SPECIAL REPAIRS/REPLACEMENT OF EXISTING CENTRAL AC PLANT FOR OT/ICU AGAINST BER AT MH DEOLALI UNDER GE DEOLALI

Amount

CENTRAL AIR CONDITIONING SYSYEM

Supply, installation, testing and commissioning of minimum refrigeration cooling effect 1x45 TR factory assembled, pre-fabricated and floor-mounted, vapour compression, scroll type water cooled chiller machine complete with semi-hermatic scroll compressors with independent refrigerant circuits, water-cooled S/T type condenser, S/T horizontal flooded type evaporator with carbon steel shell and seamless copper tubes with elastomeric insulation, common MS base frame, interconnected copper refrigerant piping and wiring, vibration isolators, gauge panel, automatic safety controls, flow switch at evaporator and condenser and ozone friendly, CFC-free refrigerant all complete as specified and directed. Two units running One unit standby

NOTES:- (a)The quoted price shall be inclusive of a unit mounted automatic star/delta starter and control panel , victaulic coupling and system integrator capable of giving industry standard (modbus/BACnet) output to BMS for critical parameters mapping shall be required for all critical points displayed on the chiller control panel. The chiller shall be ECBC Building compliant, BMS compatible and shall have RS485/RS232 serial communication protocol; the motor shall be adequate capacity suitable for running these compressors at designed loads , 3- Phase, 415 V ± 10%, 50 Hz AC electric supply; electric panel shall have an IP 54 rating. (b) Necessary civil work viz. foundation for placement of chillers shall be covered in the scope of work. The chiller shall be as per the approved technical specifications and shall meet the following design criteria: [i] Local ambient temperature: 102 °F [ii] Chilled water leaving temperature: 42 ⁰F [iii] Chilled water entering temperature: 54 ⁰F [iv] Evaporator fouling factor: 0.00025 ⁰F ft²hr/Btu [v] IKW/TR: Not exceeding 0.85 [vi] Refrigerant (Ozone friendly type): 407C/410A [vii] Minimum COP required 4.7 (ECBC Building Compliance) [viii] Minimum IPLV: 5.8 (ECBC Building Compliance) [ix] Flow Rate: chilled water- 3.0 USgpm/TR refrigeration cooling effect; condenser water- 450 US GPM heat rejection effect [x]Scroll-type water-cooled chiller suitable for ambient environmental conditions having nominal capacity not less than 45 TR.

CHILLED WATER CIRCULATION PUMP (1W + 1 S)

Supply, installation, testing and commissioning of 10HP monoblock, self-priming, single-stage, centrifugal volute type pump having cast iron casing, enclosed type dynamically balanced phosphor-bronze/SS impeller, high tensile steel shaft, carbon steel stuffing box (sealed by mechanical seal), deep groove ball bearings, TEFC squirrel cage induction motor having IE- 3 efficiency and conforming to IS: 12615- 2018, base plate, mounting channel frame, elastomeric insulation, accessories and fittings, viz. mechanical seal, pressure gauges, thermometers, drains, coupling, coupling guard, vibration isolation arrangement by means of spring / rubber type mounting suitable for operation on 3- Phase, 415 V ± 10%, 50 Hz AC supply complete all as specified and directed.

NOTES:- (a) Necessary civil work viz. foundation for placement of pump, mounting of star/delta starter panel and pump accessories shall be covered in the quoted rate. (b) Monoblock type centrifugal pump suitable for 270 UGGPM water flow and 18 M Water head along with elastomeric insulation. One running one standby

