Provision of Chilled water Air conditioning system for UPS room of AB-5 and 6 and Addition and alteration in AB-5-209 lab at Indian Institute of Technology Gandhinagar.

Amount

Machinery: Supply, Installation, Testing, and commissioning of factory-built Ceiling Suspended chilled water double skin type horizontal/vertical, plug drive type, air handling units made of 25mm thick panels consisting of pre plasticized G.I. casing of a 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 aluminum finned copper tubes (tubes thickness not less than 0.5mm) cooling coil of 4/6 row deep, filter section, MIXING CHAMBER with 50mm thick metal viscous/ washable synthetic type air prefilters with fine filter for 0.5 micron capacity, Plug fan package with TEFC drive motor of efficiency class IE3 suitable for 415 ± 10% volts, 50Hz, 3 Phase AC supply suitably designed for variable 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.

3500 CFM / 7 TR for Academic Block-5 UPS Room

2050 CFM / 4.5TR for Academic Block-6 UPS Room

Supply and fixing of MERV 13 FINE Filters complete with leak proof fixing framework installed down stream of existing AHU in Supply Air Duct with trap door provision complete with MS frame work installed within 20G GSS Ducting with Fixing MS flange on both sides etc as required.

500 CFM / 120 MM WC for Academic Block-5/209 Bio Lab

Dismantling of old Motor and Supply, installation, Testing and Commissioning of 3.7 kW / 4 P TEFC drive motor of efficiency class IE3 suitable for 415 ± 10% volts, 50Hz, 3 Phase AC supply suitably designed for variable frequency drive applications in existing AHU complete etc. as required

Fresh Air Arrangements Supply, installation, testing and commissioning of fresh air arrangements with Al rain Louvers / Damper / SS Bird screen for AHU/FFU Fresh Air intake finally comprising of For Fresh air including supply/fixing of MERV 6 (20 micron) Filter (400 FPM Area) per each Unit as per layouts; Required finishes for Fascad Exposed Fresh/Ex Air assemblies shall be provided as per Architects shall be included in cost - For FRESH AIR

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 / m3 density, thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class ‘O’ insulation applied by suitable adhesive complete including repairing of damage to building etc. as per specifications and as required complete in all respect. Note:-The Pipes of sizes 150 mm & 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 per IS: 3589, from minimum 6.35 mm 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.

40 mm dia. (32 mm thick insulation)

32 mm dia. (19 mm thick insulation)

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

BUTTERFLY VALVE (MANUAL) with C I body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled water circulation as specified - 40 mm dia.

BUTTERFLY VALVE (MANUAL) with C I body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled water circulation as specified - 32 mm dia.

SS BALL VALVE complete with Flanges Nutbolts with SS Body and Working parts 25 mm dia.

Y - STRAINER of Ductile CI Body flanged ends with stainless steel strainer for chilled circulation including insulation as specified. - 40 mm dia.

Y - STRAINER of Ductile CI Body flanged ends with stainless steel strainer for chilled circulation including insulation as specified. - 32 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.40 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.32 mm dia.

Supply, Installation, Testing and Commissioning of following sizes electronic, self-balancing, pressure independent type dynamic balancing valve with integrated 2 way modualating control valve in a single body. The actuator shall be capable of accepting upto 10V DC and upto 20mA electric signal and shall provide similar transduced feedback output to control system. Maximum close off pressure shall not be less than 6 Bar for upto 50 mm valves and 7 Bar for 65 mm & above. Valves should have pressure rating of 25 Bar minimum.

40 mm dia.

32 mm dia.

Supplying, fixing, testing and commissioning of Automatic Air Purge Valve at AHU chilled water outlet pipe duly insulated to the same specifications as the connected piping and adequately supported as per specifications. - 20mm dia.

DUCTING AND GRILLS Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required.

Thickness 0.63 mm sheet

Thickness 0.8 mm sheet

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 diffusers of powder coated aluminium without volume control dampers with anti smudge ring & removable core.

Supplying & fixing of powder coated extruded aluminium Supply Air Grills with aluminium volume control dampers as per specifications.

Supplying & fixing of powder coated extruded aluminium Return Air Grills with louvers but without volume control dampers complete as required.

