 CFM 99.9%, down to particle 20 micron of Suitable sizes or nearest for AHU of central AC plant complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of teflon washer for suction valve for compressor SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of teflon washer for discharge valve for compressor SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unloading cylinder for compressor SMC 865 complete, all as specified and as directed by the Engineer-in-Charge.

S&F in replacement of gate valve suitable for 80 mm dia GI pipe complete, all as specifeid and directed by Engineer-in-Charge.

M&L for repair to 3 phase monoblock water pump set of capacity 7.5 HP for DIT and AFCME AC plant including rewinding in replacement of bearings, seal, cleaning of parts and carry out necessary inspection for wornout parts, replacement of old unserviceable worn out parts and refixing the unit to its existing location after completion of overhauling/repair complete, all as specified and as directed by the Engineer-in-Charge.

M&L for taking out unserviceable squirrel cage motor and rewinding squirrel cage motor of mono block pump set model KDS-527 of capacity 5 HP 3 phase for DIT and AFCME AC plant with super enamelled copper winding wire and replacement of bearing and minor spare parts like as keys, bushes etc and testing after rewinding and refixing to its existing location after rewinding complete, all as specified and directed by the Engineer-in-Charge.

M&L for servicing to 3 x 12 TR (36 TR) air cooled central AC unit installed at AFCME including washing of evaporator unit, condensing unit, greasing to condensor motor for noise free operation, servicing to ceiling suspended AHU-04 Nos, cleaning of air filters, tightening of electrical/mechanical connections complete, all as specified and directed by the Engineer-in-Charge. Note: Servicing of AC Plants shall be carried out twice during contract period as and when required. Rate of the same shall be deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

Painting to the installation of AC plant 1x36 TR installed at AFCME including all system i.e. air cooling tower, compressor, pumps, duct, all pipe lines, stands, motor as per existing colour code with one coat of synthetic enamel paint with the help of spray gun after cleaning and preparation of surfaces including writing SM/MES No with white letters on black back ground complete, all as specified and directed by the Engineer-in-Charge.

M&L for painting LT panel installed for central AC plants at AFCME as per existing colour code with one coat of synthetic enamel paint with the help of spray gun after cleaning and preparation of surfaces complete, all as specified and directed by the Engineer-in-Charge.

M&L for painting Servo voltage stablizer of capacity 50 KVA at AFCME and DIT as per existing colour code with one coat of synthetic enamel paint with the help of spray gun after cleaning and preparation of surfaces including writing SM/MES No with white letters on black back ground complete, all as specified and as directed by the Engineer-in-Charge.

S&F in replacement of water flow switch including control cable from panel to switch, elecrical connection, welding, screwing complete, all as specified and directed by the Engineer-in-Charge.

All as per item No 39.00 here in before but blower motor capacity of 10 HP for AHU of central AC plant at AFCME of capacity 1x36 TR.

M&L for refrigerant charging (M-22/F-22/R-22) for central AC plant including pressure testing the complete plant by dry nitrogen gas by separating high side and low side, rectifying the leakage by gas welding brazing pressure testing vaccuming the system and re-charging the system with gas, testing and commissioning complete, all as specified and directed by Engineer-in Chatge. Note:- Any leakage occurs after charging of gas same shall be repaired and rectified by contractor without claiming extra cost from department.

