REPAIR /MAINT TO CENTRAL AC PLANTS INCL AHU, COOLING TOWER AND OTHER MISC WORKS AT 7 BRD 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 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:- Note:1. 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 3x60 TR plant for PW-VI. OEM-Bluestar

AC plant of Capacity 3x37.5 TR plant for PW-III. OEM-Voltas

AC plant of Cap 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,Condensor Unit 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, re-fixing and changing of necessary fitting, T&P for mounting and all connections framing welding as specified and directed by Engr-in- charge. 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 with following capacity by dismounting it from weather making unit of AHU, rewinding of 10/12.5HP motor same gauge with super enamelled copper wire including removing burnt winding cleaning of slotes sepration of rotor and startor making insulation to all joint all as specified and directed by Engr-in- charge.

Supply only in replacement of following defective spare parts of AHU motor of any description/make and capacity 10/12.5 Hp and in any positioin :- make :- kirloskar

Replacement of ball bearing.

Replacement of cooling fan.

Replacement of capacitor of suitable mfd

Replacement of seal of motors.

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 by Engr-in-Charge. Make Zoloto/Leader

20 mm dia

25 mm dia

M&L in replacement of Y type strainer CI body flanged ends with stainless stell strainer type as per existing Make: Zoloto/Leader

65 mm dia.

80 mm dia.

M&L for evacuation of gas from the system into the empty cylinder provided by department/pumping down to the system, descaling condenser unit of the following capacity plants after bypassing the cooling tower, pumps & supply and circulation of the descalling 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 by Engr-in-charge. Notes: Descaling pumps, nylon brush, acid including storage containers, drill and drill bits to be arranged by contractor and cost of the same deemed to be included in the rate quoted for the following:- 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. No of compressor 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

AC plant of Capacity 3x7.5 TR plant for PW-VI. OEM-Bluestar no of compressor are12

AC plant of Capacity 1x7.5 TR plant for PW-III. OEM-Voltas No. of compressor are 9

M & L for Vacuum the system and after maintaining vacuum for 24 hours supply and charge refrigerant gas HCFC 22/407C/410 complete all as specified and directed by the Engineer-in-Charge. 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, 3x7.5 TR PW-VI, 3x7.5 TR PW-III AC plant as required and specified by OEM i.e Bluestar. Complete all as specified and as directed by Engr-in-Charge

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, 3x7.5 TR PW-VI, 3x7.5 TR PW-III AC plant as required and specified complete all as specified and as directed by Engr-in-Charge. Make :- Fluke or equivalent ISI Marked.

M&L in replacement for Thermometer gauge with thermowell complete with fittings etc as reqd capacity 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, 3x7.5 TR PW-VI, 3x7.5 TR PW-III AC plant as required and specified. Complete all as specified and as directed by Engr-in-Charge. Make:- Feibig ,H Guru.

M&L in replacement pressure gauge complete with fittings ,cock valve ,syphon and pressure gauge etc Range 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 3x7.5 TR PW-VI, 3x7.5 TR PW-III AC plant as required and specified complete all as specified and as directed by Engr-in-Charge. Make:- Feibig ,H Guru.

Taking down defective /unserviceable AC compressor of capacity 5.5/7.5 TR package type AC, and repair of 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 by Engr-in-Charge. NOTE- Compressor maintenance cost for next 6 months is deemed to be included in qouted rates.

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

All as per srl item No 14 above but 3.5 core 35 sqmm

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 by Engr-in-Charge 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

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

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 by Engr-in-Charge. Make:-Blue Star package model No DPUA5475 & equivalent

M&L in replacement of Single phase preventor VSP 2 auto/manual reset of any size , 415V, 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. Make : GE or equivalent Havells/Legrand

M&L in replacement MCCB (AC 415 V) with adjustable thermal & fixed magnetic setting Four pole 620 Amp 36 KA. Make : GE or equivalent Havells/Legrand

M&L in replacement MCCB 200 A, 4 Pole, 415 V, 36 KA Breaking capacity, with adjustable thermal & fixed magnetic release. Make- Legrand or equivalent L&T/Havells.

