AUGMENTATION /REPLACEMENT OF CENTRALISED AC PLANT AT NAD KARANJA

Amount

DISMANTLING & RELOCATION OF EXISTING EQUIPMENT Carefully dismantling all the parts and components of existing Central AC plant of running capacity not less than 37 TR and consists of following major components & Relocation within the Premises as directed by Engr-in-charge. Note: The majority of the major components shall be relocated to an existing nearby AC plant location for recommissioning and remaining items will be shifted to Engr-in-Charge store yard. 2 x 37 TR scroll chillers Chilled Water Pumps Cooling Water Pumps Pipes and valves Cooling Towers Main Chiller Panel, cabling and wiring etc AHUs & ducting Note-1) Capacity mentioned above is approximate. -2) After the dismantling process, if the plant room or any other building structure is damaged or disrupted, it shall be restored and prepared accordingly. This includes all necessary civil works required for the installation of new air conditioning plants and machinery, as per scope of work

CENTRAL AIR CONDITIONING 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 15°C ± 2°C and humidity of 60 ± 5% at the given building 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. Care has to be 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 targeted 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 building of DBM-15 in this tender.

CHILLERS (1W+1S) Water Cooled VFD type Screw Brine Chiller Package including Chiller Plant Manager

Supply, Installation, Testing & Commissioning of Screw Chiller as per the Specification & with following Tech Data -Design, SITC of Brine Chilling machine complete with Hermetic OR Semi-hermetic Compressor, R-134A 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 415V ± 10%, 50 c/s, 3 Phase, AC supply.

Ref. Capacity (Actual - at design parameters) - 70 TR Chilled Water O/I Temp - 0 / 5°C Cooling Water I/O Temp - 32.20 / 37.8°C Chiller Fouling Factor - 0.000044 m² °C/W Condenser Fouling Factor - 0.000088 m² °C/W Chilled Brine Flow - 144USGPM Condenser Water Flow- 280USGPM Brine Concentration (16-20% MEG) Part load energy efficiency at AHRI Relief - 6.5 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

CHILLER ACCESSORIES: Following chiller accessories will be provided with the chiller systems Restrained Spring Isolators Vibration Isolator Of Approved Make Required For Following Equipment & In Rating. 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 1000hr rating when tested in accordance with ASTM B-117. " - Suitable for Chiller Operating Weight - 8 nos - Suitable for Chilled Brine & Cooling Water Pumps & their Operating Weight - 16 nos" NOTES: [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. [ii] Chillers shall be integrated and connected with CPM (Chiller Plant Manager) specified elsewhere in this tender document for complete auto operation and optimization of plant. [iii] The unit shall be suitable for 3- Phase, 415 V ± 10%, 50 Hz AC electric supply, with a built-in microprocessor based control panel.

Supply, Installation, Testing & 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 100mm Dia

(b) Single Arch Rubber Bellow for Chillers and Pumps for 125mm Dia

Chiller Plant Manager Supply, Installation, Testing and Commissioning of intelligent chiller plant manager including LCD display, PLC controller with all instrument, sensors, accessories and interconnecting control and power cabling etc, supporting and controlling the water cooled chiller plant. The programmable logic controller shall be specifically designed to control 2 x water cooled screw chillers, 2 x cooling towers, 2 x condenser pumps, 2 x chiller pumps, zone demand sensor (DP or temp sensor) and Water level switches in cooling towers. The CPM controller should be capable of sequencing, staging, scheduling, load sharing between chillers and optimization. The controller shall be able to communicate to BMS with Modbus/BACnet/ lonworks protocol. The quoted rates shall include all the features mentioned above and 4 nos. water temperature sensors and 1 no. outside air temperature sensor. Note : Rate for below mentioned Field Instruments and cabling of the same deemed to be included in the quoted rate - DPT Sensors - Immersion temp sensors - T & RH Sensors - Energy meters for chillers - Plant manager cabling with Cable trays with cover as per plant room layout

PUMPS (1W+1S)

Chilled Water Pumps with the following parameters : Supply, Installation, Testing and Commissioning of Horizontal End suction back pull out type, 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 c/s, AC Power supply, Necessary Cabling & Earthing Strip, mounted on common base frame etc. The pump shall be duly insulated, as per specifications. Technical Data : Water Quantity - 187 GPM Static Head - 16 meters Speed - 1450 RPM Impeller - Bronze

Cooling Water Pumps with the following parameters (1W+1S) : Supply, Installation, Testing and Commissioning of Horizontal End suction back pull out type, 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.

