REPAIR/MAINT TO CENTRAL AC PLANTS AND MISC WORKS AT 7 BRD AF UNDER GE (AF) TUGHLAKABAD

Amount

M&L for checking the leakage in both low and high side of the system by feeding dry nitrogen to maintain adequate pressure in the system, plugging the leaks including S&F in replacement of teflon sealing of all refrigerant line valves like liquid lines valves/suction/ discharge valves of compressors, gland packages of all angle valves flaring of all connections framing welding etc complete for the following plants complete all as specified and directed:- Note:Entire work is to be carried out by OEM i.e Bluestar for following plants.

AC plant of capacity 3 x 37.5 TR-Plant for RSBN. OEM- Bluestar

AC plant of capacity 3x15TR-Plant for Signal Section. OEM- Bluestar

AC plant of capacity 2 x 30 TR-Plant for ESCT. OEM-Bluestar

AC plant of Capacity 3x7.5 TR plant for PW-VI. OEM-Bluestar

AC plant of Capacity 1x7.5 TR plant for PW-III. OEM-Voltas

AC plant of Capacity 2x5.5TR-Plant for New signal centre.OEM-Bluestar

AC plant of Capacity 3 x 26 TR plant for Spyder. OEM-Bluestar

Opening the upper sheet and side sheet of AHU’s of the following plants for access to cooling coil, including M&L for washing/cleaning of cooling coil externally with mild acid or ( caustic soda hot water solution) followed by water jet including cleaning/washing of air filters and descaling of cooling coil of AHU by using apporoved chemical solution,re-fixing the side sheets after work and including changing of necessary fitting and T&P for mounting complete all as specified and directed. Note:1. Entire work is to be carried out by OEM i.e Bluestar for following plants.

AC plant of capacity 3x37.5 TR-Plant for RSBN . Make-Bluestar

AC plant of capacity 3x15 TR-Plant for Signal Sec. Make-Bluestar

AC plant of capacity 2x30 TR-Plant for ESCT. Make-Bluestar

AC plant of capacity 3x26 TR-Plant for spyder. Make-Bluestar

M&L for repair of AHU motor suitable for AC plants of the following capacity by dismounting it from weather making unit of AHU, rewinding of 7.5/10HP motor with same gauge super enamelled copper wire including removing burnt winding cleaning of slotes sepration of rotor and startor making insulation to all joint and mounting at the same location complete all as specified and directed.

Supply only in replacement of the following defective spare parts of AHU motor of any description/make and capacity 7.5/10 HP and in any positioin :-

Replacement of ball bearing.

Replacement of cooling fan.

Replacement of capacitor of suitable mfd

Replacement of seal, bush

Turning and polishing of motor shaft including lathe work

M&L for fixing in replacement of gun metal gate valve butterfly type of 15 mm dia complete all as specified and directed. Make SANT/Zoloto/Leader

M&L for fixing in replacement of gun metal gate valve butterfly type of 20 mm dia complete all as specified and directed. Make SANT/Zoloto/Leader

M&L for fixing in replacement of gun metal gate valve butterfly type of 25 mm dia complete all as specified and directed. Make SANT/Zoloto/Leader

M&L in replacement of the following cast iron Y type strainer flanged type as per existing. Make: Zoloto/Leader/Sant

65 mm dia.

80 mm dia.

M&L for opening the outer sheets of package unit to access cooling coil, washing/cleaning of cooling coil externally with mild acid or (caustic soda hot water solution) followed by water jet including cleaning/washing of air filter and re-fixing, complete all as specified and directed Note- Entire work shall be carried out by one of the OEM only i.e Bluestar/Voltas/Fedders Lloyd

AC Plant of capacity 1 x 7.5 TR Plant for PW-III. OEM-Voltas

AC Plant of capacity 3 x 7.5 TR Plant for PW-VI. OEM- Bluestar

AC Plant of capacity 2 x 5.5 TR Plant for signal Sec. OEM- Bluestar

Cleaning of existing choked fins of existing cooling towers with chemical, removing the sludge and replace of defective fins where required complete all as specified and directed by Engr-in-Charge.

