REPLACEMENT OF CENTRAL AC PLANTS AGAINST BER AT MPO AND TTD BLDG AND REPLACEMENT OF SUMMER APPLIANCES AGAINST BER ITEMS FOR THE YEAR 2014-15 and 2015-16 AT ITR CHANDIPUR

Amount

SECTION-I (CENTRAL AC PLANT)

Supply , install , commissioning and testing of Water Cooled scroll Chillers with multi compressors, comprising of Semi - Hermetic/ Open Type Compressors, DX Evaporator, Shell and Tube Condenser, suitable expansion device, suitable for operation on R-134a /R - 407c/R - 410a refrigerants and of nominal capacity 35 TR or next higher capacity as per availability in market ( 2 Working + 1 Stand by) with following parameters complete all as specified & directed. Chilled water in : 12.8° C Chilled water out : 7.2° C Chilled water flow : 84 USGPM Fouling factor : 0.0001 FPS Condenser Condenser water in : 27° C Condenser water out : 32.2° C Condenser water flow : 140 USGPM Fouling factor : 0.00025 FPS Rest as per particular specifications.

CHW PUMP SETS (Primary Pump) Supplying, erection, testing and commissioning of Centrifugal End suction type primary chilled/hot water pump set capable of delivering required flow rate for plant operation as per OEM specification/requirement of water against a head 12 Mtr. Each pump shall comprise the following as required as per specifications & as directed. 1 No. - Split Casing type pump with bronze impeller, S.S Shaft, CED Coated C.I body and mechanical seal. Duly insulated with 80 kg/cum density resin bonded fibre glass cladded with aluminium sheets of 0.5mm thickness and properly clamped to pump in two semi-circular sections as per specifications. 1 No.- Suitable HP, TEFC squirrel cage induction motor with class 'F' insulation, IP -55 Protection, Eff-2, 1450 RPM synchronous speed, operating on 415 volts ± 10%, 3 phase, 50 Hz A.C. supply. (2 Working + 1 Stand by )

COND. PUMP SETS Supplying, erection, testing and commissioning of Centrifugal End suction type primary chilled/hot water pump set capable of delivering required flow rate for plant operation as per OEM specification/requirement of water against a head 12 Mtr. each pump shall comprise the following as required as per specifications & as directed. 1 No. - Split Casing type pump with bronze impeller, S.S Shaft, CED Coated C.I body and mechanical seal. Duly insulated with 80 kg/cum density resin bonded fibre glass cladded with aluminium sheets of 0.5mm thickness and properly clamped to pump in two semi-circular sections as per specifications. 1 No.- Suitable HP, TEFC squirrel cage induction motor with class 'F' insulation, IP -55 Protection,Eff-2, 1450 RPM synchronous speed, operating on 415 volts ± 10%, 3 phase, 50 Hz A.C. supply. (2 Working + 1 Stand by )

Chilled/Hot Water Secondary Pumps (variable pumping system) Supplying, erection, testing and commissioning of package type End Suction type secondary chilled/hot water pumping system with VFD and all pump system controller, comprising of: a) Pumping set with CED Coated cast Iron casing, Bronze impellers with stainless steel shaft, connected to suitable capacity TEFC ventilated induction motor with class 'F' insulation, EFF-2, 3 Phase, 2900 RPM, suitable for 415 volts ± 10%, 3 phase, 50 Hz A.C. supply. b) Duly insulated with 80 kg/cum density resin bonded fibre glass cladded with aluminium sheets of 0.5mm thickness and properly clamped to pump in two semi-circular sections as per specifications. c) Unless otherwise specified, renewable wear ring of bronze shall be furnished atleast on the casing. d) Variable secondary Panel should have a dedicated programmable logic controller with individual drive for each pump and with required no. of sensors and the entire unit has to be procured from the Pump manufacturer to ensure the smooth operation of the system. The Programmable logic controller shall be able to control minimum 1 Pump and maximum of 4/6 Pumps, Automatic cascade control of pumps, automatic sequence change, Friction loss compensation, pump status shall be there. Display shall be graphical type with minimum 320 pixels X 240 Pixels VGA display with backlight. Drive should have rated input frequency 50 Hz and output frequency range of 0.5 to 132 Hz. An IP41/IP55 NEMA Standard powder coated steel enclosure for Basement/Roof top, with sufficient capacity of cooling fan shall house all the electrical control components.

