Dismantling old VRF units, Supply, Installation, Testing and Commissioning of new VRV/VRF Systems inclusive of 02 Years Comprehensive AMC of the Installed HVAC system at Department of Biological Sciences. Indian Institute of Science. Bangalore

Amount

Higher Side:OUT DOOR UNIT - Supply of VRF Outdoor condensing unit comprising of Inverter twin rotory compressor's, Heat Exchanger, propeller / axial fans, refrigerant circuit, Safety Devices & Oil Recovery System, operating on R410a refrigerant gas. Microprocessor based control panel, able to integrate with BMS of any make seamlessly. Necessary hardware / software must be included. First charge of Refrigerant Gas and oil charge.Compressor shall be Inverter twin rotory compressor and shall be equipped with inverter controller of Insulated Gate Bipolar Transistor (IGBT) type to be efficient & quiet. Outdoor unit shall have step less capacity control with ALL INVERTER Compressors.Minimum two or more compressors per Out door module Condenser : Air-cooled condenser, shall be constructed with copper tubes mechanically bonded to aluminium fins to form a cross fin coil. Aluminium fins shall be coated with anti-corrosion coating.Refrigerant Circuit shall include an accumulator, liquid and gas shut off valves and a solenoid valves. Outdoor unit shall include the following safety devices:High pressure switch, Low pressure switch, Fan motor safety thermostat, Inverter overload protector, Over Current relay, Fusible plugs, Fuses, Spring type vibration isolators etc., Outdoor unit supporting arrangement, foundation block, supporting MS platform, Painting with two coats of black paint.Unit shall be equipped with an oil recovery system to ensure stable operation with long refrigerant piping.Unit shall be equipped with power fluctuation safety devices to address frequent power fluctuations.Complete electrical power wiring of Aluminum & control wiring of copper required from indoor and outdoor units. Earthing of the complete system with 8 G G.I wire.Electrical Panel will be complete with necessary starters, fuses, switches, timers, over-load relays, contactors, push button and indicating lamps, single phasing PREVENTOR etc.,All outdoors units shall be mounted on MS angle base frame structure duly black painted with synthetic epoxy paint.Frame structure shall be mounted on MS plate & serrated rubber pads.Complete clamping and saddling of cabling work and refrigerant piping, covered with PVC conduiting.Cooling only applicationPower wiring from nearest electrical panel (Provided by other agency) to Outdoor unit running in 32mm dia GI Conduit.Local Transportation, Insurance, Loading, Unloading, Freight charges from ICD to site, Lifting of ODU to Terrace level and Indoor unit to respective floors, Levelling charges, etc.,Port Clearing Charges if anyInstallation, Pressure testing, Commissioning and Handing Over of total VRV system. Includes Indoor & Outdoor unit instalation, gas leak test and charging of refrigerant gas etc.,Necessary Hardware & Software required for BMS integrationREFRIGERANT GAS R410A ONLY High COP machines Outdoor unit should be able to withstand voltage fluctuation of +/-10% First charge of refrigerant gas Actual Cooling Capacity at Designed indoor & Out door conditions Ambient Condition: For Summer 96 deg F (35.6 deg C) DB 78 deg F (25.6 deg C) WB 45 % RHInside Design Condition:22 deg C ± 1 deg C & ≤ 60 % RH : 210HP

Supply:180HP

Supply:120HP

Supply:160HP

Supply:152HP

Supply:290HP

Supply:172HP

Supply:86HP

Supply:140HP

Supply:185HP

Installation : 210HP

Installation :180HP

Installation :120HP

Installation :160HP

Installation :152HP

Installation :290HP

Installation :172HP

Installation :86HP

Installation :140HP

Installation :185HP

CEILING MOUNTED HIGH STATIC DUCT TYPE - VRF:Supply of Ceiling Suspended type DUCTABLE INDOOR units with low noise, multi speed fan, multi row cooling coil, insulated extended drain pan, long life high quality filters, inbuilt drain pump, Canvas connection, corded remote control with thermostat, electronic expansion valve, fittings, supporting arrangement all complete as per Tender drawing and Specification.Units shall be suitable for input power supply of 1phase, 230volts, 50hz.Units shall be suitable for external static pressure of 200 Pascals.Noise level : < 45 dBA @ 1.0M all around the unit: 8.0 TR / 2966 CFM

Supply: 4.0 TR / 1342 CFM

Installation :8.0 TR / 2966 CFM

Installation : 4.0 TR / 1342 CFM

REFNET JOINTS : Supply : Necessary Ref joints, valves as per the schematic drawing.

