SPECIAL REPAIR AND REPLACEMENT OF BER CENTRALISED AC PLANTS UNDER GE(NW) MANKHURD

Amount

DISMANTLING & REMOVAL OF EXISTING EQUIPMENT Dismantling all the parts and components of existing central AC plant of following capacity and consisting of following major components & relocation in the Premises/storeyard as allocated by Engr-in-charge. Scroll chillers Chilled Water Pumps Cooling Water Pumps Pipes and valves Cooling Towers Main Chiller Panel, cabling and wiring etc AHUs & ducting

Note- Capacity mentioned above are approximate. - After dismanteling the plant room and other building structure damaged or disturbed so, shall be made good and duly prepared including all civil works as may be required for installation of new air conditioning plants and machineries as per given scope of work here under.

CENTRAL AIR CONDIONING SYSTEM Supply, Installation, Testing, Balancing and Commissioning of Central Air-Conditioning plant and air conditioning sub systems as per scope of work given in the following items and sub items of work to maintain design temperature of 23±2°C and humidity of 60±5% at the given buildings and as shown on drgs and based on other conditions as given in the User Data sheet and all as required as per the standard code of practice in the given field. Note: Care has been taken to include all items as per below given scope of works, however in case any item of work civil or electrical or mechanical not specifically specified but essentially required for successful and efficient completion and commissioning of air conditioning system shall be procured and fitted in the system to achieve the targetted and optimum performance, the cost of which is deemed to be included in the quoted tender rates against each item and as a whole for the air conditioning of given buildings in this tender.

CHILLERS. (1W + 1S)

Water Cooled Inverter Scroll Chiller Package Supply, Installation, Testin and Commissioning of Inverter Scroll Chillers complete with Hermetic Compressor, R-134A or R-410A or R-407C Refrigerant, Motor, Water Cooled Condenser, Insulated Chiller, Integral acoustic insulation for the entire chiller to reduce noise level, Differential pressure switch, Victaulic coupling, Electronic expansion valve, Flow switch at Chiller & Condenser, Power control and microprocessor based control system, Vibration Isolator, Integral Refrigerant piping & wiring, Accessories as required and called for Automatic and safety Control mounted in central Console Panel, Necessary Cabling & Earthing Strip & All mounted on a Steel frame complete & Factory tested at test bed. Operating Voltage 415 V + 15 %, 50 c/s, 3 Phase, AC supply and in accordance with following specifications:- Chilled Water O/I Temp - 7°C / 12°C Cooling Water I/O Temp - 32.2°C / 37.8°C Chiller Fouling Factor - 0.000044 m² °C/W Condenser Fouling Factor - 0.000018 m² °C/W Part load energy efficiency at AHRI Relief ->6 Minimum COP at AHRI Relief - 4.8 Sound Pressure Level @ 3m should not exceed 75 db(A) Maximum ΔP across Evaporator ≤ 3.0 mwc Maximum ΔP across Condenser ≤ 8.0 mwc

(a) Chiller capacity (actual at design parameters) - 24 TR [at AWS-1/2/3 AC Plant]

(b) Chiller capacity (actual at design parameters) - 45 TR [at P-5 BLDG AC Plant]

Notes: [i] Following chiller accessories will be provided with the chiller systems Restrained Spring Isolators - Vibration Isolator Of Approved Make as Required. Spring elements shall have a lateral stiffness greater than 1.2 times the rated vertical stiffness and shall be designed to provide a minimum of 50% overload capacity. Non-welded spring elements shall be polyester powder coated, and shall have a 1000 hr rating when tested in accordance with ASTM B-117. - Suitable for Chiller Operating Weight - 8 nos - Suitable for Chilled Water & Cooling Water Pumps & their Operating Weight - 16 nos [i] Mapping shall be required for all critical points displayed on the chiller control panel. The chiller shall be BMS compatible and shall have RS485 / RS232 serial communication protocol.

Supply, Installation,Testing and Commissioning of Single Arch Rubber Bellow for Chillers and Pumps complete with Control Guide Assembly

(a) Single Arch Rubber Bellow for Chillers and Pumps for 65 mm Dia

(b) Single Arch Rubber Bellow for Chillers and Pumps for 80 mm Dia

(c) Single Arch Rubber Bellow for Chillers and Pumps for 100 mm Dia

COOLING TOWER

Supply, Installation, Testing and Commissioning of FRP, induced Draught Counter flow rectangular/circular Cooling Tower(CTI Certified) with direct driven fan and motor with requisute water connections and float valves etc as Per Specification with following operating parameters : Certification- CTI certified Wet Bulb Temp. - 28.3°C Entering Water Temp. - 37.8°C Leaving Water Temp. - 32.2°C

(a) Cooling Capacity - 30 TR, Flow Rate - 95 GPM

(b) Cooling Capacity - 60 TR, Flow Rate - 198 GPM

Notes:- Necessary foundation, Fabrication & Installation of MS structure for cooling towers as per OEM recommendation is deemed included in the quoted rates.