e) Microprocessor based control panel shall have suitable hardware & software so that it can be integrated directly to IBMS with standard communication open protocol using BACnet / Modbus as well as open IP. f)(All the Pump set will have their control panel with respect to the motor rating). g) All pumps to be provided with separate variable frequency drives. Control panel should also consist of cooling fan. h) One panel for each job will be provided (for a set of two/three pumps) and the panels should be installed adjacent to each other. j) The pumps should be suitable for heating as well as chilled water circulation. k) Lot-Mounting frame work with anti vibration pads. l) Electronic Differential Pressure Transmitters as required. m) suitable flanged suction and delivery headers in C-Class MS n) Complete set system to be mounted on a common MS base frame and shall follow following duty with following no. of pumps:

Secondary chilled water pump sets Flow Rate : same as per primary CHW pump sets as per item No. 2 Head : 32 Metre WC (2 Working + 1 Stand by )

Hot water pump sets Flow Rate : 36USGPM Head : 32 Metre WC (2 Working + 1 Stand by )

CHILLER PLANT MANAGER Supply, Installation, testing & commissioning of Chiller Plant Manager for systematic operation of AC plant comprising of: 3 Nos. as per Chiller plant capacity Water Cooled Chillers with VFD (2 Working + 1 Stand By) , 3 Nos. Primary Chilled Water pumps( 2 Working +1 Stand By) pumps & Motorized Valves etc.3 Nos. Variable Secondary Chilled Water pumps with VFDs ( 3 Working +1 Stand By) pumps & Motorized Valves etc. 3 Nos. Cooling Tower( 1 Working +1 Stand By) all size hot water generators, all size AHUs Chiller Plant Manager as specified & described below. Workstation as required (Intel core i7 processor with 4 GB RAM, 1GB Graphic Card and 500B HDD, Windows 7 64 bit.) including 21" LED Monitor, keyboard, mouse, and all required accessories complete including Latest version of MS Office and Antivirus software and as required. Network supervise controller unit (Imported UL listed) for connecting all controllers to it and software integration and transferring data to P.C. The processors shall be 32 bit, 50 MHZ, shall be able to store reports and event logs & on BACnet / IP protocol. Dedicated Chiller Plant manager software having inbuilt application. Programmable controller (Imported UL Listed) having processors of 32 Bit 50 MHZ, LON CHIP) BACnet compatible/Modbus/ IP protocol, controller for Pumps, Cooling Tower . The controller shall support easy Graphical Programming and shall be able to store the programme in the controller rather than store in the PC. It should include Lockable Mounting Cabinets duly powder coated, connector strip, internal wiring & relays etc.

CPM should be able to communicate/interface with main IBMS. All required software and hardware to be provided. Any other hardware required etc. FIELD DEVICES & SENSORS FOR CHILLERS & PUMPS Immersion type Temperature Sensor with thermowell Outside Temp. & RH Sensor Level Switch Flow sensor/ Flow meter Differential Pressure Sensors & Differential Pressure Transmitter (for zone differential pressure sensing) LOT OF CABLES, CONDUITS & CABLE TRAY Cabling from all instruments, controls & valves to DDC and communication cabling from DDC to central equipment complete with cable gland, earthing, supports & PVC conduits etc. Surface laid or cable tray laid cables shall be ferruled and tagged, and shall use lugs for termination at both ends. Wherever multicore cables are used, the price shall include the cost of Marshalling Boxes (MS Powder Coated with Elmex Terminals) to connect the multicore cables to 2 core cables for termination in equipments.

Supply, installation, commissioning and testing of induced draft top discharge counter flow type FRP Cooling Tower of capacity as per chiller plant capacity (2 Working + 1 Stand by ) (Rectangular / Round bottle shape) with FRP body and base, water spray headers, cooling tower fills, fan with motor, supporting base frames, as per manufacturer's standard instructions, as specified & directed.

HOT WATER GENERATOR Providing and installing electrically operated Hot Water Generator of 25 kW, 36 GPM (2 working + 1 standby) nominal capacity having 1mm thick stainless steel lining with heaters arranged in banks and controlled by electronic controller and thermostats so that following flow rate hot water at 70° C and with nominal variations could be supplied including 75mm thick fibre glass/ mineral wool/ insulation finished with 1.25mm thick G.I. sheet cladding including necessary electrical panel board, having suitable incoming & outgoing switch gears for boiler and pump automatic controls including inlet and outlet connections for water, foundation for boiler, as required complete as per specifications & as directed.

