Supply Installation Testing and Commissioning of HVAC system at NSSC TATA Auditorium in IISc Bangalore

Amount

Cat (A) -Items to be supply and installation

Supply and Installation of Cabinet type, modular double skin,Floor Mounted Air handling unit Compatible to Chilled water application with 50 mm thick panels complete with Fan section with forward curved DlDW centrifugal fan suitable for operation through DOL/Star Delta fan motor, drive set with V-Belt drive, belt guard, limit switch & light point with marine lamp with cover for the fan motor section, access door, Coil section with DX 6 Row deep cooling coil with stainless steel drain pan, filter section with filters suitable for 10 micron particle size, 90% efficient filters. The ADP to be achieved shall be 52 deg0F. SS304 Insulated drain tray with drain trap. Make: ZECO/VTS/AIR BLOW (a) 16000CFM,40TR,60mmwg ESP

(b) 4000CFM,10TR,40mmwg ESP

(c )4800CFM,12TR,40mmwg ESP

(d) 5600CFM,14TR,40mmwg ESP

CHILLERS: Supply,Lifting,Shifting,Positioning,Installation, Testing and Commissioning of Air Cooled Screw Chiller Package of actual capacity not less than 80 TR @ 40 deg c ambient DB temperature as per following specifications. Compressor:Screw/Reciprocating Compressor compatible with a VFD for Capacity control. Refrigerant shall be eco friendly : R134a Condenser shall be of Air Colled Type. Evaporator shall be of Shell&Tube/PHE (Brazed will be preffered) with pressure drop1bar on the water side. Chilled water Temperature : Evaporatore Water Temperature:7 Deg C Evaporator Water Chilled Water flow rate:192GPM Return Temperature:12DEG C Capacity Control:30-100% using VFD Controls with constant supply & Return Water Temperature. Noise: 70db at 1.5meters from the unit. Communication protocol: MODBUS-TCP(Standard)with any other protocol compatible with SCADA System in the BMS. Note:1) If RS485RTU is provided it must be full duplex and should be supplied with a RS485Bto ModBus TCP Converter. 2) MODBUS Map to be supplied to be integrated with the BMS at the time of Commissioning. 3) MODBUS Control should offer full duplex control such as remote ON/OFF,Capacity control through VFD,Set point Change of Supply/Return water Temperature. COP@35Deg c ambient: >3.3 All components shall be mounted on welded steel base frame, structural steel profiles/panels made out of galvanized sheet steel, protected with primary coat & finished with acrylic paint. The chillers shall comprise all necessary components like Compressor Starters, Sound Attenuator for compressors, Cooler, Condenser, throttling device, flow switch. The chiller shall be mounted on the Anti vibration mounting as per the manufacturer's standard. The details should be furnished for approval. The quoted price should also be inclusive of PVC / ply wood sheet for protecting Condenser Fins from Factory. Warranty& Service Maintenance:5 Years from the date of Commissioning. Make:VOLTAS/BLUE STAR/CLIVET/CLIMAVENETA/CARRIER/TRANE

CHILLED WATER PRIMARY PUMPS : Supply, installation, testing and commissioning of Chilled water Pumping system comprising of Single stage centrifugal pump having Suitable motor with IP 65 protection, SS casing, bronze impeller, stainless steel shaft, mechanical seal, coupling, coupling guard, etc.. All wetted parts shall be SS304/316. The pump shall be fitted with VFD.With an analog card of (4-20mA)and a MODBUS TCP Card For Remote control and Management with BMS System. Flow rate: 192 US GPM & 20 Rmt Head. Pump Make: GRUNDFOS/WILO/KSB/SHAKTI PUMPS/ARMSTRONG VFD Make:DANFOSS/SIEMENS/ABB/ALLEN BRADLEY

CHILLED WATER SECONDARY PUMPS : Supply, installation, testing and commissioning of Chilled water Pumping system comprising of Single stage centrifugal pump having Suitable motor with IP 65 protection, SS casing, bronze impeller, stainless steel shaft, mechanical seal, coupling, coupling guard, etc.. All wetted parts shall be SS304/316. The pump shall be fitted with VFD.With an analog card of (4-20mA)and a MODBUS TCP Card For Remote control and Management with BMS System. Flow rate: 192 US GPM & 25 Rmt Head. Pump Make: GRUNDFOS/WILO/KSB/SHAKTI PUMPS/ARMSTRONG VFD Make: DANFOSS/SIEMENS/ABB/ALLEN BRADLEY

Supply,Installation of Common Air and Dirt Separators as located at the pump suction suitable for below mentioned water flow and size. The separator should be complete with high capacity air vent, service valve, non return valve, butterfly valve connection for makeup water inlet, flanges, drain valve etc. Air seperator to be supplied with Tri leg arrangement and installed on PCC plinth if required.- 400US GPM. Make:ANERGY/HYDROFLEX/XYLEM

Supply and Installation of Hydro Pneumatic Closed expansion tank 500 liters insulated with 19 mm thick closed cell elastomeric insulation complete with 2 Nos booster pumps, pressure switches, isolation valves, check valves, accessories and insulation for the connected chilled water piping. Make:ANERGY/Global/GRUNDFOS/ARMSTRONG

