Revamping of HVAC System for CRI Building at ACTREC

Amount

Air Cooled Chillers - Water Chilling Unit Screw Chiller Supply, Installation, Testing and Commissioning of AHRI Certified Air cooled Screw/Single Screw Water chillers complete with Air Cooled Copper Condenser and Aluminium Fin condensers, Multiple Compressors, Multi circuit Chiller, refrigerant R-134a, microprocessor based Control system, Electrical panel, mounting frame works, vibration isolators, integral refrigerant piping and wiring, all required accessories, automatic & safety controls, advanced microprocessor based control panel along with required hardware & software for integration with a 3rd party BMS (Open protocol), Star- Delta starter, compressor shall be of the chiller OEM only i.e. outsourced compressor shall not be acceptable. ASME Stamped evaporator OR Equivalent, Gold fin or equivalent epoxy coating, first charge of refrigerant and oil, incomer switchgear with terminations box suitable for terminations of XLPE AL armoured cables, earthing terminations etc. all mounted on a steel frame, foundation bolts nuts and accessories complete duly finished as per manufacturer standard as required & as per technical specifications with the following characteristics complete as required :

Cooling Capacity: 225 TR at Actual

Chilled water in : 54 °F

Chilled water out : 44 °F

Chilled water flow : 595.3 USGPM

Fouling factor : 0.0005 FPS

IKW at Design condition : 1.18 (Max)

NPLV at Design condition : 6.4 (Max)

IPLV at AHRI condition: 4.57 (Max)

COP at AHRI Condition shall be 3.2 (Minimum)

Ambient Temperature: 38 Degree Celsius

The price quoted shall include pre shipping inspection / testing at the works of the manufacturer Freight, Insurance, Port clearance, loading / unloading, Installation, testing and commissioning as per specifications.

Factory Testing: Chiller will be run tested at 100%,75 % ,50 % and 25% or required based on prevailing condition before despatch in front of Consultant/Representative of Customer. Cost of Witness Test to be borne by Supplier. Test procedure to be followed is as of AHRI/ASHRAE/BIS.

Air Handling Unit: Supply, installation, testing and commissioning of factory built/site assembled Euro vent Certified/BIS Certified/Equivalent , Horizontal/Vertical - Air handling units in Double skin type (Casing shall be of Non-Skeleton construction) with 40 ± 5 MM thick panels or Higher. AHU Construction should meet Mechanical performance of AHU casing as tested in Euro vent accredited laboratory as per EN1886 and meet the following characteristics: Mechanical Strength: D1, Thermal Bridging: TB2, Thermal Transmittance: T2,Air lekage:L1 and Filter by pass: F9 or Higher Characteristics. The said mechanical performance should be meet by each AHU as mentioned below. AHU construction should consist of G.I casing of thickness 0.6 mm outside layer and 0.6 mm inside layer with 275 GSM or equivalent zinc coating and polyurethane foam(PUF) insulation having density of 42 kg/m3, complete with Backward curved aerofoil blade Plug type direct driven fan of Aerofoil design blade along with VFD suitable for static pressure as detailed below or direct driven fan as certified by OEM, chilled water cooling coil with aluminium finned copper tubes. Filter section having pre (EU4, more than 90% efficiency for 10 Microns), fine (Bag filter EU7 3 Microns) or the Filter Section to equivalent to MERV 13 or Higher, UV lamps(UL Certified), IE3 motor suitable for 415 +10% volts,50 Hz, 3 phase AC supply, drain connections with stainless steel drain pan and necessary vibration isolation arrangement to avoid any vibration etc. complete as per specifications and drawings. The static pressure should be verified as per actual site conditions. VFD should be capable to control the speed of the fan and compatible with BMS integration for Fan speed control. External Static considered is 25-30 mm. All accessory should be considered for the proper functioning. Cooling coils should be 6 row. The VFD shall be suitable for at least One PIDs. The scope shall include the AHU starter panel shall include VFD with bypass starter, temperature and humidity controller with suitable field sensor and wiring. Suitable capacity of strip heater( 3kW * 3) shall be provided with control starter to maintain humidity range between 40 to 60%. suitable for input Voltage of 380 Vac to 480 Vac + 10% to -15% with inputs frequency of 50Hz +/- 5%. Overload shall be 120% for 60 Sec & VFD Shall be rated at 50 DegC. Pressure and temperature sensor should be included. VFD should be with weather proof enclosure. Coil capacity should be approved by consultant. Sound level should not exceed 65 dbA at 1m . Water pressure drop in coil shall not exceed 7 PSIG. Mixing Box and Fresh Air Damper to be provided. Drain Pain to be provided with 18G SS or higher.