CHILLED WATER DISTRIBUTION SYSTEM (WITH INSULATION)

Chilled Water Pumps with the following parameters Supply, Installation, Testing and Commissioning of Monoblock Pump, IE-3 motor rating, Primary Centrifugal pump sets with Cast Iron casing & bronze Impeller & Shaft seals with TEFC motor suitable for 3 Phase, 415 V +/- 10 %, 50 Hz, AC Power supply, Necessary Cabling & Earthing Strip, mounted on common base frame etc. The pump shall be duly insulated, as per specifications.

(a) Technical Data : (1W+1S) - With variable Frequency Drive (VFD) Controller Water Quantity - 62.4 GPM Static Head - 24 meters Speed - 1450 RPM Impeller - Bronze

Note: The VFD for the chilled water pump for AWS1/2/3 bldg plant shall be duly programmed/calibrated to function in accordance with the variable chilled water flow requirement in the system as modulated by the PIBCV valves in AHUs. All controls, wirings, sensors, controollers shall be deemed to be included in the quoted rates.

(b) Technical Data : (1W+1S) Water Quantity - 117 GPM Static Head - 20 meters Speed - 1450 RPM Impeller - Bronze

Chilled Water Piping: Supplying, Laying/Fixing, Testing and Commissioning of following nominal sizes of chilled piping including flanges, gaskets and bends/tees or fittings as required inside the building (with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc.) duly insulated with closed cell elastometric nitrile rubber of minimum 45 Kg / cu m density, Material shall have flamabillity class V-0 as per UL 94, thermal conductivity 0.037 W/MK or better at 20 deg mean temperature class 'O' insulation applied by suitable adhesive complete including repairing of damage to building etc. as per specifications and as required complete in all respect. 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 upto 350 mm dia. and from minimum 7mm thick MS sheet for pipes of 400 mm dia and above.Closed Cell Class ‘O’ Nitrile rubber with plain tubing & separate layer of Glass Cloth

(a) 80mm dia.(44mm thick insulation)(Layer-1:19+Layer2:25 With GC)

(b) 65mm dia.(44mm thick insulation)(Layer-1:19+Layer2:25 With GC)

(c) 40mm dia.(44mm thick insulation)(Layer-1:19+Layer2:25 With GC)

Note: 1. In case the chw pipe is run over ground on concrete pedastals or laid in ground, the insulation will be nitrile rubber as per above however the final covering shall be of either 26 swg aluminium sheet duly tapped, screwed and stainless steel stripd on external sheet sheet or non abraisive AC application cloth fiber of appropriate thickness dule covered and bound over the nitrile insulation. 2. Cost of above arrangements as may be applicable is deemed to be included in quoted rates.

Drain Piping : Supply, Installation, Testing and Commissioning for Drain of M.S. 'B' class piping confirming to IS: 1239/3569 heavy class chilled water piping including all necessary fitting like anchor fasteners, pipe supporting frame structure, couplings, seamless bends, elbows, Tees, union, reducers, expander ASA 150 ISRF flanges, CAF gaskets, nuts & bolts etc. insulated with 13mm thickness Nitrile Rubber as per specifications.

Butterfly Valve: Supplying, Fixing, Testing and Commissioning Butterfly valves with CI body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled Water water circulation as specified and with Insulation As per Specification

Ball valves: Supply, Installation, Testing & Commissioning of heavy duty valves PN-16 rated for all valves, except for AHU valve station which shall be with PN-10 Rating valves as specified and adequately supported with reured supports, nuts boltsgasket etc and shown on the drawing complete with Insulation As per Specification:

3-Way Diverting ON/OFF Valve: Supply, Installation, Testing & Commissioning of insulated 3 way ON/OFF valves of 80mm dia. (P-5 Bldg AHU) forged brass body in a single body, flow regulation cartridge assembly shall be precision ground, 304 SS and shall be available in three KPaD control range, minimum flow range shall be capable of being activated by minimum 10 KPa & shall be capable of controlling flow with in ± 5% of rated flow. The actuator shall be for ON/OFF operation of valve & shall be suitable for 230 ± 10% V & 50 Hz. The valve shall work in tandem with thermostat control box for precise control of the supply air to achieve requisite temperature inside the given space fitted with sensors in return air and contactors/breakers as required & control wiring.