Technical Data : Water Quantity - 292 GPM Static Head - 20 meters Speed - 1450 RPM Impeller - Bronze

COOLING TOWER (1W+1S)

Supply, Installation, Testing and Commissioning of Cooling Tower Induced Draught Counter flow (CTI Certified) with fan, VFD on fan motor as Per Specification with following operating parameters :

Cooling Capacity - 84TR Wet Bulb Temp. - 28.3° C Entering Water Temp. - 37.8° C Leaving Water Temp. - 32.2° C Flow Rate capacity per cooling tower - 350 GPM Notes:- Necessary foundation, fabrication & installation of MS structure for cooling towers as per OEM recommendation is deemed included in the quoted rates.

Automatic Condenser Cleaning System

Supply, Installation, Testing & Commissioning of Automatic Brush Ball Online tube cleaning system equipped with computer control panel, ball re-circulation device, ball entrapment module, ball diverter module, ball injection module requiring cleaning balls for cleaning condenser tube system for each chiller. The cleaning devices shall comprise different types of elastomeric balls of various sizes and different specific gravities to effect the tube cleaning process at predetermined time while the condenser is online. The automatic tube cleaning system shall be equipped with a master programmable logic controller with user definable features to adjust cleaning cycle frequency, injection timing, retrieval timing and rest cycle timing to suit operational parameters of condenser, ball injection module, ball retrieval module and related piping configuration comprising the master mechanical components control system to be installed for each chiller condenser. The automatic tube cleaning system shall utilize cleaning balls with spikes configured to reach and clean grooves of enhanced tubes. The automatic ball tube cleaning system shall utilise cleaning balls with diameter smaller than the diameter of the tubes. The automatic tube cleaning system shall utilize eccentrically weighted cleaning balls to enhance dynamic zig-zag impact cleaning mechanism capable of cleaning grooves of enhanced tubes. An Independent System to be provided for each Chiller. Brush Ball ATCS for 70 TR chiller condenser with suitable size Inlet/Outlet connection.

CHILLED BRINE DISTRIBUTION SYSTEM

INSULATED CHILLED BRINE PIPING (With Nitrile rubber insulation) Supplying, laying/ fixing, testing and commissioning of following nominal sizes of chilled brine 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 elastomeric nitrile rubber of minimum 45 Kg / cu m density, Material shall have flammability 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) 100mm dia.(44 mm thick insulation)(Layer-1:19+Layer2:25 With GC)

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

DRAIN PIPING : Supply / Installation / Testing / commissioning for Drain of 32mm Mild steel '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.

INSULATED VALVES BUTTERFLY VALVE (MANUAL) - Supplying, fixing, testing and commissioning Butterfly valves for 100mm dia pipes with CI body SS Disc, Nitrile Rubber Seal & O- Ring PN 16 pressure rating for chilled brine water circulation as specified and with Insulation as per Specification

Ball valves for Drain: Supply, installation, testing & commissioning of heavy duty valves for 25mm dia pipes, 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 required supports, nuts bolts gasket etc and shown on the drawing complete with Insulation As per Specification.

Motorized ON/OFF Butterfly Valves : Supply, installation, testing & commissioning of heavy duty valves for 100mm dia pipes, 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 bolts gasket etc 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 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 for 100mm dia pipes. The actuator shall be for ON/OFF operation of valve & shall be suitable for 230 ± 10% V & 50 ± 3% Hz. The valves shall be complete with thermostat control box for precise control of the supply air to achieve 150°C temperature inside the given space fitted with sensors in return air and contactors/breakers as required & control wiring.

BALANCING VALVE WITH BUILT IN MEASURING FACILITY for 100mm dia pipes 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.

NON-RETURN VALVE for 100mm dia pipe with dual plate of CI body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating for chilled/ hot water circulation.

Y-STRAINER for 100mm dia pipes of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation as specified.

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.

M&L for MEG Charging: Initial charging of the complete AC system with MEG solution (Brine Concentration 16-20%, as per requirement) complete as required and as specified by the OEM of chillers.

Miscellaneous

(a) Supply, installation, testing and commissioning of Automatic Air vents - 15/25mm dia.

OPEN EXPANSION TANK : Supply, installation, testing & commissioning of Open expansion tank as per the specification complete with Heavy duty float valves, accessories & insulation with nitrile rubber as per specs. Capacity - 250 Ltrs. 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 to be included in the above quoted rates.

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

CONDENSOR WATER DISTRIBUTION SYSTEM 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) 125mm dia.

(b) 100mm 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) 125mm dia.

(b) 50mm dia.

Ball valves for Drain: Supply, installation, testing & commissioning of heavy duty valves for 25mm dia pipes, PN-16 rated for all valves, except for AHU valve station which shall be with PN-10 Rating valves as specified : a) Additional supports b) Nuts, bolts, gaskets etc.