FRP INDUCED DRAUGHT COOLING TOWER

Supply, installation, testing and commissioning of FRP rectanguler shape, vertical, induced draught counter flow cooling tower with uniform water distribution and optimal heat transfer, having tough fiberglass reinforced plastic (FRP) casing of sufficient structural strength to withstand vibrations and wind velocity upto 60 m/s, FRP basin, rigid honeycomb type PVC fill of suitable thickness, SS sprinklers and non-clogging sprinkler pipes, FRP drift eliminator, energy efficient induced draught axial type fans with factory set and dynamically balanced blades pitch, TEFC squirrel cage induction motor having IE- 3 efficiency and conforming to IS: 12615- 2018 with IP 65 protection, inlet, outlet, drain and over-flow nozzle connections, etc. suitable for 3- Phase, 415 ± 10% V, 50 Hz AC electric supply complete all as specified and directed. NOTES:- (a) Necessary civil work viz. foundation, supporting structure, etc. for placement of cooling tower, mounting of star/delta starter panel shall be covered in the scope of work. (b) FRP rectangular shape induced draught cooling tower suitable for 150 TR capacity One runnig One standby

CONDENSER WATER PUMP (1 W + 1 S)

Supply, installation, testing and commissioning of 7.5 HP monoblock, self-priming, single-stage, centrifugal volute type pump having cast iron casing, enclosed type dynamically balanced phosphor-bronze/SS impeller, high tensile steel shaft, carbon steel stuffing box (sealed by mechanical seal), deep groove ball bearings, TEFC squirrel cage induction motor having IE- 3 efficiency and conforming to IS: 12615- 2018, base plate, mounting channel frame, accessories and fittings, viz. mechanical seal, pressure gauges, thermometers, drains, coupling, coupling guard, vibration isolation arrangement by means of spring / rubber type mounting suitable for operation on 3- Phase, 415 V ± 10%, 50 Hz AC supply complete all as specified and directed. one running one standby

NOTES:- (a) Necessary civil work viz. foundation for placement of pump, mounting of star/delta starter panel and pump accessories shall be covered in the quoted rate. (b) Monoblock type centrifugal pump suitable for 450 USGPM water flow and 18 MWC head.

HVAC ELECTRIC PANEL

Supply, installation, commissioning and testing of factory made, CPRI type tested, intdoor, cubical compartmental type "HVAC Panel" of suitable size, conforming to IEC 61439-1 &2, IEC 61641, having both sides openable with hinged double doors & locking arrangement and IP 42 protection made out of 3.15 mm thick mild steel CRCA sheet, supported and fixed on structural frame of angle iron of suitable size, including earthing stud, labeling, painting to all internal & external exposed steel surfaces with powder coating paint (7 tank process), duly fixed in ground with PCC foundation (1:2:4) type B1, with danger notice plate of 1.6 mm thick mild steel sheet, vitreous enameled (white) with letters figures and conventional skull and bones in signal red colour, suitable for 3- Phase 4 Wire system, 500 V grade with necessary wiring, PVC sheathed stranded copper conductor of appropriate length & size, including fixing lugs, bolts, screws etc. complete all as specified.

The HVAC Panel shall comprise of the following: (a) Busbar Chamber:Copper busbar of rated capacity 400 A, covered with PVC insulated sleeves including insulator, nuts, bolts, etc. with complete connection- 01 Set (of 04 busbars) (b) Incoming: (i) 400 A, 415 V, Ics = Icu = 36 kA, conforming to IEC 60947- 2, 50 Hz, FP MCCB with adjustable overload settings, adjustable short-circuit settings, adjustabble neutral protection, adjustable earth- fault settings, instanteneous protection and microprocessor based trip unit- 01 Nos. [ii] LED phase indicators (Red, Yellow, Blue)- 04 Set

