Installation of AHUs and allied Air Conditioning work at 3rd floor and 2nd floor Balance Work

FLOOR MOUNTED AIR HANDLING UNITS

Assembling, 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) belt drive package with TEFC drive motor of efficiency class IE3 suitable for 415 + 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. The AHU shall be complete with VFD.The VFD shall be of IP20 rating. (As per item no- 16.26 of DSR 2022)

13200 CMH, with mixing box, 6 row deep cooling coil with two stage filtration, 80 mm TSP

6600 CMH, 6 row deep cooling coil with two stage filtration, 80 mm TSP

CEILING SUSPENDED AIR HANDLING UNITS

Assembling, Installation, testing and commissioning of Factory built ceiling suspended chilled water double skin type horizontal/vertical air handling units of following capacity, 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 PVC eliminators, cooling coil section with aluminum finned copper tubes (tubes thickness not less than 0.5mm) cooling coil of 6 row deep two stage filtration belt drive package with Totally Enclosed Fan Cooled (TEFC) drive motor of efficiency class IE3 suitable for 415 ± 10% volts, 50Hz, 3 Phase AC supply suitably designed for Variable Frequency Drive (VFD) applications, drain connections, stainless steel (18G) drain pan with PUF insulation, 150 mm dia. dial type pressure gauges (2 nos.)and industrial type thermometers (2nos.) and industrial type thermometers (2 nos.) at the inlet and outlet of coil, auto purge valve wherever required, necessary vibration Isolation arrangement, noise level shall not exceed 70 dBA. AHU shall be AHRI/Eurovent certified, fan shall be AMCA certified etc. Complete as per CPWD specification/drawings and as directed by Engineer-in-Charge. (Total static pressure considered is max. 50 mm WC). The AHU shall be complete with VFD.The VFD shall be of IP20 rating. (As per item no- 11.1 of DSR 2025 Volume - II)

DUCTABLE FAN COIL UNIT

Supply, installation ,testing and commissioning of Ceiling Concealed Fan Coil Unit comprising of 3 rows deep chilled water cooling coil, centrifugal blowers, fractional horse power (FHP) motor, synthetic fibre filters, insulated & extended condensate drain pan along with L-type auxillary tray, casing, coil piping connections, condensate drain piping connections & wiring. Fan coil units shall be suitable for operation on 220 +/- 6% Volts, 50Hz, single phase power supply of following sizes & capacities. Complete as per CPWD specification and as directed by Engineer-incharge. (As per item no- 11.2 of DSR 2025 Volume - II) considering drain pump, two way mixing valve, ball valve with / without Y stranier & thermostat.

1.0 TR nominal capacity with 400 CFM air quantity.

1.5 TR nominal capacity with 600 CFM air quantity.

2 TR nominal capacity with 800 CFM air quantity.

2.5 TR nominal capacity with 1000 CFM air quantity.

INSULATED CHILLED WATER PIPING (EXPANDED POLYSTRENE INSULATION) IN PLANT ROOM & OUTSIDE OF BUILDING

Supply, laying / fixing, testing and commissioning of following nominal sizes of chilled water piping plumbing inside the building (with nacessary clamp, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with fire retardant quality expanded polystrene moduled pipe section of density 20 Kg/cu.m after a thick coat of cold setting adhesive (CPRX 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 of damage to building etc. as per specifications and as required complete in all respect. Note : - The pipes of sizes 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 350 mm dia and from minimum 7mm thick MS sheet for pipes of 400 mm dia and above. (As per item no- 16.3 of DSR 2022)

100 mm dia (50 mm Thick insulation)

80 mm dia (50 mm Thick insulation)

40 mm dia (50 mm Thick insulation)

25 mm dia (50 mm Thick insulation)

DRAIN WATER PIPING (UPVC SCH-40)

SITC of Drain piping with UPVC (Sch-40) pipes with fittings duly insulated with 13MM thick Nitrile rubber section with suitable solvent including S&F of required fittings such as bends, elbows, flanges, gaskets etc with suitable MS angle iron supporting arrangement with clamps, nut, bolt, washers, vibration isolators etc and scafolding as required to complete in all respect for following sizes : All fixing bolts, double Nuts, different type washers must be of SS304 material to avoid frequent failure with wear & tear due to rust & corrosion.