Supplying, fixing, testing and commissioning of Motorized Butterfly Valve for 125mm dia pipes with CI Body, SS Disc, O - ring and minimum PN-16 pressure rating, conforming to BS 5155, IS 13095, with IP-55 actuator, capable of accepting upto 10V DC, and upto 20mA electric signal and providing similar transduced feedback output to control system as required.

BALANCING VALVE WITH BUILT IN MEASURING FACILITY for 125mm dia pipes 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.

NON-RETURN VALVE for 125mm dia pipes with dual plate of C I body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating as specified.

POT Strainers Supply, installation, testing and commissioning of PN 16 Rating Pot Strainer for 100mm dia pipess, MS body, bolted cover, flanged ends, basket of bronze wire mesh 24G X 14 mesh for condenser water application complete with flanges, nuts-bolts, gaskets as specified and required.

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 Air vents - 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.

AIR HANDLING UNITS Supply / Installation / Testing / commissioning Of Floor Mounted Horizontal Air handling units of following specifications: - CHILLED BRINE TYPE AHU

Frame Structure: It shall consist of 48mm Extruded Aluminium with thermal break profile Panel: 48mm ±2mm thick double skin sandwich panels with rockwool insulation of density 40 kg/cum, The sheet thickness shall be minimum 0.6 mm for the outer skin and 0.6 mm thickness for the inner skin of GI. Mixing Box: shall be provided to enter return air in a closed loop with fresh air intake duct and damper Filtration Section: It shall be provided with 2 stage washable type of 'G4' first stage and 'F9' final stage (Combination Filters) Coil Section: Chilled Water Coil Multi row deep constructed with Aluminium fins of minimum 0.11mm thickness and copper tubes of minimum 29 Gauge thickness. The coil section shall be equipped with factory fitted pressure independent control valves. The coil face area shall not exceed 2.5m/sec. Drain Pan: Condensate drain pan shall be fabricated from 18G SS 304 powder coated, insulated with 19 mm thick closed cell elastomeric insulation. Fan Section: Direct drive/Belt driven backward curved EC fan (Electronically commutated) with permanent magnet brushless DC motor for stepless variation of speed of fan based on temperature sensor inputs. The fan section shall be provided with limit switch for safety to shut off fan during Opening of access door.

Heater box : For fixing strip heaters Instrumentation Kit to be provided in starter control panel to give out the following option: 1. Supply air temperature 2. Return air temperature 3. Chilled water in temperature 4. Chilled water out temperature 5. DP switch across filter for filter clog " Controller module with RS 485 port compatible with BMS, on board MODBUS protocol with touch screen to display following: 1. EC fan operation status 2. Chilled water valve operation status 3. AHU power consumption 4. Chilled water in/out Temp 5. Common Alarm

Humidistat & Strip Heaters: Fully automated humidity control system consisting of 36 KW 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 Humidistat to ensure precise humidity control of 60 ± 5%. Heater control box shall be mounted on the designated hand side of the unit.

Air Curtains: Supply, installation, testing and commissioning of air curtain complete with MS hanging supports, electrical cabling length suitable as per site condition, with velocity of 12-14 m/s. (Russell, Jet International or System air make) Loading & Unloading, & Lifting Shifting till the dedicated floor level to be done by the AC Vendor. of following sizes (a) 6'0" Wide, 1025 m³/hr, 12-14 m/sec noise level < 70 DB for (Door Ht = Approx. 9m)

DUCTING, GRILLS, DIFFUSER AND INSULATION Supply / Installation / Testing / 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 for minimum 85% 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) 1.0mm Ducting - 20 G

(b) 0.8mm Ducting - 22 G

(c) 0.63mm Ducting - 24 G

Flexible Duct Supply, installation, testing and commissioning of 350mm dia of insulated flexible ducting with its matching supports and other accessories. Flexible Duct are made of flexible plastic over a metal wire coil to make round, with layer of fiberglass insulation. Supply, Installation, Testing and Commissioning of insulated flexible ducts. The insulated flexible duct shall have inner core made of double lamination of metalized polyester film permanently bonded to a coated spring steel wire helix. Fibreglass insulation of minimum 14 kg.cu.m. density having a R-value 4.2oF-Ft2-hr/ btu and 25 mm thick shall be wrapped over the inner core and covered with stronger outer jacket cum vapor barrier made of fibreglass reinforced metalized polyester film laminate. The insulated flexible duct should be fire retardant type. Limit Flexible Duct to not more than 3 Ft Length for Diffuser Connection

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

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

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

Supply / Installation / Testing / commissioning Of Thermal Insulation Of Ducts with Nitrile Rubber. Density of Material shall be between 40 to 60 Kg/m3. Material shall have flammability class V-0 as per UL 94 and shall be FM Approved. (a) 44 mm thick (Layer-1:19+Layer2:25)

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 Data Logger with Audio visual alarm system including all sensors, cabling and wiring (Indoor + Outdoor)

Under deck Insulation material shall be Closed Cell 25MM Elastomeric Nitrile Rubber Class O of Armaflex make Density of Material shall be between 40 to 60 Kg/m³ duly fixed to ceiling with suitable framework and fixing arrangements

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 Al. Busbars.

