SITC of HVAC System Comprising Dx System Equipment Installation Auxiliary and Civil Works and Electrical Works in the Temporary Exhibition Hall at Nehru Science Centre, Mumbai

Amount

Supply, Installation, Testing and Commissioning of HVAC Systems Comprising Dx System Equipment, Installation, Auxiliary & Civil Works and Electrical Works in the Temporary Exhibition Hall at Nehru Science Centre, Mumbai as per specifications enclosed in the NIT document PART - I - DX SYSTEM EQUIPMENT The work includes design, supply, fabrication, Installation, testing, vacuuming, commissioning and handing over of the complete Air-conditioning system. Bidders shall fill in the columns of rate and amount and submit the same along with the all-technical details for AC system.

Condensing units / Outdoor units with Scroll Type Compressor For following capacity Condensers will be installed on rear side of the exhibition centre on SS 304 stand with adequate space for maintenance facility. Refer Technical Specifications for "Anti corrosive" treatment on coil and complete body panels. Rates for ODU shall be quoted accordingly. a) 8.5 TR

INDOOR UNITS: FLOOR MOUNTED AIR HANDLING UNIT Supply of Floor Mounted Air Handling Unit with Thermal Brake Profile as per Technical Specification for following capacity.

a) 19.5 TR / 7440 CFM - 50 mm St. Pr.

b) 30.5 TR / 12900 CFM - 50 mm St. Pr.

c) 33 TR / 13136 CFM - 50 mm St. Pr.

Supply of Expansion Valve, catch all dryer, site glass, controller, wired thermostat, etc., for AHU coil connection with following capacity out door units.

a) 11 TR & 8.5 TR - 1 No. Capacity Out door units

b) 11 TR X 2 Nos. & 8.5 TR X 1 No. Capacity Outdoor units

c) 11 TR X 3 Nos. Capacity Outdoor units

REMOTE CONTROLLER FOR SYSTEM

A) Corded Type (Remote control wire of size 12 C X 0.75 Sq. mm copper flexible wire) with 10 RMT length for each remote.

PART - II - AIR-CONDITIONING SYSTEM INSTALLATION WORK The work includes design, supply, fabrication, Installation, testing, vacuuming, commissioning and handing over of the complete Air-conditioning system Low side work. Bidders shall fill in the columns of rate and amount and submit the same along with confirmation on all-technical details. Installation of Out Door Units. Unloading, lifting, shifting, rigging on rear side of the exhibition centre at on SS Structure (including crane hire charges if required), installation, top up of refrigerant gas and oil, testing, commissioning, handing over and preventive, breakdown and predictive maintenance of outdoor units mentioned in supply section during one calendar year from date of hand over, including supply of SS Stand, anti-vibration pads, mounting fasteners (GI / SS), interconnecting refrigerant joints and refrigerant / oil piping / control cabling for connecting outdoor units with each other:

OUTDOOR UNIT STANDS: IN SS - 304 MATERIAL Supply, fabrication and installation of SS 304 base frame for each outdoor units complete with vibration isolation pads. SS 304 stand shall be fabricated using adequate size angle, channels, plates, etc. Height of each SS 304 stand shall be ≥ 300 mm. ( vender to consider ODU dimensions for fabrication of stand. No variation shall be accepted)

INDOOR UNITS: AIR HANDLING UNIT Unloading, assembling, lifting, shifting, rigging on rear side of the exhibition centre on SS 304 stand / structure including crane hire charges if required. Assembly, Installation, testing, commissioning, handing over and preventive, breakdown and predictive maintenance of following Floor Mounted Double Skin Air Handling Unit of following capacity during one calendar year from date of hand over.

a) 19.5 TR / 7440 CFM - 50 mm St. Pr.

b) 30.5 TR / 12900 CFM - 50 mm St. Pr.

c) 33 TR / 13136 CFM - 50 mm St. Pr.

AHU STANDS: IN SS - 304 MATERIAL Supply, fabrication and installation of SS 304 base frame for following capacity AHU complete with vibration isolation pads. SS 304 stand shall be fabricated using adequate size angle, channels, plates, etc. Height of each SS 304 stand shall be ≥ 300 mm. ( vender to consider AHU dimensions for fabrication of stand. No variation shall be accepted)

a) 19.5 TR / 7440 CFM - 50 mm St. Pr.

b) 30.5 TR / 12900 CFM - 50 mm St. Pr.

c) 33 TR / 13136 CFM - 50 mm St. Pr.

