Ancillary electrical works for Setting up of 50 Bedded Critical Care Hospital Block at Malda Medical College and Hospital, Malda. (Electrical Work)_SITC of Central Air Conditioning Plant (Project ID_ HF252635393S000)

SUB-HEAD 1--Water Cooled Screw Chiller

Supply, installation, testing and commissioning of floor-mounted AHRI Certified water cooled screw-type chiller machine complete with VFD (Variable Frequency Drive), twin screw type compressor, water-cooled Shell & Tube type condenser, Shell & Tube horizontal flooded type evaporator with carbon steel shell and seamless copper tubes i/c suitable foundation/ mounting structure made of RCC/MS Structure i/c anticorrosive paint, anti vibration pad, power control cable and connection inter connection etc. as per design approved by engineer-incharge, interconnected copper refrigerant piping and wiring, vibration Isolators, gauge panel, automatic safety controls, flow switch at evaporator and condenser with R-134A/Ecofriendly refrigerant gas .

The refrigerant flow control shall use an electronic expansion valve. The chiller shall be designed for a Water Side working pressure of 150 PSI and hydraulically tested at 1.3 times of design pressure. A number of properly spaced baffles shall be provided for maintaining optimum water velocity and heat transfer and the tubes shall be adequately supported. The system shall be in confirmation to IS : 16590 ammended upto date.

Chilled water Leaving Temp. (6.67 deg. C) Chilled water Entering Temp. (12.2 deg. C) Evaporator fouling factor = 0.018 m2. ⁰C/kW Condenser water Entering Temp. (32.2 deg. C) Condenser water Leaving Temp. (36.4 deg. C) Suitable for Seismic Zone and Altitude as per location/site. --- (All are working)

120 TR (Actual) BEE 3 Star Rated with ISEER 6.2(Minimum) [Make: Blue Star/Carrier/Voltas/Hitachi/Mitsubishi/Trane/York/Dunham Bush]

SUB-HEAD 2--FRP INDUCED DRAFT COOLING TOWER

Supply, Installation, testing and commissioning of Induced Draft counter flow cooling Towers(CTI approved). The Cooling Tower shall be of Fiber

Reinforced Plastic (FRP) Construction. The casing, basin/sump, fan deck and fan cylinder shall be of FRP, with direct driven fans, Galvanized hardware complete with sump and drain connection with suitable valve, PVC Honey comb fill, louvers, drift eliminator complete with spray nozzle having self rotating sprinklers, steel ladder, Isolating switch and other accessories to make it fully operational and maintaince National Accreditation Board for Testing and Calibration Laboratories (NABL) & positioning of cooling tower at Terrace of Building. Axial Flow Fan, weather proof IP 55 and Direct driven. The fan motor shall be premium efficiency IE3 class , as per IS 12615

Range of CT: 6 deg C. Designed Duty Conditions :-EWT, LWT, D/ considering WBT 28.5°C /WBT as directed by Engineer-in-charge. ( Note - Cooling tower size depends on the ambient temperature conditions , contractor must check the required design temperature). --- (i) 200 TR ii) 600 USGPM with 30M head (All are working) Make- Advance/Paharpur/Bell

SUB-HEAD 3--PRIMARY CHILLED WATER PUMP

SITC of End Suction Back Pull out Type primary chilled water pump with CI casing, Bronze Impeller, Sleeve mechanical seal along with TEFC pump motor, Each comprising of Suitable HP, TEFC Squirrel Cage Induction Motor with class "B" insulation, 1450 rpm speed, suitable for operatation on 415 ± 10% volts, 3 phase, 50 Hz A.C. supply. The Pump / Motor shall confirm to IE2 Standard(minimum) and Efficiency 75% minimum and as per ISI & NBCC guideline (overall pumping system) for minimum 320 USGPM flow rate under suitable head 15M (Min), mounted and aligned on a common MS base and, drain assy., vibration isolators complete in all respects duly insulated with 32mm thik Nitrite Rubber, mounted on common MS base plate, complete as per specifications etc. as required. The pump motor shall have IP55, all weather proof, isolator with lockable arrangement. [Head to be calculated as per site condition] (All are working) Make- [Kirloskar/KSB/GRUNDFOSS/BEACON]