Installation: Necessary Ref joints, valves as per the schematic drawing.

CENTRALIZED INTELLIGENT TOUCH REMOTE CONTROLLER : Supply : A mutifunctional compact centralized controller shall be provided with the system. It shall be able to control up to 64 groups of indoor units with the following functions:- 1) Starting / Stopping of Air conditioners as a zone or group or individual unit. 2) Temperature setting for each indoor unit or zone. 3) Switching between Temperature control modes, switching of fan speed and direction of airflow, enabling/ disabling of individual remote controller operation. 4) Monitoring of operation status such as operation mode & Temperature setting of individual indoor units, maintenance information, trouble shooting information. 5) Display of air conditioner operation history. 6) Daily management automation through yearly schedule function with possibility of various schedules. Controller shall have wide screen user friendly colour LCD display and can be wired by a non-polar 2 wire transmission cable to a distance of 1 km away from indoor unit.

Installation:CENTRALIZED INTELLIGENT TOUCH REMOTE CONTROLLER

BMS CONNECTING KIT: Supply : Neccessary hard ware , software, integrator to integrate VRF system with BMS system of any make seamlessly.

Installation: BMS CONNECTING KIT

Lower Side:REFRIGERANT PIPING :Supply: Refrigerant piping liquid and suction lines between the VRF aircooled outdoor units and indoor units. Piping shall be carried out with 16 G Hard drawn copper pipes with soldered / brazed socket fittings. Both suction and liquid lines shall be insulated with closed cell nitrile rubber insulation & exposed piping shall be covered with two layers of Fibre Glass cloth and coated with two layers of shield coating. 54.1 mm with 19 mm thick tubular insulation

Supply:44.5 mm with 19 mm thick tubular insulation

Supply:41.3 mm with 19 mm thick tubular insulation

Supply:38.1 mm with 19 mm thick tubular insulation

Supply:31.1 mm with 19 mm thick tubular insulation

Supply:28.8 mm with 13 mm thick tubular insulation

Supply:22.2 mm with 13 mm thick tubular insulation

Supply:19.1 mm with 13 mm thick tubular insulation

Supply:15.9 mm with 10 mm thick tubular insulation

Supply:12.7 mm with 10 mm thick tubular insulation

Supply:9.5 mm with 10 mm thick tubular insulation

Installation:54.1 mm with 19 mm thick tubular insulation

Installation:44.5 mm with 19 mm thick tubular insulation

Installation:41.3 mm with 19 mm thick tubular insulation

Installation:38.1 mm with 19 mm thick tubular insulation

Installation:31.1 mm with 19 mm thick tubular insulation

Installation:28.8 mm with 13 mm thick tubular insulation

Installation:22.2 mm with 13 mm thick tubular insulation

Installation:19.1 mm with 13 mm thick tubular insulation

Installation:15.9 mm with 10 mm thick tubular insulation

Installation:12.7 mm with 10 mm thick tubular insulation

Installation:9.5 mm with 10 mm thick tubular insulation

Supply,Installation of GI TRAY:2 mm thick perforated cable GI tray with on existing MS angle support using necessary GI bolts/nuts and washer or welding as required. 150 x 50 mm

COMMUNICATION CABLE:Supply of Communication cabling of 3C x 1.5 Sqmm from Indoor to outdoor units, external wiring to be run in 1" dia GI conduit and inside wiring shall run in 1" dia PVC conduit

Installation:COMMUNICATION CABLE 3C x 1.5 Sqmm

CONTROL CABLE: Supply ,Contol wiring from all indoor units to CITRC, from out door units to CITRC, external wiring to be run in 1" dia GI conduit and inside wiring shall run in 1" dia PVC conduit

Installation :CONTROL CABLE

CORDED REMOTE CABLE: Supply of Remote cabling of 2C x 1.0Sqmm between each IDU & its wired remote to be suitably laid in 1' PVC conduit.