(B) Outgoing - (i) 160 amps, 3 pole, 415 V AC, 50 Hz, ultimate breaking capacity 25 KA, TM Based MCCB With On/Off/Trip Indication and MFM Meter with CT - 02 Nos (Chiller No.1 & 2) - 1 Working + 1 Standby (ii) 32Amps, TP, MCCB & DOL Starter 25 KA – 02 Nos, (02 Nos CHILLED BRINE PUMPS - 1 Working + 1 Standby). (iii) 40 Amps, TP, MCCB & DOL Starter 25 KA – 02 Nos, (02 Nos CONDENSER WATER PUMPS - 1 Working + 1 Standby). (iv) 20 Amps, TP, MCCB & DOL Starter 25 KA – 02 Nos, (02 Nos COOLING Tower - 1 Working +1 S/by (v) 100 Amps, TP, MCCB, 25 KA – 01 Nos, (01 Nos For AHU (Only Power Provision) - 1 Working). (vii) 100 Amps, TP, MCCB, 25 KA – 01 Nos, (01 Nos For APFCR - 30KVAR (Only Power Provision) - 1 Working). (viii) 32 A FP MCB - for local wiring

Note: Minor changes in control panel for any extra/additional provisions as may be essentially required for successful commissioning and functioning of various plants and components as per the overall requirement to meet the specified air-conditioning performance shall be provided by the contractor without any additional cost to the department.

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 displays Outgoing: (i) 40 A MCCB TP 25 KA - for AHU fan (i) 63 Amps, TP, MCCB, 25 KA – 01 No For Humidistat/ Heater control box (iii) 10 A SP MCB - for Thermostat and 3 way diverting valve Note: Minor changes in control panel for any extra/additional provisions as may be essentially required for successful commissioning and functioning of various plants and components as per the overall requirement to meet the specified air-conditioning performance shall be provided by the contractor without any additional cost to the department.

Note: Minor changes in control panel for any extra/additional provisions as may be essentially required for successful commissioning and functioning of various plants and components as per the overall requirement to meet the specified air-conditioning performance shall be provided by the contractor without any additional cost to the department.

APFC: Supply, installation, Testing & Commissioning of 40 KVAR - Contactor Based with Al. Reactor APFC Panel in steps 0f 3 x 10kvar + 2 x5 kvar configuration

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 120 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 1.5 mm²

Cable Tray - Supply and Installation of Hot Dipped Galvanised 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 60 cm x 60 cm x 6 mm size, buried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below normal ground level, connected to GI strip of size 25 mm x 4 mm as earth lead, by means of bolts, buts, check nuts and washers of galvanised iron or steel, galvanized iron pipe of 40 mm diameter, connected to earthing test point, all as shown in electrical plate No. 5 connected to earthing test point all as specified or indicated including testing on completion and including excavation, earthwork, PCC earth pit of dimensions 550 mm X 550 mm (outer) and 300 mm X 300 mm (inner) and 250 mm deep, with a 10 mm thick CI cover, hinged to CI frame on ground level, GI watering pipe, funnel, etc. 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 different 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 50 x 6 mm (GI Earth Strip) with suitable fixing arrangements

Material and labour for 25 x 6 mm (GI Earth Strip) with suitable fixing arrangements

Material and labour for GI earth wire 4mm dia with suitable fixing arrangements

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 to contractor.

Supply and fix in replacement HDPE makeup water tank multi layered of 2 x 7500 litres capacity made up of 100% virgin material, having 100% UV stabilized white outer layer, threaded lid, extra insert lid for protection against algae formation complete with inter-connection piping and non-return valve etc. complete all as specified and as directed by Engr-in-charge. (i) The HDPE tank shall be placed on sturdy PCC platform at appropriate height. (ii) The HDPE tanks shall be secuured on all four sides with suitable MS frame work up to a height of 4 feet to withstand a storm wind pressure. (iii) Old U/S tank with interconnecting pipelines shall be issued to contractor under sch of credit

DISMANTLING, SHIFTING & REINSTALLING (2W+1S)

Dismantling and removing old U/S compressor sealed unit of Scroll Type compressor carefully and Supply, installation and testing in replacement new sealed compressor unit of capacity 12.5 TR Model No SZ185S4RC of Make Blue star/Danfoss or equivalent complete with all standard accessories as per existing model installed at AC plant. Note: (i) Sealed unit shall be purchased from authorised dealers/agents (ii) Cost of labour for fixing, T&P shall be deemed to included in the quoted rate (iii) Unit rate quoted shall include for the necessary electrical check i.e. checking of panel wiring to run the compressor smoothly. (iv) Before opening/dismantling the compressor the Freon gas to be taken in empty cylinder by the help ice or as directed by Engineer-in-Charge.