SUB-HEAD 4--SECONDARY CHILLED WATER PUMP

SITC of End Suction Back Pull out Type Secondary variable flow chilled water pump with CI casing, Bronze Impeller, Sleeve mechanical seal along with TEFC pump motor, duly insulated with 32mm thik Nitrite Rubber , Each comprising of Suitable HP, TEFC Squirrel Cage Induction Motor with class "B" insulation, 1450 rpm speed, suitable for operatation on 415 ± 10% volts, 3 phase, 30-50 Hz A.C. supply. The Pump / Motor shall confirm to IE2 Standard (minimum) and 75% minimum Efficiency (Overall pumping system) for minimum 320 USGPM flow rate under suitable head 40M (Min) mounted and aligned on a common MS base and, drain assy., vibration isolators complete in all respects with insulation. [ Head to be calculated as per site condition] The pump motor shall have IP55, all weather proof, isolator with lockable arrangement. Each pump shall have Variable Frequency Drive, with IP_-54 panel enclosure and having a bypass mode. (All are working) Make- [Kirloskar/KSB/GRUNDFOSS/BEACON]

SUB-HEAD 5--VFD CONTROL PANEL FOR SECONDARY CHILLED WATER PUMP

The VFD shall comply with IEEE-519 and having built-in input chokes, for harmonic supression on current (THID) less than 30 % to 35% only and voltage harmonic (THVD) less than 5%. This indicated harmonics shall be at drive input side. Standard logic applicable for the secified pump. The drive shall be having open protocole connectivity (Modbus/Bacnet/N2/FLN) and having a bypass mode with Star-Delta starter including S&F of VFD of suitable rating ( MAKE: ABB/DANFOSS/SIEMENS) , MCCB as incomer of suitable rating, C/O Switch overload protection, SPP, phase srequency protection and connection with suitable copper wire with ON,OFF & Trip indication, connectors etc. in SS enclosure with 2 nos ventilation fans (1W+1S) through 24x7 time switch to be fixed on wall as per direction of EIC. Make- [ABB/Blue Star/Danfoss]

Variable Frequency Drive (VFD) of suitable capacity as per the rating of secondary CW pump-motor with consideration of starting current (Input: 3-phase, 440 V, 50 Hz +/- 2.5% AC input & output: 3-phase, 0-415V, 0-50 Hz AC). The VFD shall comply with IEEE-519 and having built-in input chokes, for harmonic supression on current (THD) less than 30 % to 35% only and voltage harmonic (THVD) less than 5, i.e, harmonics shall be at drive input side. (All are working) (drawings & documents with data sheets to be approved by he EIC before delivery) Make- [ABB/Blue Star/Danfoss]

Logic Controller for the pumps in a suitable sheet steel enclosure (IP-54) with lockable hinged door with both side dry powder coated painted. (drawings & documents with data sheets to be approved by he EIC before delivery) Make- [Kirloskar/KSB/M&P/Grundfos]

SITC of DP sensor for Variable Pumping application & optimization with automation of the system. (drawings & documents with data sheets to be approved by he EIC before delivery) Make-[Honeywell/Johnson/Siemens]

Signal cabling by 4Cx1.5 sqmm shielded copper conductor cable (FRLS) between DP Sensor to Secondary Pump Controller complete with necessary connections. [Finilex/Havells/Polycab/ or as per approved by EIC]

SUB-HEAD 6--CONDENSER WATER PUMPS

SITC of End Suction Back Pull out Type Condenser Water Pumps with CI casing, Bronze Impeller, Sleeve mechanical seal along with TEFC pump motor, Each comprising of Suitable HP, TEFC Squirrel Cage Induction Motor with class "B" insulation, 1450 rpm speed, suitable for operatation on 415 ± 10% volts, 3 phase, 30-50 Hz A.C. supply. The Pump / Motor shall confirm to IE2 Standard (minimum) and 75% minimum Efficiency (Overall pumping system) for minimum 600 USGPM flow rate under suitable head 30M (Min) mounted and aligned on a common MS base and, drain assy., vibration isolators complete in all respects.[ Head to be calculated as per site condition] The pump motor shall have IP55, all weather proof, isolator with lockable arrangement. [Head to be calculated as per site condition & to be approved by EIC ] (All are working) Make- [Kirloskar/KSB/GRUNDFOSS/BEACON]

S&F of Expansion tank, HDPE, 2000 Ltr, with 1 no float valves & 3 nos 50 mm dia butterfly valves with 50 mm thick thermocol insulation having 16 kg/cum density and sand cement plaster. [ For Makeup chilled water line].Make- As per approved of EIC

S&F of Condensate chilled water storage tank, HDPE, 3000 Ltr, with 1 no float valves & 3 nos 50 mm dia butterfly valves with 50 mm thick thermocol insulation having 16 kg/cum density and sand cement plaster. [For Condensate chilled water storage ]. Make- As per approved of EIC