All same as item No.7.00 above but of capacity 25kW, 28 GPM (2 working + 1 standby)

Supplying, installing, testing and commissioning of factory built Floor mounted double skin type air handling units made of 45 mm thick panels consisting of pre plasticized G.I. casing of thickness 0.8 mm outside layer and 0.8 mm plane inside layer with polyurethane foam (PUF) insulation of density 32 kg/m³ factory injected between them by injection moulding machine, complete with blower section with blower DIDW Backward curved centrifugal fan of 60 mm WC static pressure, 6 row deep cooling coil , & 2 row deep Heating coil section with aluminium finned copper tubes (tube thickness not less than 0.5mm), filter sections with 50 mm thick washable synthetic type Pre filters having efficiency 90% down to 10 micron and provision for Fine filters having efficiency 99% down to 5 micron, provision for ewating coil, belt drive package with TEFC drive motor suitable for 415 ± 10% volts, 50 Hz, 3 phase, A.C supply, complete with drain connections with drain valve, stainless steel drain pan, thermometers and pressure gauge at the inlet and outlet of the coils, necessary vibration isolation arrangement etc, of 23500 CFM , 70 TR capacity complete as per specifications & directed.

Supply, installation, commissioning and testing of Variable Frequency Drives with IP 55 enclosures and mains disconnect switch as specified & directed 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. Note: (i) Cost of temperature sensor and control cables not included. (ii) Separate Starter not required for switching on motor and pump 4 KW.

Supplying, laying/ fixing, testing and commissioning of chilled water piping of following nominal sizes inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with 80 kg/cum density resin bonded fibre glass or 144 Kg/ cum density mineral wool (non Combustible) pipe section insulation covered with a layer of 120 gm/sqm polythene sheet (vapour barrier) and finally applying 0.63mm aluminium sheet cladding complete with type3 , grade 1 roofing felt strip(as per IS:1322 as amended up to date ) at joints and repairing of damage to building etc. as per specifications and as required & directed. Note: The Pipes of sizes 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 pipe-s of 400 mm dia and above .

80 mm dia (50 mm thick insulation)

65 mm dia (50 mm thick insulation)

50 mm dia (50 mm thick insulation)

40 mm dia (50 mm thick insulation)

32 mm dia (50 mm thick insulation)

25 mm dia (50 mm thick insulation)

Supplying, fixing, testing and commissioning of following valves, strainers, gauges & connections in the chilled water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications & as directed.

BUTTERFLY VALVE (MANUAL) 80 mm dia with C I body SS Disc, Nitrile Rubber Seal & O-Ring PN 16 pressure rating for chilled water/hot water circulation

BUTTERFLY VALVE (MANUAL) 50 mm dia with C I body SS Disc, Nitrile Rubber Seal & O-Ring PN 16 pressure rating for chilled water/hot water circulation .

Ball Valve 25 mm dia

NON - RETURN VALVE 65 mm dia with dual plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating.

Industrial type pressure gauges with gun metal / brass valves complete all as specified and as directed.

Industrial type thermometers complete all as specified and as directed

Y-STRAINER 65 mm dia of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation.

Y-STRAINER 50 mm dia of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation.

Y-STRAINER 80 mm dia of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation.

Y-STRAINER 25 mm dia of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation.

BALANCING VALVE WITH BUILT IN MEASURING FACILITY 50 mm dia with C I body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled / hot water circulation

MOTORISED BALANCING VALVE WITH BUILT IN MEASURING FACILITY 50 mm dia with C I body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled / hot water circulation .

MOTORISED BALANCING VALVE WITH BUILT IN MEASURING FACILITY 65 mm dia with C I body flanged construction with EPDM coated disc with long pitch with protected out pipe insulation & PN 16 pressure rating for chilled / hot water circulation .

Flexible Connection (Neoprene Rubber Type) 50 mm dia

Flexible Connection (Neoprene Rubber Type) 80 mm dia

Insulated M.S Closed Expansion tank of 500 Ltrs. Supply installation testing commissioning of Closed Expansion tanks for chilled water of M.S. construction and of adequate capacity, to contain 200% of the maximum expansion likely to take place in the system. The tank shall be insulated and be complete with valves, drain, Safety Valve, PN16 and Pressurisation Unit complete with double pump (2CMH, 25mWC), IP55 control panel, pressure transmitter, flow meter, interconnecting piping & wiring, PN16, complete as specified & directed

PRESSURE INDEPENDENT BALANCING CUM CONTROL VALVE WITH THERMOSTAT/HIGH RANGEABILITY VALVE WITH THERMOSTAT FOR AHU Supply, Installation, Testing and Commissioning of 80 mm dia.(636 LPM) sizes electronic, self-balancing, pressure independent type dynamic balancing valve with integrated 2 way modulating control valve in a single body. The actuator shall be capable of accepting up to 10V DC and up to 20 mA electric signal and shall provide similar transduced feedback output to control system. Maximum close off pressure shall not be less than 6 Bar for up to 50 mm valves and 7 Bar for 65 mm & above. Valves should have pressure rating of 25 Bar minimum, complete as specified & directed.