AHU 22.0TR , 8000 CFM

Chiller Water Circulating Centrifugal Pumps:- Primary Circulating Supply, installation, testing and commissioning of Horizontal/Vertical in line axial Split Coupled PN 16 centrifugal pumps with CI casing and Bronze Impeller complete with CED coating, externally flushed outside type balanced Mechanical Seal and non overloading motor, as per specifications and drawings. Suitable HP, TEFC permanent magnet motor with Efficiency IE4, class ‘F’ insulation operating on 415 + 10% volts, 3 phase, 50 cycles AC supply for each pump. Pump should be provided with motor mounted/Panel mounted IP55 integrated VFD for sensor less/wireless control (2 no's of wireless DPTs should be considered for wireless control across the load). To maintain the redundancy of VSPS(Variable Speed Pumping System), separate Controller must be provided with IP54 protection. Controller should be capable of controlling the two way modulating valve at by-pass line to ensure the minimum flow to the chillers in case of load variation is below the minimum flow required by the Chillers. Controller must have BMS compatibility via Modbus/BACNET connectivity. The controller should stage/destage the variable pumps basis the best efficiency points (BEP) for the optimum efficiency of variable speed pumping system (VSPS). Pump/Panel mounted VFD must display dynamic frequency, amps, volts, flow and head of operating pump. Suction Guide and Triple Duty Valves to be provided by the pump manufacturer for the unit responsibility. Efficiency should more than 70%.Each pump shall comprise of following as required as per specifications.

Electrical by pass starter for pump set.

25 mm thick polyvinyl nitrile rubber insulation duly cladded between aluminium sheets of 0.5mm thickness and properly clamped to pump.

3 Nos. - 150 mm dia type pressure gauges

Mounting frame with antivibration pads (In case pumps are inline, anti vibration system shall be as per Manufacturers recommendation)

RCC/Cement concrete foundation for the pump unit. (In case pumps are inline, foundation shall be as per Manufacturers recommendation). Also SKID option can be provided based on site condition.

Pump capacity are as under:

For Capacity pump set not less than 600 USGPM of water at 50 mtr head each including the triple duct valve and End Suction guide.

All Variable Pumps must be provided with BMS enabled Active Performance Management. It must proactively tracks and manages pump performance and provides early diagnostic messaging, web accessible trends and analysis along with automated reports helping end customer to make performance-based decisions and take immediate action to deliver the best possible HVAC pump performance.The cloud based subscription should deliver real-time alerts, such as: 1) Alarms & warnings on excessive vibration 2) Pump in hand 3) Dead head 4) VFD & Motor Overheating. The connectivity kit supplied by pump supplied should have ability to connect and provide real time data for 8 pumps in a single plant room.

Flow: 600 USGPM, Head: 50 meter.

Variable Flow Control Panel with accessories

EXPANSION TANK AND PRESSURIZATION UNIT.

