Renovation of buildings in Air India Complex at Safdarjung Airport, New Delhi to be used for AAI offices for the year 2023 24. SH Replacement of Water Cooled Chillers, Cooling Tower, Hot Water Generator and associated works

Amount

Supply, Installation, Testing and Commissioning minimum 4 star Rated with ISEER 7.41, AHRI certified Water Cooled Screw type chilling machine with semi-hermetic screw type compressor having a minimum capacity of 150TR (actual) at chilled water inlet/outlet temperature of 6.67°C/12.2°C with chilled water circulation rate of 360 USGPM (nominal) and condenser water inlet/outlet temperature of 32.2°C/36.4°C with circulation rate of 600USGPM(nominal) ,suitable for operation on refrigerant R-134a comprising of shell & tube condenser and evaporator with flooded/hybrid falling film/falling design having factory insulation for cold part of chiller with descaling drain valves, flanged / victolic coupling pipe joints, automatic and safety controls mounted in central micro-processor based console panel, along with thermal insulations, anti vibration pads, flow switch at chiller & condenser and required accessories, integral refrigerant piping and wiring, factory fitted unit mounted VFD with Active Harmonic Filter (ThDi<= 5% at full load ) , automatic and safety controls mounted in central micro-processor based console panel, machine mounted panel, incomer switchgear with terminations box suitable for electrical termination with aluminium conductors cable, earth terminations and all mounted on a steel frame etc, complete as per specifications and drawings. The unit must be complete with Refrigerant piping fittings, valves and accessories to inter connect compressor, condenser, chiller and expansion valve ,Water flow switches at outlet & inlet of condenser & chiller. water drain valve & air purge valves complete as required .The make of compressor shall be same as make of the chiller OEM & pressure vessel of chiller shall be ASME 'U' stamped. Note -The Quoted Price shall include the Following - i-First charge of Refrigerant and lubrication oil. ii-3rd party BMS interface unit with MODBUS / BACnet over IP or any open protocol with RS 485 port. iii-FLanges for Condenser & Evaporator. iv-Freight loading unloading up to point of Installation at First floor of buillding, foundation as per OEM recommondation and minor civil as specified in specical condition of contract.

Actual Capacity (Min.) -150 TR Chilled Water In -12.2 degree C Chilled Water Out -6.67 degree C Chiller Fouling Factor -0.0005 (FPS) Max permissible pressure drop -10 m of water head Condenser Water In -32.2 degree C Condenser Water Out -36.4 degree C Condenser Fouling Factor -0.001 COP MINIMUM at AHRI condition -5.67 IPLV at AHRI condition -0.39 KW/TR NPLV at AHRI condition -0.42 KW/TR IKW/TR -0.76 MAX Star Rating & ISEER - minimum 4 Star with ISEER 7.41

AUTOMATIC TUBE CLEANING SYSTEM Supply, Installation, Testing and Commissioning of Automatic tube cleaning system consisiting of injector ball,trap drain valve,injection valve,manual ball valves,check valve,darin container and PLC control panel suitable for electrical supply of single phase supply 230+/-10 % 50 HZ system with cleaning rate of every 30 to 40 min automatic cleaning of condersor tubes during opeartion of chiller tubes and contain a pump of suitable capacity to ensure suuficient diiferential pressure at inlet and outlet side of condendser sutitable for opeartion of 01 No. 150 Tr chiller as per detailed specification and requirements. Note -1- Make of Automatic Tube cleaning System shall be as per OEM recommondation. 2-Quoted price shall be inclusive of freight loading unloading up to point of Installation at First floor and foundation as per OEM recommondation.