PIBCV: Supply, Installation, Testing and Commissioning of 40mm (ASW 1/2/3 AHUs) electronic, self-balancing, Pressure Independent Type Dynamic Balancing Valve (PIBCV) with integrated 2 way modualating control valve in a single body. The actuator shall be capable of accepting upto 10V DC and upto 20mA electric signal and shall provide similar transduced feedback output to control system. Maximum close off pressure shall not be less than 6 Bar for upto 50 mm valves and 7 Bar for 65 mm & above. Valves should have pressure rating of 25 Bar minimum

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 with Insulation As per Specification:

(a) 80mm dia

(b) 65mm dia.

(c) 40mm dia.

NON-RETURN VALVE with dual plate of CI body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating for chilled / hot water circulation including insulation as specified.

(a) 80mm dia.

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

(a) 80mm dia.

(b) 65mm dia.

Providing and fixing in position the industrial type Pressure Gauges with gun metal / brass valves complete as required

Providing & fixing in position the mercury in glass industrial type Thermometers

Miscellaneous: (a) Supply, Installation, Testing and Commissioning of Automatic Automatic air vent for heating, cooling and refrigation, high discharge capacity, brass body and coverstainless steel internal components, Maximum working pressure 16 bar Air discharge pressure: 6 bar - 15/25mm dia.

OPEN EXPANSION TANK : Supply, Installation, Testing & Commissioning of Open expansion tank 3/5 layered as per the specification complete with Heavy duty float valves, accessories & insulation with nitrile rubber of 25mm thickness .

(a) Capacity - 300 litres

(b) Capacity - 200 litres

Note: The expansion tank shall be installed at highest level in the system by providing new MS support structure as per requirement cost of which is deemed to be included in the above quoted rates.

Supply, Installation, Testing & Commissioning of Chilled Water Flow Switches Notes: All valves and fittings/ fixtures shall be suitable for PN 16 rating. All motorized valves (butterfly, three / two way and ball valves) actuators shall be "BMS" compatible All chilled water shall be duly insulated

CONDENSOR WATER DISTRIBUTION SYSTEM

Cooling Water Pumps with the following parameters : Supply, Installation, Testing and Commissioning of Monoblock Pump, IE-3 motor rating, Cooling Water Centrifugal pump sets with Cast Iron casing & bronze Impeller & Shaft seals with TEFC motor suitable for 3 Phase, 415 V + 10 %, 50 c/s, AC Power supply, Necessary Cabling & Earthing Strip, mounted on common base frame etc. The pump shall be duly insulated, as per specifications.

(a) Technical Data : (1W+1S) Water Quantity - 99 GPM Static Head - 20 meters Speed - 1450 RPM Impeller - Bronze

(b) Technical Data : (1W+1S) Water Quantity - 198 GPM Static Head - 20 meters Speed - 1450 RPM Impeller - Bronze

CONDENSER WATER PIPE: Supplying, Fixing, Testing and Commissioning of condenser water pipes including flanges, gaskets and bends/tees or fittings as required of following sizes of MS 'C' class along with necessary clamps, vibration isolators and fittings such as bends,tees etc.but excluding valves, strainers, gauges etc. adequately supported on rigid supports duly painted/buried in ground excavation and refilling etc. as per specification and as required complete in all respect. 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 upto 350 mm dia. And from minimum 8mm thick MS sheet for pipes of 400 mm dia and above with GC Cloth and 2mm thick FRP Coating

(a) 100mm dia.

(b) 80mm dia.

(c) 50mm dia.

VALVES WITHOUT INSULATION

BUTTERFLY VALVE (MANUAL) - Supplying, Fixing, Testing and Commissioning of Butterfly Valve with CI body SS disc nitrile sheet & O-Ring & PN 16 pressure rating as specified.

(a) 100mm dia.

(b) 80mmm dia.

Ball valves: Supply, Installation, Testing & Commissioning of Heavy Duty Valves PN-16 rated for all valves, except for AHU valve station which shall be with PN-10 Rating valves as specified including additional supports, Nuts, bolts, gaskets etc.

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

(a) 100mm dia.

(b) 80mm dia

NON-RETURN VALVE 100 mm dia with dual plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating as specified.

POT Strainers Supply, Installation, Iesting and Commissioning of PN 16 Rating Pot Strainer MS body, bolted cover, flanged ends, basket of bronze 24 gauges having average width of aperture 1.4mm wire mesh for condenser water application complete with flanges, nuts-bolts, gaskets as specified and required.