Supply,Installation of Make up water Tank 500Litre capacity with drain valve & Accessaries. Make: SINTEX/KAVERI/RENO/PENTAIR

Supplying and fixing Flexible connections Between Pipeline and Chiller. Make: CORI/KINFLEX

Supplying and fixing Flexible connections for pumps & Pipeline. Make: CORI/KINFLEX

Supply and Installation of UPVC chilled water pipe with necessary fittings,flanges etc. with 50 mm Thick and density of 40kg/cum PUF insulation covered with 26 G Al. cladding. Rate shall be inclusive of all necessary fittings and pipe supports. Make: ASTRAL/ASHIRWAD/PRINCE/PRIME/KAVERI (a) 65mm dia

(b) 80 mm dia

© 100 mm dia

(d)150mm dia

Supply and Installation of Butterfly Valve with insulation & matching flanges. Make: DANFOSS/ADVANCE/ZOLOTO/AMTECH/AUDCO (a) 65mm dia

(b) 80 mm dia

(c ) 100 mm dia

(d) 150mm dia

Supply and Installation of Y Strainers with insulation & matching flanges. Make : ADVANCE/ DANFOSS/SANT (a) 65mm dia

(b) 80 mm dia

(C )100 mm dia

(d) 150mm dia

Supply and Installation of Balancing Valves with insulation & matching flanges. Make : DANFOSS/ADVANCE/AIRA/ZOLOTO/AUDCO (a) 65mm dia

(b) 80 mm dia

(c )100 mm dia

(d) 150mm dia

Supply and Installation of NRV with insulation & matching flanges. Make: DANFOSS/ADVANCE/AIRA/ZOLOTO/AUDCO (a) 100mm dia

Supply & Installation of 3 way modulating, temperature control valve with electric actuator for modulating control of the valve of following size with Thermostat and related wiring. Make: Honey well/BELIMO/SIEMENS/DANFOSS (a) 65mm dia

(b) 80mm dia

(c ) 100mm dia

Supply and Installation of 100 mm dia Dial type pressure gauges with ball / needle valve. Make: WIKA/WAREE/H GURU/RADIX

Supply and Installation of 100mm dia Dial type industrial type thermometer. Make : WIKA/WAREE/ H GURU/RADIX

Supply and Installation of Drain cock with Ball Valve - 25 mm dia

Supply and Installation of Automatic Air vent. Make:ITAP

Supply and Installation of Water Flow switch. Make:IFM

MS Angle Fabrication work including cutting,welding,painting etc as required.

LOW VOLTAGE SWITCHGEAR - LT PANELS: Design, Manufacture, Assemble, Supply, Installation, Testing & Commissioning of the following Powder Coated panels of free standing, compartmentalised, dust and vermin proof, fabricated from CRCA sheet steel metal not less than 2mm for all members including door, powder coated (duly treated by 7 tank process) also with continuous earth bars with 2nos.earth terminals necessary lifting hooks, all necessary gland plates & glands complete. All panels with top entry provision. The Panels shall be "Linear" or "L" or "U", Double front construction to suit proposed electrical room. The panel shall be finished in light grey (Shade RAL-7032 of IS-5) with powder coated paint (or approved colour as per site requirement) and as per the specification, enclosed SLD and all complete as required. This shall include transportation from Factory/ owner's issue point to actual point of installation by contractor's own lifting and Transporting arrangement. Unpacking ,placing panels in position and total system checking .This includes any modification to be carried out for for termination of aluminum conductor armoured cable like provision of additional adopter boxes etc. CTs shall be with dual ratio and cast resin type only.All breakers more than 250A will be microprocessor based only and less than 250A breaker shall be Thermal based releases.Ventilators shall be provided for the Panels. All Civil works such as foundation for LT equipments, wall chases using groove cutting machine, finishing with chicken mesh and rough plastering of all grooves,making openings in wall and re-doing etc., shall form part of rate quoted against particular item in BOQ and shall not be measured seperately.Contractor shall submit shop drawings for the consultants' approval before the execution of work. (a) AUDITORIUM MAIN PANEL

(b) HVAC PANEL

(c ) 3/4KW AHU PANEL

(d) 7.5KW AHU PANEL

(e ) 15KW AHU PANEL - Auditorium

POWER & CONTROL CABLES : Supply, Instalaltion, Testing & Commissioning of Power cables 1100 V Grade, Copper or Aluminum Conductors-multi-strand construction of only approved make (include unloading,shifting upto site). The cable shall be either laid on existing cable trays or in existing trench. The scope includes clamping of cables by ready made G.I. spacers, saddles or clamps fabricated out of M.S. strip 3 mm thick, Treasing and Clamping of Cable on cable tray, supply of all clamping materials and hardware etc., providing cable tags made out of aluminium strip and 75x20 mm in size with cable number and size punched on it. Cable tags shall be tied to cables at every regular interval at both the ends.As per IS No 7098, Part 1- XLPE Cables, IS No 1554, Part 1, 1988- PVC Cables. Contractor to measure the length of the cables @ site and then procure the cables. Make: FINOLEX/HAVELS/POLYCAB (a) Horizontal Drilling work for Cable Laying