AC plant of capacity 3x37.5 TR-Plant for RSBN . Make-Bluestar

AC plant of capacity 3x15 TR-Plant for Signal Sec. Make-Bluestar

AC plant of capacity 2x30 TR-Plant for ESCT. Make-Bluestar

AC plant of capacity 3x26 TR-Plant for spyder. Make-Bluestar

M&L for evacuation of gas from the system into the emplty cylinder provided by department/pumping down to the system, descaling condenser unit of the following capacity plants after by passing the cooling tower, pumps & supply and circulation of the descaling solution (ANTI SCALENE SCALE FOEE-100) with pump brushing the tubes and where required drilling the stubbon scalling without damaging the tube, replacement of deshed end gasket and unserviceable nuts and bolts assembling back complete testing and commissioning including removing air lock, recharging the gas taken out of the system complete all as specified and directed for the following plants. Notes: Descaling pumps, nylon brush, acid including storage containers, drill and drill bits etc shall be arranged by contractor and cost of the same deemed to be included in the quoted rate.

AC plant of capacity 3x37.5 TR-Plant for RSBN. No. of compressors are 9(OEM- Bluestar)

AC plant of capacity 3x15 TR-Plant for Signal Sec (OEM- Bluestar). No. of compressors are 3

AC plant of capacity 2x30 TR-Plant for ESCT (OEM-Bluestar). No. of compressors are 4

AC plant of capacity 3x26 TR-Plant for spyder (OEM- Bluestar. No. of compressors are 6

M&L for vacuum the system and after maintaining vacuum for 24 hours supply and charging refrigerant gas HCFC 22 complete all as specified and directed. Make:-Mafron/Refron

M&L for vacuum the system and after maintaining vacuum for 24 hours supply and charging refrigerant gas 407 C complete all as specified and directed.Make:-Mafron/Refron

M&L in replacement for EWT/LWT sensor suitable for tripping for AC plant of spyder 2x26 TR, RSBN 2x37.5, 2x15 Signal, 2x30 TR ESCT AC plant as required and specified by OEM i.e Bluestar. complete all as specified and directed.

M&L in replacement for digital temperature humidity display assembly as per existing sample for AC plant of spyder 2x26 TR, RSBN 2x37.5, 2x15 Signal, 2x30 TR ESCT AC plant as required complete all as specified and directed. Make :- Fluke or equivalent ISI Marked.

M&L in replacement for temperature gauge capcity 0-50 degree celcius placed on pipe line as per existing for AC plant of spyder 2x26 TR, RSBN 2x37.5, 2x15 Signal, 2x30 TR ESCT AC plant as required complete all as specified and directed. Make:- Guru or equivalent ISI Marked.

M&L in replacement for pressure gauge to read in IS unit type 0-10.6 KG/cm2 (low/high) as per existing for AC plant of spyder 2x26 TR, RSBN 2x37.5, 2x15 Signal, 2x30 TR ESCT AC plant as required complete all as specified and directed. Make:- Guru or equivalent ISI Marked.

Taking down defective /unserviceable AC compressor of capacity 5.5/7.5 TR package type AC, and repair the same compressor at company authorized outlet including replacemnet of bearing -02 Nos, rewinding of same gauge with super enamelled copper wire including removing burnt winding cleaning of slotes sepration of rotor and startor making insulation to all joint pressure testing, oiling, lathe work, piston rings, shaft seal, bush & establishing vacuum for dehydration complete all as specified and directed. NOTE- Compressor maintenance cost for next 6 months shall be deemed included in qouted rates.

Taking down existing water softener and supply and fixing water treatment system 440 LPM capacity non chemical online electrostatic type including control panel, outer casing made of SS 304 both ends flanged including necessary nut, bolts and rubber packing and cutting welding required at site complete all as specified and directed. Make: Model No 302 of M/s Weldon Engineers or equivalent of ION Exchange/Pristine water

Supply and fixing in replacement PVC insulated, armoured, heavy duty electric cable with aluminium conductor, 1100 volts grade, cross-sectional area 25 sqmm 3 core complete all as specified and directed. Make: Plaza/Havells/Finolex/Gloster

M&L for painting of AC Plant as per existing colour including compressor, condenser, motor, chiller pump, AHU, cooling tower, plant LT panel including base and all pipe lines & connected valve etc complete all as specified and directed for the following plants:- (Make of Paint-Asian/Indigo)

AC plant of capacity 3x37.5 TR-Plant for RSBN

AC plant of capacity 3x15 TR-Plant for Signal Sec

AC plant of capacity 2x30 TR-Plant for ESCT

AC plant of capacity 2x26 TR-Plant for Syder

M&L in replacement of control panel suitable for upto 7.5 TR package unit incl display unit, PCB model No -12.8412K10, contactor model No 3TF30100A-02 Nos, relay NO+NC, wiring complete all as specified and directed. Make:-Blue Star package model No DPUA5475

M&L in replacement of single phase preventor VSP 2 auto/manual reset of any size , 415V complete all as specified and directed. Make-AE/L&T/SG/Minilec.