CHILLED WATER PUMP- Supply, installing, testing & commissioning of End-Suction Back pull out Top Discharge Horizontal Centrifugal Chilled Water Pumps (IE3) complete with CI Casing, bronze impeller ,stainless steel shaft, bronze or gun metal shaft sleeve with mechanical shaft seals , base frame , coupling guard ,spring mount,rubber flexible connections (PN-16) at suction and discharge, coupling guard , foundation bolts, Mounting frame with Anti vibration pads and directly coupled to continuous duty TEFC squirrel cage induction motor of efficiency class minimum IE3 (as per IS 12615) having class 'F' insulation suitable for operation on 415 V +/- 10%, 3 phase, 50 Hz AC supply for re-circulation of water for the central air conditioning system with VFD ( Cost of VFD along with control cable shall be considered in item No. 24 i.e Main HVAC -Panel). The Pump and Motor shall be mounted on a common MS base frame/ channel & complete in all respect as per specification. a-Water Flow Rate - 360 USGPM b-Head - 23 M c-Efficiency - 75% or more Note -Quoted price shall be inclusive of freight loading unloading up to point of Installation at First floor and foundation as per OEM recommondation.

CONDENSAR WATER PUMP- Supply, installing, testing & commissioning of End-Suction Back pull out Top Discharge Horizontal Centrifugal Condensor water Pumps (IE3) complete with CI Casing, bronze impeller ,stainless steel shaft, bronze or gun metal shaft sleeve with mechanical shaft seals , base frame , coupling guard ,spring mount, rubber flexible connections (PN-16) at suction and discharge, coupling guard , foundation bolts, Mounting frame with Anti vibration pads and directly to coupled continuous duty TEFC squirrel cage induction motor of efficiency class minimum IE3 (as per IS 12615) having class 'F' insulation suitable for operation on 415 V +/- 10%, 3 phase, 50 Hz AC supply for re-circulation of water for the central air conditioning system. The Pump and Motor shall be mounted on a common MS base frame/channel & complete in all respect as per specification. Water Flow Rate - 600 USGPM Head - 28 M Efficiency - 75% or more Note -Quoted price shall be inclusive of freight loading unloading up to point of Installation at First floor and foundation as per OEM recommondation.

Cooling Tower - Supplying, Installation, Testing and Commissioning of induced draft counter flow type FRP cooling tower of 150 TR heat rejection capacity with FRP water basin, PVC fills with integral lovuers ,drift eliminators complete with water basin fitted with spray nozzles having self rotating sprinklers, statically and dynamically balanced with direct driven axial fan , fitted with IP55 continuous duty TEFC induction motor (minimum IE3) & compatible for opeartion with VFD & suitable for operation on 3 phase, 415+/- 10% V, 50 Hz, AC supply .The unit shall be complete with suction screen, make up-quick fill arrangement, overflow and drain connections along with necessary valves & flanges ,steel inspection ladder sutitable to cater weight of 120 kg ,access arrangement for cooling tower interior ,steel / masonary supporting structure upto base channel , anti-vibration mountings etc complete as per specifications. Cooling Capacity - 150 TR Flow Rater -600 USGPM Hot Water ‘IN’ temperature - 36.4 deg C Hot Water ‘OUT’ temperature - 32.2 deg C Note -Quoted price shall be inclusive of freight, loading unloading up to point of Installation at First floor terrace .