EXPANSION TANK and Pressurisation Unit: Supply, Installation, Testing and commissioning of INSULATED PRESSURISED CLOSED WATER EXPANSION TANK suitable for total volume of Water Solution, circuit along with necessary accessories such as along with necessary accessories such as 2 Nos pumps (1working +1standby) with Pressure Transmitter and interconnecting Pipe & Isolating Valve complete with piping connections, safety relief valve, drain valve, pressure gauge, automatic air purging arrangement, etc. With Pressure Transmitter and interconnecting Pipe & Isolating Valve complete with piping connections, safety relief valve, drain valve, pressure gauge, automatic air purging arrangement, etc. The tank shall be pre-charged. Expansion tank Shall be with replaceable heavy duty butyl rubber bladder. The tank connection's should be as per OEM recommendations and 20 mm drain and charging valve connection to facilitate the on site charging of nitrogen in the tank. The tank shall be fitted with lifting rings and a floor mounting skirt for vertical installation. The tank must be constructed in accordance with IS-STANDARD 2825-1969 (with lates Revision) and Rated at PN 16. The complete system shall be sourced from single manufacturer and supplied and installed with all accessories and safety fixtures required for proper functioning of the complete hydronic system. The tank shall be duly painted in approved colour shall be complete with pressure switches and power distribution and control panel IP55 Control Panel, Pressure Transmitter, interconnecting piping & wiring. (Tank capacity 500 Litres). Hot Glycol - Water closed vessel pressurized expansion tank as described above shall be duly Insulated with 50 mm thick PUF/Nitrile Rubber insulating material or Equivalent U value Insulating Material and cladded with aluminium Sheet (20G).

Expansion Tank of 1000 Lts

PRESSURIZATION UNIT: Pump Set (Ref. Point 4.1) with Control Panel and accessories.

Make Up TANK: Supply, installation, testing and commissioning of Make up Water Tank, Rectangular/Circular MS (IS 2062) construction with capacity of 990 litres complete with inlet, outlet, overflow, drain and vent with flame arrestor, tank will be made out of 4 mm thick MS sheet with supporting made out of minimum 50mm NB class 'B' pipe to keep tank base at minimum (1000mm) above FFL service platform shall be provided. The tank shall be provided with remote indication and level provided with remote indications and level switches for on-off operation of transform pump. Extra high level and extra low level alarm shall be provided. Tank and structure shall be painted with two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed. Make Up Water tank as described above should be duly Insulated with 50 mm thick PUF/Nitrile Rubber insulating material and cladded with aluminium Sheet (20G).

Make Up TANK: 990 lts

Supply, Installation, Testing and Commissioning of Ceiling Suspended Fan Coil Unit(Cassette Type/ Hi Wall/ Fan Coil Unit- Ceiling) complete with G.I. casing, with Side/bottom return Air Plenum (5mm PE insulation) or as per site requirement For Hi Wall Units the Casing has to be as per OEM(ABS casing) , Filter box with 8mm Nylon Filter, 3 Row Deep cooling coil with coper tube diameter is 9.52 mm and thickness 0.33 mm with hydrophilic Aluminium fins. Complete coil must be designed for standard working pressure is 1.6 MPa(16bar) and the test pressure is 3.3MPa(33bar). Unit to be provided with SS drain pan with 7mm PE insulation and +200 mm extended. Direct driven fan (three speed) motor, operated on 230 volts, single phase, 50Hz, AC supply. Unit to be provided with Wireless remote. It shall also have RS485 Modbus communication function for BMS control. ESP for the Fan Coil Unit be 80 Pa Minimum( In case of 3 Tr, 4 Tr and 5 Tr) or Else Specified. Units need to BIS/Euro vent Certified. The Capacity calculation sheet for Cooling application of unit should be approved by the Consultant. The Cut outs to be made in ceiling as per the Machine for the Servicing purpose/Trap Door should be included in the price. Minimum Capacity should be as follows:The pipe line connected to the main chilled water line is also included with all accesories and hardware.

Each Unit to be provided with Cordless Remote with Temperature display. It has to based on microprocessor operations which can realize intelligent control of room temperature. It shall also have RS485 Modbus communication function or BACnet for BMS control.