Supply & filling compressor oil suitable as per existing viscosity for SMC 865 complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of suction service valve , fixing in proper posistion and taking down unsv items including arresting of leaking and pressure testing, gas charging , nitrogen gas charging, and suitable size gas kit with nut bolts and washer complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of discharge service valve, fixing in proper posistion and taking down unserviceable items including arresting of leaking and pressure testing, gas charging, nitrogen gas charging, and suitable size gas kit with nut bolts and washer complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of 50mm dia GI tubing medium grade of following sizes/dia with all fittings complete laid in trenches/on wall/on ceiling/roof etc including necessary suitable size of MS clamps/saddling on walls etc complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of 65mm dia GI tubing medium grade of following sizes/dia with all fittings complete laid in trenches/on wall/on ceiling/roof etc including necessary suitable size of MS clamps/saddling on walls etc complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of 80mm dia GI tubing medium grade of following sizes/dia with all fittings complete laid in trenches/on wall/on ceiling/roof etc including necessary suitable size of MS clamps/saddling on walls etc complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of discharge saftey valave with checking of leak testing complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of oil HP cut out type MP - 5 suitable for M-22/F-22/R-22 gas complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of gas LP/HP combination cut out MP - 15 suitable for M-22/F-22/R-22 gas complete with flare nut complete, all as specified and directed by Engineer-in-Charge.

S& F in replacement of 16 Sqmm Copper cable, 3 core for comppressor connection from panel to comppressor complete, all as specified and directed by Engineer-in-Charge.

S& F in replacement of earth leakage relay suitable for 3x18 TR compressor motor starter complete, all as specified and directed by Engineer-in-Charge.

S&F replacement of ammeter with ratio of 100/5 Amps & complete, all as specified and directed by Engineer-in-Charge.

S&F replacement of voltmeter 0-500 V AC supply 50 Hz complete, all as specified and directed by Engineer-in-Charge.

S&F electrical wiring of panel with suitable 1.5 Sq.mm/2.5 Sqmm (nominal area) PVC unsheathed multi strandard copper conductor pvc insulated 1100 volt FRLS grade single core cable, testing and commisioning of complete power system including taking down and refixing of serviceable conductor, timer,overload relay,earth lekage relay, MCCB, servicing of starter etc.satisfacotry operation of the AC plant of capacity 3x18TR complete, all as specified and directed by Engineer-in-Charge. Note:- Addtional spare parts mesured and paid separatly.

S&F in replacement of unserviceable MCCB 200 Amps 4 pole 36 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable MCCB 160 Amps 4 pole 36 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting complete, all as specified and directed by the Engineer-in-Charge.

S&F in replacement of unserviceable MCCB 100 Amps 4 pole 25 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting including taking out old unserviceable MCCB from panel complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of unserviceable MCCB 100 Amps 3 pole, 25KA, 415 volts, 50 Hz with adjustable thermal and fixed magnetic setting including taking out old unserviceable MCCB from panel complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of unserviceable contactor MNX-12, 2 pole with thermal magnetic release and 1 NO complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of unserviceable add on contacts MNX A2 with 1 NO+NC complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of unserviceable add on contacts MNX A1 with NO+NC complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of unserviceable MCB TP 16-32Amp complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of unserviceable MCB TPN 63Amp complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of unserviceable MCB DP 63Amp complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement scroll compressor of capacity 12.5 TR with washers, bolts and nuts three phase 415 V 50 Hz suitable for central AC plant including brazing leak test of the system with compressed nitrogen and testing the unit for satisfactory functioning complete, all as specified and directed by Engineer-in-Charge.

M&L for replacement of Aluminum/FRP Fan hub assembly suitable for 36/40 TR cooling tower at DIT and AFCME including taking out unserviceable items and fixing in new for existing size and shape complete, all as specified and directed by Engineer-in-Charge.

M&L for in replacement of Aluminum/FRP Fan assembly for 36/40 TR cooling tower at DIT and AFCME including taking out unserviceable items and fixing in new for existing size and shape complete, all as specified and directed by Engineer-in-Charge.

Supply, assemble and erection of GI Sheet with TDF flange rectangular/square duct made out of 'L' shaped hollow profile,duly factory boxed ,incl all accessories such as supply air and return air diffuser,corner, cleat,carrage bolt,gasket and appropriate sealent on longitudinal joints etc complete of size 18 Gauge complete, all as specified and directed by Engineer-in-Charge.