(a) 100mm NB

(b) 80mm NB

Providing and Fixing in position the industrial type Pressure Gauges with gun metal / brass valves complete as required

Providing & fixing in position the mercury in glass industrial type Thermometers.

Miscellaneous (a) Supply, Installation, Testing and Commissioning of Automatic Automatic air vent for heating cooling and refrigeration, high discharge, capacity brass body and cover, stainless steel internal components, Maximum working pressure 16 bar Air discharge pressure: 6 bar - 15/25mm dia. Notes: All valves and fittings/ fixtures shall be suitable for PN 16 rating. All motorized valves (butterfly, three / two way and ball valves) actuators shall be "BMS" compatible

(a) 8 TR / 4200 CFM / 32 mm wg / FM AHU

(b) 45 TR / 22800 CFM / 32 mm wg / FM AHU

Humidistat & Strip Heaters: Fully automated humidity control system consisting below mentioned strip heater capacity in steps of 3 KW and control panel. The manufacturer shall furnish a control box containing contactors & relays of appropriate current capacity/size, circuit breaker and appropriate Airconditioning application Humidisat to ensure precise humidity control of 60 ± 5%. Heater control box shall be mounted on the designated hand side of the unit.)

Blank

(b) 30 KW (for 45 TR capacity AHU)

(c) 9 KW(for 8 TR capacity AHU)

Air Curtains: Supply, Installation, Testing and Commissioning of Air Curtain of size 6'0" Wide, 1025 m³/hr, 12-14 m/sec noise level < 70 DB for (Door Ht = Approx. 4 m) complete with MS hanging supports, electrical cabling length suitable as per site condition, with velocity of 12-14 m/s. Make : Russell, Jet International, Systemair Note: Loading & Unloading, & Lifting Shifting till the dedicated floor level to be done by the AC Vendor.

DUCTING, GRILLS, DIFFUSER AND INSULATION: Supply, Installation, Testing and Commissioning of FACTORY / SITE FABRICATED rectangular sheet metal ducts, as per specifications detailed in tender, made of Class VIII GP sheet as per SMACNA Standard for medium pressure air flow with MS angle / TDF flanges, supports, anchor fasteners, food grade gaskets and RTV sealant in accordance with the approved shop drawings. It is mandatory to use factory fabricated ducts/fittings for minimum 75% of the ducting system. Use of Site fabricated ducts should be restricted to only 'to suit' pieces. Cold rolled sheets continuous galvanized sheet steel with zinc coating as per class VIII confirming to IS:277-1962 (revised)(where ever specified) of LFQ (Lock Forming Quality) grade. Galvanizing shall be of 120gms/sq. m (Total coating on both sides) The fabrication of the ducting system for air-conditioning & Ventilation shall confirm to SMACNA-1995 standards ("HVAC Duct Construction Standards - Metal and Flexible - Second Edition - 1995"-SMACNA). G.I. Sheet Metal Duct (Rectangular)

(a) Ducting - 20 G

(b) Ducting - 22 G

(c) Ducting - 24 G

Note: [i] Necessary opening in the walls shall be carried out for the installation of supply and return air ducts and all the opening shall be made good and sealed with water proofing mortar compound and matched with existing colour surface. [ii] The layout of the ducting system shall be got approved from GE before installation

Supply, Installation, Testing and Commissioning of GI volume control Duct Damper complete with neoprene rubber gaskets, nuts, bolts, screws linkages, flanges etc, as per specifications.

Supplying, Fixing, 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.

(a) Fire Damper

(b) Actuator

(a) Fresh Air Damper

Supply, Installation of Al. extruded powder coated Square type (600mm x 600mm grid ceiling type) Supply/return air diffusers or grills with VCD and 32mm nitrile Insulated Plenum

Supply, Installation of Al. extruded powder coated Square type (600mm x 600mm grid ceiling type) Return air diffusers without VCD and 32mm nitrile Insulated Plenum

Supply, Installation, Testing and Commissioning Of Thermal Insulation Of Ducts with 25mm thick Nitrile Rubber all complete all as per specifications given in the P.S. forming part of this tender. Density of Material shall be between 40 to 60 Kg/m3. Material shall have flamabillity class V-0 as per UL 94 and shall be FM Approved.