25 MM dia

WATER LINE VALVES, STRAINERS & ACCESSORIES

Supplying, fixing, testing and commissioning of following valves,strainers, gauges in the chilled water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications.

BUTTERFLY VALVE SITC of Butterfly valve (Manual) with C.I. body SS Disc, Nitrile Rubber seal & O-Ring PN-16 pressure rating for chilled water/hot eater circulation as sepcified. (As per item no- 16.7.1 of DSR 2022)

80 mm dia

40 mm dia

25 mm dia Ball valve

80MM dia

40MM dia

25MM dia

S & F of water Flow Switch

DIAL PRESSURE GAUGE SITC of the following Water line PRESSURE GAUGE as per following categories, sizes and qunatities complete with providing flanges, nut-bolts, gasket and welding arrangements: Bourden type pressure gauges of 100mm dia of suitable range shall be provided.The water pressure gauge shall be made of stainless steel grade SS304. The dial plate shall be powder coated with white colour base & the calibration shall be done in black colour. All the pressure gauges shall be complete with ball valves & SS Siphon and confirming to IS:3624.

THERMOMETER SITC of the following Water line INDUSTRIAL TYPE THERMOMETER, as per following categories, sizes and qunatities complete with providing all fixing accessories: The V form thermometer shall be made of aluminium die casting with golden colour anodizing. The thermometer shall have a V groove in the body to protect the refill from the damages during the installation. The refill shall be filled with blue colour mercury. The thermometer shall be complete with brass well & the calibration of temperature shall be in Celsius & Fahrenheit.

ALUMINIUM DUCT WORK:- Supplying, installation, testing & commissioning of suitable Guages of Aluminium sheet, for supply & return air duct along with necessary supports, flanges etc. as required.

S&F of powder coated extruded aluminium section supply/return air linear grill without volume control dampers as required (as per direction of EIC)

S&F of Fire Retardant type Canvas for AHU mouth connection (as per direction of EIC)

AHU VFD BY-PASS STARTER PANEL FOR OTHER AREAS: Installation, testing and commissioning of wall mounted cubical type LT distribution control panel & VFD Bypass Starter Electrical Panel Board fabricated from sheet steel comprising with following accessories incl. internal wiring earthing & painting. The panel should be constructed as per rating of AHU Motors and provision for two separate circuit (1W+1S) as per direction of EIC (For other areas).

MCCB suitable rating of Incomer & outgoing as per the ratings of AHU motor.

DOL / SD starter as per HP ratings---2 Nos

VFD mode and Bypass mode Starter as per HP ratings --- 2 Nos

Terminal block for power distribution.--- 2 Sets

Power Contactor for Main, Star & Delta, I/P & O/P of VFD, auxilary contractor, over load relay, with inbuilt single phasing protection, control transformer ---- 2 Sets

Phase indicating lights and indicating light for ON , OFF & TRIP status. --- 2 Sets

Wiring for microswitch for stopping the fan of AHU when fire damper closes.

Panel mounted digital Ammeter in 96x96 mm² (AE / HPL) [0 - 50 Amp.]

Panel mounted digital Voltmeter in 96x96 mm² (AE / HPL) [0 - 500 V]

24V, DC relay with 2NO & 2NC auxilary contractor and making necessary provision for interlocking with Fire Detection & Alarm system as per usual fire safety standard --- 1 set

230VAC/24V DC, 2 A SMPS with necessaty wiring --- 1 set

Provision of sufficient space & connectivity for VFD (supplied with AHU)

Danger Board.