Condensate Drain Pipe Supplying, fixing, testing and commissioning of 32 mm dia UPVC drain piping with all fitting such as bends, tees etc. necessary clamps, adequate support duly insulate with 9 mm nitrile rubber insulation complete as specified & directed.

Supply installation testing commissioning of Pot strainer for 100mm Dia pipe complete all as specified and as directed .

Supply installation testing commissioning of Manual Air - purge valve of 15mm dia complete as specified & directed

Supply installation testing commissioning of Air and Dirt Separator with complete accessories for 100mm dia pipe complete as specified & directed

CONDENSER WATER PIPE Supplying, fixing, testing and commissioning of condenser water pipes of 100mm dia 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. complete as specified & directed 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.

VALVES WITHOUT INSULATION Supplying, fixing, testing and commissioning of following valves, for condenser water circulation complete as specified & directed

BUTTERFLY VALVE (MANUAL) with C I body SS disc nitrile sheet & O - ring & PN 16 pressure rating as specified. 80 mm Dia

NON - RETURN VALVE with dual plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating as 80 mm dia

DUCT AND AIR DISTRIBUTION DUCTING. Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required & directed.

Sheet thickness 0.63 mm

Sheet thickness 0.80 mm

Sheet thickness 1.00 mm

Sheet thickness 1.25 mm

Supply, installation, balancing and commissioning of fabricated at site GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required & directed. Note:- Duct only for in case of critical fittings to be fabricated at site

Sheet thickness 0.63 mm

Sheet thickness 0.80 mm

Sheet thickness 1.00 mm

Sheet thickness 1.25 mm

Supply, installation, testing and commissioning of GI volume control duct damper complete with neoprene rubber gaskets, nuts, bolts, screws linkages, flanges etc., complete as specified & directed.

Supplying & fixing of powder coated extruded aluminium Supply Air Grills with aluminium volume control dampers complete as specified & directed.

Supplying & fixing of powder coated extruded aluminium Return Air Grills with louvers but without volume control dampers complete all as specified and directed.

Blank

Supply, installation, testing and commissioning of following Motorized (ON-OFF Type) duct mounted GI volume control damper/actuator with enthalpy sensor and necessary control wire (minimum 1.5 Sqmm) for integration within AHU room complete all as specified and directed.

Damper

Actuator

Supply, fixing, testing and commissioning of fire dampers in supply air duct/main branch and return air path as and where required of required sizes including 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 all as specified and directed.

Fire Damper

Actuator

INSULATION Supply and fixing of acoustic lining of supply air duct and plenum with 25 mm thick resin bonded glass wool having density of 32 kg/m³, with 25 mm X 25 mm GI section of 1.25 mm thick, at 600 mm centre to centre covered with Reinforced Plastic tissue paper and 0.5 mm thick perforated aluminium sheet fixed to inside surface of ducts with cadmium plated nuts, bolts, stick pins, CPRX compound etc. complete all as specified and directed.

Supplying and fixing of 25mm thick duly laminated with aluminium foil of mat finish closed cell Nitrile rubber (Class "O") insulation on existing duct after applying suitable adhesive for Nitrile rubber. The joints shall be sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation complete all as specified and directed.

Supply of XLPE insulated, armoured heavy duty electric cable 1100 volts grade, of following cross-sectional area complete all as specified & directed.