[iii] Power Quality analyzer with revenue accuracy of Class 0.2S, complying to IEC 62053- 22, 256 samples/cycle, waveform reading, 512 MB of standard non-volatile memory for data & event logging, up to 63rd harmonics analysis for voltage & current, GPS clock, 01 serial port (Modbus, ION, DNP3), Dual Ethernet port (Modbus/TCP, ION TCP, DNP3 TCP, IEC 61850) and standard digital input, expandable digital IO, analog IO.- 01 Nos. (C) Outgoing: [i] 125 A, 415 V, Ics = Icu = 35 kA, conforming to IEC 60947- 2, 50 Hz, FP MCCB with adjustable thermal settings & fixed magnetic settings with compression lug connectors and thermal magnetic trip unit (TMD)- 03 Nos. [for chillers] [ii] 63 A, 415 V, Ics = Icu = 25 kA, conforming to IEC 60947- 2, 50 Hz, FP MCCB with adjustable thermal settings & fixed magnetic settings with compression lug connectors and thermal magnetic trip unit (TMD)- 02 Nos. [for AHU] [iii] 32 A, 415 V, Ics = Icu = 25 kA, conforming to IEC 60947- 2, 50 Hz, FP MCCB with adjustable thermal settings & fixed magnetic settings with compression lug connectors and thermal magnetic trip unit (TMD)- 06 Nos. [2 Nos. for chilled water circulation pumps, 2 Nos. for condenser water circulation pumps and 02 Nos. for cooling tower] [iv] LED phase indicators (Red, Yellow, Blue)- 08 Set [v] 32 A, 230 V, 50 Hz, SPN MCB (C- curve)- 01 Nos. [for AC Plant Room] [v] Cl 1.0 multi-function meter capable of measuring V, A, F, PF, W/VA, Wh/VAh, Runhrs. Onhrs & interupts- 08 Nos.

NOTES: [i] The panel shall be completely Ethernet communication ready to communicate with Energy Management System & shall be Web based application in-built. [ii] The Panel shall be with wireless energy sensor on incomer and outgoing feeders for monitoring (V, I, P, PF, Energy), voltage loss alarm, Unbalance in phases. Same shall be communicated through Ethernet communication gateway to centralised Energy Monitoring System.

VARIABLE FREQUENCY DRIVE Supply, installation, commissioning and testing of Variable Frequency Drives with IP 55 enclosures and mains disconnect switch comprising of the following: [a] Built in dual 5% impedance DC link reactor (harmonic filters) on the positive and negative rails of the DC bus of the Variable Frequency Drive. [b] Built in EMC filters (electro magnetic compatibility filters) for restriction of conducted emissions to comply with IEC61800:3 (un restricted distribution) :2004 Category C 1 (50 meter). [c] Three feedback PID controller having capability to simultaneously accept 3 feedback signals from temperature sensors or pressure sensors for process optimization and accordingly control the speed of the AHUs or pumps. [d] Integral graphical keypad.

AUTOMATIC STAR/DELTA STARTER (for monoblock pump (for chilled water circulation pumps, condenser water pumps and cooling towers)

EXPANSION TANK FOR CHILLED WATER MAKE-UP

S & F SS- 304 closed expansion tank 500 ltr capacity of pressure rating to suit the system pressure and sized adequately to compensate for water expansion due to operating temperature variations, conforming to IS: 2825- 1969 for 'non-fired pressure vessels' complete with inter-connection piping, non-return valve, safety relief valve and pressure gauge, insulated with 50 mm thick elastomeric insulation and cladded with 26 gauge aluminium complete all as specified and directed.

HDPE MAKE-UP WATER TANK FOR COOLING TOWER

S & F 5000 ltr capactymultilayered HDPE storage tank made up of 100% virgin material, having 100% UV stabilized white outer layer, threaded lid, extra insert lid for protection against algae formation complete with inter-connection piping and non-return valve etc. complete all as specified and directed.

CONDENSER WATER PIPING (MS ERW CLASS- C PIPE)

Supplying, fixing, testing and commissioning of condenser water pipes 150 mm bore 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. complete as specified.

Ditto but 125 mm bore

Ditto but 100 mm bore

Ditto but 65 mm bore

Ditto but 40 mm bore

BUTTERFLY VALVE

Supply, installation, testing and commissioning of PN 1.6 rated double flanged short & long body type butterfly valve 150 mmbore designed, manufactured and tested as per IS 13095: 1991, suitable for isolation and throttling services, having CI body & disc, SS AISI 304 disc seal, CS clamping ring and SS AISI 410 shaft and flange drilling standard end connection with accessories complete all as specified and directed.