M&L in replacement MCCB 100 A, 4 Pole, 415 V, 35 KA Breaking capacity, with fixed thermal magnetic release. Make- Legrand or equivalent L&T/Havells

M&L in replacement for MCCB 3 pole 63 amps, 25 KA, complete all as specified and directed by Engr-in-Charge. make- Legrand/ Havells/ L&T

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 . Make- Havells or equivalent 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 by Engr-in-Charge

M & L welding/brazing rod copper for fluxing to ac plant equipments complete all as specified and directed by Engr-in-Charge

Supply only Butane gas cane of 225 gms for brazing complete all as specified and directed by Engr-in-Charge

S&F in replacement Power contactor 3 pole Type MNX 18 AC 3 rating 18 A with auxiliary contact 1 NO + 1 NC , Make- L&T/Legrand

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. Make- L&T/Legrand

M&L in replacement Power contactor 3 pole Type 2 M 50 AC 3 rating 50A, coil capacity 240VAC. Make:- HCC-3XU04AV246N or equivalent.

S&F in replacement Power contactor 3 pole Type 3 ML AC 3 rating 40/45 A with auxiliary contact 2NO + 2NC, cat No - SS90721. Make- L&T/Legrand

S&F in replacement Power contactor 3 pole Type MNX 25 A AC 3 rating 25 A with auxilary contact 2NO + 2NC, cat No - SS90921 Make- L&T/Legrand

S&F in replacement Power contactor 3 pole Type 1.5 ML AC 3 rating 25 A with auxilary contact 2 NO + 2 NC, Cat No - SS91851. Make- L&T/Legrand

M&L in replacement Power contactor 3 pole Type MNX 12 AC 3 rating 32 A with auxilary contact 2NO + 2NC. Make- L&T/Legrand

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

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 by Engr-in-Charge.

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

Made out of 22 Gauge

S&F in replacement of high pressure/Low pressure cutout for R-22. complete all specified and directed by Engr-in-Charge Make:- Danfoss or equivalent ISI Marked.

S&F in replacement of Oil pressure cutout for R-22. complete all specified and directed by Engr-in-Charge Make Danfoss or equivalent ISI Marked.

S&F in replacement of Solonoid Valve for AC plant of Cap upto 80 TR complete all specified and directed by Engr-in-Charge

S&F in replacement of Safety relief Valve for AC plant of Cap upto 80 TR complete all specified and directed by Engr-in-Charge

M&L in replacement of PCB contoller panel with display unit complete with necessary mounting, contactor, wiring kit, thimble, contact complete suitable for existing AC Plant cap upto 100 TR, PCB model No WCUS1015A complete all as specified and as directed by Engr-in-Charge Make :- Blue star or equivalent 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 by Engr-in-Charge

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 by Engr-in-Charge Make- Dass pass or equivalent ISI Marked.

M&L in replacement compressor Strip heaters of cap 1.5KW, 240 Volt Ac 50 Hz single phase complete all as specified and directed by Engr-in-Charge. Make- Dass pass or equivalent ISI Marked.

M&L in replacement Aluminium sprinkler 3'x63mm with necessary mounting complete suitable for existing cooling towers,complete all as specified and as directed by Engr-in-Charge

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 as directed by Engr-in-Charge

Taking out the U/S 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. All as specified and directed by Engr-in- charge. (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.49 above but motor capacity 5 HP

All as per srl item no. 49 above but motor capacity 3 HP

All as per srl item no. 49 above but motor capacity 2 HP

Opening of pump 7.5 HP centrifugal for repair and replacement of following u/s parts including re-fixing of all the same and testing and commissioning complete all as directed.

All as per srl item No 50 above but 5 HP

All as per srl item No 50 above but 3 HP

Replacement of gun metal impeller for 03 HP

S & F in replacement of water pump self priming regenerative .5 HP single phase voltage range 180 V-260, frequency range 50 Htz Max head 21 mtrs, max discharge 1950 LPH complete all as specified and directed by Engr-in-Charge. Make Crompton,Havells,kirlosker.

Taking down the unserviceable MCB and replace same MCB TP 63 Amp, 415V, 10 kA complete all as specified and directed by Eng-In-Charge. Make-Havells, Legrand

M&L in replacement of Rotational moulded polyethylene water storage capacity 2000 L tank (cylindrical vertical with closed top) hoisted and fixed in position all as specified and as directed by Engr-in-Charge. Make- Syntex, Reno, Polycon

Taking down the unserviceable MCB SP and replace the same MCB SP 'C' Curve 6-32 Amp 10 kA complete all as specified and directed by Eng-In-Charge. Make-Havells/Legrand/Schneider

M&L in replacemenbr of filter dryer strainer suitable for central AC plant of various capacities for installation in suction/chiller/liquid line. Make - Danfoss

Repairing and overhauling, 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. Note:-Spare parts/Component will be measured & paid seperately under item no 66 here in below" Model No SM185S4RC of Danfoss or equivalent of Blue Star/Voltas

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

Loder assembly

Gasket sets complete

Tyre coupling with lock

Oil filter

Spring section

Spring ducting

Oil seal

Main Bearing

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 by Engr-in-Charge. Dismantling of existing pipeline and miscellineous work required at site, refixing of all water lines, insulation, check leakage, testing and sensors is deemed to be included in quoted rate by Contractor . Make-Bluestar or equivalent ISI Marked.