1 Tr Hi Wall

1.5 Tr Hi Wall

2 Tr Hi Wall

3.0 TR Hi wall

1 Tr FCU with with UV Lamp (UV Certified)

1.5 Tr FCU with UV Lamp (UV Certified)

Celing Suspended Duct able 2 Tr

Ceiling Suspended Duct able 3 Tr

Ceiling Suspended Duct able 4.0TR

Ceiling Suspended Duct able 5.5 TR

Supplying, fixing, testing and commissioning of Chilled water pipes (Pre-Insulated) 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. The pipes should be insulated with closed cell puff of density 36±2 Kg/Cum of below mentioned thickness. The Pipe should be workable in the temp. range of -50 Degree Celsius to 120 Degree Celsius. 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 M.S. Sheet for pipes up to 350 mm dia. And from minimum 7mm thick MS sheet for pipes of 400 mm dia and above.

Inside Building/Exposed

250 mm with 50 mm PUF thickness and 26 Gauge AI Cladding

200 mm with 50 mm PUF thickness and 26 Gauge AI Cladding

150 mm with 50 mm PUF thickness and 26 Gauge AI Cladding

125 mm with 50 mm PUF thickness and 26 Gauge AI Cladding

100 mm with 50 mm PUF thickness and 26 Gauge AI Cladding

80 mm with 50 mm PUF thickness and 26 Gauge AI Cladding

65 mm with 36 mm PUF thickness and 26 Gauge AI Cladding

50 mm with 36 mm PUF thickness and 26 Gauge AI Cladding

40 mm with 36 mm PUF thickness and 26 Gauge AI Cladding

32 mm with 36 mm PUF thickness and 26 Gauge AI Cladding

25 mm with 36 mm PUF thickness and 26 Gauge AI Cladding

20 mm with 36 mm PUF thickness and 26 Gauge AI Cladding

Buried

200 mm with 50 mm PUF thickness and 26 Gauge HDPE Cladding

150 mm with 50 mm PUF thickness and 26 Gauge HDPE Cladding

100 mm with 50 mm PUF thickness and 26 Gauge HDPE Cladding

80 mm with 50 mm PUF thickness and 26 Gauge HDPE Cladding

65 mm with 36 mm PUF thickness and 26 Gauge HDPE Cladding

Supply, Installation, Testing and commissioning of PVC (minimum 15kg/sqcm pressure rated) drain water piping complete with fittings(elbows, tees, reducers,sockets,u trap etc.) supports, jointing insulated with XLPE class O tubular insulation and any other item required to make the system complete. Nominal diameters of pipe in mms as indicated below:

25 mm dia pipe, Insulation thickness - 19 mm

32 mm dia pipe, Insulation thickness - 19 mm

40 mm dia pipe, Insulation thickness - 19 mm

Cable Tray

Supplying and installing 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/Ground/wall with M.S. suspenders including bolts & nuts, painting suspenders etc. as required

300 mm * 62.5 mm * 2 mm

Duct and Grills

Supply, Installation, Testing Balancing & Commissioning of G.S.S rectangular/round ducting including plenum as required as per IS 655 - 2006 complete with gaskets, elbows, splitters, vanes, supports adjustable dampers, etc. as per approved drawings.(Factory Fabricated/Site assembled)The price shall include necessary scaffolding required for working at required height.

Hot dipped Galvanised with 120GSM Zinc coating

Thickness: 0.63 mm Sheet

Thickness: 0.8 mm Sheet

Thickness: 1 mm Sheet

Supplying, Fixing, testing and commissioning of Motorized dampers for Fresh Air 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.

Supply and fixing of 25 mm thickness duly laminated aluminium foil (minimum 60 micron) of mat finish closed cell Nitrile rubber(Class O) insulation on the existing duct after applying suitable adhesive for Nitrile Rubber. The joint shall be sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation complete as per specification and as required.