Ditto but 125 mm bore

Ditto but 100 mm bore

Ditto but 65 mm bore

Ditto but 40 mm bore

NON-RETURN VALVE (NRV)

Supply, installation, testing and commissioning of PN 1.6 rated swing check type multidoor reflux valve (NRV), 100 mm bore designed & tested as per IS 5312 (Part- 2): 1986, suitable to handle clear water having turbidity up to 5000 PPM, having CI body, door and diaphram, leaded tin bronze seat rings and flange drilling standard end connection, etc. with accessories complete all as specified and directed.

Y-STRAINER

Supply, installation, testing & commissioning of 100mmbore Y-type strainer with CI / MS body, bolted cover, flanged ends, basket of brass / bronze / SS wire mesh complete with flanges, nuts-bolts, gaskets and flange drilling standard end connection, etc. complete all as specified and directed.

MANUAL BALANCING VALVE

Supply, installation, testing & commissioning of manual balancing valve 150 mm NB suitable for PN 1.6 pressure rating, having built-in measuring facility, with CI body, flanged connection, EPDM coated disc with long pitch, etc. conforming to BS 7350 for condenser water circulation complete all as specified.

Ditto but 125 nn NB

Ditto but 100 mm NB

Ditto but 65 mm NB

CHILLED WATER PIPING (MS ERW CLASS- C PIPE WITH INSULATION)

Supplying, laying / fixing, testing and commissioning 100 mm NB for chilled water piping inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with duly insulated with closed cell elastometric nitrile rubber of minimum 45 kg/m³ density, 19mm thick thermal conductivity 0.037 W/mK or better at 20 ⁰C mean temperature class ‘O’ insulation applied by suitable rubber based adhesive covered with a layer of 120 g/m² polythene sheet (vapour barrier) and finally applying 0.63 mm aluminium sheet cladding complete as specified.

Ditto but 80mm NB

Ditto but 50mm NB

Ditto but 32mm NB

Y-STRAINER

Supply, installation, testing & commissioning of 80 mm NB Y-type strainer with CI / MS body, bolted cover, flanged ends, basket of brass/ bronze / SS wire mesh complete with flanges, nuts-bolts, gaskets and flange drilling standard end connection duly insulated with closed cell elastometric nitrile rubber of minimum 45 kg/m³ density, thermal conductivity 0.037 W/mK or better at 20 ⁰C mean temperature class ‘O’ insulation applied by suitable rubber based adhesive covered with a layer of 120 g/m² polythene sheet (vapour barrier) and finally applying 0.63 mm aluminium sheet cladding and accessories complete all as specified and directed.

BUTTERFLY VALVE

Supply, installation, testing and commissioning 100 mm NB PN 1.6 rated double flanged short & long body type butterfly valve designed, manufactured and tested as per IS 13095: 1991, suitable for isolation and throttling services, having CI body & disc, SS AISI 304 disc seal, CS clamping ring and SS AISI 410 shaft and flange drilling standard end connection duly insulated with closed cell elastometric nitrile rubber of minimum 45 kg/m³ density, thermal conductivity 0.037 W/mK or better at 20 ⁰C mean temperature class ‘O’ insulation applied by suitable rubber based adhesive covered with a layer of 120 g/m² polythene sheet (vapour barrier) and finally applying 0.63 mm aluminium sheet cladding and accessories complete all as specified and directed.

Ditto but 80mm NB

Ditto but 50mm NB

NON-RETURN VALVE (NRV)

Supply, installation, testing and commissioning 80mm NB PN 1.6 rated swing check type multidoor reflux valve (NRV), designed & tested as per IS 5312 (Part- 2): 1986, suitable to handle clear water having turbidity up to 5000 PPM, having CI body, door and diaphram, leaded tin bronze seat rings and flange drilling standard end connection, etc. duly insulated with closed cell elastometric nitrile rubber of minimum 45 kg/m³ density, thermal conductivity 0.037 W/mK or better at 20 ⁰C mean temperature class ‘O’ insulation applied by suitable rubber based adhesive covered with a layer of 120 g/m² polythene sheet (vapour barrier) and finally applying 0.63 mm aluminium sheet cladding and accessories complete all as specified and directed.