M&L for duct insulation with resin bonded fibre glass wool roll of density 24 kg/Cum, with factory laminated aluminium vapour barrier, thickness of insulation 40mm as specified and including the following:- (a) Cleaning the duct surface (to be insulated ) by scrapping carefully with wire brush etc. to make the surface completely free of millscale, dirt, dust, grease and other foreign materials, taking special care so that all duct joints are sealed against any leakage. (b) Applying rubber based adhesive CPRX compound. (c) Sealing of all longitudinal joints and circular overlaps with and including Aluminium foil tape 50 mm wide, to make the insulation leakproof. (d) Securing the insulation with and including mechanically fastened nylon.

Charges for attending to central AC plant complaints for rectification of minor complaints in LT panel, control Panel, AHU, compressor and condensor including replacement of minor parts like nut bolts, washer, small gaskit complete, all as specified and directed by Engineer-in-Charge.

M & L for dismantling of complete unit of automatic voltage stabilzer oil cooled type 3 phase 440 Volts , 50 hz, 100 KVA aftr discannecting of electrical connection, taking out oil strp blue line, cleaning and segregating of mechanical mechanisum of operation as per direction of Engr-in-Charge cleaning of inner surface of tank, carrying out repairs including replacement of worm out parts, replacement of nuts, bolts of required Nos, refilling of transformer oil, after dehydration up to 60 KV, assembling connecting to electric supply load and on site tesiting on full load for manual corrected output voltage at variable (within permussible limit) input voltage and cut off action on low voltage up to the entire satisfaction of the Engineer-in -charge (Note: Spare parts shall be measured and paid separately and above mentioned entire specification and fixing of spare parts is including one job)

Supply only servomotor of existing shape and size complete, all as specified and directed by Engineer-in-Charge.

Supply only Elecronic circuit card (PCB) complete, all as specified and directed by Engineer-in-Charge.

Supply only Elecronic circuit card PCB holder complete, all as specified and directed by Engineer-in-Charge.

Supply only complete micro processer based panel complete, all as specified and directed by Engineer-in-Charge.

Supply only Potentio meter complete, all as specified and directed by Engineer-in-Charge.

Suppy only drive assembly 25/35 KVA per Phase complete, all as specified and directed by Engineer-in-Charge.

Supply only RC network servo meter complete, all as specified and directed by Engineer-in-Charge.

Supply only DPDT switch complete, all as specified and directed by Engineer-in-Charge.

Supply only panel lamp complete, all as specified and directed by Engineer-in-Charge.

Supply only Dimmer state 20 to 30 Amps complete, all as specified and directed by Engineer-in-Charge.

Supply only servo oil for voltage stabilizer complete, all as specified and directed by Engineer-in-Charge.

M & L for dismantling of complete unit of automatic voltage stabilzer oil cooled type 3 phase 440 Volts, 50 hz, 50 KVA after discannecting of electrical connection, taking out oil strp blue line, cleaning and segregating of mechanical mechanisum of operation as per direction of Engr-in-Charge cleaning of inner surface of tank, carrying out repairs including replacement of worm out parts, replacement of nuts, bolts of required Nos, refilling of transformer oil, after dehydration up to 60 KV, assembling connecting to electric supply load and on site tesiting on full load for manual corrected output voltage at variable (within permussible limit) input voltage and cut off action on low voltage up to the entire satisfaction of the Engineer-in -Charge.

Supply only servo motor of existing shape and size complete, all as specified and directed by Engineer-in-Charge.

Supply only Elecronic circuit card (PCB) complete, all as specified and directed by Engineer-in-Charge.

Supply only Elecronic circuit card PCB holder complete, all as specified and directed by Engineer-in-Charge.

Supply only Micro switch of existing shape and sizes complete, all as specified and directed by Engineer-in-Charge.

Supply only Carbun brush with brush holder (set of three) complete, all as specified and directed by Engineer-in-Charge.

Supply only complete micro processer based panel complete, all as specified and directed by Engineer-in-Charge.