Installation :CORDED REMOTE CABLE: 2C x 1.0Sqmm

POWER CABLE: Supply of Electrical Power cable between the indoor unit and power socket with 2 Core, 2.5 sqmm / as required, unshielded copper cable, with 1 no. plug top for each IDU.

Installation :POWER CABLE 2 Core, 2.5 sqmm / as required

POWER CABLE:Supply of 1.1 KV grade XLPE insulated, Cu conductor armoured and PVC sheathed cables.From ODU to nearest isolator / MCCB 4 C x 25 sqmm / as required

Supply: 4 C x 16 sqmm / as required

Supply: 4 C x 10 sqmm / as required

Installation :4 C x 25 sqmm / as required

Installation : 4 C x 16 sqmm / as required

Installation :4 C x 10 sqmm / as required

EARTH WIRE :Supply and Laying of following sizs of wires for earthing and to be run with the power cables along the cable tray/wall/ceiling as necessary. 25 X 3 GI Flat for Earthing

Supply : 40 X 6mm Flat for Earthing

Installation :25 X 3 GI Flat for Earthing

Installation :40 X 6mm Flat for Earthing

Providing and fixing Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. Hot finished seamless type tubes including cost of materials, labour, usage charges of machinery complete as per specifications and as per directions of the Engineer-in-Charge

Supply of Condensate Drain pump kit suitable for Ductable Units. Size shall be as per OEM recommendation.

Installation :Condensate Drain pump kit

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. Internal work - Exposed on wall 32 mm nominal dia Pipe

40 mm nominal dia Pipes

G.S.S DUCTING as per SMACNA Standards:Supply, fabrication and installation of GI Ducting Along with flanges, supports & all fixing materials.24G. Ducting

22G. Ducting

VOLUME CONTROL OPPOSED BLADE DAMPER :Supply of Volume control damper shall be of low leakage type with the outer shell constructed of 1.6mm thick Anodized Aluminum frame and the blade/Leaf with 1.6mm thick Anodized Aluminum. And with necessary flanges for connection etc., as per specification.

Installation :VOLUME CONTROL OPPOSED BLADE DAMPER

POWDER COATED GRILLES:Supply and fixing of powder coated extruded aluminium grill suitable for supply/return air including all fixing hardware etc.,. Complete. 6" extruded aluminium grill with 15 deg to 30 deg louvers

COLLAR DAMPER:Supply & Installation of Collar damper constructed out of extruded aluminum alloy with multiple blade of oppose blade type. Shall be used for the Supply / Exhaust air diffuser & grilles as per the drawings & specifications

ACOUSTIC LINING:Supply of Accoustic lining with Physically Crosslinked open cell polyolefin foam insulation for supply and Return air duct of density 30kg/m3 with Fire Retardant grades of thickness 15 mm. NRC of material should be atleast 0.35 tested as per ISO 354-2000 and calculated in accordance with ASTM C423-90A.

Installation :ACOUSTIC LINING:

THERMAL INSULATION :Supply and installation of Thermal insulation using 13mm nitrile rubber for return air ducts.