MANUAL BALANCING VALVE

Supply, installation, testing & commissioning of manual balancing valve 80mm NB suitable for PN 1.6 pressure rating, having built-in measuring facility, with brass / CI body, flanged connection, EPDM coated disc with long pitch, etc. conforming to BS 7350 for condenser water circulation duly insulated with closed cell elastometric nitrile rubber of minimum 45 kg/m³ density, thermal conductivity 0.037 W/mK or better at 20 ⁰C mean temperature class ‘O’ insulation applied by suitable rubber based adhesive covered with a layer of 120 g/m² polythene sheet (vapour barrier) and finally applying 0.63 mm aluminium sheet cladding and accessories complete all as specified and directed.

Ditto but 50mm NB

3-WAY TEMPERATURE CONTROL VALVE

Supply, installation, testing and commissioning 80mm NB electronic, self-balancing, pressure independent type dynamic balancing valve with integrated 3-way modualating control valves in a single body duly insulated with closed cell elastometric nitrile rubber of minimum 45 kg/m³ density, thermal conductivity 0.037 W/mK or better at 20 ⁰C mean temperature class ‘O’ insulation applied by suitable rubber based adhesive covered with a layer of 120 g/m² polythene sheet (vapour barrier) and finally applying 0.63 mm aluminium sheet cladding and accessories complete all as specified and directed.

NOTES: [i] The actuator shall be capable of accepting upto 10V DC and upto 20 mA electric signal and shall provide similar transduced feedback output to control system. [ii] Maximum close off pressure shall not be less than 6 bar for upto 50 mm valves and not be less than 7 bar for 65 mm & above. [iii] Valves should have pressure rating of 25 bar minimum.

DRAIN PIPE

M & L for 20mm bore UPVC pipes and fittings, resistant to chemical & electromechanical corrosion, conforming to EN 1452-2, having specific gravity 1.43, shore hardness 70 °C to 90 °C, tensile strength 500 kg/cm², bending strength 950 kg/cm², modulus of elasticity 3.2 X 10 kg/cm² and dielectric strength > 40 kV/mm complete with accessories complete all as specified and directed.

BALL VALVE

S & F of CL 150 # rated ball valve, 20mm bore designed & manufactured as per IS: 9890 (1981) and tested as per BS 6755 Part- I, having floating type three piece design, CS body, SS- 304 ball, PTFE seal/packing/gasket, CS fastners and lever and screwed/socket weld end connection, etc. with accessories complete all as specified and directed.

Ditto but 32 mm bore

AUTO-AIR-VENT

Supply, installation, testing and commissioning of automatic air-vent valve with20 mm end connection, Brass OT 58 body and cover, polyacetal lever, high density expanded polyethylene float, EPDM rubber plug, stainless steel spring, polyamide cap etc. suitable for maximum operating pressure of 16 bar and maximum operating temperature 115 °C respectively, installed on all high points in the water piping system to automatically remove the trapped air complete all as specified and directed.

TEMPERATURE GAUGE

Supply, installation, testing and commissioning temperature gauge 150 mm dia for temp. range 0° C to 100° C, glycerin filled bimetallic thermometer in compliance to EN 13190, having standard range 0 °C to 60 °C up to 400 °C, IP 67 protection, bimetal coil sensing element, accuracy class 1 as per EN 13190, stainless steel casing, direct bottom mounted, SS- 304 case and bayonet type bezel, SS- 316 stem and connection, aluminum dial (white background with black marking) & pointer (black colour micrometer with zero adjustable), toughened glass window, neoprene filling plug and gasket complete with accessories, etc. complete all as specified and directed.

