SITC of 02 no of Water Cooled Screw Type Chiller of 240 TR having double compressor n 01 n 350Kw Hot Water Generator with all related accessories civil works including buyback at NHAI G 5 n 6 and G 3 sector 10 Dwarka New Delhi 110075

Design Condition -240 TR Evaporator Entering Temperature 12.22 °C Leaving Temperature 6.67 °C Delta T 5.55 °C Flow Rate 36.47 L/s Max Operating Pressure 150 psig (Water Side) Fouling Factor 0.088000 M². Power consumption should not exceed (NPLV) - 0.45 IKW/TR at reducing condenser water temperature as per AHRI 550/590 standard.

Design Condition -240 TR Condenser Entering Temperature 29.44 °C Leaving Temperature 34.61 °C Delta T 5.17 °C Flow Rate 45.90 L/s Max Operating Pressure 150 psig (Water Side) Fouling Factor 0.176000 M².K/kW

Necessary drive arrangement.

Matching shell and tube water cooled condenser of M.S. shell and integrally both side finned copper tubes.

Matching shell & tube flooded type chiller for screw type units of MS shell and integrally both side finned copper tubes

1 Lot – Refrigerant piping fittings, valves and accessories to inter connect compressor, condenser, chiller and expansion valve.The expansion valve shall work on level sensing technology.

1 Set – Microprocessor based control panel (Modbus/bacnet protocol compatible) complete with accessories and inbuilt OEM provided remote monitoring facility for the remote access for the chiller by OEM as per the specification.

Lot – Refrigerant line accessories comprising of safety valves, angle valve, liquid line indications, liquid level control etc.

Lot – Water flow switches at outlet of condenser & chiller, water drain and air purge valves wherever required.

Lot – Suction line and chiller insulation(OEM provided factory installed) with minimum 19 mm thick polyvinyl nitrile rubber insulation complete as required.

Lot –Frame work for mounting the above condenser, chiller compressor and motor with base plate complete with antivibration pads/springs.

Lot – Initial/first charge of refrigerant gas.

Lot – RCC/cement concrete foundation for the chilling unit.

Removal of existing chiller & construction of base as per site

Supplying, erection, testing and commissioning of chilled water pump set of End Suction type, having Cast Iron casing and CI impeller. Pump connected to suitable capacity TEFC ventilated induction motor, IE-3 with class 'F' insulation, 1450 RPM, suitable for 415 volts ± 10%, 3 phase, 50 Hz A.C. supply. Complete pump set system to be mounted on a common MS base frame structure with base plate of pump and shall have following duty and characteristics: Preffered Make: WILO, Xylem, Armstrong, Flowmore, Sam Turbo

2500 LPM, 36 m head

Supplying, erection, testing and commissioning of condenser water pump set of End Suction type, having Cast Iron casing and CI impeller. Pump connected to suitable capacity TEFC ventilated induction motor, IE-3 with class 'F' insulation, 1450 RPM, suitable for 415 volts ± 10%, 3 phase, 50 Hz A.C. supply. Complete pump set system to be mounted on a common MS base frame structure with base plate of pump and shall have following duty and characteristics:

3750 LPM, 30 m head

Supply, Installation, Testing and commissioning of factory built floor mounted chilled water double skin type horizontal/vertical air handling units made of 25mm thick panels consisting of pre plasticized G.I. casing of thickness 0.8mm outside layer and 0.8 mm inside layer with polyurethane foam (PUF) insulation factory injected between them by injection moulding machine, complete with blower section with blower suitable for static pressure as required, minimum 2 bend GSS/PVC eliminators, cooling coil section with aluminium finned copper tubes. tubes thickness not less than 0.5mm) cooling coil of 6 row deep_filter section with 50mm thick metal viscous/ washable synthetic type air prefiters, belt drive package with TEFC drive motor of eficiency class IE3 suitable for 415 t 10% volts, 50Hz, 3 Phase AC supply suitably designed for varialbe frequency drive applications, drain connections, stainless steel (18G) drain pan with PUF insulation, 150 mm dia. dial type pressure gauges (2 nos.) and industrial type thermometers (2 nos.) at the inlet and outlet of coil, auto purge valve wherever required, necessary vibration isolation arrangement etc. complete as per specification and of following capacities. (Total static pressure considered is max. 50 mm wg)

8500 CMH (AHU 10)

15300 CHM ( AHU 3 & 24)

23800 CHM ( AHU 18 & 14)

28900 CHM ( AHU 2,5, 11,13,16,19,23)

Supplying, Fixing, installation, testing and commissioning of supply air diffusers of powder coated aluminium with aluminium volume control dampers with anti smudge ring & removable core in confirmation to SMACNA/IS and as per specifications complete etc. as required.