6 Sqmm 4 core copper armoured XLPE cable

4 Sqmm 4core copper armoured XLPE cable

35 Sqmm 3.5 core aluminium armoured XLPE cable

300 Sqmm 3.5 core aluminium armoured XLPE cable

MV CABLE END TERMINATIONS Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade complete all as specified & directed

3½ Core X 35 Sqmm

3½ Core X 300 Sqmm

Supplying and making indoor end termination with brass compression gland and Copper lugs for following size of PVC insulated and PVC sheathed / XLPE Copper conductor cable of 1.1 KV grade complete all as specified & directed

4 Core X 6 Sqmm

4 Core X 4 Sqmm

M & L for earthing complete with GI plate electrode of size 600 x 600 x 6 mm thick burred directly in ground vertically at a depth not less 2.25 mtr below normal ground level with top edge of earth plate at a depth not less than 1.5 mtr below normal ground level surrounded from all sides by 1.5 cm thick packed layer of charcoal dust and common salt filling in alternate layers and making electrode connection by using GI strip of size 25X4 mm at two points by means of bolts nuts check nuts and washers made of brass and earth strip protected by light grade 40 mm dia GI Pipe up to test point and connected to main switch board are main controlled board with provision of GI pipe medium grade 20mm bore for watering including funnel wire mass RCC pit cover and PCC Chamber pit with 1:2: 4 type B1 (including excavation earth work) all as specified and shown on plate No 3 of SSR Part-1 including testing complete all as specified & directed. Note:-Cost of Main earthing lead from earth electrode to test point up to 7.5 meter is included in the quoted rate.

Supply and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required complete all as specified and directed

Supply and fixing 6 SWG dia G.I. wire on surface or in recess for loop earthing as required complete all as specified and directed.

CABLE TRAY Supplying and 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 G.I. suspenders including G.I. bolts & nuts, etc. complete all as specified and directed.

150 mm width X 50 mm depth X 1.6 mm thickness

300 mm width X 50 mm depth X 1.6 mm thickness

Supply and fixing of following size of perforated Hot Dipped Galvanised Iron cable tray "bends" (galvanisation not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. complete all as specified and directed.

150 mm width X 50 mm depth X 1.6 mm thickness

300 mm width X 50 mm depth X 1.6 mm thickness

Supply and fixing of following size of perforated Hot Dipped Galvanised Iron cable tray "Tee" (galvanisation not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. complete all as specified and directed.

150 mm width X 50 mm depth X 1.6 mm thickness

300 mm width X 50 mm depth X 1.6 mm thickness

Supply and fixing of following size of perforated Hot Dipped Galvanised Iron cable tray "Cross member"(galvanisation not less than 50 microns) with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. complete all as specified and directed.

150 mm width X 50 mm depth X 1.6 mm thickness

300 mm width X 50 mm depth X 1.6 mm thickness

Supply and fixing following size of perforated Hot Dipped Galvanised Iron cable tray "Reducer" (galvanisation not less than 50 microns) with perforation not more than17.5%, in convenient sections, joined with connectors, suspended from the ceiling with G.I. suspenders including G.I. bolts & nuts, etc. complete all as specified and directed.

150 mm width X 50 mm depth X 1.6 mm thickness

300 mm width X 50 mm depth X 1.6 mm thickness

Supply , install , commissioning and testing of Water Cooled scroll Chillers with multi compressors, comprising of Semi - Hermetic/Open Type Compressors, DX Evaporator, Shell and Tube Condenser, suitable expansion device, suitable for operation on R-134a/ R-407c/R - 410a refrigerants and of nominal capacity 30 TR or next higher capacity as per availability in market ( 2 Working + 1 Stand by) with following parameters complete all as specified & directed. Chilled water in : 12.8° C Chilled water out : 7.2° C Chilled water flow : 72 USGPM Fouling factor : 0.0001 FPS Condenser Condenser water in : 27° C Condenser water out : 32.2° C Condenser water flow : 120 USGPM Fouling factor : 0.00025 FPS Rest as per particular specifications

CHW PUMP SETS (Primary pump) Supplying, erection, testing and commissioning of Centrifugal End suction type primary chilled/hot water pump set capable of delivering required flow rate for plant operation as per OEM specification/requirement of water against a head 12 Mtr. each pump shall comprise the following complete as required as per specifications & directed. 1 No. - Split Casing type pump with bronze impeller, S.S Shaft, CED Coated C.I body and mechanical seal. Duly insulated with 80 kg/cum density resin bonded fibre glass cladded with aluminium sheets of 0.5mm thickness and properly clamped to pump in two semi-circular sections as per specifications. 1 No.- Suitable HP, TEFC squirrel cage induction motor with class 'F' insulation, IP -55 Protection,Eff-2, 1450 RPM synchronous speed, operating on 415 volts ± 10%, 3 phase, 50 Hz A.C. supply. (2 Working + 1 Stand by )