Supply and fixing of acoustic lining of supply air duct and plenum with 25 mm thick Supply and Application of Acoustic Insulation with Engineered Nitrile Rubber open cell foam with Density 140 - 180 Kg/m3 passing Class 1 Fire Performance test as per BS 476 Part 7, Air Erosion test for 10,000 fpm air velocity as per ASTM C 1071-05 and with built-in antimicrobial protection. The material should pass Fungi Resistance Test as per DIN EN ISO 846 Method A and Bacterial Resistance Test as per DIN EN ISO 846 Method C; to be applied using manufacturer's recommended Rubber based Adhesive in a blend of solvents.

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

Supply and fixing of Flexible connection Duct.

Valves - Manual

Supplying, fixing, testing and commissioning of following diameter valves(PN-16 Rating) (Complete with Flanges integral or welded, fittings, Nuts, Bolts & Gaskets (PN-16 Rating), strainers (Complete with flanges integral or welded, fittings, Nuts, Bolts & Gaskets (PN-16 Rating), gauges etc for condenser water circulation as per specifications. Insulation thickness of valves should be equal to the Insulation of PUF and AL Cladding of Pipe Section as specified.

Butterfly Valve ( Insulated Valves) with CI body SS disc nitrile sheet & O ring, Complete with fittings, Nuts, Bolts & Gaskets.

Y - STRAINER ( Insulated Valves) of Ductile CI Body flanged ends with stainless steel strainer for hot water circulation including Insulation thickness of valves should be equal to the Insulation of PUF and AL Cladding of Pipe Section as specified.

NON - RETURN VALVE (Insulated Valves) with duel plate of CI body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating for hot water circulation including Insulation thickness of valves should be equal to the Insulation of PUF and AL Cladding of Pipe Section as specified.

Automatic Air Purge Valves for hot water circulation header as specified and required by Engineer In Charge.

Automatic Air Purge Valve

Air Separator

SITC of water pressure gauge (100 mm Ø) bourdon type with brass ball valve of 3/8" Ø and SS tubing, socket. Range (0-50) / (0-100) as required by Engineer In Charge.

SITC of Mercury in glass industrial thermometer in SS-304 casing with 0.5 C least count, range 0-50 C. Brass oil filled thermowell of 1/2" size as required by Engineer In Charge.

Valves - Self Balancing

Supply, Installation, Testing and Commissioning of following sizes self-balancing with built in measuring facility with CI Body flange construction with EDPM coated disc with long pitch with protected pipe insulation and PN 16 pressure rating for chilled water/hot water circulation as specified.

Electrical distribution Panel

Supplying, installation, testing & commissioning of cubical type wall/floor mounted Distribution Panel suitable for Outdoor application from CPRI approved Manufacturer, for 415V, 3 Phase, 4Wire 50 Hz AC supply system fabricated in compartmentalized design from CRCA sheet steel of 2mm thick for frame work and covers, 3 mm thick for gland plates i/c cleaning & finishing complete with 7 tank process for powder coating in approved shade, having Suitable Amp capacity extensible type Copper bus bars of high conductivity, SMC bus bar supports, with short circuit withstand capacity of 50kA with entire panel shall have a common earth bus of suitable size at the rear with 2 Nos earth stud, solid connections from main bus bar to switch gears with required size of Copper bus bars and control wiring with 1.5 sq.mm. PVC insulated FRLS copper conductor Single Core cable, cable alleys, cable gland plates. providing & fixing following switch gears:-

Each MCCB shall be with the following.

Extended Rotary Operating Handle, Phase Spreader links and Phase barriers

1 Set - Digital Ammeter with in built ASS, metering C.T.s "CAST RESIN" type, 15VA, and accuracy class-1of 800/5A for measuring current in each phase

1 Set - Digital Voltmeter with in built VSS, with 2Amp. Back up MCB

1 Set - 3 Nos. Phase indication LED lamps with 2Amp back up MCB, Breaker 'ON/OFF' indicating light with 2A MCB, test terminal block set, circuits as per standard practice, auxiliary contacts for positive interlocking of the breakers as required. - 2 Set

1 No. Suitable energy meter

Each Panel will have Junction box with holes punched for connecting it to existing panel through Cable.