Supplying, Fixing, installation, testing and commissioning of Return air diffusers of powder coated aluminium without volume control dampers with anti smudge ring & removable core in confirmation to SMACNA/IS and as per specifications complete etc. as required.

Supplying, Fixing, installation, testing and commissioning of thermal insulated flexible duct of following sizes duly supported at regular interval as per site requirement etc. in confirmation to SMACNA/IS and as per specifications complete etc. as required. : 100mm to 200 mm dia

Supplying, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers,supports, bends, transitions, reducers, end caps, collars etc as required complete in all respect in confirmation to IS : 655 and approved drawings and specifications of following sheet thickness complete as required.

Thickness 0.63 mm sheet

Thickness 0.80 mm sheet

Thickness 1.00 mm sheet

Supplying and fixing of following thickness duly laminated aluminium 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 specifications and as required.

Supplying and installing hi-wall mounted industrial cooling unit of size 1 TR for 24x7x365 operation application for high SHR (>0.9) small equipment room application, with high efficiency EC fan with >500 cfm/TR airflow, hydrophilic coated cooling coil, metallic construction complete as required. Preferred makes : Vertiv, Schnieder, Stulz

Supply in installation of Variable Frequency Drive for AHU having capacity of below rated capacity, 460V 3-Phase Input/ 3-Phase Output. Which supports both IM and PM motor control for application flexibility and provides STO safety mechanism. Also built-in various essential functions, including PLC capacity for simple programming needs, a communication slot for various communication cards,and a USB port to make data uploads and downloads fast and easy. Saving space, reducing setup and wiring time, while providing high efficiency and stability system —all included Specifications: Nominal Input VAC: 480 Volts AC Input Range VAC: 380 to 480 Volts AC HP: 20 HP Amps (HD): 32A Amps (ND): 36A Input Phase : 3PH Operator Controls : Sold Seperately, See Accessories Brake Type : DC Injection; Dynamic Braking Motor Control-Max Level: Open Loop Vector-(Sensorless Vector) Closed Loop: NO AC Line Regenerative: NO Dynamic Braking Trans: Included Enclosure Rating: IP20

Supplying Laying and fixing of Following sizes PVC insulated PVC sheathed AL Conductor armoured cable of 1.1 KV grade on surface/recess of wall/existing cable tray etc as reqd.

3.5 C X 185 Sqmm 11KV for chiller make Polycab/ Havells

Supply and Laying of cable tray

Supplying and installaton following size of perforated painted with powder coating M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with two numbers MS/GI Suspenders i/c base of suitable size MS/GI angle, bolts & nuts, painting suspenders, fastener etc as required. 150 mm width X 50 mm depth X 1.6 mm thickness

Supplying and installation following size of perforated painted with powder coating M.S. cable trays bends with perforation not more than 17.5%, joined with connectors, suspended from the ceiling with two numbers MS/GI Suspenders i/c base of suitable size MS/GI angle, bolts & nuts, painting suspenders, fastener etc as required. 150 mm width X 50 mm depth X 1.6 mm thickness

Supplying and installation following size of perforated painted with powder coating M.S. cable trays Tee with perforation not more than 17.5%, joined with connectors, suspended from the ceiling with two numbers MS/GI Suspenders i/c base of suitable size MS/GI angle, bolts & nuts, painting suspenders, fastner etc as required. 150 mm width X 50 mm depth X 1.6 mm thickness

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Supply and installation of Star Delta Starter suitable for 30-40Kw Motor in the existing panel board

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required.

3½ X 185 sq. mm (57mm)

3½ X 50 sq. mm (35mm)

Chilled water piping

150mm dia. (75 mm thick insulation)

100mm dia.(50mm thick insulation)

80mm dia. (50mm thick insulation)

65mm dia.(50mm thick insulation)

50mm dia.((50mm thick insulation)

25 mm dia (50mm thick insulation)

Supply, installation, testing and commissioning of following valves, strainer, gauges(Confirmining to PN 1.6) duly insulated with 24 Kg/Cu mtr density and 50 mm thick Expanded Polystyrene (TF quality) to the same specification as the connected piping and adequately supported as per the specification and as required.

150 mm dia.

80 mm dia

65 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 with protected out pipe insulation & PN 16 pressure rating for chilled / hot water circulation as specified.

150 mm Dia

80 mm dia

65 mm dia

50 mm dia

Y - STRAINER of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation as specified.

150 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 including insulation as specified.