Installation. of Expansion Valve, catch all dryer, site glass, controller, wired thermostat, etc., for AHU coil connection with following capacity Out door units along with vacuuming, pressure testing and commissioning, etc.

a) 11 TR & 8.5 TR - 1 No. Capacity Out door units

b) 11 TR X 2 Nos. & 8.5 TR X 1 No. Capacity Outdoor units

c) 11 TR X 3 Nos. Capacity Outdoor units

INSULATED REFRIGERANT PIPING - Between AHU & Outdoor unit.

AHU STARTERPANEL Powder coated Electrical panel of wall mounted type with out going feeders for AC ODU's, DOL / Star Delta starter for AHU motor, Refrigeration connection kit, Thermostat, etc. Panel shall have interlocking with ODU & AHU Fan Motor and also should have phase indicator digital voltmeter, ammeter, etc..

Supply & Installation of set of Thermostat.

CABLE TRAY:

A) GI perforated type cable tray 300 mm wide for supporting refrigerant piping out side building / exposed area complete with supports.

B) Cover for perforated type cable tray, made out of powder coated 16SWG GI sheet, to protect refrigerant pipe insulate in cable tray of 300 mm wide.

A) GI perforated type cable tray 225 mm wide for supporting refrigerant piping out side building / exposed area complete with supports.

B) Cover for perforated type cable tray, made out of powder coated 16SWG GI sheet, to protect refrigerant pipe insulate in cable tray of 225 mm wide.

A) GI perforated type cable tray 150 mm wide for supporting refrigerant piping out side building / exposed area complete with supports.

B) Cover for perforated type cable tray, made out of powder coated 16SWG GI sheet, to protect refrigerant pipe insulate in cable tray of 150 mm wide.

A) GI perforated type cable tray 75 mm wide for supporting refrigerant piping out side building / exposed area complete with supports.

B) Cover for perforated type cable tray, made out of powder coated 16SWG GI sheet, to protect refrigerant pipe insulate in cable tray of 75 mm wide.

DRAIN PIPING :

Drain Piping - 50 NB U PVC hard pipe having minimum 3 mm wall thickness, insulated with ≥ 9 mm thick elastomeric closed cell Nitrile Rubber insulation material, joints to be sealed with 2" good quality adhesive tape.

Drain Piping - 40 NB U PVC hard pipe having minimum 3 mm wall thickness, insulated with ≥ 9 mm thick elastomeric closed cell Nitrile Rubber insulation material, joints to be sealed with 2" good quality adhesive tape.

Drain Piping - 32 NB U PVC hard pipe having minimum 3 mm wall thickness, insulated with ≥ 9 mm thick elastomeric closed cell Nitrile Rubber insulation material, joints to be sealed with 2" good quality adhesive tape.

First charge of additional refrigerant for entire system, considering total piping. (Total 8 Nos. of circuits / systems)

GSS DUCTING:(FOR SQUARE / RECTANGLE DUCT) As per IS : 655 complete with all accessories viz. Anchor Fastener, Black Painted M S angles, threaded Rod supporting , Neoprine rubber gasket, galvanized hardware, Double canvas connection with 6” zip etc.

a) 24 Gauge.

b) 22 Gauge.

c) 20 Gauge.

d) 18 Gauge.

GSS DUCTING:(FOR ROUND DUCT) As per IS : 655 complete with all accessories viz. Anchor Fastener, Black Painted MS angles, wired supports, Neoprine rubber gasket, galvanized hardware, Double canvas connection with 6” zip etc.

a) 24 Gauge.

b) 22 Gauge.

c) 20 Gauge.

d) 18 Gauge.

PAINTING ON ROUND DUCTING: Entire round ducting inside, outside along with the tray-cover of the Exhibition hall shall be painted with 2 coats of zinc-chromate, silver or zinc paint (Zinc coating not less than120gm/m²).

INSULATED FLEX. DUCTING: Supply & installation of Insulated, Flexible Duct: UL 181, Class 1 Air Duct, coated woven fiberglass fabric supported by helically wound, coated spring-steel wire; fibrous-glass insulation; reinforced metalized vapor-barrier film with necessary connectors.

a) 300 mm Dia. (for 240 mm Dia Jet Nozzles)

b) 350 mm Dia. (for 350 mm Dia Jet Nozzles)

DAMPERS:

(A) GI Volume Control Duct Dampers of opposed blade type with nylon bushes.

(B) Aluminum Black Powder Coated Grille Dampers of opposed Blade type with nylon bushes with black matt finish.

(C) GI Volume Control Round Duct Dampers (Butterfly Type)

POWDER COATED EXTRUDED ALUMINUM JET NOZZLES with Swirl Damper / Butterfly type damper. Nozzles shall be adjustable type for 30° upward and downward to achieve required throw as per site conditions.

a) 150 mm Dia.

b) 240 mm Dia.

c) 350 mm Dia.