Providing & Fixing of High Acoustical False Ceiling having NRC (Noise Reduction Coefficient) 0.90 (minimum) using Integral Densified edged Eco Friendly Fully Perforated Lightweight Calcium Silicate False Ceiling Tiles with Suitable to Modular Grid Size of 600x600mm with PPGI Slimline profile Balck/White reveal T 15 Grid system for Auditoriums, Community halls, Lecture Halls, Airports, Offices, Factories and All other High Acoustics required buildings. The Fully Perforated Lightweight Calcium Silicate False Ceiling tiles shall be made from Non Cementitious Hydrated Calcium Silicate Slurry/Mixture, Reinforced recycled material with fibers and natural fillers. Free from Formaldehyde and other harmful materials. Doesn't contain any toxic ingrediants. The thickness of tiles should be 15mm at all around the edge resting portion with integral densified edge and 10mm thick at the quadrant. The tiles should have fiber glass fleece on rear side along with backing of 50mm thick rockwool slabs of density 48kg/m3 to achieve NRC 0.90 (Minimum)The tiles should have Humidity Resistance (RH) of 100%, Water Resistance, Non Combustible as per BS:476 Part-4, Fire Performance: Fire Propagation as per BS:476 Part-6, Class-1 for Surface Spread of Flame as per BS:476 Part 7, Class A or Class 1 as per ASTM E 84, Thermal Conductivity K= 0.048 to 0.052 w/m K as per ECBC code 2007, Size of the tile is 595x595mm, Density of tile should be 450 kg/m3 density all around on edge resting portion and 350kg/m3 density at the Quadrant, Light Reflectance > 85%, Weight of the tile is 5-5.5 kg/m2 and Suitable for Green Building application with InOrganic Recycled content of 50% and meets the GRIHA norms under the categories: GRIHA V.2015 criterion:11&12, GRIHA V.3 criterion: 17&29 and SVAGRIHA criterion:12. The tiles Shall be laid on 15mm wide Polyester Powder Coated Galvanized Iron (PPGI) Slimline Profile Black/White reveal T-Sections Flanges colour white having rotary stitching double webbed on all T sections. The framework shall comprise of Main T runner with a web height of 38mm and 1200mm & 600mm Cross Tees with a web height of 38mm having sheet thickness of 0.4mm. The T sections should have Galvanizing of 120 g/m2 and need to be installed with Suspension system consisting of 12x50mm long dash fastners, Z cleat 25x37x25x1.6mm with pre cut hole on both 25mm flange to accomdate the 6mm dia bolt of the fasterner on one flange and 6mm fully threaded hanger rod uptom 1000mm length on the other. L-shape level adjuster of size 76x25x1.6mm to be fixed with T grid main runner. The entire grid rests on the perphery on a pre coated GI wall angle of size 15x20mm of sheet thickness 0.40mm of length 3000mm to be fixed on periphery wall/partition with the help of plastic rawl plugs at 450mm center to centerand 40mm long s.s screws. The work shall becarried out as per specifications, drawings and as per direction of Engineer in Charge.

Repair to plaster of thickness 12 mm to 20 mm in patches of area 2.5 m2 and under, including cutting the patch in proper shape,raking out joints and preparing plastering the wall surface with white cement based polymer self curing mortar,including disposal of rubbish,all complete as per the direction of Engineer in charge.

Providing and applying white cement based putty of average thickness 1 mm of approved brand and manufacture,over the plastred wall surface to prepared the surface evenand smooth complete as per Specification andnas per direction of Engineer in charge

Wall painting with premium aceylic emulsino paint of interior grade, having VOC (Volatile Organic Compound) contentless than 50 Grams/litre of approved brand and manufacture,including applying additional coats wherever required to achieve even shade and colour .two coats as per Specification and as per direction of engineer in charge

Finishing walls with Acrylic smooth exterior paint of required shade :Old work (Two coat applied @1.67 1/10 m2)on existing cement paint surface including preparing the surface aftre thorughly cleaning the surface to remove all dirt,dust and foreign matter,cost of materials,labourcomplete as per specification and as per direction of Engineer in charge

Supply and installation of Tarpaulin canvas between the AC duct and AC evaporator unit including accessories.

Dismantling of existing indoor,outdoor,ducts,copper piping and shifting of the same as per direction of engineer incharge

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineering in charge to the appropriate disposal area.

Dismantling aluminium/ Arcylic Sheet/Gypsum partitions, doors, windows, fixed glazing and false ceiling including disposal of unserviceable material and stacking of serviceable material to the appropriate disposal area as per direction of Engineer-in-charge.

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material to the appropriate disposal area as per direction of Engineer-in-charge.In cement mortar

Providing Comprehensive Annual Maintenance Contract with three skilled technicians

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