M&L in replacement MCCB (AC 415 V) with adjustable thermal & fixed magnetic setting four pole 400 Amp 36 KA complete all as specified and directed. Make : GE/Havells/Legrand/L&T

M&L in replacement MCCB of capacity , 250 Amps ,04 pole , 415 V, 36 KA breaking capacity adjustable thermal & fixed magnetic. Make- Legrand/L&T/Havells.

M&L in replacement MCCB 200 A, 4 Pole, 415 V, 36 KA breaking capacity, with adjustable thermal & fixed magnetic release complete all as specified and directed. Make- Legrand/L&T/Havells.

M&L in replacement MCCB 100 A, 3 Pole, 415 V, 35 KA breaking capacity, with fixed thermal magnetic release complete all as specified and directed. Make- Legrand/L&T/Havells

M&L in replacement for MCCB 3 pole 63 Amps, 25 KA, complete all as specified and directed. Make- Legrand/ Havells/ L&T

M&L in replacement of electronic overload relay (Manual reset) relay range 9-16 Amp suitable for direct mountimg complete all as specified and directed. Make- L&T/Havells/legrand

M&L in replacement of electronic overload relay (Manual reset) relay frame size 4 inch relay range 24-40 amp suitable for contactor frame size CH 1 to CH 2 type MPR200Nx complete all as specified and directed. Make- Havells/L&T/Legrand.

S&F in replacement of flare nuts (5/8, 3/8) for connecting copper pipe for indoor & outdoor unit complete all as specified and directed.

M&L welding/brazing rod copper for fluxing to ac plant equipments complete all as specified and directed.

Supply only butane gas cane of 225 gms for brazing complete all as specified and directed.

S&F in replacement power contactor 3 pole type MNX 18 AC 3 rating 18 A with auxiliary contact 1 NO + 1 NC complete all as specified and directed. Make- L&T/Legrand/ABB/Havells

M&L in replacement Power contactor 3 pole Type MNX 70 AC 3 rating 70 A with auxiliary contact 2 NO + 2 NC , cat No - ST19002 complete all as specified and directed. Make- L&T/Legrand/ABB/Havells

M&L in replacement power contactor 3 pole Type 2 M 50 AC 3 rating 50A, coil capacity 240VAC complete all as specified and directed. Make:- HCC-3XU04AV246N or equivalent as approved by GE

S&F in replacement power contactor 3 pole type 3 ML AC 3 rating 40/45 A with auxiliary contact 2NO + 2NC complete all as specified and directed. Make- L&T/Legrand/ABB/Havells

S&F in replacement power contactor 3 pole Type MNX 25 A AC 3 rating 25 A with auxilary contact 2NO + 2NC complete all as specified and directed. Make- Cat No -SS9092L&T/Legrand/ABB/Havells

S&F in replacement Power contactor 3 pole Type 1.5 ML AC 3 rating 25 A with auxilary contact 2 NO + 2 NC complete all as specified and directed. Make- Cat No - SS91851 L&T/Legrand/ABB/Havells

M&L in replacement power contactor 3 pole Type MNX 12 AC 3 rating 12 A with auxilary contact 2NO + 2NC. Make- L&T/Legrand/ABB/Havells

M&L for thermal insulation for ducts with 13mm thick nitrile rubber insulation, complete all as specified and directed.

Supply and installation in replacement of aluminium powder coated grills/diffusers for supply air/return air and size 400x 400mm, square type with MS volume control dampers complete all as specified and directed.

M&L in replacement of supply/return air ducting fabricated out of GI sheet of thickness as under complete all as specified and directed as under:-

Made out of 22 Gauge

Made out of 24 Gauge

S&F in replacement of high pressure cutout for R-22. complete all specified and directed. Make:- Danfoss or equivalent ISI marked as approved by GE

S&F in replacement of low pressure cutout for R-22. complete all specified and directed. Make:- Danfoss or equivalent ISI marked as approved by GE

S&F in replacement of oil pressure cutout for R-22 complete all specified and directed. Make:- Danfoss or equivalent ISI marked as approved by GE

S&F in replacement of solonoid valve for AC plant of cap upto 80 TR complete all specified and directed.

M&L in replacment of PUF insulation 36 mm thick, density 36kg/cm and 26 gauge GI cladding complete with necessry mounting arrangement like clamps nut, bolt etc suitable for existing AC plant cap upto 100 TR complete all as specified and directed.