HOT WATER GENERATOR - Supply, installation, testing & commissioning of indoor package type Electric Hot Water Generator constructed from minimum 8 mm MS sheet for Tank Shell & minimum 10 mm for Dish-Ends with factory wired electrical panel suitable for operation on 3 phase, 415+/- 10% V, 50 Hz, AC supply complete with all accessories .The heating elemement shall be Electric immersion water resistance type with copper tube & chromium plating having top / front openable cover for easy access and removal of heaters. Hot Water Generator tank shall have minimum 50 mm thick resin bonded fibre glass wool insulation of density 32 kg/m3 finished with minimum 0.8 mm aluminum cladding sheet on MS frame welded to generator body. The generator shall be complete with Main & auxillary stop Valve,Balancing valve ,automatic air vent ,preesure release valve,water flow switch, pressure gauge with ball valve, thermostats, door switch ,drain point with valve, Descaling valve,rubber flexible connections at suction and dischargecomplete as per attached specification. The Electric panel shall be complete with suaitable rating incoming MCCB , ammeter, voltmeter,on/off Toggle swith for operation of individual bank, auto/manual switches ,Phase & fault indicating lamp,On,Off & trip indication lamps for individual bank,audio & visual Alarm for High & Low warter temperature ,contactors for heater banks in min. 3 or 6 steps with Micro processor based multistage electronic progressive staging controller . Heater Bank to be provided with minimum 01 steps of 50 KW on each phase or 02 steps of 25 Kw on each phase .The unit shall be BMS compatible with RS 485 comunication port complete in all respect and shall be factory tested at 250 PSI Test pressure & 100 PSI working preesure complete as per attached specification. Capacity - 150 KW Flow Rater -110 USGPM Hot Water ‘IN’ temperature - 45 deg C Hot Water ‘OUT’ temperature - 50 deg C Water Holding Capacity Minimum -170 Liter Note -Quoted price shall be inclusive of foundation as per OEM recommondation and loading Freight unloading up to point of Installation in basement .

Chilled water Piping Supplying, laying/ fixing, testing and commissioning of following nominal sizes of chilled water piping inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with following closed cell elastometric nitrile rubber of minimum 45 Kg / cu desity, Thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class 'O' insulation applied by suitable adhesive complete with aluiminium clading of 0.63mm including repairing of damages to building as required complete in all respect. Pipe shall be Adequately supported on C-Channel of size ( 75*40*5*7) MM or on ground or on RCC pedistal support or on wall/roof with necessary clamps, vibration isolators and fittings as per site requirement ,duly painted complete in all respect as per specification. The Pipes of sizes 150mm & below shall be M.S. 'C' class as per IS : 1239 and Pipes size above 150 mm shall be welded black steel pipe heavy class as IS: 3589, from minimum 6.35 mm thick M.S. Sheet for pipes upto 350 mm dia. and from minimum 7 mm thick MS sheet for pipes of 400mm dia and above. Note -Quoted price shall be inclusive of Freight , loading ,unloading up to point of Installation .

200 MM (32 MM thick Insulation)

150 MM (32 MM thick Insulation)

Condenser Water Piping Supplying, fixing, testing and commissioning of condenser water pipes of following sizes of along with necessary clamps, vibration isolators and fitting such as bends, tees etc. But excluding valves, strainers, guages etc. Pipe shall be Adequately supported on C-Channel of size ( 75*40*5*7) MM or on ground on RCC pedistal support or on wall/roof with necessary clamps, vibration isolators and fittings as per site requirement ,duly painted complete in all respect as per specification. The pipes of size 150mm & below shall be M.S. 'C' class as per IS : 1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from minimum 6.35mm thick M.S. sheet for pipes upto 350mm dia. And from minimum 7mm thick MS sheet for pipes of 400mm dia and above. Note -Quoted price shall be inclusive of Freight , loading ,unloading up to point of Installation .

300 MM Dia

200 MM Dia

100 MM Dia

50 MM Dia

INSULATED VALVES: Supplying, fixing, testing and commissioning of following valve duly insulated with closed cell elastometric nitrile rubber of minimum 45 Kg / cu desity, Thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class 'O' insulation applied by suitable adhesive complete with aluminium cladding of 0.63 mm including repairing of damages to building etc. as required complete in all respect as per specification. Note -Quoted price shall be inclusive Freight , loading ,unloading up to point of Installation . Motorized Butter fly valves with CI body, SS disc, O-ring and minimum PN-16 pressure rating, conforming to BS 5155, IS 13095, with IP-55 actuator, capable of accepting upto 10V DC, and and upto 20mA electric signal from BMS and providing similar transduced feedback output to BMS contol system complete as required as per specification .

150 MM dia

BUTTERFLY VALVE (MANUAL) with C I body SS disc nitril sheet & O - ring & PN 16 pressure rating as complete as required as per specification .