Re-assembling and Re-installation of Dismantled central air conditioning plant components removed from DBM-15 Central AC Plant site and testing commissioning at new location as per the following details (1W+1S):-

(a) Water cooled Scroll chillers of capacity 37 TR (2 x 37 TR) capacity (01 working + 01 standby) with all equipments, piping, accessories and comprising Two Nos scroll compressor hermatically sealed Chiller units using R-407C refrigerant gas with suction discharge shut off valves, automatic capacity control with thermostat and solenoid valves built in suction strainer, oil pump, hot gas muffler, heat wheel, oil pressure, safety switch etc, Microprocessor based soft start panel with safety and operating controls, indicating lamps along with automatic operation and system protection. The safety devices consisting of condenser high pressure outlet switch, evaporator low pressure cut out switch lube oil low pressure cut out switch, digital display consisting of oil pressure condensing pressure evaporating pressure and lube oil thermo meter, indicating lights and lamps two include lubricating oil heater lamp, the system run condenser high pressure, motor overload, heater lamp and operating hours meter etc., to maintain the inside temperature 23°C ± 2°C and relative humidity 60% ± 5%

(b) Two Nos stands fabricated out of MS channel/ angle of suitable size for mounting compressor, motor, condenser and chiller. Any rusted part of mounting shall be replaced with new. (c) Two set of nitro neoprene rubber antivibration ribbed pad with MS channel in foundation etc., (d) Necessary MS heavy duty refrigerant pipe for suction and discharge lines and copper pipe for liquid line complete with fitting valves etc., Note:- 1. Minor spare part required for any extra/additional provision as per site requirement for smooth functioning of shifted AC plant as per the overall requirement to meet the specified air conditioning performance shall be provided by the contractor without any additional cost to the department. 2. Any item found defective will be repair/replace and cost shall be deemed to be included.

Re-installation and commissioning of FRP induced draft rectangular type counter flow cooling tower of capacity 50TR supported over hot dip galvanised steel structure, fitted with axial flow fan direct driven, PVC /polypropylene fills/ nozzels with maximum allowable temperature 50 degree centigrade, drift losses 0.005% of water circulation with suitable foundation and float valve suitable size, mounted on suitable size PCC 1:2:4 complete all as specified and as directed by Engr-in-charge. (a) In case some parts required extensive repair and replacement, the same shall be done by contractor and the rates deemed to be included in quoted rates. (b) Complete servicing and replacement of damaged parts of the cooling tower to be done (c) Necessary civil work viz. foundation, supporting structure etc, for placement of cooling tower shall be deemed included in the scopr of work. Note:- Minor spare part required for any extra/additional provision as may be essentially required for smooth functioning of shifted AC plant as per the overall requirement to meet the specified air conditioning performance shall be provided by the contractor without any additional cost to the department.

Re-installation and commissioning of monoblock centrifugal pump set of capacity 05 HP, 8.7 to 4.3 LPS, 12m to 16m head for condenser cooling water circulation and suitable for three phase 50 cycle 450V AC supply and including suitable foundation of MS structure with antivibration rubber pads complete all as specified and as directed by Engr-in-charge. (a) In case some parts required extensive repair and replacement, the same shall be done by contractor and the rates deemed to be included in quoted rates. Note:- Minor spare part required for any extra/additional provision as may be essentially required for smooth functioning of shifted AC plant as per the overall requirement to meet the specified air conditioning performance shall be provided by the contractor without any additional cost to the department.

Re-installation and Commissioning Monoblock centrifugal pump set of capacity 03 HP, 8.7 to 4.3 LPS, 22 to 26 Mtr head for Chilled water circulation & suitable for three phase, 50 cycle, 440V AC, supply and including suitable foundation of MS Structure with antivibration rubber pads all as specified. Note:- Minor spare part required for any extra/additional provision as may be essentially required for smooth functioning of shifted AC plant as per the overall requirement to meet the specified air conditioning performance shall be provided by the contractor without any additional cost to the department.

Supply and fix in replacement of HDPE make up water tank multi layered of 5000 ltrs capacity made up of 100% virgin material, having 100% UV stabilized white outer layer, threaded lid, extra insert lid for protection against algae formation complete with GI medium grade 25mm dia inter-connection piping with fittings and non-return valve etc., complete all as specified and directed.

(i) The HDPE tank shall be placed on a sturdy PCC platform at appropriate height

(ii) The HDPE tanks shall be secured on all four sides with suitable MS frame work up to a height of 4 feet to withstand a storm wind pressure

(iii) Old U/S tank with interconnecting pipelines shall be issued to contractor under schedule of credit.