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

Supplying, Fixing,testing and commissioning of fire dampers in supply air duct/main branch and return air path as and where required of required sizes i/c control wiring,the damper shall be motorized and spring return so as to 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 signal complete as required and as per specifications.

Fire damper

Actuator

INSULATION Supplying and fixing of following thickness 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 specifications and as required.

Supply and fixing of acoustic lining of supply air duct and plenum with 25 mm thick resin bonded glass wool having density of 32 kg/m³, with 25 mm X 25 mm GI section of 1.25 mm thick, at 600 mm centre to centre covered with Reinforced Plastic tissue paper and 0.5 mm thick perforated aluminum sheet fixed to inside surface of ducts with cadmium plated nuts, bolts, stick pins, CPRX compound etc. complete as required and as per specifications.

Supplying, fixing acoustic lining on wall and ceiling of AHU rooms with 50mm thick, density 32 kg/cu.m resin bonded glass fiberinsulation friction fixed in 610mm x 610 mm frame work made ofchannel and covered with reinforced fiber glass tissue and finishedwith 0.80 mm perforated aluminium sheet etc. complete as required and as per specifications.

Supply, installation, testing & commissioning of Rigid PVC drain piping of 10 Kg / Sq. Cm. of pressure rating for the units with insulation as per specifications and suitable for following pipe sizes.

32 mm (13 mm plain sleeve & not self sleeve)

25 mm (13 mm plain sleeve & not self sleeve)

Supplying & fixing of M. S. supporting structure made of MS chanels & MS angles etc for installing exhaust fan units duly epoxy coated etc as required.

Cabling: Supplying & Laying of one number additional XLPE insulated Copper conductor armoured power cable of 1.1 KV grade of following size on cable tray/ surface as required.

6 sq.mm x 4 core copper conductor cable

1.5 Sqmm x 3 core Copper Conductor cable

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

4 X 6 sq. mm

Cable Trays Supplying and installing following size of perforated Hot Dipped Galvanised Iron cable tray (Galvanisation thickness not less than 50 microns) with perforation not more than 17.5%, inconvenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. as required.

100 mm width X 50 mm depth X 1.6 mm thickness

Direct Digital Controller with Enclosure Panel Supply, installation, testing and commissioning of DDC controller RTC shall be based on 32 bit microprocessor. The DDC shall either be compact (fixed) IO or with modular IO. Integrated I/O Shall have at least Digital output-04 nos. , Digital Input-6nos., Analogue output-06nos., Analouge input-08nos. universal inputs. Shall communicate with peers or management station software or native Bacnet/IP Protocols on Ethernet LAN only. Shall have at least 02 nos of built in serial communication port with RS485 interface for supporting open Protocols. Shall have facility to add on external non-volatile memory like SD card with capacity to store all I/O data of that particular DDC for at least 03 years. DDC controller shall be UL listed. The DDC panle shall be 16AWG MS RAL 7032 colour, powder coated, wall mounted,IP55 rated of suitable size (not too congested) with proper internal mounting accessories for DDC such as DIN Rails, Terminals Blocks for cable terminations, well dressed for all internal cabling, ferruling, tagging etc. The DDC panel shall have SMPS power supply and other connected peripherals equipments, relays, fuses. Auxiliary power output socket & lamp etc. as required to complete the installation intended usage shall also be part of panels as per technical specification etc. as required. Controller requiring fan for cooling are not acceptable.

Field Peripherals: Instrumentation & controls complete with required fitting and mounting accessories like copper tubing, PVC tubing, terminations, ferruling, tagging, lugs etc. all provided to ensure standard technically acceptable-installation.

Supply, installation, testing and commissioning of Duct Mounted air type differential pressure switch (air Filter Status) range 0-500 Pa as per technical specification etc. as required.

Supply ,installation, testing and commissioning of Duct Mounted air type differential pressure switch (blower Status) range 0-250 Pa as per technical specification etc. as required.

Supply ,installation,testing and commissioning of Duct Mounted air type temperature and RH sensor range -30 degree celcius to +90 degree celcius, 0-100% RH, Accuracy: +/-0.5 DegC & ±2% as per technical specification etc. as required.