Supply and Installation of Acoustic Lining within supply air ducts with 32mm thick open cell Nitrile Rubber

Data Logger: Supply, Installation, Testing and Commissioning of Temperature & Humidity Digital data logger with display & memory card for keeping 3 months database 7 capable for windows protocol on computer with Audio visual alarm system including all sensors, cabling and wiring (Indor + Outdoor)

ELECTRICAL WORK Supply, Installation, Testing and Commissioning 3 phase and neutral, 415 volts indoor type, factory made free standing, floor mounting, dust and vermin proof cubical type, CPRI approved, LT panel fabricated from 2.0 mm Indoor type thick CRCA sheet duly compartmentalized for each switch gear, front and rear open-able (front hinged opening), locking arrangement with chromium plated 19 mm dia locks (min 2 Nos in each compartment), lifting lugs of suitable size on top, louvers and air vent gasket for natural air, `U` shape rubber gasket, voltmeter, ammeter, Frequency meter. Panel should be anti corrosive coating and finally epoxy polyester powder coating of Siemens Grey shade (RAL-7032), Protection class IP 43, fully compartmentalized design with 350 A Al. Busbars. (For AWS1/2/3 Plant)

Supply, Installation, Testing and Commissioning 3 phase and neutral, 415 volts indoor type, factory made free standing, floor mounting, dust and vermin proof cubical type, CPRI approved, LT panel fabricated from 2.0 mm Indoor type thick CRCA sheet duly compartmentalized for each switch gear, front and rear open-able (front hinged opening), locking arrangement with chromium plated 19 mm dia locks (min 2 Nos in each compartment), lifting lugs of suitable size on top, louvers and air vent gasket for natural air, `U` shape rubber gasket, voltmeter, ammeter, Frequency meter. Panel should be anti corrosive coating and finally epoxy polyester powder coating of Siemens Grey shade (RAL-7032), Protection class IP 43, fully compartmentalized design with 400 A Al. Busbars. (For P-5 Bldg AC Plant)

AHU Panels (AWS-1/2/3): Supply, Installation, Testing and Commissioning 3 phase and neutral, 415 volts indoor type, factory made free standing floor mounting or Wall mounting, dust and vermin proof cubical type, LT panel fabricated from 2.0 mm Indoor type thick CRCA sheet duly compartmentalized for each switch gear, front hinged opening locking arrangement with chromium plated 19 mm dia locks, louvers and air vent gasket for natural air, `U` shape rubber gasket, voltmeter, ammeter, Frequency meter. Panel should be anti corrosive coating and finally epoxy polyester powder coating of Siemens Grey shade (RAL-7032), Protection class IP 43, fully compartmentalized design with 150 Amp Al. Busbars. and comprising following:- Incoming - 63 A MCCB FP 35 KA with MF meter and dispalys Outgoing: (i) 25 A MCCB TP 25 KA with suitable starter - for AHU fan (i) 40 Amps, TP, MCCB, 25 KA – 01 No For Humidistat/ Heater control box (iii) 10 A SP MCB - for Thermosat and 3 way diverting valve control box

Note: 1. Minor changes in control panel for any extra/additional provisions as may be essentially required for succesful commisioning and functioning of various plants and components as per the overall requirement to meet the specified air-conditioning perforamance shall be provided by the contractor without any additional cost to the department. 2. Quoted cost shall include control & starter panel, transformer for Energy valve, copper armoured cable from control panel to motor, copper earthing, copper armoured control cabling and hook up to its controller. The control & starter panel shall be complete with necessary control, including OLP, SPP, ON/OFF push buttons with ON indications, 2 nos. non polarised NO-NC contacts tripping on signal from Fire Dampers / Fire Alarm Panel. 3. Controller shall also have fire trip alarm to shut AHU incase of signal from fire panel

AHU Panels (P-5): Supply, Installation, Testing and Commissioning 3 Phase and Neutral, 415 volts indoor type, factory made free standing floor mounting or Wall mounting, dust and vermin proof cubical type, LT panel fabricated from 2.0 mm Indoor type thick CRCA sheet duly compartmentalized for each switch gear, front hinged opening locking arrangement with chromium plated 19 mm dia locks, louvers and air vent gasket for natural air, `U` shape rubber gasket, voltmeter, ammeter, Frequency meter. Panel should be anti corrosive coating and finally epoxy polyester powder coating of Siemens Grey shade (RAL-7032), Protection class IP 43, fully compartmentalized design with 150 Amp Al. Busbars. and comprising following:- Incoming - 100 A MCCB FP 35 KA with MF meter and dispalys Outgoing: (i) 32 A MCCB TP 25 KA with suitable starter - for AHU fan (i) 63 Amps, TP, MCCB, 25 KA – 01 No For Humidistat/ Heater control box (iii) 10 A SP MCB - for Thermosat and 3 way diverting valve control box