PRESSURE GAUGE

Supply, installation, testing and commissioning Pressure gauge of 100 mm dial size for pressure range 0 psi to 200 psi, glycerin filled pressure gauge in compliance to EN837-1, having standard range 15 to 0 psi and 16 psi to 10000 psi, IP 67 protection, accuracy class ±1.6% of FS, stainless steel casing and TIG argon welded socket to case, direct bottom mounted, SS- 304 case and bayonet type bezel, SS- 316 bourdon, socket, SS dial (white background with black marking) & pointer (black colour micrometer with zero adjustable), polycarbonate glass window, neoprene blow off disc and filling plug, silicon gasket complete with accessories, etc. complete all as specified and directed.

AIR DISTRIBUTION, DOUBLE SKIN AIR HANDLING UNIT

Supply, installation, testing and commissioning of double-skin type horizontal, floor-mounted, top/side discharge air handling units having corrosion resistant extruded aluminum hollow profile with thermal break, 16 gauge galvanized steel channel base frame, 43 mm thick double skin panel ( Contd/,,,,)

Item No 25.01 Contd/,,, with pressure injected CFC & HCFC free PUF having 'k' value of 0.02 W/°C/m & density 40 kg/m³ pre-coated, pre-plasticized, galvanized outer and inner skin 0.60 mm thick, air-tight casing using gaskets and self-adhesive tapes, AMCA certified energy efficient fans with double inlet, double width forward or backward curved impellers for high static pressure mounted on aluminum extruded siderail base frame, combination of 6 rows deep chilled water coils with anti-corrosion aluminum fins, 2 rows deep electric strip heater minimum 30 KW with anti-corrosion aluminum fins PVC/naylon hinges & handles, view port and marine lamp, limit switch, SS-304 drain pan, 10 micron pre-filters, inspection windows/doors, mixing box and supply/return/fresh air dampers humidification pump spray and piping complete all as specified and directed.

The AHU shall comprise of the following: [a] Suitable DIDW fan with AMCA certified blower having outlet velocity not exceeding 9.2 m/s [b] 4 Pole, TEFC, high efficiency IE2 , squirrel cage induction motor having BHP rating 20% higher than the peak capacity, suitable for 415 V ±10%, 50 Hz, 3-Phase AC power supply [c] V-belt drive assembly with pulleys, belt, guard, etc., double canvass connections with zip to discharge duct/plenum, etc. [d] 50 mm thick, washable HDPE, 90% down 10 micron pre-filters, filters, fixing framework, hinge type access doors, etc. [e] 6 row deep chilled water coil section with Aluminium fins and copper tube tested on 21 kg/cm² with SS sandwiched drain tray, etc. [f] AHU panel made out of 2.00 mm thick mild steel CRCA sheet, duly powder coated, in compartamentalised construction with incomer and outgoing feeders for AHU motor, 3-way valve actuator motor, fire damper actuator motor, etc. complete with , relays, timers, contactors, PT, push buttons, switches, internal wiring, etc. (g)Necessary civil work viz. foundation for placement of AHU, construction of opening(s) for fresh/exhaust air etc. shall be covered in the quoted rate. (h)40000 CFM, 60 mm WG static pressure

Supply, installation, testing and commissioning of double-skin type horizontal, floor-mounted, top/side discharge air handling units having corrosion resistant extruded aluminum hollow profile with thermal break, 16 gauge galvanized steel channel base frame, 43 mm thick double skin panel with pressure injected CFC & HCFC free PUF having 'k' value of 0.02 W/°C/m & density 40 kg/m³ pre-coated, pre-plasticized, galvanized outer and inner skin 0.60 mm thick, air-tight casing using gaskets and self-adhesive tapes, AMCA certified energy efficient fans with double inlet, double width forward or backward curved impellers for high static pressure mounted on aluminum extruded siderail base frame, includes pre filter section with 10 micron filter, fine filter section with 3 micron filters, HEPA filter section with 0.3 micron Super HEPA filters, Kruger/Nicotra/VTS make fan with Crompton/Equivalent make motor, 6 row deep DX coil with SS304 tray complete with fresh air & bleed air module with filters. Capacity:- 12000 CFM @ 125 mm static pressure with arrenge for winter heating with electric strip heaters minimum 20 KW & humidification spray section and pump and piping.