COND. PUMP SETS (Primary pump) Supplying, erection, testing and commissioning of Centrifugal End suction type primary chilled/hot water pump set capable of delivering required flow rate for plant operation as per OEM specification/requirement of water against a head 12 Mtr. each pump shall comprise the following complete as required as per specifications & as directed. 1 No. - Split Casing type pump with bronze impeller, S.S Shaft, CED Coated C.I body and mechanical seal. Duly insulated with 80 kg/cum density resin bonded fibre glass cladded with aluminium sheets of 0.5mm thickness and properly clamped to pump in two semi-circular sections as per specifications. 1 No.- Suitable HP, TEFC squirrel cage induction motor with class 'F' insulation, IP -55 Protection,Eff-2, 1450 RPM synchronous speed, operating on 415 volts ± 10%, 3 phase, 50 Hz A.C. supply. (2 Working + 1 Stand by )

Chilled/Hot Water Secondary Pumps (variable pumping system) Supplying, erection, testing and commissioning of package type End Suction type secondary chilled/hot water pumping system with VFD and all pump system controller, comprising of: a) Pumping set with CED Coated cast Iron casing, Bronze impellers with stainless steel shaft, connected to suitable capacity TEFC ventilated induction motor with class 'F' insulation, EFF-2, 3 Phase, 2900 RPM, suitable for 415 volts ± 10%, 3 phase, 50 Hz A.C. supply. b) Duly insulated with 80 kg/cum density resin bonded fibre glass cladded with aluminium sheets of 0.5mm thickness and properly clamped to pump in two semi-circular sections as per specifications. c) Unless otherwise specified, renewable wear ring of bronze shall be furnished atleast on the casing d) Variable secondary Panel should have a dedicated programmable logic controller with individual drive for each pump and with required no. of sensors and the entire unit has to be procured from the Pump manufacturer to ensure the smooth operation of the system. The Programmable logic controller shall be able to control minimum 1 Pump and maximum of 4/6 Pumps, Automatic cascade control of pumps, automatic sequence change, Friction loss compensation, pump status shall be there. Display shall be graphical type with minimum 320 pixels X 240 Pixels VGA display with backlight. Drive should have rated input frequency 50 Hz and output frequency range of 0.5 to 132 Hz. An IP41/IP55 NEMA Standard powder coated steel enclosure for Basement/Roof top, with sufficient capacity of cooling fan shall house all the electrical control components.

item No. 45.00 Contd/... e) Microprocessor based control panel shall have suitable hardware & software so that it can be integrated directly to IBMS with standard communication open protocol using BACnet / Modbus as well as open IP. f) (All the Pump set will have their control panel with respect to the motor rating). g) All pumps to be provided with separate variable frequency drives. Control panel should also consist of cooling fan. h) One panel for each job will be provided (for a set of two/three pumps) and the panels should be installed adjacent to each other. j) The pumps should be suitable for heating as well as chilled water circulation. k) Lot-Mounting frame work with anti vibration pads. l) Electronic Differential Pressure Transmitters as required. m) suitable flanged suction and delivery headers in C-Class MS n) Complete set system to be mounted on a common MS base frame and shall follow following duty with following no. of pumps:

Secondary chilled water pump sets Flow Rate : same as per primary CHW pump sets as per item No. 43.00 Head : 32 Metre WC (2 Working + 1 Stand by )

Hot water pump sets Flow Rate :28USGPM Head : 32 Metre WC (2 Working + 1 Stand by )

Supply, installation, commissioning and testing of induced draft top discharge counterflow type FRP Cooling Tower of capacity as per chiller plant capacity (2 Working + 1 Stand by )(Rectangular / Round bottle shape) with FRP body and base, water spray headers, cooling tower fills, fan with motor, supporting base frames, as per manufacturer's standard instructions, as specified & directed.

Air Handling Units (AHU) Supplying, installing, testing and commissioning of factory built Floor mounted double skin type air handling units made of 45 mm thick panels consisting of pre plasticized G.I. casing of thickness 0.8 mm outside layer and 0.8 mm plane inside layer with polyurethane foam (PUF) insulation of density 32 kg/m3 factory injected between them by injection moulding machine, complete with blower section with blower DIDW Backward curved centrifugal fan of 60 mm WC static pressure, 6 row deep cooling coil , & 2 row deep Heating coil section with aluminium finned copper tubes (tube thickness not less than 0.5mm), filter sections with 50 mm thick washable synthetic type Pre filters having efficiency 90% down to 10 micron and provision for Fine filters having efficiency 99% down to 5 micron, provision for ewating coil, belt drive package with TEFC drive motor suitable for 415 ± 10% volts, 50 Hz, 3 phase, A.C supply, complete with drain connections with drain valve, stainless steel drain pan, thermometers and pressure gauge at the inlet and outlet of the coils, necessary vibration isolation arrangement etc., complete as per specifications & directed of following capacities: 8000 CFM , 28 TR (For Ground Floor)