POWDER COATED EXTRUDED ALUMINUM GRILLE with opposed blade volume control damper with nylon bushes and black matt finish for required airflow angles.

EXTRUDED ALUMINUM POWDER COATED CONTINUOUS GRILLES with required air flow angle.

ACOUSTIC INSULATION: Plenum / main ducts near AC Unit shall be insulated with 15 mm Thick Closed Cell Elastomeric thermal Insulation material as mentioned in Technical Specifications.

THERMAL INSULATION: EXPOSE DUCTING: (out side of the building) External thermal insulation of ductwork shall be carried out with 19 mm Thk. closed cell elastomeric insulation. Covering of the Rubber Insulation on ducts shall be applied strictly as per the recommendations of manufacturers amended from time to time. However, application procedure shall generally be as mentioned specifications. Finishing on the insulated ducting shall be 22 Gauge Aluminum cladding.

PART - III - AUXILIARY & CIVIL WORK The work includes design, supply, installation of following auxiliary and civil work required for HVAC system. Bidders shall fill in the columns of rate and amount and submit the same along with confirmation on all-technical details.

Dismantling of existing installed 450 mm Diameter wall mounted exhaust fans and stacking them at required location in Nehru science centre premises.

Closing of wall opening of above mentioned exhaust fans with required amount of bricks, sand & plaster with complete finish. i.e. making the wall in good condition.

Making of civil opening in brick wall for Ducts, Jet Nozzles, return air grilles and closing / sealing with required amount of brick, sand, plaster with complete finish.

Making of PCC / Foundation / Civil work for installation of AHU & ODU's as per details shown on drawing.

PART - IV - ELECTRICAL WORK MODIFICATIONS TO THE EXISTING FLOOR STANDING DISTRIBUTION PANEL : Location - in Exhibition Hall The scope of work includes modifications to the existing Floor Mounting Distribution Panel for HVAC system as per the provided specifications & BoQ and based on the site conditions/requirements which also includes fabrication work.

Modifying & extending the existing LT Distribution Panel for accommodating 2 more cubicals for adding 2 Nos. of 63A to 200A FP MCCB as directed with overall same width, identical tier height & front look composition as per the existing panel with colour finish also matching the existing panel.

Providing & erecting 4 Pole MCCB, 415 V, 160A-200A, rated short-circuit breaking capacity 36kA (Ics=100% of Icu), adjustable thermal (overload) setting and fixed magnetic setting with provided leads, provision for installation of shunt/UV/trip alarm contact. MCCB with phase barriers on both sides, insulation withstand capacity 800V, no line-load bias in provided enclosure/existing panel as per specification no. SW-SWR/MCCB including drilling holes in cubicle panel, making connections etc. as required. ( for APFC PANEL in extended Existing Panel )

Removing of existing 63A, 3P/4P MCCB with its inter-connections/ terminations and Providing & erecting 100 A, 4 Pole MCCB, 415 V, rated short-circuit breaking capacity 36kA (Ics=100% of Icu), adjustable thermal (overload) setting and fixed magnetic setting with provided leads, provision for installation of shunt/UV/trip alarm contact. MCCB with phase barriers on both sides, insulation withstand capacity 800V, no line-load bias in provided enclosure/existing panel as per specification no. SW-SWR/MCCB including drilling holes in cubicle panel, making connections etc. as required. ( for 3 Nos. of AHUs)

APFC PANEL The scope of work includes DMSITCM of 75 kVAr, 440 V, 3 phase, 50 Hz., Contactor Logic & Intelligent Relay micro APFC passive filter panel, consisting of suitable steps (Min. 8) of Heavy Duty APP type capacitor units with 7% Detuned (harmonic filter) Copper reactors of suitable rating , APFC panel shall be compliance to IEC 61439 and power quality IEC 61921 standard as per specification no CP-ED/APFC

HIBAY LIGHTS The scope of work includes design, supply & installation of the Lighting Fixtures including its interconnection with suitable sized 3 core Multistrand Cu. flecible cables from the point upto fitting through flexible pvc conduit of required size. Supply, installation, testing and commissioning of indoor type Low/High bay light fittings including all accessories and including necessary supports, accessories and hardware (including supply and fixing flexible wires from holder to fixtures hardwares etc.) as per site requirement for follwing lights including making Scofffolding or other arrangement to reach the top of shed at around 25' to 30' feet height with safety precaustions, etc. complete.