S&F of Make Up Water Tank, HDPE, 3000 Ltr, with 1 no float valves & 3 nos 50 mm dia butterfly valves complete in all respect. Make- As per approved of EIC

SUB-HEAD 7--FLOOR MOUNTED AIR HANDLING UNITS

Supply, Installation, Testing and commissioning of factory built floor mounted chilled water double skin type horizontal/vertical air handling units made of 25mm thick panels consisting of pre plasticized G.I. casing of thickness 0.8mm outside layer and 0.8 mm inside layer with polyurethane foam (PUF) insulation factory injected between them by injection moulding machine, complete with blower section with blower suitable for static pressure as required, minimum 2 bend GSS/PVC eliminators,cooling coil section with aluminium finned copper tubes (tubes thickness not less than 0.5mm) belt drive package with TEFC drive motor of efficiency class IE3 suitable for 415 + 10% volts, 50Hz, 3 Phase AC supply suitably designed for varialbe frequency drive applications, drain connections, stainless steel (18G) drain pan with PUF insulation, 150 mm dia. dial type pressure gauges (2 nos.)and industrial type thermometers (2 nos.) at the inlet and outlet of coil, auto purge valve wherever required, necessary vibration isolation arrangement etc. complete as per specification and of following capacities. The AHU shall be complete with VFD.The VFD shall be of IP20 rating. Make-[Caryaire/Ethos/Edgetect/Zeco/Trane]

10200 CMH 6 row deep Two stage filtration, 65 mm TSP.

Cooling capacity - 7000 CFM, 65 mm static pressure

Cooling capacity - 5000 CFM, 65 mm static pressure

Cooling capacity - 3000 CFM, 125 mm static pressure

SUB-HEAD 8-- CEILING SUSPENDED AIR HANDLING UNITS

Supply, Installation, testing and commissioning of Factory built ceiling suspended chilled water double skin type horizontal/vertical air handling units of following capacity, made of 25mm thick panels consisting of pre plasticized G.I. casing of thickness 0.8mm outside layer and 0.8 mm inside layer with Polyurethane Foam (PUF) insulation factory injected between them by injection moulding machine, complete with blower section with blower suitable for static pressure as required, minimum 2 bend PVC eliminators, cooling coil section with aluminum finned copper tubes (tubes thickness not less than 0.5mm) cooling coil of 4 row deep, filter section with 50mm thick metal viscous/ washable synthetic type air prefilters, belt drive package with Totally Enclosed Fan Cooled (TEFC) drive motor of efficiency class IE3 suitable for 415 ± 10% volts, 50Hz, 3 Phase AC supply suitably designed for Variable Frequency Drive (VFD) applications, drain connections, stainless steel (18G) drain pan with PUF insulation, 150 mm dia. dial type pressure gauges (2 nos.)and industrial type thermometers (2nos.) and industrial type thermometers (2 nos.) at the inlet and outlet of coil, auto purge valve wherever required, necessary vibration Isolation arrangement, noise level shall not exceed 70 dBA.

AHU shall be AHRI/Eurovent certified, fan shall be AMCA certified etc. Complete as per CPWD specification/drawings and as directed by Engineer-in-Charge. (Total static pressure considered is max. 50 mm WC). The AHU shall be complete with VFD.The VFD shall be of IP20 rating. (As per item no- 11.1 of DSR 2025 Volume - II) Make- [Caryaire/Ethos/Edgetect/Zeco/Trane]

6800 CMH Two stage filtration.

Cooling capacity - 7000 CFM, 65 mm static pressure

Cooling capacity - 6000 CFM, 65 mm static pressure

SUB-HEAD 9-- Heater Bank, FCU, Ducting, Piping, Valves etc.

SITC of Aluminium laminar bench with perforated sheet cover to accommodate inside HEPA filter bank along with necessary support as per standard of minimum 6 ft X 8ft dimension for OT Area as per approved drawing necessary flange joints of air duct shall have to be fixed with sealant adhesive to prevent leakage. Make: SAIL/TATA

SITC of Cabinet inline Fan shall be of DIDW, forward/ backward curved centrifugal impeller fitted with maintenance free external rotor motor, belt / direct drive type. Impeller material shall be Galvanized Steel. Motor shall be suitable for external power supply 200~220V/50Hz/Single Phase. Make: Kruger/Nicotra/Systenair/Caryaire

500 CFM, 20MM Static for OT Exhaust

Chilled water In-duct type Indoor FCU units with compact 3 Row Cu. cooling coil, multi-speed fan motor, the blower shall be dynamically balanced and designed for silent operation, the filters shall be washable synthetic media type arranged for convenient cleaning and replacement. The Unit should be equipped with Ball Valves with/without Stainer & 2-way mixing Valve with Thermostat as required. The unit is to be supplied with chorded remote controller. Make:As per approved of EIC