Supplying, installing, testing and commissioning of factory built Ceiling suspended double skin type air handling units made of 25 mm thick panels consisting of pre plasticized G.I. casing of thickness 0.6 mm outside layer and 0.6 mm plane inside layer with polyurethane foam (PUF) insulation of density 32 kg/m3 factory injected between them by injection moulding machine, complete with blower section with blower DIDW Backward curved centrifugal fan of 60 mm WC static pressure, 6 row deep cooling coil , & 2 row deep Heating coil section with aluminium finned copper tubes (tube thickness not less than 0.5mm), filter sections with 50 mm thick washable synthetic type Pre filters having efficiency 90% down to 10 micron and provision for Fine filters having efficiency 99% down to 5 micron, provision for ewating coil, belt drive package with TEFC drive motor suitable for 415 ± 10% volts, 50 Hz, 3 phase, A.C supply, complete with drain connections with drain valve, stainless steel drain pan, thermometers and pressure gauge at the inlet and outlet of the coils, necessary vibration isolation arrangement etc., complete as per specifications of following capacities:

2600 CFM, 8 TR (For First Floor)

7000 CFM, 24 TR (For First Floor)

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. Note: (i) Cost of temperature sensor and control cables not included. (ii) Separate Starter not required for switching on motor and pump

PRESSURE INDEPENDENT BALANCING CUM CONTROL VALVE WITH THERMOSTAT/HIGH RANGEABILITY VALVE WITH THERMOSTAT FOR AHU Supply, Installation, Testing and Commissioning of following sizes electronic, self-balancing, pressure independent type dynamic balancing valve with integrated 2 way modulating control valve in a single body. The actuator shall be capable of accepting up to 10V DC and up to 20 mA electric signal and shall provide similar transduced feedback output to control system. Maximum close off pressure shall not be less than 6 Bar for up to 50 mm valves and 7 Bar for 65 mm & above. Valves should have pressure rating of 25 Bar minimum, complete as specified & directed.

50 mm dia (181 LPM)

40 mm dia (137 LPM)

25 mm dia (60 LPM)

Supply, installation, balancing and commissioning of fabricated at site M.S sheet metal (22 G) rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. complete as per approved drawings and specifications & as directed.

SECTION-II (MANNING & OPERATION DURING DEFECT LIABILITY PERIOD)

Manning & Operation of Central type AC plant 3X30 TR (2W + 1SB) installed at TTD Bldg. of ITR Chandipur during defect liability period with 03 shifts/day (08 hours per Shift) (0600 hrs to 1400hrs, 1400 hrs to 2200 hrs & 2200 hrs to 0600 hrs) with deployment of one operator per shift (ITI/ diploma holder having adequate experience in the respective trade) during the following defect liability period, starting from satisfactory completion of Phase-I test complete all as specified and directed as under:-

Twelve (12) Months immediately after completion of phase-I test

Twelve (12) Months after completion of item 55.01 above

Manning & Operation of Central type AC plant 3X35 TR (2W + 1SB) installed at MPO Bldg of ITR Chandipur during defect liability period with 02 shifts/day (08 hours per Shift) (0600 hrs to 1400hrs & 1400 hrs to 2200 hrs ) with deployment of one operator per shift (ITI/ diploma holder having adequate experience in the respective trade) during the following defect liability period, starting from satisfactory completion of Phase-I test complete all as specified and directed as under:-

Twelve (12) Months immediately after completion of phase-I test

Twelve (12) Months after completion of item 56.01 above

NOTES (For items 55 to 56.02 above) : The rates quoted for operation and maintenance of installations will include the following :- (i) Providing optimum manpower. Minimum qualification of all the manpower employed will be ITI passed in respective field of work with minimum 3 years experience. The contractor will submit the details of manpower employed before commencement of work. (ii) Duty timings will be as follows. For round the clock duties: 1st shift - 06:00 - 14:00 Hrs, 2nd shift - 14:00 - 22:00 Hrs, 3rd shift - 22:00 Hrs - 06:00 Hrs. For General duty/one shift - 08:30 - 16:30 Hrs. (iii) Al the tradesmen shall wear proper uniform with firm name and shoes at the installation, colour of uniform will be directed by Engineer in Charge. (iv) Daily cleaning and maintenance of equipment and inside the installation shall be carried out by the staff employed by contractor without any extra cost to the department and if fail to do the maintenance penalty @ 500/- per day imposed upon the contractor & decision of GE will be final & Binding in this regard. (v) Quoted rate is deemed to be inclusive of all consumables including topping up required refrigerant gas, compressor oil required for maintaining the plant at good working condition and desired condition of 22ºC ± 3ºC and relative humidity 50 % ± 5%. (vi) Daily consumables such as grease, gland rope, cotton waste etc. shall be provided by contractor at installations and the unit rate quoted shall be inclusive of the same (vii) The contractor shall be responsible for safe custody of all the plants / equipment under his contract.