The AHU shall comprise of the following: [a] Suitable DIDW fan with AMCA certified blower having outlet velocity not exceeding 9.2 m/s [b] 4 Pole, TEFC, high effic [c ] 4 Pole, TEFC, high efficiency IE2 , squirrel cage induction motor having BHP rating 20% higher than the peak capacity, suitable for 415 V ±10%, 50 Hz, 3-Phase AC power supply [d] V-belt drive assembly with pulleys, belt, guard, etc., double canvass connections with zip to discharge duct/plenum, etc [e] 50 mm thick, washable HDPE, 90% down 10 micron pre-filters, filters, fixing framework, hinge type access doors, etc [f] 6 row deep chilled water coil section with copper fins and copper tube tested on 21 kg/cm² with SS sandwiched drain tray, etc.

Item No 26.02 Contd/,,,, [g] AHU panel made out of 2.00 mm thick mild steel CRCA sheet, duly powder coated, in compartamentalised construction with incomer and outgoing feeders for AHU motor, 3-way valve actuator motor, fire damper actuator motor, etc. complete with required , relays, timers, contactors, PT, push buttons, switches, internal wiring, etc. (j) Necessary civil work viz. foundation for placement of AHU, , construction of opening(s) for fresh/exhaust air etc. shall be covered in the scope of work. [k) 16000 CFM; 120 mm WG static pressure

GALVANIZED STEEL SHEET DUCTING

Supply, installation, testing and commissioning of factory fabricated, galvanized steel sheet (G.S.S.) square / rectangular ducting for supply / return air, fabricated from galvanized steel sheet 24 G, having zinc coating of 160 g/m² total on both sides complete with gaskets, elbows, splitters, vanes, motorized volume control dampers, supports etc. conforming to per IS 655: 2006 along with required scaffolding work to install the ducts at site complete all as specified and directed.

Ditto but galvanized steel sheet 22 G

Ditto but galvanized steel sheet 20 G

Ditto but galvanized steel sheet 20 G

Two-Way Modulating Motorised Valve

Supply,Installing, testing and commissioning of complete control for AHUs comprising of a set of 2- way modulating proportional linear type motorised valve 80mm dia having manual overried facility with Proportionate thermostate and wiring for interconnection with 1.5 sq.mm copper conductor multicore armoured cable suitable for Heating /Cooling complete as per specifications and as required.

Ditto but 100 mm dia

FIRE DAMPER

Supply, installation, testing and commissioning of fire damper complete with smoke detector/thermister, fusible link etc. and actuator as required for operation. The fire dampers shall be spring activated on melting of fusible link having melting point 67.13° C. The fire damper shall be located in the SA/RA ducts, at all fire rated crossoevers (shafts, walls, etc.). The control panel shall be located in such a way that the reset can easily be done. These combination smoke and fire dampers shall be interlocked with the building management system for the fire detection or HVAC and shall trip/close in the event of fire/smoke in the respective zone. Fire damper shall be tested as per ULL- 555 and certified by CBRI. The fire-damper shall be of at least 120 minutes fire-rating complete all as specified and directed.The fire dampers shall meet the following criteria: [a] Bare fire dampers with 400 mm sleeve [b] Control panel actuator, including electrical spring type actuator, remote indication of the fire damper position. [c] Interconnection wire for the fire detection & alarm system with the AHU and the smoke dampers

Item No 29.01 Contd/,,, [d] Sealing any openings around the sleeve of the fire dampers with approved fire sealant as per the specification & recommandations of the manufacturer.