(b) 3 1/2 core x 300 Sq. mm (Al. XLPE armoured)

(c ) 3 1/2 core x 150 Sq. mm (Al. XLPE armoured)

(d ) 4 core x 25 Sq. mm (Al. XLPE armoured)

(e ) 3 core x 4 Sq. mm (CU. XLPE armoured)

CABLE END TERMINATION : Supply & Installation of Cable end termination of following Power cables 1100 V Grade, Copper or Aluminum Conductors-multi-strand. The termination rate shall include drilling of gland plates and dressing of cables inside panel / terminal box with and crimping of tinned copper double barrel lugs of required size. Glands shall be with double seal cone grip arrangement and PVC rubber hood. Cable glands shall be tinned brass 'SIBG' type. Blind plug to be fixed where as required. Contractor shall check cable diameter under and over armoured, prior to supply of glands. Ferrule to be considered for each and every Power and control cable. (a) 3 1/2 core x 300 Sq. mm (Al. XLPE armoured)

(b) 3 1/2 core x 150 Sq. mm (Al. XLPE armoured)

(c ) 4 core x 25 Sq. mm (Al. XLPE armoured)

(d ) 3 core x 4 Sq. mm (CU. XLPE armoured)

CABLE TRAYS AND RACEWAYS : Supply, unloading, shifting, storage & installation of hot dipped GI as per IS 2629, prefabricated Ladder / perforatede Type Cable Tray made out of 2.5mm thk. sheet duly hot dip galvanized (610 gms per sq. mt.) in standard length of 3.0 mtr having side channel of size 100 x 30 x 10mm & inside slotted Rung of size 40 x 20 x 2.5 mm duly welded at an interval of 250mm, including 2 Nos. of GI Coupler Plate of size 215 x 90 x 2.5 mm with accessories and hardware (coupler plates, nuts bolts washers). All cable tray accessories like Bends, Tees, Reducers, elbow, supports to complete as required shall be fabricated as per site requirement and no extra cost. The welded part shall be touched up with anti-corrosive primer and silver paint. The running rate shall include fabrication of bends, tees and couplers, supports etc., to complete with no extra claim. The tray shall be earthed. GI Perforated Tray : 600 x 50 mm wide

EARTHING SYSTEM : Supplying fixing and wiring earth electrode for grounding of lifts, transformers, DG sets etc. using 40mm dia 2.9mm thick 2.5 mtr long GI pipe with GI funnel with mesh and suitable size reducer fixed on the top of the earth electrode. The funnel should be enclosed in a CC chamber of 400x400x400mm with a cast iron cover. The earth electrode shall have staggered holes of 12mm dia and the electrode should be covered 150mm all-round with alternate layers of salt and charcoal from the bottom of the CC chamber. The connection from the electrode is to be established through GI strip using GI bolts and nuts.

Supplying and running of GI strips for grounding connections, using necessary fixing materials as required. 25 x 3 GI earth strip with all fixing accessories

Supplying and laying single core 6 Sqmm FRLS-PVC-GREEN colour copper flexible cable etc as required.

MISCELLANEOUS: Supply and fixing in position approved shock treatment charts written in English, Kannada & Hindi. The chart shall be framed in teak wood and covered with glass.

Providing and installing Electrical grade rubber mats of 1100 V grade and size of 1.8 mts. X 0.9 mt.

Supply and fixing First aid kit with all accessories as per medical standards.

Dismantaling of existing panels cables as per sie conditon.

Supply,Installation,Testing and Commissioning of site Fabricated GSS Ducting. (a) 22 swg

Supply,Installation,Testing and Commissioning of Fire dampers with Fusible Link. Make: AIR MASTER/JAYDEE/AJANTA/BELIMO

Supply and installation of Duct Thermal Insulation applied outside of the duct work with 9 mm thk Closed cell XLPE elastomeric insulation of 40-60Kg/Cum density and with K value of 0.034 W/mK at 20 deg C, with aluminium foil. Insulation shall be with Class 1 fire classification. Make:VIDOFLEX/K FLEX/SUPERLON

Supply& Installation of CPVC Pipe for the removal of condensate water. Make: ASHIRWAD/ASTRAL/KAVERI (a) 25mm

Civil works like wall opening and making good of the same etc as required.

Testing and Commissioning and Handing Over of the above System with necessary Reports and Documentation as required.

Cat (B) - Buy Back Items

Buy-Back (ie minus) Buy back of the existing chilled water system comprising of water cooled chilled water system approximate capacity 150 TR Cooling Tower Chilled water and Condenser Pumps, Air Handling Unit MS Piping, cables etc. (Dismantling of the units shall be in the contractors scope)

Bluestar Ltd

SM ENTERPRISES

MAGNACOOL ENGINEERS

COMFORT SYSTEMS

BRITE INDUSTRIES

HV AIRCONDITIONING SYSTEMS PVT. LTD.

Gemini Cooling Systems Projects Private Limited

Voltas Limited