150 mm Dia

Globe/ linear type 3 way modulating valve of following size Preferred make : Siemens/ Honeywell/ Belimo

Modulating thermostat for temperature control (makes same as of 3 way valves)

Supplying, fixing, testing and commissioning of condenser water pipes of following sizes of MS 'C' class along with necessary clamps, vibration isolators and fittings such as bends,tees etc. but excluding valves, strainers, gauges etc. adequately supported on rigid supports duly painted/buried in ground excavation and refilling etc. as per specification and as required complete in all respect. Note:-The Pipes 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

200 mm Dia

Supplying, fixing, testing and commissioning of following valves, gauges and strainers for condenser water circulation as per specifications.

200 mm Dia

BALANCING VALVE WITH BUILT IN MEASURING FACILITY with C I body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled / hot water circulation as specified

200 mm Dia

Y - STRAINER of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation as specified.

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 including insulation as specified.

200 mm dia

Providing and fixing in position industrial type pressure gauges with gun metal / brass valves complete etc. as required. 100mm dial size (Make: H Guru/ANI/GIC)

Providing & fixing in position industrial type mercury thermometers complete etc. as required. (Make: Japsin/Emerald/H Guru)

Providing and fixing of Auto Air Vent-20 mm Dia (Make Anergy/Eqt)

SITC of Electric 350KW Hot water Generator (HWG) Vertical standing made out of 1.6mm steel CRCA sheet duly powder coated. HWG shall be suitable for Indoor installation having Degree of protection IP52 as per IS/IEC: 60947, 10mm shell with 12mm dish end MS sheet with electric fusion welded seams, 50mm thick fibre glass (32kg/cmt) cladded with 0.6mm Aluminum sheet on MS frame welded to generator body, Top open able thick MS flat plate designed for maximum element to water contact for efficient operation, Inlet & outlet pipe with MS flange end and mating flanges, descaling & drain outlets Inlet / Outlet connection : 4 inch Drain connection : 3/4 inch, Flanged Immersion Heaters consisting of multiple tubular heating elements formed into hairpins that are welded or brazed to a pressure rated flange. Electrical resistance type heating elements are capsulated in seamless copper tubes suitable for 240V 50Hz 1 phase supply. HWG should have i) Incomer 630A MCCB TP with electronic grade copper bus bars and mechanical interlock for safe operation. ii) Contactor AC-1 duty Magnetic Contactors with MCB / HBC fuses for heater switching. iii) Temperature Control Micro processor based multistage electronic progressive staging sequencer with thermistor sensor to control the HWG in stages. iv) Wiring Fully factory wired suitable for 415V 3Phase 50Hz supply. Requires only water feed connection and electrical hook up. Temp Inlet : 45°C, Temp Outlet : 50°C, Flow rate : 1004 LPM, Fluid Circulated : Water, Test Pressure : 250 psig, Supply : 415V 3Phase 50Hz, FLA : 487 Amps, No. of Steps : 7 Steps Control Complete technical description as per RFP

SITC of 125 mm dia MS "C' class pipe as per IS: 1239 standard with all necessary clamps, vibration isolators and fittings but excluding valves, stainers, gauges etc.) duly insulated with 80 kg/cum density resin bonded fiber glass or 144 kg/cu density mineral wool (non combustible) pipesection insulation covered with a layer of 120 gm/sqm polythene sheet and finally applying 0.63mm aluminium sheet cladding complete with type 3, grade 1 roofing feltstrip at joints and repairing of damage to building etc. duly insulated (50 mm thick insulation) 125mm dia (Make: KEPL)

SITC of Butterfly valve (manual) with CI body SS disc, nitrile sheet & O- ring PN 16 pressure rating for chilled water/hot water circulation as specified size 125mm dia. With necessary insulation.

SITC of balancing valve 125 mm in dia with built in measuring facility with C I Body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled/hot water circulation , C I Body, Flanged Ends, Size 125mm with necessary insulation.

Supplying of 300mm X 4 core Alluminium FRLS XLPE cable (polycab and Havells only)

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on cable tray as required Above 185 sq. mm and upto 400 sq. mm (clamped with 40x3mm MS flat clamp)

SITC of 300mm width X 50mm depth X 2.0mm thickness perforated painted with power coating M.S cable tray with perforation not more than 17.5% in convenient sections, joined with connectors, suspended from the ceiling with M.S suspenders including bolts and nuts, painting suspenders etc as required.

SITC of 630A 4 pole, 36 KA MCCB with handle and required spreader terminals (siemens, Schnider, ABB or of exisiting make used in panel)

Buyback of old chiller

Buyback of old AHU

Buyback of Old motor, valves, pipes which are changed with new