300 mm dia

200 mm dia

150 mm dia

BALANCING VALVE WITH BUILT IN MEASURING FACILITY with C I body flanged construction with EPDM coated disc with long pitch / hot water circulation complete as required as per specification .

NON - RETURN VALVE with duel plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating for chilled / hot water circulation complete as required as per specification.

150 mm dia

Y - SRTAINER of Ductile CI Body, flanged ends with stainless steel strainer for chilled / hot water circulation complete as required as per specification .

150 MM dia

UNINSULATED VALVES: Supplying, fixing, testing and commissioning of following valve without insulation for condenser water circulation complete in all respectas as per specification. Note -Quoted price shall be inclusive Freight , loading ,unloading up to point of Installation. Motorized Butter fly valves with CI body, SS disc, O-ring and minimum PN-16 pressure rating, conforming to BS 5155, IS 13095, with IP-55 actuator, capable of accepting upto 10V DC, and and upto 20 mA electric signal and providing similar transduced feedback output to contol system complete as required.

200 mm dia

BUTTERFLY VALVE (MANUAL) with C I body SS disc nitril rubber seal sheet & O - ring PN 16 pressure rating complete as required as per specification .

300 MM Dia

200 MM Dia

80 MM Dia

50 MM Dia

BALANCING VALVE WITH BUILT IN MEASURING FACILITY with C I body flanged construction with EPDM coated disc with long pitch for cold / hot water circulation as specified as per specification .

200 MM Dia

NON - RETURN VALVE with duel plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating for chilled / hot water circulation as per specification .

200 MM Dia

Y - SRTAINER of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation as per specification .

200 MM Dia

Suppling, fixing, testing and commissioning of following sizes Pot Strainer with SS 304 double mesh Flanged End flanges and all other required accessaries complete in all respect as required at site as per specification .

300 MM Dia

Suppling, fixing, testing and commissioning of of following Dial Type Gauge with suitable sipon & ball valve of Range 0-10 Kg/cm2 & Dial Size 100mm. as per technical specification.

Glycerin Filled Pressure Gauge

Temperature Gauge

Suppling, fixing, testing and commissioning of Brass body Auto air vents of 15 mm dia fitted with 15 mm dia Forged Brass Chromium plated body ball valve complete as required.

Suppling, fixing, testing and commissioning of Rubber Bellow of following size for Chillers Evaporator, Chillers Condenser, with Control Guide Assembly suitable for upto 20 kg/cm2 pressure complete as per tender specification.

150 MM 50 MM with 25 mm closed cell elastometric nitrile rubber of minimum 45 Kg / cu desity, Thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class 'O' insulation applied by suitable adhesive complete as per specification .

Supply, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangaular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawing and specifications of following sheet thikness complete as required.

Thikness 0.63 mm sheet

Thikness 0.80 mm sheet

Thikness 1.00 mm sheet

Supplying and fixing of following thikness duly laminated aluminum foil of mat finish closed cell Nitrile rubber (class 'O') insulation on existing duct after applying suitable adhesive for Nitrile rubber. The joints shall be sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation complete as per specification and as required above valves should have pressure rating of 25 Bar minimum.

Supplying & fixing of powder caoted extruded aluminium Supply Air Grill with aluminium volume control dampers as per specifiction.

Supplying & fixiing of powder coated extruded aluminium Return Air Grills with Louvers but without volume control danpers complete as required.

Supplying, fixing testing commissioning of Supply air diffusers of powder coated aluminium with aluminium volume control dampers with anti smudge ring & removable core.

Supplying, fixing testing commissioning of Return air diffusrs of powder coated aluminium without volume control dampers with anti smudge ring & removable core.

Supply, istallation, testing and commissioning of GI volume control duct damper complete with neoprene rubber gaskets, nuts, bolts, screws linkages, flanges etc. as per specification.