Electrical distribution Panel

Each MCCB shall be with the following.

1 Set - Digital Voltmeter with in built VSS, with 2Amp. Back up MCB

1 Set - 3 Nos. Phase indication LED lamps with 2Amp back up MCB, Breaker 'ON/OFF' indicating light with 2A MCB, test terminal block set, circuits as per standard practice, auxiliary contacts for positive interlocking of the breakers as required. - 2 Set

Location of Electrical panel should be as required by Engineer - In - Charge.

Panel - Main (Location : PLANT ROOM)

Incomer

Bus Bar:-

TPN Copper extensible type main bus bars of minimum of 1500 A capacity (As per capacity of corresponding incoming / Bus couplers) , and auxiliary bus bars of suitable capacity with heat shrunk coloured sleeves and i/c SMC bus bars supports at required intervals complete for cross section, size supports & their spacing etc. for withstanding fault level of 50kA .

Outgoings

Supplying and fixing following outgoing complete connection, inter-connection etc. as required.

1 No. - 1500 Amps Four Pole, 50 KA, MCCB/MCB with Thermal Magnetic release with O/C, S/C & E/F protection release.

Outgoings

Supplying and fixing following outgoing complete connection, inter-connection etc. as required

3 Nos- 600 A 50 KA TPN MCCB with Microprocessor release 3# Chiller 225TR

3 Nos. - 80 A 35 KA TPN MCB with and single phase preventor (For pump)

1 Nos. - 40 A 35 KA TPN MCB with and single phase preventor (For Pressurization Unit)

L.T. CABLES

Supply & Laying/ fixing of following size XLPE insulated and PVC sheathed Copper conductor armoured cable/unarmoured as required of 1.1 KV grade complete as required. (ISI Marked) (in ground/in pipe/in duct/on surface/on cable tray)

3.5 x 240 sq.mm (225TR Chiller ) (Aluminium Conductor)

3.5 x 25 sq.mm. (Pumps)

4 x 16 sq.mm. (Pump )

4 x 10 sq.mm.(Cooling Tower)

4 x 6 sq.mm.

3 core x 2.5 sq.mm.

EARTHING & MISCELLANEOUS ITEM

Earthing complete with galvanised steel earth plate electrode 60cm × 60cm × 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less 'than 1.5 metres below normal ground level, connected to galvanised earth lead wire but using galvanised iron strip 32×6mm as earthing lead

Supply and fixing rubber matting conforming to IS-15652-2006 complete as required. of size 2m * 1m * 25 mm

Dismantling and Buying back

Dismantling (including lifting shifting & transportation) of following items including legal disposal of the debris.

Package AC Appx 25, Electrical panel appx 12, window /split AC appx 200 Nos, cable , piping, ducting etc

buyback of package Acs

Buyback of Window split AC

Buyback of Electrical panel

Dismantling and Re- installation of Split AC with Re filling of Refrigerant Gas and complete in all respect.

1.5 Tr or as required

Total

Providing Comprehensive Maintanance Contract of complete HVAC system as installed as per PART A ( 225 TR x 02 nos chillers, Pumps ,AHUs, FCU,s, VFDs, Main Electrical Control of HVAC System, Electrical Control panel of AHUs etc and as per detail scope of work as mentioned in tender document terms and conditions. for a period 5 years to commence on exhaustion of DLP period(DLP period of 12 months After completion of Project )

CMC of 1st year after warrantee

CMC of 2nd year after warrantee

CMC of 3rd year after warrantee

CMC of 4th year after warrantee

CMC of 5th year after warrantee

Total

vighneshwar airconditioning pvt. ltd

VAV Airconditioning