3.5 TR (1400 CFM)

3.0 TR (1200 CFM)

2.0 TR (800 CFM)

1.5 TR (600 CFM)

Supply, Erection, Testing & Commissioning of MS ERW Chilled Water (Supply & Return) Piping (Class C) complete with flange , Tee, bend & other necessary fittings including welding joints & MS supports and TF quality thermocol density 16kg/cum insulation with chicken wire mesh sand cement plaster (Pipes upto 150 NB shall be Heavy Grade as per IS: 1239 Part I and from 200 NB & above Pipes shall be as per IS: 3589 of specified thickness. Make: Jindal/TATA/ as per approved by EIC

200mm NB (Insulation 50 mm thick)

150mm NB (Insulation 50 mm thick)

125mm NB (Insulation 50 mm thick)

100mm NB (Insulation 50 mm thick)

80 mm NB (Insulation 50 mm thick)

65 mm NB (Insulation 50 mm thick)

50mm NB (Insulation 50 mm thick)

40mm NB (Insulation 50 mm thick)

32mm NB (Insulation 50 mm thick)

25mm NB (Insulation 50 mm thick)

BUTTERFLY VALVE SITC of Butterfly valve (Manual) with C.I. body SS Disc, Nitrile Rubber seal & O-Ring PN-16 pressure rating for chilled water/hot Water circulation including insulation as specifications. Make: AUDCO/Intervaive/Leader/Levcon/Advance/Rapid cool/Flowcon/Crawley & Ray/Honeywell

50 mm dia

65 mm dia

100 mm dia

125 mm dia

BALL VALVE S & F of Ball Valve. Make: AUDCO/Intervaive/Leader/Levcon/Advance/Rapid cool/Flowcon/Crawley & Ray/Honeywell

25 mm dia for Drain

NON-RETURN VALVE SITC of Non - Return Valve with duel plate of CI body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating for chilled/hot water circulation including insulation as specified. Make: AUDCO/Intervaive/Leader/Levcon/Advance/Rapid cool/Flowcon/Crawley & Ray/Honeywell

125 mm dia

Y-STRAINER SITC of Y-Strainer of Ductile CI body flange ends with Stainless Steel strainer for chilled/hot water circulation including insulation as specified. Make: ANERGY/DS Engineering/Rapid Cool/Emerald/Sant

125 mm dia

BALANCING VALVE SITC of Balancing valve with built in measuring facility with CI body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled/hot water circulation as specified. Make: Advance/Flowcon/Honeywell

50 mm dia

65 mm dia

125 mm dia

50 mm dia

65 mm dia

S&F of Rubber Bellow Expansion Joints Make: Armacell/K-Flex/Video Flex or as per approved by EIC

125 mm dia pipe

S & F of Auto Air Vent with Ball Valve Make:ANERGY

S & F of water Flow Switch (Make : Honeywell)

DIAL TYPE PRESSURE GAUGE S & F of the following Water line PRESSURE GAUGE as per following categories, sizes and quantities complete with providing flanges, nut-bolts, gasket and welding arrangements. Bourden type pressure gauges of 100mm dial of suitable range shall be provided.The water pressure gauge shall be made of stainless steel grade SS304. All the pressure gauges shall be complete with ball valves & SS Siphon and confirming to IS:3624. Make: Feibig/ H Guru

DIAL TYPE THERMOMETER S & F of the following Water line INDUSTRIAL TYPE THERMOMETER, as per following categories, sizes and quantities complete with providing all fixing accessories. Make: EMERALD/ FIEBIG/ H Guru

Supply and Laying of Rigid PVC Drain Pipe (Medium Class)with respective fittings ,proper supports at 5 feet interval and duly insulated with 6 mm thick closed cell nitrile rubber insulation. Make: As per approved by EIC.

Supply and fixing of Flexible double Canvas connection in between each FCU & Duct (Custom Make or As per direction of EIC)

Supply & fixing of Powder coated extruded Aluminium supply/return air grilles without volume control dampers. Make: Ravi Star/ Dynacraft/Caryaire

Supply & fixing of GI Coller Damper Make: Ravi Star/ Dynacraft/Caryaire

Supply & fixing of Powder coated extruded Aluminium return air diffuser without volume control dampers. Make: Ravi Star/ Dynacraft/Caryaire

Supply & fixing of powder coated extruded Aluminium Supply air diffuser with volume control damper. Make: Ravi Star/ Dynacraft/Caryaire