Material and labour for leak test of machines and filling up R407C gas complete all as specified and as directed by Engr-in-charge.

Supply and filling of compressor oil as recommended by OEM complete all as specified and as directed by Engr-in-charge.

Material and labour for descaling of condenser complete all as specified and as directed by Engr-in-charge.

Material and labour for PCC foundation of suitable size for chiller machine complete all as specified and as directed by Engr-in-charge.

CHILLED WATER DISTRIBUTION SYSTEM (WITH INSULATION) 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 45Kg/cum 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) 80 mm dia.(44 mm thick insulation)(Layer-1:19+Layer2:25 With GC)

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

(c) 50 mm dia.(44 mm thick insulation)(Layer-1:19+Layer2:25 With GC)

Note: 1. In case the chilled water pipe is run over ground on concrete pedastals, the insulation will be nitrile rubber as per above however the final covering shall be of either 26 swg aluminium 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 / commissioning for Drain of 25mm dia Mild Steel 'B' class piping confirming to IS: 1239 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.

Drain Piping : Supply / Installation / Testing / commissioning For Drain of 25mm dia Mild Steel 'B' class piping confirming to IS: 1239 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 required supports, nuts, bolts, gasket 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 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/diverting 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. "

(a) 65 mm dia

(a) 50 mm dia

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) 80 mm dia

(b) 65 mm dia

(c) 50 mm dia

NON-RETURN VALVE for 80mm dia pipes with dual plate of CI body SS plates vulcanized NBR seal flanged end & PN 16 pressure rating for chilled / hot water circulation.

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

(a) 80 mm dia

(b) 65 mm dia

(c) 50 mm 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.

Supply, installation, testing and commissioning of Automatic Air vents - 15/25mm dia.

OPEN EXPANSION TANK : Supply, install, test Chilled water Expansion tank 250 ltrs and thermally insulated with 50mm thick EPS quality sheet of suitable size having density not less than 65 Kg/Cum with protecting cover of 25 gauge aluminum sheet cladding and supporting pipe connections complete all as specified and as directed by Engr-in-charge. 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: (I) All valves and fittings/ fixtures shall be suitable for PN 16 rating except for AHU which could be PN 10 rating (ii) All motorized valves (butterfly, three / two way and ball valves) actuators shall be "BMS" compatible (iii) All chilled water system & components shall be duly insulated

CONDENSER WATER DISTRIBUTION SYSTEM : 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.

(a) 100mm dia.

(b) 50mm dia.

(c) 25mm 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) 100 mm dia.

(b) 50 mm dia.

Ball valves: Supply, installation, testing & commissioning of heavy duty valves for 25mm dia pipes, 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 for 100mm dia pipes 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.

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

POT Strainers Supply, installation, testing and commissioning of PN 16 Rating Pot Strainer for 100mm dia pipes MS body, bolted cover, flanged ends, basket of bronze wire mesh 24G X 14 mesh for condenser water application complete with flanges, nuts-bolts, gaskets as specified and required.

Y-STRAINER for 100mm dia pipes of Ductile CI Body flanged ends with stainless steel strainer for chilled / hot water circulation including insulation as specified.

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.

Supply, installation, testing and commissioning of Automatic Air vents - 15/25mm dia. Notes: (I) All valves and fittings/ fixtures shall be suitable for PN 16 rating. (ii) All motorized valves (butterfly, three / two way and ball valves) actuators shall be "BMS" compatible

AIR HNADLING UNITS ( For Section 4K Workshop) Supply/Installtion/Testing/Commissioning of Floor Mounted Horizonatal Air Handling units of capacity 12000 CFM with following specifications:

Frame Structure: It shall consist of 48mm Extruded Aluminium with thermal break profile Panel: 48mm ± 2mm thick double skin sandwich panels with rockwool insulation of density 40 Kg/cum, The sheet thickness shall be minimum 0.6mm for the outer skin and 0.6mm thickness for the inner skin of GI. Mixing Box: Shall be provided to enter return air in a closed loop with fresh air intake duct and damper

Filtration Section: It shall be provided with 2 stage washable type of 'G4' first stage and 'F9' final stage (Combination Filters) Coil Seciton: Chilled water coil multi row deep constructed with Aluminium fins of minimum 0.11 mm thickness and copper tubes of minimum 29 gauge thickness. The coil section shall be equipped with factory fitted pressure independent control valves. The coil face area shall not exceed 2.5m/sec. Drain Pan: Condesate drain pan shall be fabricate from 18G SS 304 powder coated, insulated with 19mm thick closed cell elastomeric insulation. Fan Section: Direct drive/Belt driven DIDW centrifugal fan, high efficiency backward cuve with fire retardant flexible connection at fan outlet. The fan section shall be provided with limit switch for safety to shut off fan during opening of access door. Heater Box: for fixing heater for humidity control