Motorized, spring return type, combination fire and smoke damper

Control panel actuator, including electrical spring type actuator, remote indication of the fire damper position.

THERMAL INSULATION

S & F closed cell elastomeric 19mm thick nitrile rubber insulation with aluminum foil laminated on one side, having thermal conductivity not exceeding 0.037 W/mK at mean temperature of 20° C as per EN 12667, moisture diffusion resistance factor or ‘µ’ value of minimum 7,000 for base insulation material without the foil as per EN 12086, fire performance such that it passes Class 1 as per BS476 Part 7 for surface spread of flame and also fire performance of V0, HB as per UL 94, 1996, density without the foil between 40 to 55 kg/m³. The insulation material shall be FM (Factory Mutual) USA approved and dust & fibre free. The Aluminium foil shall be 60 microns thick and its weight shall be 193 gsm as per EN ISO 2286-2, tensile strength 90 N / 15 mm as per EN ISO 527-3 with elongation > 10% as per EN ISO 527-3 complete all as specified and directed.

Ditto but 13mm thick

ACOUSTIC INSULATION

S & F open-cell engineered 19 mm thick nitrile rubber foam acoustic insulation having good sound absorption, damping and barrier properties, antimicrobial product protection, thermal conductivity not exceeding 0.047 W/mK at 20° C, conforming to EN 12667, density 140-180 kg/m³ and conforming to class 1 rating for surface spread of flame in accordance with BS 476 Part 7 & UL 94 (HB, V-0). The acoustic insulation material shall be free of dust and fibre; it shall pass fungi/mould resistance as per DIN EN ISO 846 method A and bacterial resistance as per DIN EN ISO 846 method C and air erosion resistance test in accordance to ASTM Standard C 1071-05 without any laminate or covering (section 12.7) from an independent accredited testing agency complete all as specified and directed.

Ditto but 13mm thick

SA/RA DIFFUSERS/GRILLES/LOUVERS

Supply, installation, testing & commissioning of removable supply/return air diffusers/grilles or eye ball jet diffusers of extruded aluminum sections duly powder coated with volume control damper complete all as specified and directed.

POWER CABLES

M & L for ISI marked 1.1 kV grade aluminium conductor, XLPE insulated armoured cable 4 core, 16 mm², conforming to IS: 7098 (Part 1)- 1988 having stranded aluminium compact shaped conductor as per Cl. 2, IS: 8130- 1984, PVC inner sheath, single armouring of galvanized steel strip/wire and PVC Type ST- 2 outer sheath conforming to IS: 5831- 1984, including termination complete as specified and directed.

Ditto but 3.5 core, 25 mm²

Ditto 3.5 core, 70 mm²

M & L for earth contuinity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 20 mm X 3 mm copper strip complete all as specified and directed.

M & L for earth contuinity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required GI wire of 4.0 mm diameter complete all as specified and directed.

Dismantling of old unserviceable 3x45 TR AC plant which includes three Nos Compressors with motors, chiller unit, condensor unit, pump sets, pipe manifold, 2x AHU, electrical panels, control cabling, colling tower assembly etc comple and depositing where directed within the periphery of 3 KM

M & L for earthing complete with copper earth plate electrode of 60 cm x 60 cm x 3.15 mm size, buried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below normal ground level, connected to copper strip of size 20 mm x 3 mm as earth lead, by means of bolts, buts, check nuts and washers of galvanised iron or steel, galvanized iron pipe of 40 mm diameter, connected to earthing test point, all as shown in electrical plate No. 5 connected to earthing test point all as specified or indicated including testing on completion and including excavation, earthwork, PCC earth pit of dimensions 550 mm X 550 mm (outer) and 300 mm X 300 mm (inner) and 250 mm deep, with a 10 mm thick CI cover, hinged to CI frame on ground level, GI watering pipe, funnel, etc. as all specified and directed.

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BRITE INDUSTRIES

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somnath engineering corporation

Shree Ayyappa Engineering