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

(a) out door unit condensing/AHU motor's fan blade

(b) V Belt of AHU

(c) canvas cloth for linkage as per existing

(d) Phase sequence corrector

(e) Expansion valve as per existing

(f) Anti freeze thermosat

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

(g) 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 by Engr-in-Charge.

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

M&L in replacement of voltmeter digital type, 415V suitable for existing panel CT operated of range 0-500. 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

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

M&L in replacement of panel mounted ON/OFF push button with contact block. SG/L&T/Selzer

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

M&L for fixing in replacement of butterfly valve with CI body ,SS Disc ,nitrile rubber seal & O ring ,PN 1.6 Pressure rating comlete all as specified by Engr-in-Charge against replacement of the existing one, complete all as specified and as directed by Engr-in-Charge. Make Zoloto/Leader/Castle

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, CGI 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.specified and directed by Engr-in-charge .

supply ,Fixing and testing MS 'C ' Class pipe of size 50 mm all as specified and directed by Engr-in-charge.

All as per item No 70 above but size 65mm dia pipe

M&L for detecting the fault of LT Panel board of AC Plants by providing skilled tradesmen & helper with necessary safety and working equipment such as multimeter ,speedometer and other required tools and rectified the defects including replacement of copper wiring of existing size cable and testing of interlocking system complete all as specified and directed by Engr-in-Charge Note :If the Contractor fail/delay to rectify and replacement of defective parts same day ,they shall fine @1% per day of the quoted rate

Supply,,installation ,testing and commissioning of LT Panel suitable for 3 phase 415 V of suitable size Outdoor type made out of 3.15 mm thick CRCA sheet with angle iron frame of size 50x50x6 mm and base channel of suitable ,cubicle type complete with Air Circuit Breaker ,copper bus bar 600 Amp -04 Nos with IP-54 as per measuring voltage ,current,PF, and phase indicating lamp,ammeter with suitable size of CTs ,voltmeter ,frequency meter including interlocking arrangements for SCBs etc comprising of the following:

(i) MCCB 400 Amp, 4 Pole, 50 KA - 01No (Incoming) i) MCCB 63 Amp 50 Hz,415 V with rupturing capacity 25 KA-02 (ii) MCCB 100 Amp 50 Hz, 415 V with rupturing capacity 25 KA-02 (iii) MCCB 100 Amp 50 Hz,415 V with rupturing capacity 35 KA - 02 Make: Legrand/ Havells/ L&T

Note (i) Vertical height of legs shall not be less than 45 cm from top of nearest road level /PCC Floor Finish .Legs shall be grouted in ground minimum 30 cm I PCC(1:3:6) type C1 (using 20 mm graded crushed stone aggregate) (ii) The Contractor shall produce and get the detailed Drawing(GD) of LT Panel approved by GE through engineer-in-charge before fabrication and placing the order tothe approved manufacturer (iii) MS Frame work shall be painted with two coats of synthetic enamel paint of approved tint over a coat of red oxide primer. (iv) Cost of internal wiring ,MS Frame work,painting a,platform ,MCCB Spreaders ,cable glands ,locking arrangement with Aluminium bolt and any minor addition /alteration required at site (the decision of GE shall be final and binding regarding extent to which the change can be considered as minor addition/alteration )shall be deemed to be included in the quoted rates.

Supply ,fixing in replacement including testing FRP Cooling Tower inducted draft type with motor ,plant of heat rejection capacity 60 Tonnage with FRP Panel as made out with FRP type water basin ,PVC filling with integral louvers and drift eliminator,filled through high density polythene (HDPE) nozzles of having self rotating type sprinklers ,statically and dynamically balanced axial flow fan type fan direct driven with TEFC squirrel cage induction motor ,suction screen ,make up quick fill arrangement ,overflow and drain connections with necessary valves and suitable inspection ladder ,access arrangement for cooling tower interior ,cement concrete platform including necessary foundation ,steel supporting structure,anti-vibration mounting complete all as specified and directed. Make:DELTA/ADVANCE/MIHIR Note:- Unsv cooling tower to be deposited into MES salvage yard.

Schedule of Credit

M/S S.K.Electricals (BID ID -3451241)

V r traders (BID ID -3456286)

Deepak Electricals (BID ID -3447931)

M/s Prakash Enterprises (BID ID -3451393)