M&L in replacement of PCB with display unit complete with necessary mounting, contactor, wiring kit, thimble, contact complete suitable for existing AC Plant cap upto 100 TR complete all as specified and as directed. Make :- Blue star model No 1102-07 or equivalent in carrier/Voltas.

M&L in replacement duct filter with SS material filter media capacity shall capable 5 microns as per existing suitable for AC plant of capacity upto 75 TR package units as per site requirement. complete all as specified and directed.

M&L in replacement strip heating element of cap 3KW (3000 W) 240 Volt Ac 50 Hz single phase complete all as specified and directed. Make:- Danfoss or equivalent ISI marked as approved by GE

M&L in replacement compressor strip heaters of cap 1.5KW, 240 Volt Ac 50 Hz single phase complete all as specified and directed. Make:- Danfoss or equivalent ISI marked as approved by GE

M&L in replacement aluminium sprinkler 3'x63mm with necessary mounting complete suitable for existing cooling towers complete all as specified and directed.

M&L in replacement rigid PVC (drift size 600 MM X 600 MM X 125 MM) elemator for distribution of water over fills with necessary mounting complete suitable for existing cooling towers cap upto 100 TR complete all as specified and directed.

Taking out the unserviceable motor and rewinding of motor capacity 7.5 HP with same gauge with super enameled copper wire including removing burnt winding cleaning of slots separation of rotor and starter making insulation to all joint and replacement of the following items complete all as specified and directed. (a) Replacement of ball bearing. Make: SKF-02 Nos (b) Replacement of bush (c) Replacement of cooling fan - 01 Nos.

All as per srl item no.53 above but motor capacity 5 HP

All as per srl item no. 53 above but motor capacity 3 HP

All as per srl item no. 53 above but motor capacity 2 HP

Opening of pump 7.5 HP centrifugal for repair and replacement of unserviceable parts including re-fixing the same in existing position including testing and commissioning complete all as specified and directed.

All as per srl item No 54 above but 5 HP

All as per srl item No 54 above but 3 HP

Supply only in replacement of following defective spare parts of motor of any description/make and capacity 5/7.5 HP and in any positioin complete all as specified and directed.

Replacement of gun metal impeller.

Replacement of gun metal bush

Replacement of ball bearing.

Replacement of oil seal

Replacement of gland

Replacement of gun metal impeller for 03 HP

M&L in replacement of fasteners made of aluminium with suitable size for fixing of cooling tower fan blades including nut, bolts etc complete all as specified and directed.

Cleaning of Y type strainer by opening of all nut, bolts and removing filter under strainer cleaning the accumulated mud of cooling tower of any capacity, choked nozzles, valves etc. complete all as specified and directed.

Taking down the unserviceable MCB and replace same with MCB TP 63 Amp, 415V, 10 kA complete all as specified and directed.

M&L in replacement of three layered rotational moulded polyethylene water storage capacity 500 L tank (cylindrical vertical with closed top) hoisted and fixed in position complete all as specified and directed. Make- Syntex/Reno/Polycon

M&L in replacement of three layered rotational moulded polyethylene water storage capacity 1000 L tank (cylindrical vertical with closed top) hoisted and fixed in position complete all as specified and directed. Make- Syntex/Reno/Polycon

M&L in replacement of three layered rotational moulded polyethylene water storage capacity 2000 L tank (cylindrical vertical with closed top) hoisted and fixed in position complete all as specified and directed. Make- Syntex/Reno/Polycon

M&L in replacement of cooling tower FRP type forced draft suitable for AC plant capacity 60 TR along with high speed fan motor and mounting and connection frame along with nut bolt, washer, sprinkler. Note: Work includes welding work to GI pipe and PCC/brick work required for raising plateform height on which cooling tower is to be fixed. Make- FRP Polo/ Ascent Engineering NOTE- Cooling tower maintenance cost for next 6 months shall deemed to be included in qouted rates.

Taking down the unserviceable MCB,SP and replace the same with MCB,SP, 6-32 Amp, 10 KA complete all as specified and directed.

M&L in replacement,commissioning and testing of AC compressor suitable for 15 TR at various location of AC plants, comprising of dismantling replacement of unserviceable components including, metaling grinding,polishing and reflux nuts, bolts, washers, assembling the compressor testing on load complete all as specified and directed. Make- Model No SM185S4RC Danfoss or equivalent of Blue star/Voltas Note : Spare parts/component will be measured & paid seperately under item No 65.00 here in below.

Supply only under mentioned spare parts for AC plants for maintenance of repair to compressor.