100 W, WH Ceiling Suspended High bay LED Light, Luker Make Model No -LHBY -100, WH Col., Reflector type

CABLES : Supply, handling, laying, effecting proper connections testing and commissioning of following sizes of 1.1 KV grade BIS Marked PVC/XLPE insulated Armoured Aluminium/Copper conductor cables. The cables shall be laid as per PRIL instruction or on cable trays laid over MS supports cable racks or fixing on walls including clamping the cable to supports in an approved manner as required and as per final instruction as given by consultant/site engineer, etc. complete with earthing as specified for continuous earthing along with cable. (The cost of cable trays or ladders, excavation & back filling of trenches will be measured separately. The cables should be properly dressed and tied to the cable trays using appropriate cable ties.. The unit cost of the cable shall include clamps, fasteners etc. as required for proper installation. Earthing will be measured separately and need not be quoted under this item).

Supplying, erecting & terminating FRLS XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 4 core 50 sq. mm. aluminium conductor complete erected with glands & lugs, on wall/ trusses/pole or laid in provided trench/ pipe as per specification no. CB-LT/AL ( For Existing Panel To -75 Kvar APFC PANEL)

Supplying, erecting & terminating FRLS XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 4 core 35 sq. mm. aluminium conductor complete erected with glands & lugs, on wall/ trusses/pole or laid in provided trench/ pipe as per specification no. CB-LT/AL (Existing Panel To AHU 2 &AHU 3 STARTER PANEL )

Supplying, erecting & terminating FRLS XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 4 core 10 sq. mm. copper conductor complete erected with glands & lugs, on wall/ trusses/ pole or laid in provided trench/ pipe as per specification no. CB-LT/CU (AHU Starter Panel to 11 TR ODU )

Supplying, erecting & terminating FRLS XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 4 core 6 sq. mm. copper conductor complete erected with glands & lugs, on wall/ trusses/ pole or laid in provided trench/ pipe as per specification no. CB-LT/CU ( From AHU Starter Panel to 8.5 TR ODU & AHU Starter Panel to AHU Motors )

Supplying, erecting & terminating FRLS XLPE insulated, galvanised steel formed wire armoured (strip) cable 1100 V, 4 core 25 sq. mm. aluminium conductor complete erected with glands & lugs, on wall/ trusses/pole or laid in provided trench/ pipe as per specification no. CB-LT/AL ( From Existing Panel to AHU 1 Starter Panel )

Supply, Installation, testing and commissioning of the Communication cabling from AHU Starter Panel to each ODU with the necessary fittings. (4Cx1.5sqmm Copper conductor flexible cable Starter Panel to 8.5 TR & 11TR ODU )

Supply, Installation, testing and commissioning of the Communication cabling from AHU Starter Panel to Thermostate installed in exhibition centre with the necessary fittings. ( AHU Starter Panel to Thermostate 2Cx1.5sqmm Copper conductor flexible cable)

Supply, Installation, testing and commissioning of the Communication cabling from AHU Starter Panel to AHU Switch installed in exhibition centre with the necessary fittings. (3Cx1.5sqmm Copper conductor flexible cable)

CABLE TRAY Supplying & 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%, in convenient sections joined with connectors, suspended from the ceiling with GI suspenders including GI bolts & nuts etc. complete as required and also including all accessories like Bends, Tees, Cross Members, Reducers, etc. as may be required as per the site conditions. Note: The perforated GI cable trays shall be covered with powder coated 16 gauge GI sheet in the desired colour/shade

50 mm wide x 50 mm depth x 1.2 mm thickness. ( For APFC Panel Cable Laying )

150 mm wide x 50 mm depth x 1.2 mm thickness.With cover for other cables laying

EARTHING SYSTEM

Earthing with G.I. earth G.I earth plate of size 600mm X 600mm X 6mm thick (as per IS 3043) including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metres long , etc. with charcoal/coke and salt as required.

Providing and fixing G.I. tape/flat of 25mm x 3mm thick on parapet or surface of wall for lightning conductor complete as required.(For horizantal or vertical run) including all arrangements of scaffolding/ladders, etc. to reach on tope/terrace of the building/structure.

Supplying and laying 8 SWG G.I. wire at 0.50 metre below ground level or fixing on wall with all accessories for conductor earth electrode, incl. connection/ termination with GI thimble etc. as required.

CONDUITS & WIRING FOR LIGHTS

Supplying and erecting HMS PVC conduit FRLS grade 25 mm dia. with PVC accessories on wall /ceiling as per specification No: WG-MA/CON.

Supplying and erecting mains with 3x1.5 sq.mm FRLSH copper PVC insulated wire laid in provided conduit/trunking/inside pole/Bus bars or any other places as per specification No: WG-MA/BW (For Light Point Wiring)

V S Engineering

ANSHUTECH AIRCONDITIONING PVT LTD

md irfan ahmed khan