NOTES (For items 55 to 56.02 above) contd.. : (viii) Contractor shall solely responsible for any mishappening / accident and loss to life due to negligence of the workmen engaged in the work. No compensation shall be admissible on this account. (ix) The Contractor shall sign inventory of the equipment/Bldg of MES installation before commencement of work any damage/theft to the Govt. property, the contractor will be responsible and recovery to this effect will be made as decided. (x)The operators should have a sound knowledge of plants equipment . (xi) During currency of contract If there is any change of staff, same to be informed in writing to the accepting officer well in advance. The Accepting Officer reserves the right whether to change the staff. However he can remove any staff on the basis of Non Performance. (xii) Contractor shall be liable to comply with all the relevant rules and regulations as issued and revised by Labour commission time to time regarding wages. No extra/additional payment shall be claimed by the contractor on revision of wages. (xiii) The operator shall not leave the installation without reliever and Installation shall not be left unmanned in any case. If any staff found absent, Three times of the min wages prescribed as per the Govt charges as penalty (xiv) Weekly Area cleaning including cutting of grass, etc. all around the installations as directed otherwise penalty @ 500/- per day imposed or decision of GE will be final & Binding.

NOTES (For items 55 to 56.02 above) contd.. : (xv) Any abnormality observed to be immediately intimated to the maintenance team with intimation to the concerned MES Personnel / in charge. (xvi) Minimum required tools, T&P, safety equipment etc. always available with the operator(xvii) Log sheets to be maintained regularly in binding book with respect to detailed parameters of AC parameter such as DBT, WBT, RH, Power consumed, etc. and signed by the contractor him self or his authorised rep all as directed by the Engr-in-Charge (xviii) First aid box including medicines shall be kept in the installations (xix) All consumable items such as refrigerant Gas, compressor Oil, Greece, including descaling with chemicals, servicing of plants. AHU , Ducts , Filters, Condensing Pipes and Coil, Cooling Tower, fire damper, Heaters etc. required for operation of plants shall be provided by contractor at his own cost as per the manufacturer's instruction and direction of GE during period of manning and operation, cost of the same shall be deemed to include in the unit rate quoted by the contractor. (xx) All the personnel employed for operation and maintenance should be in proper uniform with firm name and safety outfits as per relevant norms. They may also be required to be deployed in any other locations other than mentioned above as per the site requirements and exigencies. (xxi) The rates are deemed to include minimum fair wages, EPF, ECIS etc. to paid to the employed personnel as per the rules enforced by the Govt time to time and payment of all taxes as per govt rule.

NOTES (For items 55 to 56.02 above) contd.. : (xxii) The rates quoted by the tenderer shall be deemed to include wages including revised rate of variable Dearness Allowance (VDA) along with all taxes, statutory levies/duties such as Labour Welfare tax, Govt Service Tax (GST), EPF, ESI, Bonus, etc. as applicable on date and levied by the Central/State Govt payable under respective statutes as applicable from time to time. For this account nothing extra shall be admissible. (xxiii) In case of any changes in the minimum wages or any statutory wage component as per the Applicable Laws during the Contract period, Service provider has to cater for the same in this quote. In this regard, no extra claim is admissible. (xxiv)The estimated cost of Sec-II of BOQ (Srl item No. 55.00 to 56.06) based on minimum fair wages including applicable allowances/Bonus is Rs 49,97,910.10. If total quoted amount for Sec-II of BOQ remain less than estimated cost, an amount equal to difference between quoted amount and estimated cost shall be deposited by the contractor in the form of FDR( In addition to the performance security) pledged in favour of GE along with performance security as security for payment of the minimum wages to manpower and same shall be release only after completion of works under Sec-II of BOQ.

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HVAC Engineering Co

Parksons Engineering Company Pvt Ltd

national engineering