Instrumentation Kit to be provided in the starter control panel to give out the following option:- 1) Supply air temperature 2) Return air temperature 3) Chilled water in temperature 4) Chilled water out temperature 5) DP switch across filter for filter clog

Controller shall also have fire trip alarm to shut AHU incase of singal from fire panel. 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 upto to its controller. The control & starter panel shall be complete with necessary control, including OLC, SPP, ON/OFF push buttons with ON indications, 2 Nos, non polarised NO-NC contacts tripping on singal from Fire Dampers/Fire Alarm Panel ISP ≤ 40mm Note:- Necessary Foundation, fabrication for installation of AHU will be done by the contractor as per site requirement and rate shall be deemed to be included in the quoted rate. "

Air Handling unit All as per item No 3.34 here-in-before but of capacity 5500 CFM

Electrical Panel for AHU : Supply, installation, testing and commissioning 3 phase and neutral, 415 volts indoor type, factory made free standing floor mounting or wall mounting, dust and verminproof 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 Aluminium Busbar and comprising following:-

Incoming: 100A MCCB FP 35 KA – 01 No with MF meter and displays. Outgoing:- (i) 40 A MCCB TP 25 KA - 01 Nos for AHU Fan (ii) 63 Amp, TP, MCCB,25 KA-01 Nos for Humidistat/Heater control box (iii) 10 Amp SP MCB- 01 Nos for Thermostat and 3 way diverting valve. Note Minor changes in control panel for any extra/additional provisions as may be essentially required for successful commissioning and functioning of various plants and components as per overall requirement to meet the specified air-conditioning performance shall be provided by the contractor without any additional cost to the department.

Main HVAC Panel : Material and labour and testing and commisioning of floor mounted indoor LT Panel dust and vermin proof factory fabricated made out of not less than 2mm thick CRCA sheet with seven tank process powder coated and 50x50x6mm angle iron frame on PCC foundation 1:3:6 type C1 platform with all accesorries and control gears for running the central AC Plant suitable for operation on 3 Phase 50 cycle 415 volts including necessary electric copper wiring with 1100 volts grade single core PVC insulators FRLS multistandard copper conductor cables of suitable current carrying capacity complete comprising of the following accessories complete all as specified and as directed by Engr-in-charge.

Humidistat & Strip Heaters: Fully automated humidity control system consisting of 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.

18KW Strip heater

12KW Strip heater

DUCTING, GRILLS, DIFFUSER AND INSULATION Supply / Installation / Testing / 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.

Cold rolled sheets continuous galvanized sheet steel with zinc coating as per class VIII confirming to IS:277-1962 (revised)(whereever 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

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

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

Supply / Installation / Testing / commissioning Of Thermal Insulation Of Ducts with 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.

(a) 25 mm thick

Supply and installation of acoustic lining within supply air ducts with 32mm thick open cell Nitrile Rubber

Supply and lay 4 core 50 sqmm PVC insulated armoured and PVC sheathed with aluminium conductor heavy duty LT 1100 volts grade conforming to IS-1554 part-1 including and testing for chiller unit complete all as specified and as directed by Engr-in-charge.

All as per item No. 3.460 here-in-before but 4 core 10 sqmm for AHU blower motor.

All as per item No.3.460 here-in-before but 3 core 6 sqmm for CT fan, condenser motor, chiller motor.

Supply and lay 2 core 1.5 sqmm PVC insulated armoured and PVC sheathed with copper conductor heavy duty LT 1100 volts grade conforming to IS-1554 part-1 including and testing for control wiring complete all as specified and as directed by Engr-in-charge.

Material and labour for painting of complete AC plant equipments complete all as specified and as directed by Engr-in-charge.

Note:- Minor spare part required for any extra/additional provision as may be essentially required for smooth functioning of shifted AC plant after shifting as per the overall requirement to meet the specified air conditioning performance shall be provided by the contractor without any additional cost to the department.

EXTERNAL ELECTRIC SUPPLY

Supply & fixing, jointing, connecting & testing in trenches XLPE insulated PVC sheathed cable heavy duty 1100 volts grade, aluminium conductor in trenches / ducts of following sizes including taking out cable cover & cable all as specified and directed :

3.5 core 300 Sqmm

3.5 core 400 Sqmm

Excavation in trenches for not exc 1.5 mtr wide and not exc 1.5 mtr depth and getting out in soft/loose soil including taking out faulty cable/cable, cable covers and GI pipe complete all as specified and directed.

Removing excavated materials n.exc 50m and depositing where directed at a level n.exc 1.5m above the Starting point.