Supply ,installation,testing and commissioning of immersion type temprature sensor with Thermowell range 0-40degree celcius as per technical specification etc. as required.

Supply,laying on wall/cable tray with suitable saddle,connection,termination of 4 Core 1.5 Sqmm Copper conductor armoured cable for serial communication.

Supply installation Testing and Commissioning of all fiber body Slim line Chilled Water HiWall type Units with insulated drain pan below coil with drain hose / direct drive 3 speed turbo fan; Copper Coil header, Chilled water Coil of required diameter & 2/3 row deep; Cleanable fabric filter; Unit shall include Corded Remote Control Unit with wall mounted fixtures & required Cord length having permanent Lower limit Temperature Lock (to set indoor temperature not less then 27 deg C), corded remote controller shall have power On/Off, 3 speed Switch and Digital Temp Display, required control wiring laid in conduits; Condensate Drain pump complete with Reservoir, acoustic tube, anti-siphon and accommodated within the Unit body with all fixtures; Unit shall include factory assembled and tested 2 way PIBCV valve with On/Off Actuator pair of brass ball valve + inlet strainer and required fixing accessories; unit shall be with required 1.5sqmm FRLS PVC Flexible multistrended wires in receesed conduit including plastering painting the cut portion of the wall; from nearest DB/Switch Board in the Room with MCB. Minimum Unit Tonnage = 2 Tons/ Minimum Air Quantity = 500 CFM; Note - 2W PIBCV valve assembly and copper piping shall be housed in a suitable gauge MS Sheet duly powder coated to approved shade; this box will be factory assembled and ready to connect down stream to FCU; It is intended to connect valve assembly FCU with insulated copper piping (minium 5/8 " (Five by Eighth inch) Diameter) from existing Main Chilled Water Header runnnig in Corridor; This copper piping is also covered in the scope of this item; Valve assembly particulars including fixtures and accessories.

Supply, Installation, Testing and Commissioning of Jointing arrangement between Corridor header and unit copper piping/valve assembly fabricated (welded & flared) out of MS Bend/Threaded Nipple / Brass Flare nipple etc. As required.

Supply installation balancing and commissioning of Assembled fresh air intake Unit comprising of 24G GSS Round ducting 80 mm Dia x Length as per layout provided with fabricated GI butterfly type Volume control damper with external lever fitted inside pipe with hinged arrangement and locked to desired degree, including SS birdscreen at Terminal cleatfixed with neporene on Round Duct flush with outer wall with all required fixtures / accessories /including making and finishing of required civil opening along with hollow MS Sleeve sorrounding the Duct provided as per site incharge for the size specified

Supply Laying Fixing testing and commissioning of following nomimal size of chilled water piping inside the building (with necessary clamps vibration iosolators and fittings but xcluding valves strainers gauges etc) duly insulated with following closed cell elastomeric nitrile rubber insulation of minimum 45 kg/m3 density thermal conductivity 0.037 W/mK or better at 20 deg mean temperature class O insulation factory laminated with Glass fiber cloth 200 GSM of approved shade; insulation shall be applied by suitable adhesive including repairing of damage to building etc as per specifications and required complete in all respects; (Note Pipe sizes of 150 mm and below shall be MS C Class as per IS1239); All riser pipes in shaft shall be supported with SS Clamping, U clamps & wall mounted fasteners in workmanlike fashion complete with all fixtures/accessories ;

25 mm NB (19 mm insulation)

Supply installation testing and commissioning of Heavy class IS CPVC Drain Piping for Fan Coil Units. (Including Band, Couplers, T joints, U clamps, wall mounted fasteners, with all fixtures/accessories, etc as required.)

Supply installationt esting and commissioiong with Flanges/Nutbolts complete of Insulated Chilled Water Isolation type manual Al / CI Butterfly valves SS disc, Nitrile Rubber seal & O Ring in PN16 rating with operating lever and graduated disc pair of flanges neoprene gasket complete

25 mm NB ball valve (in lieu of BFV)

PRANAM HVAC ENGINEERING PVT LTD

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M. K. Aircon Systems Pvt. Ltd.