Note: 1. Minor changes in control panel for any extra/additional provisions as may be essentially required for succesful commisioning and functioning of various plants and components as per the overall requirement to meet the specified air-conditioning perforamance shall be provided by the contractor without any additional cost to the department. 2. Quoted cost shall include control & starter panel, transformer for Energy valve, copper armoured cable from control panel to motor, copper earthing, copper armoured control cabling and hook up to its controller. The control & starter panel shall be complete with necessary control, including OLP, SPP, ON/OFF push buttons with ON indications, 2 nos. non polarised NO-NC contacts tripping on signal from Fire Dampers / Fire Alarm Panel. 3. Controller shall also have fire trip alarm to shut AHU incase of signal from fire panel

APFC: Supply, Installation, Testing & Commissioning of fully automated power factor controlling APFC panel with all protection, displays and indicators and as per following capacities 40 KVAR - Contactor Based with Aluminium Reactor APFC Panel in steps of 3x10 KVAR + 2 x 5 KVAR configuration

(a) 30 KAVR in steps of 2x10 KVAR + 2x 5 KVAR

(b) 25 KAVR in steps of 1x10 KVAR + 3x5 KVAR

POWER CABLES - M & L for ISI marked 1.1 kV grade aluminium conductor, XLPE insulated armoured cables, conforming to IS: 7098 (Part 1)- 1988 having stranded aluminium compact shaped conductor laid in trenches or on cable trays as per Cl. 2, IS: 8130- 1984, PVC inner sheath, single armouring of galvanized steel strip/wire and PVC Type ST2 outer sheath conforming to IS: 5831- 1984, including termination complete as specified and directed.

(a) 3.5 Core X 95 mm² (Chillers)

(b) 3.5 core X 50 mm² (AHU panel & Heaters * APFC Panel)

(c) 4 Core X 16 mm² (Cooling Towers)

(d) 4 Core X 10 mm² ( Pumps)

(e) 3 Core X 6 mm² ( Local DB)

(f) 3 Core X 2.5 mm²

(g) 3 Core X 1.5 mm²

Cable Tray - Supply and Installation of Hot Dipped Galavanised Ladder Type Tray 2mm thick Cable trays of following sizes.

(a) 400 W x 50 H x 2mm THK cable trays

(b) 200 W x 50 H x 2 mm THK cable trays

(c) 100 W x 50 H x 2mm THK cable trays

(d) 50 W x 25 H x 2mm THK cable trays

EARTHING

M & L for Earthing complete with GI earth plate electrode of 600mm x 600mm x 6mm 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 GI strip of size 25mm x 4mm 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. complete as specified and directed by the engineer-in-charge. Notes: (i) The cost of GI earth continuity conductor with GI pipe 40mm medium grade upto 7.5m is deemed to be included in r/o above item (ii) The earth chamber to be constructed 0.5m from edge of earth pit with necessary watering arrangement. The cost for the same is deemed to be included in above item Note: Earthing shall be meshed together and will be terminated on two diffrent wall mounted common bus/test link made of 50mm x 6 mm GI strip with round holes for bolting of earthing connections.

Material and Labour for 25 x 6 mm GI Earth Strip complete all as specified and directed

Material and Labour for 50 x 6 mm GI Earth Strip complete all as specified and directed

Material and Labour for 8 Gauge GI Wire complete all as specified and directed

Note : Supply & Installation Of Structural Steel & Other Civil Wks The scope of work for air conditioning system also includes all kind of civil works and complete supply, transport, unloading, shifting & Fabrication of steel sections and erection of MS base frames, MS angle channels, flat,anchor fasteners etc. for supporting various items of equipment such as various panels/switchgear, dummy panels, adaptor boxes addition support for proper cable termination, MS Fabricated cable trays, push button stations, junction boxes, DB etc. The scope include welding, bolting, chipping, grouting etc., including applying one antirust coat of approved primer and two finished coats of approved paint with primer & paint, breaking and finishing of walls, floors etc. Contractor has to apply one coat of antirust paint (Red-oxide ) before installation. The scope is inclusive of minor civil work as required, supply of GI hardware materials, consumables, tools & tackles and necessary labour with supervision but not limited to, and complete as per approved drawings, specification and directions of Engineer-In charge. The scope also includes transportation of material from owner’s issue point to actual place of work by contractor's own lifting and transporting arrangement. The cost of all these is deemed included in the quoted price against each item and nothing extra shall be payable.