Supply, installation, testing and commissioning of Opposed blade GI Duct Damper of 18 SWG GI sheet and frame. Make: Ravi Star/ Dynacraft/Caryaire

Supply, installation, testing and commissioning of Fire Dampers 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. Make: Ravi Star/ Dynacraft/Caryaire

Fire Damper

Actuator

SITC of GI Duct of Class - VIII grade for supply/ return air duct along with site fabricated plenum for supply and return air with necessary supports, flanges etc. as required and as per IS 655 and IS -277 standards of following gauges. Make: Beardsell/Calcutta Packaging/Thermowell

24 SWG thick

22 SWG thick

20 SWG thick

SITC of AL Duct of for supply/ return air duct along with necessary supports, flanges etc. as required and as per IS standards of following gauges. For OT Only. Make: Sail/TATA

22 SWG thick

DUCT ACCOUSTIC INSULATION Supply and fixing of acoustic lining of supply air duct and plenum with 10 mm thick class "O" open cell nitrile rubber insulation. Make: As per approved by EIC

DUCT THREMAL INSULATION Supply and fixing of 19mm thick thickness duly laminated aluminium foil of mat finish closed cell nitrile rubber (Class “O”) insulation on supply & Return air duct after applying suitable adhesive for nitrile rubber. Make:Armacell/ K-Flex/ Video Flex

Supply and fixing of Insulation for external ducting (OT) 75mm thick TF quality expanded polyesterent slab having density of 16Kg/CuM covered with vaporbarrier with chicken wireness and finished with 12mm sand cement plaster. Make:As per approved by EIC

Supply & Fixing of underdeck insulation with 50mm thick, 16Kg/Cu Mtr. TF quality Expanded polysterene slab Make: As per approved by EIC

SUB-HEAD 10--Supplying & Laying of Cable

Supply & Delivery of 1.1 kV grade, XLPE insulated. PVC sheathed, steel Armoured Al. conductor Cable of the following size, and conforming to IS: 7098(Part-I):1988/ 5831:1984/ 3975:1970/ 10810:1984 /8130:1984/ 10418:1982 as amended upto date, in respect of component materials and tests. Make: Pollycab/ Finolex/Havells

4 Core 150 Sqmm Sqmm

3 Core 16 Sqmm Sqmm

3 Core 10 Sqmm Sqmm

Supply & Fixing of perforated GI cable tray with perforation not more than 17.5% suspended from ceiling incl. S&F GI connector, 6mm dia MS suspender, bolts & nuts, steel fastener etc. as required of the following size. Incl. Al painting of MS support. Make: As per approved by EIC

100x50x1.25mm (18SWG) With out angle iron support

200x50x1.25mm (18SWG) With 25x25x3mm angle iron support

600x50x1.25mm (18SWG)

S & Laying of 1.1 KV Grade PVC/ XLPE insulated, PVC sheathed cable, copper unarmoured control cable incl. to laid on wall surface by suitable clamping, proper glanding & finishing the cable ends with solderless sockets for following cables Make: Pollycab/ Finolex/Havells

7 Core 1.5 Sq. Sq.mm XLPE round copper Cable

3 Core 1.5 Sq. Sq.mm XLPE copper Cable

4 Core 2.5 Sq. Sq.mm XLPE copper Cable

SUB-HEAD 11 -- EARTHING INSTALLATION

Supplying & fixing earth busbar of galvanized (Hot Dip) MS flat 40 mm x 6 mm on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required. Make: As per approved by EIC

Connecting the equipments to earth busbar including S & F 8 SWG GI (Hot Dip) wire of size as below on wall/floor with staples buried inside wall/floor as required and making connection to equipments with bolts, nuts, washers, cable lugs etc. as required and mending good damages. Make: As per approved by EIC

Charges for cutting wall/floor for entry of different sizes duct & pipe lines including mending good the damages including painting with wall matching colour and removal of rubbish as per direction of EIC. Make: As per approved by EIC

Supplying, fabrication & fixing of M.S. Angle/M.S C channel of necessary size for placing the indoor AHU units & necessary support structure of Duct arrangement with mending goods damaged to the original finish as per direction of the EIC. Make: As per approved by EIC

Add 18% GST (on Item No. 01.00 to 48.00).

Add 1% CESS (on Item No. 01.00 to 49.00).

N.B.: 1) Sl. No. 49.00 is variable depending on the total cost of the actual work on which 18% GST to be calculated during measurment of the work (Item No. 01.00 to 48.00). 2) Sl. No. 50.00 is variable depending on the total cost of the actual work on which 1% CESS to be calculated during measurment of the work (Item No. 01.00 to 49.00).