Supplying, Fixing testing commissioning of fire dampers in supply air duct/main branch and return air path as and where required of required sizes i/c control writing, the damper shall be motorized and spring return so as close the damper in the event of power failure automatically and open the same in case of power being restored. The spring return action shall be inbuilt mechanism and not externally mounted. The damper shall also be closed in the event of fire singal and compataible with BMS complete as required and per specifications.

Fire damper

Actuator

Supplying, laying,fixing of following thickness insulation with fire retardant quality expanded polystrene moulded pipe section of density 20 kg/cu.m after a thick coat of cold setting adhensive (CORX compound) wrapping with 500g polythene faced hessain and finally applying 0.63mm aluminium sheet cladding complete with type3, grade 1 roofing feltstrip (as per IS : 1322 as amended up to date ) at joints repairing etc. as per specification and as required complete in all respect.

Supply, Installation, Testing and Commissioning of cubicle type Totally Type Tested assemblies as per 61439-1 & 61439-2 , suitable for 415V+/-10%, 3 Phase, 4 wire 50 Hz AC supply system, fabricated in compartmentalized 4b modular design IP 42 from CRCA sheet steel of 2 mm thick for frame work and covers, 3 mm thick for gland plates i/c cleaning & finishing complete with 9 tank process for powder coating in Siemens Grey shade having TPN Aluminium alloy bus bars for high conductivity, SMC bus bar supports,with short circuit withstand capacity of 50 KA for 1 sec , bottom base of C -channel of size not less than (100 *50*5*7.5) MM, fabrication shall be done in transportable sections, entire panel shall have a common GI earth bar of size 50 mm x 6 mm at the rear with 2 Nos. earth stud, solid / flexible connections from main bus bar to switchgears and from switchgear output to cable termination in cable alley with required size of AL conductors / bus bars and control wiring with 2.5 sqmm PVC insulated copper conductor cable (FRLS), cable alleys, cable gland plates in two half,Space heater with thermostat & inspection led Lamp with door switch in each compartment i/c providing following switchgears / accessories as per specifications. Note-The Panel shall have Internal arc withstand capacity of 50 KA for 0.3 sec as per IEC-61641. INCOMER - 02 Nos ACB 800 A, 50 kA, 4 Pole with Microprocessor release Horizontal drawout type of fault breaking capacity 50KA (Ics=lcu=Icw) Electrical Draw Out Motorised operated, fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/ test/isolated position indicators and frame earthing contact, conforming to IS-13947-2 1993 as amended up-to-date complete with Independent Electrical & manual spring closing mechanism, Microprocessor release (EMI & EMC certified LSIG release) for over current, short circuit & earth fault protection, Shunt trip coil 24V D.C / 220V A.C, Breaker Control Switch - 16A, Test terminal block set, circuits as per standard practice, auxiliary contactors with contacts (minimum 4NO+4NC) for positive interlocking of the breakers, necessary interlocking with PLC auto controls with all protection i/e Earth fault, Under & Over Voltage, Under & Over Frequency, Current Unbalance, etc. and Real-time on-line display of measurements, Current : phase / neutral / earth, average, max, % loading, Voltage : Phase, Line and with RS 485 communication port facility etc. Each Incomer shall have one set of the following items: 1- 1 Set of LED type Phase (R,Y,B) indicating lamp with 2 Amp MCB for controling. 2-1 Set of LED type Indication Lamps for breaker 'ON' , 'OFF', 'TRIP' & spring charged with 2 Amp MCB for controling. 3- 01 No. Intelligent multi function digital meter to read V,A,kVA, KW, kVAR, PF, Hz etc with RS485 port communication facility and LED display with required Nos CTs of rating 800/5 A , 15 VA, class 1.0 and control circuit wiring with 2 Amp MCB for controling % THD and individual order Harmonics upto 15th order. 4-Accessories for Electrical Interlocking