EXTERNAL WATER SUPPLY

Supply, Install, Testing and Commissioning of booster pumps for 440 V, 3 Phase , 50 Hz Confirming to IS- 12469 : 1988 With CI casing bronze impeller and stainless steel shaft mounted on heavy duty bearings suitable for 440 volts, 3 Phase, 50 Hz 36m Head , 450 LPM discharge using BEE five star rated pump discharge ,location:- Godavari Terrace Fire Pump

Supply, Installation, Testing and Commissioning of Mono Block Pumpset (Pump and Motor) Centrifugal 10 HP three phase mono block pump set RPM not less than 2500, power rating 9 KW, pump size not less than 3’’ (input) X 2.5’’ (output) head range not less than 32 meter, discharge 1140 LPM tom 720 LPM, voltage 415V three phase star delta panel starter with Appropriate relay system, suitable 415V± 10% volts, 50 cycles, 3 phase, AC supply including nylon bellow for pipe connection complete all as specified and directed with following specification :- (a) Head : 44m WC or as required using BEE five star rated pump Location : NOFRA Pump House

Supply, Installation, Testing and Commissioning of Mono Block pumpset (Pump and Motor) Centrifugal 15 HP three phase mono block pump set RPM not less than 2500, power rating 11 KW, pump size not less than 3’’ (input) X 2.5’’ (output) head range not less than 32 meter, discharge 1140 LPM to 720 LPM, voltage 415V three phase star delta panel starter with Appropriate relay system, suitable 415V± 10% volts, 50 cycles, 3 phase, AC supply including nylon bellow for pipe connection complete all as specified and directed with following specifications :- (a) Head : 45-60m WC or as required using BEE five star rated pump (b) Location: B Camp Pump House

COMPREHENSIVE MAINTENANCE OF AIR CONDITOINING

Comprehensive Maintenance Comprising of Routine, Preventive & Breakdown Maintenance of chilled water Type central air conditioning plant complete (including AHU, Pipeline, Ducting, Chiller and compressor etc.) of capacity 24 TR (1W+1S) and 45 TR (1W+1S) installed, comprising of all devices and accessories through out 12 months on all days including Sundays & holidays for a period of 03 years after expiry of Defects Liability Period (i.e. 24 months after completion of all Phase II tests) all as specified and directed and as shown below:-

1 year after expiry of Defects Liability Period

1 year after completion of BOQ item No 4.02 here-in-before

1 year after completion of BOQ item No 4.03 here-in-before

Notes: 1. The contractor shall be responsible for periodical maintenance, as per maintenance schedule attached and specified including renewal / replacement of parts, fittings / fixtures filling of refrigerant gas etc required for smooth functioning of the plant as per manufacturers instructions. The inspection and servicing of chillers & AHUs shall be carried out by OEM only, and reported monthly. Non-submission of inspection report would invite penal charges @ ₹25,000/- as may be deducted by GE.

2. All spares of minor/major nature required to keep the plant in healthy functional state are considered to be included in the above mentioned annual maintenance. All defects shall be repaired promptly. Non-operation of plant due to any defect or inability to maintain the desired temperature and humidity inside the premises shall invite penal charges. The penalty applied will be @ ₹1000 per hour in case of repairs/rectification to achieve the requisite conditions are not completed with in 6 hours of reporting by department. Not attending breakdowns which necessitates components/parts replacement shall be penelized as under :- (a) Attending breakdown within 48 hours - ₹ Nil (b) Attending breakdown within 3 to 7 days - ₹ 5000/- per breakdown per day (c) Attending breakdown after7 days - ₹ 10,000/- per breakdown per day Data loggers place at the premises will be referred in support of the functioning or non-functioning of the plant.

3. The contractor is required to enter into a MOU with the OEM of chiller plant as well as AHU for providing comprehensive AMC inclusive complete coverage of the maintenance liability of the chiller units. The MOU shall be finalized before completion of the project and it shall cover the complete period of five years (2 years DLP and 3 years as per above schedule)

4. The department reserves the right to keep an amount of amount equivalent to total 16% of the chiller cost (@ 4% per annum AMC) as warranty money in case contractor fails to enter into MOU with the Chiller's OEM. The department will be at liberty to enter into this kind of MOU directly with the OEM of chillers and the liability so arising shall be adjusted against above mentioned reserve amount/payments due to contractor.