Supply & Delivery (at site) of 1.1 KV Grade XLPE insulated and PVC sheathed (Armoured) Aluminium conductor cable conforming to IS: 7098 / 1988 with its latest amendment as per following sizes:

4 Core 35 Sqmm

4 Core 25 Sqmm

4 Core 10 Sqmm

Laying & dressing of 1.1 KV Grade XLPE insulated and PVC sheathed (Armoured) Aluminium conductor cable on prelaid cable trays (as per direction of EIC) as per following sizes:

4 Core 35 Sqmm

4 Core 25 Sqmm

4 Core 10 Sqmm

Supply & Delivery (at site) of 1.1kV Gr. PVC round armouerd copper Control Cable conforming to IS: 694 / 1988 with its latest amendment as following sizes:-

7 Core 1.5 Sqmm

3 Core 2.5 Sqmm

2 Core 2.5 Sqmm

Laying & dressing of 1.1kV Gr. PVC round armouerd copper Control Cable on prelaid cable trays (as per direction of EIC) as per following sizes:

7 Core 1.5 Sqmm

3 Core 2.5 Sqmm

2 Core 2.5 Sqmm

S&Laying of 25 mm NB FR PVC rigid Conduit on wall surface incl S/F all fixing accessories.

S&F of compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of XLPE/PVC armoured cables as below :

4 Core 35 Sqmm

4 Core 25 Sqmm

4 Core 10 Sqmm

7 Core 1.5 Sqmm

3 Core 2.5 Sqmm

2 Core 2.5 Sqmm

Finishing the end of following XLPE/PVC armoured cables/Copper control cable by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials:

4 Core 35 Sqmm

4 Core 25 Sqmm

4 Core 6 Sqmm

7 Core 1.5 Sqmm

3 Core 2.5 Sqmm

2 Core 2.5 Sqmm

S&F of Stranded GI (Hot Dip) wire of size 8 SWG as to GS for earthing continuity.

Providing minor natured civil work like making brick supports/pedestals and making holes/groovs for installation of machineries, pipes and ducts etc. as per following:

Cutting of brick wall by necessary tools & tackles with the help of skilled labour for passing different sizes duct & pipe lines in horizontal run including mending good the damages upto painting with original wall matching colour and removal of rubbish as per direction & prior permission of EIC.

Supply, fabrication, erection of additional MS structural work beyond normal laying for providing special supporting arrangement in hazardous zones in laying Pipes, Ducts, Cables, Cable Trays, Foundations, Structures, Supports, other AC accessories: M.S. works in brackets made from flats, angles, tees etc. to sizes specialy bent, twisted, forged; making holes drilled and fitted to rafter of trusses with necessary bolts, nuts, washer or screws etc. The above structure should be painted 2 coats painting over 2 coats of primer as per direction of EIC.

Installation of FCUs by hanging from 2nos 65X65X6mm MS angle (L shaped) fixed by fasteners / grouted on wall / and hanging from that angle support with 2nos 12mm full threaded downrod fixed with double nut bolts etc as per direction by EIC.

Installation of CS AHU by hanging from 2nos75x40mm MS U channel fixed by grouted on wall and hanging from that support with 2nos 12mm full threaded downrod fixed with double nut bolts etc as per direction by EIC.

Dismantling of existing Dx units incl of all ODUs and AHUs, Window/Split AC machines incl of all accessories installed at 3rd Floor & 2nd floor only. And mending good the damages.

TERMS & CONDITIONS :- The Agency must procure the materials from the Manufacturer / OEM or from their authorised sales channel so that the standard warranty / support of the Manufacturer / OEM becomes applicable to the products to be delivered and installed by them. Documents that authenticates such procurement from the Manufacturer / OEM or from their authorized sales channel and standard warranty / support should be sent from the e-mail of the Manufacturer / OEM / authorized sales channel to the e-mail of Engineer-in-Charge and hard copy of it to be submitted during execution, of work/ submission of bill. If any refurbished material is supplied and installed, penal action will be taken as per existing rules

Defect Liabibility Period 1 (One) year

Less Cost: Dismantled Dx units incl of all ODUs and AHUs, Window/Split AC machines incl of all accessories installed at 2nd and 3rd Floor only. Rs 550000.00

Make & model of each and every material to be approved by EIC

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