Bus Coupler 800 A, 50 kA, 4 Pole, (EDO) Air Circuit Breaker Horizontal drawout type of fault breaking capacity 50KA (Ics=lcu =Icw) upto 433V, Electrical Draw Out Motorised operated,Independent Electrical / manual spring closing mechanism fitted with interlocked door, automatic safety shutters, mechanical ON/OFF and service/ test/isolated position indicators and frame earthing contact, conforming to IS-13947-2 1993 as amended up-to-date complete with neccessary Auxillary contact & MCB as per specification. Bus Coupler shall have following items: 1- 3 Sets of LED type Indication Lamps, for RYB with 2 Amp control MCB. 2- Breaker 'ON' , 'OFF', & spring charged Indication Lamps with 2 Amp MCB for controlling. BUS BAR TPN aluminium extensible type main bus bars of minimum of 800 Amps. capacity with heat shrinkable coloured sleeves and i/c DMC/SMC bus bars supports at required intervals complete for cross section, size supports & their spacing etc. for withstanding fault level of 50kA capacity for 1 sec. OUTGOINGS For chillers - 03 Nos. 250 A, 4P, 50 kA MCCB with adjustable setting , microprocessor release with in built O/L, S/C & E/F protection, RS485 module for communication. For Hot Water Generator - 03 Nos. 250A, 4P, 50 kA MCCB with adjustable setting , microprocessor release with O/L, S/C & in built E/F protection, RS485 module for communication. For Main AHU Panel - 02 Nos.400 A, 4P, 50 kA MCCB with adjustable setting , microprocessor release with O/L, S/C & in built E/F protection, RS485 module for communication. Spare Feeder- 02 nos. 250 Amp FP 50 KA MCCB with adjustable setting thermal magnetic release for O/L ,S/C & E/F protection. 02 nos. 100 Amp FP 50 KA MCCB with adjustable setting thermal magnetic release for O/L ,S/C & E/F protection. 02 nos. 63 Amp FP 50 KA MCCB with adjustable setting thermal magnetic release for O/L ,S/C & E/F protection.

Supply, Installation, Testing and Commissioning of cubicle type Totally Type Tested assemblies as per 61439-1 & 61439-2 , suitable for 415V+/-10%, 3 Phase, 4 wire 50 Hz AC supply system, fabricated in compartmentalized 4b modular design IP 42 from CRCA sheet steel of 2 mm thick for frame work and covers, 3 mm thick for gland plates i/c cleaning & finishing complete with 9 tank process for powder coating in Siemens Grey shade having TPN Aluminium alloy bus bars for high conductivity, SMC bus bar supports,with short circuit withstand capacity of 35 KA for 1 sec , bottom base of C -channel of size not less than (100 *50*5*7.5) MM, fabrication shall be done in transportable sections, entire panel shall have a common GI earth bar of size 50 mm x 6 mm at the rear with 2 Nos. earth stud, solid / flexible connections from main bus bar to switchgears and from switchgear output to cable termination in cable alley with required size of AL conductors / bus bars and control wiring with 2.5 sqmm PVC insulated copper conductor cable (FRLS), cable alleys, cable gland plates in two half,Space heater with thermostat & inspection led Lamp with door switch in each compartment i/c providing following switchgears / accessories as per specifications. Note-The Panel shall have Internal arc withstand capacity of 35 KA for 0.3 sec as per IEC-61641. INCOMER - 02 Nos . 400A, 4P, 50 kA MCCB with adjustable setting , microprocessor release with O/L, S/C & in built E/F protection, RS485 module for communication. Each Incomer shall have one set of the following items: 1- 1 Set of LED type Phase indicating lamp with 2 Amp MCB for controling. 2-1 Set of LED type Indication Lamps for breaker 'ON' , 'OFF', 'TRIP' & spring charged with 2 Amp MCB for controling. 3- 01 No. Intelligent multi function digital meter to read V,A,kVA, KW, kVAR, PF, Hz etc with communication facility (RS485 port) and LED display with required Nos CTs of rating 400/5 A , 15 VA, class 1.0 and control circuit wiring with 2 Amp MCB for controling % THD and individual order Harmonics upto 15th order. 4-Accessories for Electrical Interlocking. Bus Coupler 01 Nos . 400A, 4P, 50 kA MCCB with adjustable setting , microprocessor release with O/L, S/C & in built E/F protection, RS485 module for communication. 01 Set of LED type Phase indicating lamp with 2 Amp MCB for controling. 01- Set of LED type Indication Lamps for breaker 'ON' , 'OFF', 'TRIP' & spring charged with 2 Amp MCB for controling.