Supply only tigger transformer complete, all as specified and directed by Engineer-in-Charge.

Suppy only drive assembly 20 KVA per Phase complete, all as specified and directed by Engineer-in-Charge.

Supply only RC network servo meter complete, all as specified and directed by Engineer-in-Charge.

Supply only Ampere meter with CT complete, all as specified and directed by Engineer-in-Charge.

Supply only Dimmer state 20 to 30 Amps complete, all as specified and directed by Engineer-in-Charge.

Supply only servo oil for voltage stabilizer complete, all as specified and directed by Engineer-in-Charge.

M&L for insulation to chilled water piping with 12 mm thick rubber nitril with Aluminium foil of density 30 Kg/Cum for 65 mm chilled water pipe complete with rubber based adhesive Pidlite SR 998/equivalent and thermal conductivity not exceeding 0.0035 W/Mk at an average temp of 40 Degree C complete, all as specified and directed by Engineer-in-Charge.

M&L for insulation to chilled water piping of central AC plant of size 80 mm dia with 19 mm (for all pipes) and 13 mm (for drain pipes) thick closed cell chemically cross linked fire retardant polyethelene foam insulation of density 30 Kg/Cum. The thermal conductivity of the material should not excceed 0.035 W/Mk at an average temp of 40 deg C, covered with aluminium faced foil complete with application with rubber based adhesive pidilite SR 998 and 50 mm X 3 mm thick self adhesive tape on both longitudinal & transverse joints simultaneously complete, all as specified and directed by Engineer-in-Charge.

All as per item No 103.00 hereinbefore but 65 mm dia chilled water pipe including valves, strainers etc.

All as per item No 103.00 hereinbefore but 50mm dia drain pipe.

M&L for insulation to HDPE expansion tank of size 1000 Ltr of central AC Plant with suitable FR-XLPE/XPE 19 mm thick of minimum bulk density 28/-4 Kg/Cum covered with vapour barrier and finished with 0.5 mm thick aluminium cladding and application with rubber based adhesive pidilite SR 998 and 50 mm X 3 mm thick self adhesive tape on joints complete, all as specified and directed by Engineer-in-Charge.

S& F in replacement of Micron filter capable of filtering perticels upto 5 micron size of 24x24x6 fixing in AHU at DIT central AC plant including repair/replacement of angle iron and necessary nut bolts complete, all as specified and directed by Engineer-in-Charge.

M&L for replacement of diffuser round/square type fixing duct at roof including taking down existing unserviceable items and fixing new diffuser suitable for existing size and shape with nuts, bolts and clamps complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of unserviceable MCCB 400 amps 3 pole 36 KA 415 volts 50 Hz with adjustable thermal and fixed magnetic setting complete, all as specified and directed by Engineer-in-Charge.

Taking out unserviceable induction electric motor of 18 TR comprressor and rewinding induction electric motor 25 HP 3 phase 415 V at DIT AC plants for compressor with copper winding wire including insulation thimbles greasing & replacement of minor spare parts such as keys, bushes etc and testiang after rewinding and refixing to its existing location after rewinding complete, all as specified and directed by Engineer-in-Charge.

S&F in replacement of 6 Sqmm copper Control Cable, 3 core for AHU motor including connection from panel to Motor complete, all as specified and directed by Engineer-in-Charge.

M&L for servicing to cooling tower of 36 TR AC plant installed at DIT and 36 TR at AFCME including removing of dust perticels ,cleaning thoroughly with water, refixing of water nozels to its existing position to ensure leak proof area if water leaking from tower making leak arrest by using chemical compound complete, all as specified and directed by Engineer-in-Charge. Note: Servicing shall be carried out during the commencement of contract and after sixth month from first servicing as mentioned in Work Order No. 1/extended date of completion. Rate of the same shall be deemed inclusive in Rate quoted for BOQ. Nothing extra shall be paid on this account.

Saini Enterprises

Flint India