Connecting rod

Cylinder liner

Piston

Piston ring

Gajan pin

Suction plates

Suction read and discharge read

Oil pump

Loader assembly

Gasket sets complete

Rubber coupling with lock

Oil filter

Spring section

Spring ducting

Oil seal

Main Bearing

M&L in replacement of fabrication and designing for motor and pump mounting made up of channel MS angle iron, Ms channel, MS sheet and ensuring the allignment of pump and motor thickness not less than 7 mm framed brackets of angles or tees with web and flanges cut to shape, drilled and countersunk for screw, including bending and welding angles, as necessary, gusset plates, riveting, etc. n exc 10 kg each brackets, conforming to Fe.290.Gde-E-165 (brackets over 10 kg each to be measured under 'Structural Steel') complete all as specified and directed.

M&L in replacement of pre-insulated MS pipe dia 65 mm , class 'C' heavy duty having thickness of PUF insulation 36 mm of density 36 Kg/cum and 26 gauge GI cladding complete suitable for above ground with all mounting arrangements like clamps with nut, bolt , brazing etc. complete all as specified and directed. Make-Jindal/TATA/BST/Surya

M&L in replacement of pre-insulated MS pipe dia 80 mm , class 'C' heavy duty having thickness of PUF insulation 40 mm of density 36 Kg/cum and 26 gauge GI cladding complete suitable for above ground with all mounting arrangements like clamps with nut, bolt , brazing etc. complete all as specified and directed. Make-Jindal/TATA/BST/Surya

M&L in replacement of pre-insulated MS pipe dia 50 mm , class 'C' heavy duty having thickness of PUF insulation 36 mm of density 36 Kg/cum and 26 gauge GI cladding complete suitable for above ground with all mounting arrangements like clamps with nut, bolt , brazing etc. complete all as specified and directed. Make-Jindal/TATA/BST/Surya

M&L in replacement of inner copper tubing of chiller of capacity 37.5 TR including necessary brazing, welding work complete all as specified and directed including dismantling of existing pipeline and miscellineous work required at site, refixing of all water lines, insulation, check leakage, testing and sensors shall deemed to be included in quoted rate by Contractor . Make-Bluestar or equivalent ISI Marked.

Supply and fixing the following unserviceable accessories of complete central/package type AC plant of capacity upto 100 TR including commissioning and testing complete all as specified and directed:-

Out door unit condensing/AHU motor's fan blade

V Belt of AHU

Canvas cloth for linkage as per existing

Phase sequence corrector

Expansion valve as per existing

MS Nuts, bolts and washers of various sizes as required.

Compressor oil No-90

S&F in repairs indicator lamps suitable for 3 phase LT panel board/as per sample complete all as specified and directed.

M&L in replacement of ampere meter digital type, 415V suitable for existing panel CT operated of range 0-100 as required complete all as specified and directed. Make- AE/L&T/Legrand

M&L in replacement of voltmeter digital type, 415V suitable for existing panel CT operated of range 0-500 V complete all as specified and directed. Make- AE/L&T/Legrand

M&L in replacement of MNX/MCX front block 2NO and 2NC complete all as specified & directed. Make-AE/kappa/SG/L&T

M&L in replacement of terminal block single way suitable for mounting unit complete all as specified & directed. Make-AE/kappa/SG/L&T

M&L in replacement of panel mounted ON/OFF push button with contact block complete all as specified & directed. Make:- SG/L&T/Selzer

M&L in replacement of CT 50/5 complete all as specified & directed. Make-AE/kappa/Legrand/L&T

M&L for fixing in replacement of cast iron butterfly valve (wafer type) of following size without lugs, lever operated, SS 304 disc, Nitrile /EPDM rubber lining test pressure PN-1.0 by replacing the existing one, complete all as specified and directed. Make Zoloto/Leader/Sant

50 mm dia

65 mm dia

80 mm dia

M&L in replacement of earthing complete with galvanised steel earth plate electrode, 600x600x6mm thick, buried directly in ground vertically to depth not less than 1.5 meters below normal ground level, connected to galvanised iron earthing strip 25x4mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, GI watering pipe 15 mm bore light grade with funnel and wire mesh, PCC chamber in cement concrete 1:3:6 type C1, 80mm thick pre-cast RCC 1:2:4, type B-1 cover reinforced earth plate surrounded by alternate layers of packed charcoal, salt oacked which shall not be less than 15cm in all side of earth plate complete all as shown in electrical plate No 3 of MES schedule Part-I all as specified and directed.

M/S S.K.Electricals