20 HP Star Delta starter for AHU

15 HP Star Delta starter for for AHU

Design, manufacture , supply , installation, testing and commissioning of control desk made up of 2 mm thick CRCA sheet for operating / controlling a minimum of 03 Nos. Chiller , 03 Nos Chilled water pumps , 03 Nos condensor pumps , 03 Nos CT FAN ,08 nos. AHU's & 04 nos. FCU's with suitable indication LED lamps with color coding, Start / Stop push buttons,Phase indication lamps, ON / OFF / TRIP Indication lamps including suitable MCB's, relays, auxilary relay cards, hooter, reset push button, Inspection lamps with door switch, space heater with thermostate, necessary control terminals, etc. with necessary control wiring of not less than 2.5 Sqmm from Main HVAC Panel to control desk with flexible SS conduit as required at site. However any wiring required from AHU to control panel will be paid seperately after accessing the existing cables/wires available at site. All the control cables / wires should have proper entry inside Control panel through suitable glands etc. to prohibit the entry of rodents, insects etc.

Dismantling of existing 02 Nos chillers of capacity 110 TR (Kirloskar-Make) along with associated piping (evaporator and condenser in & out lines upto main header) from Air India Building first Floor including the base frame, cleaning of site for installation of new chiller against Item No. 1 complete in all respect as required and shifting the entire dismantle material into AAI store within lead of 1000 metres as per the direction of EIC. The scope covers the hiring of Crane & JCB and making suitable opening by widening of existing door & window without damaging the existing column / beam/ any other load bearing structure, including removing and refixing the door / window frame, brick wall, etc. for reinstallation. In case of any damage to the existing structure, the agency will repair the existing structure upto the satisfaction of AAI Civil Engineer .

Dismantling of existing 04 Nos. cooling tower of capacity 150 TR (Paharpur-Make)along with associated piping including main headers from Air India Building terrace floor without affecting the base frame including cleaning of site for installation of installed the new cooling tower against Item No-5 and shifting the entire dismantle material into AAI store within 1000 metres as per the direction of EIC. Scope covers hiring of machine & labour for dismantling / shifting to store without damaging the existing MS structure and other related works to complete the job as per satisfaction of EIC. In case of any damage to the existing structure, the agency will repair the existing structure upto the satisfaction of AAI Civil Engineer .

Dismantling of existing 04 Nos. chilled water pumps & 04 Nos. Condenser water pumps along with suction and dishcharge pipe from main header from Air India Building first Floor including the base frame and foundation, cleaning of site for installation of new pumps against item no 3 & 4 complete in all respect as required and shifting the entire dismantle material into AAI store within lead of 1000 metres as per the direction of EIC. The scope covers the hiring of Crane / JCB etc. In case of any damage to the existing structure, the agency will repair the existing structure upto the satisfaction of AAI Civil Engineer.

Dismantling of existing 01 no. Main HVAC panel from Air India Building first floor i/c the base channel including cleaning of site to installed installed the new Panel base frame against item no 24 complete in all as required and shifting the entire dismantle material into AAI store within 1000 metres as per the direction of EIC. Scope covers hiring of machine & labour for dismantling / shifting to store without damaging the supporting structure and other related works to complete the job as per satisfaction of EIC. In case of any damage to the existing structure, the agency will repair the existing structure upto the satisfaction of AAI Civil Engineer.