MANNING AND OPERATION OF CENTRAL AC PLANTS

Outsourcing of services round the clock ( consisting of three shifts) including Sundays and holidays and operation of Central type air conditioning plant of capacity 24 TR (1W+1S) and 45 TR (1W+1S) including all connected electrical items such as main switch, starter, change over switch, MCCB, voltmeter, ammeter, panel board etc, cooling tower, condenser or water pump ,valve system, controlling system, condenser, refrigerant line, adjusting valve, refrigerant valve, bypass valve, daily checking, leakage, checking noise, controlling temp. of plant, cleaning of plant and it's surrounding area etc, by one Ref Mech (Skilled) per shift for 2XAC Plants at seprate locations(total 6Xref mechanic) all as per manufacturers instructions and as specified and directed by Engr-in-charge.

11 months after completion of work

11 months after completion of BOQ item No. 5.011 here-in-before

11 months after completion of BOQ item No. 5.012 here-in-before

11 months after completion of BOQ item No. 5.013 here-in-before

11 months after completion of BOQ item No. 5.014 here-in-before

05 months after completion of BOQ item No. 5.015 here-in-before

NOTE:- (a) Complete hourly log sheets and data records shall be maintained by the operating staff. The log sheets shall show a minimum of hourly details of - which Compressor/CHW pump/CDW Pump/Cooling tower is in operation, current drawn by various machines, voltage levels, condition in AHU room and in the air conditioned premises, state of DG set running/testing/oil position etc. The log sheets shall also show and record any defect in any plant/sub plant clearly in the remarks column. Log sheets of previous 30 days shall be always maintained at plant room. (b) The Contractor shall Employ Refrigeration mechanic having minimum ITI qualification from Govt Recognised institute with adequate knowledge & minimum 2 years experience in maint/operation of AC plants. The operator must competent to carry out the minor maint all as directed. (TOTAL number of operators required per day are 03 nos.) (c) Contractor shall pay the wages to the employees through e-payment i.e Adhaar linked bank accounts (credit to their bank account). Engineer-in-charge shall ensure that e-payment made to employees and their wages shall not be less than minimum wages fixed by state Govt or Central Govt whichever is more. Monthly e-banking statement shall be furnished by the contractor to the Engr-in-charge and the same shall be kept in record duly verified.

(d) It is the responsibility of contractor to deposit the employees provident fund (EPF) to the concerned authority as per the prevailing scales as laid down by Ministry of labour for all operator/helper (as applicable) and necessary proof to this regard shall be submitted to the Engineer-in-charge for verification & record. The quoted rates shall be deemed to be included of above provisions. In case contractor fails to produce the proof of EPF, the same shall be recovered from his dues as per the prevailing scale plus 15 percent. department. (e) The contractor shall maintain all the registers under various labour law rules, 2017 and shall be produced to the Engineer-in-Charge as well as officers detailed by central labour department.

(f) Each shift duration shall be 8 hours & duty timing will be decided by Engr-in-Charge. (g) The unit rate quoted shall deemed to be included for cost of labour for daily routine maintenance for trouble free functioning of installation. (h) In case of any abnormal noise/ complaint the plant should be put off and same should be brought to the notice of Engr-in-charge. (j) The operator employed by the contractor shall be capable of carrying out minor repair/ maintenance & should have well experience in AC plants as applicable.

(k) The quoted rate is deemed to be inclusive of cotton waste, cleaning material etc & Contractor will ensure general area cleanliness and upkeep of the installation on daily basis. (l) The quoted rate is deemed to be inclusive of tools & testing instruments required for operation & maintenance of AC plants. (m) The rate quoted shall deemed to be inclusive of safety gear & required tools for minor maintenance. In case of failure to provide tools kit & safety kit (spanner sets, hand gloves (n) The Contractor shall not employ same tradesman continuously for more than 11 months during the Contract period. (o) The contractor shall provide 02 uniforms to each operator and design of uniform shall be got approved. In case of failure, a penalty of ₹ 2000/- per uniform will be levied and recovered from their dues. (p) In case of failure due to absence of operative staff, the contractor shall be liable to pay compensation at twice the cost of a day’s Manning & Operation derived from pro rate of Sch ‘A’ quoted rates.

(q) The Contractor shall maintain proper records of all kinds of daily, weekly, monthly, quarterly, half yearly and yearly or whatsoever maintenance is carried out during contract period in a binded book / register and shall obtain the signature of Engineer-in-Charge every fortnightly. (r) The contractor shall provide board at proper location near each installations duly writing the name of operators and Mobile Numbers shift wise. (s) The contractor shall provide saferty gears to AC plant operator and cost shall be deemed to be included in quoted rates . (t) In case of absence of operator from place of duty, a penalty @ ₹ 3000/- per shift shall be levied. (u) In case of operator found without proper uniform, a penalty @ ₹ 2000/- per day per operator shall be levied.

Shree Ayyappa Engineering

somnath engineering corporation