Dismantling of existing 01 no. AHU panel from Air India Building block ground floor i/c the base channel including cleaning of site to installed the new Panel base frame against item no 25 complete in all as required and shifting the entire dismantle material into AAI store within 1000 metres as per the direction of EIC. Scope covers hiring of machine & labour for dismantling / shifting to store without damaging the supporting structure and other related works to complete the job as per satisfaction of EIC. In case of any damage to the existing structure, the agency will repair the existing structure upto the satisfaction of AAI Civil Engineer.

Dismantling of existing 08 Nos. WallMounted AHU starter panel from Air India Building block including cleaning of site to installed the new starter complete in all as required and shifting the entire dismantle material into AAI store within 1000 metres as per the direction of EIC. Scope covers hiring of machine & labour for dismantling / shifting to store without damaging the supporting structure and other related works to complete the job as per satisfaction of EIC. In case of any damage to the existing structure, the agency will repair the existing structure upto the satisfaction of AAI Civil Engineer.

Supply of 1.1 KV grade aluminium conductor XLPE insulated PVC sheathed armoured cable as per IS 7098 Part-I as amended upto date as per site requirement: 3 core 25 Sq.mm

Supply of 1.1 KV grade aluminium conductor XLPE insulated PVC sheathed armoured cable as per IS 7098 Part-I as amended upto date as per site requirement: 3 core 35 Sqmm

Supplying and making end termination with brass compression gland and aluminium lugs for size of 3 x 25 sq.mm (25 mm) PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 kV grade as required.

Supplying and making end termination with brass compression gland and aluminium lugs for size of 3 x 35 sq.mm (28 mm) PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 kV grade as required.

Laying & fixing of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of following size on wall surface as required Upto 35 Sqmm (Clamped with 1mm thich saddle )

Laying & fixing of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of following size on cable tray/Channel as required. Upto 35 Sqmm (Clamped with 1mm thich saddle )

Supply and making end termination using Brass Double compression gland & aluminium lugs for size of PVC insulated PVC sheathed/XLPE alulinium conductor calbe of 1.1 KV as required

3.5 x 300 Sqmm (70 MM )

3.5 x 150Sqmm (50 MM )

3 x 120 Sqmm (45 MM )

Execution of works as per CPWD Delhi Schedule of rate (Electrical ) 2022 and specification. Note: Rate shall be quoted in the Indian Rupees on the basis of percentage calculation of quoted amount as clarified below: For example: "if desired to quote 5% above on DSR-2022 rates, the rate column shall be filled as Rs.2,10,000/-. If desired to quote 5% below on DSR-2022 rates, the rate column shall be filled as Rs. 1,90,000/-) "

Providing All inclusive comprehensive maintenance services (preventive & breakdown) for 150TR water cooled screw chillers including attending breakdown, check/repair/overhaul the Chiller equipments as per special condition of Contract. Job also includes to replace its worn out parts as recommended by OEM, replenishing refrigerant, testing & replacing of compressor oil as per manufactures recommendation etc as required and as specified in special conditions of contract.

First year after expiry of DLP Period ( Fixed Cost i.e. 3 % of SITC Cost against item no. 1)

Second year after expiry of DLP Period ( Fixed Cost i.e. 5% Increment on 1st year Cost)

Third Year after expiry of DLP Period ( Fixed Cost i.e. 5% Increment on 2nd year Cost)

Forth Year after expiry of DLP Period ( Fixed Cost i.e. 5% Increment on 3rd year Cost)

Fifth Year after expiry of DLP Period ( Fixed Cost i.e. 5% Increment on 4th year Cost)

S G TECHNOFAB PVT LTD (BID ID -767352)

Skyline Airconditioning Engineers Pvt. Ltd. (BID ID -771481)

SNOWMEX ENGINEERS LIMITED (BID ID -767236)

PROFIS ENGINEERS PVT LTD (BID ID -767526)

CONSENSUS INDUSTRIAL SOLUTION (BID ID -771670)