Returning filling in including spreading levelling watering and well ramming in layers n.exc 25cm complete all as specified & directed.

Supply and lay sand cushioning to under ground HT/LT cable complete all as specified in SSR Part-I and as directed by Engineer-in-charge.

M&L GI pipe light grade with all fittings complete laid in trenches all as specified for 100 mm bore of pipe

M & L for PCC type C2, 1:3:6 using (40 mm graded stone aggregate) in foundations ,filling and mass concrete including necessary form work complete all as specified & directed by Engr-in-charge.

Supplying, installing, testing and commissioning of factory assembled Diesel Engine driven generating set coupled with alternator AC to give Prime Rating of 200kVA at a power factor of 0.8 lagging, 415volts, AC, 3 phase, 4 wire, 50HZ, 1500RPM, directly coupled with diesel engine water cooled, mounted on common base frame complete with in built fuel tank with fuel line & accessories, PCC foundation work as per manufacturer's instructions, vibration damper pads, micro processed based relay panel for automatic starting on mains failure, control panel showing all parameters of engine & alternator, sound proof canopy & other accessories etc., and conforming to the technical specifications laid in particular specification Clause No 14 to 14.12 of PS complete in all respect and all as specified and as directed Make: M/s Cummins Model No: C200D5P or techno-commecial equivalent model in particular specifications.

Notes: (a) Any civil work reqd for installation of DG set & AMF panel at site shall be deemed to be including in to quoted rates (b) Contractor shall submit the detailed specification, particular model, make and literature alongwith drawing for approval of Accepting officer before placing of order the GE and Engineer-in-charge shall ensure that the detailed drawing & specifications shall be submitted to accepting officer with in one month of issue of Work order (c) The width (Internal depth) of LT/ AMF Panel should not be less than 450mm. (d) The capacity and the make of DG Set, switch gear, accessories and other items to be incorporated into Panel board shall be as mentioned in BOQ / in the list of makes attached and be got approved on the drawing before placing the order

(e) The Contractor shall inform to the CWE/GE for pre-dispatch inspection at factory premises. The factory inspection and testing shall be carried out by the nominated rep. of accepting officer. The inspection & testing at work site after installation arrangement shall be made by contractor and the cost of the same shall be deemed to be included in unit rate quoted by contractor (f) The Contractor has to arrange T&P and Fuel for testing 12hours as per CA provisions and cost for the same is deemed to be included in unit rate of above items

Earthing complete with GI earth plate electrode 60cm x 60 cm x 6 mm buried directly in ground vertically to a depth not less than 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 connected to and including GI strip 32 x 6 mm by means of bolts, nuts and check nuts and washers etc made of GI & connected to Earthing test point and earth dolly all as shown in elect plate No 3 of SSR Pt-I incl all necessary earth work, excavation, PCC chamber, chamber cover with handle (PCC 1:2:4) including 40 mm dia protection pipe & 20 mm dia watering pipe and wire mesh funnel etc all as specified and as directed by Engr-in-charge.

Supply & laying un-reinforced precast concrete cable cover class LV type 1, flat size 250mm x 150mm x 40 mm all as specified & directed.

M&L GI pipe light grade with all fittings complete laid in trenches all as specified for 80 mm bore of pipe

M&L for dismantling of existing panel including disconnecting connected cables, etc. and supplying, installing, testing and commissioning of factory made LT cubical double door panel with roof canopy, Outdoor type, of Suitable to accommodate the following accessories made out of CRCA sheet 3 MM thick duly powder coated with Siemens Grey Shade RAL 7032, totally enclosed, dust and vermin proof outer cubicle. Inner cubicle should be made out of 2 MM thick CRCA sheet with working voltage of 415V, 50 Hz, 3 phase 4 wire fully compartmentalised with single door system for each compartment. Outer cubicle having both sides door openable. Bus bars provided shall be adequately supported on insulators to withstand dynamic stresses due to short circuit current and shall be suitably colour coded with heat shrinkable sleeve for phase indication. The standard phase arrangement when facing the switchgear shall be R-Y-B from left to right.

The bus bar connections and their insulated supports shall be mechanically strong, and shall withstand all the stresses which shall be imposed upon them in ordinary working due to fixing, vibration, fluctuation in temp., shot-circuit or other causes. The bus bar should be supported on DMC. Provision shall be made for expansion and contraction of the bus bars and connections with variation of temp. Internal wiring should be done with 2.5 sqmm multi-stranded copper conductors and shall be properly bunched, tied, ferruled for proper identification, crimped and shall be connected with suitable lugs and PVC sleeves, etc. The bottom of the panel should contain detachable plate having provision for entry of armoured cable of adequate size with glands. Threaded earthing studs - 02 Nos shall be provided at the bottom and lifting lugs of suitable size at top to lift the panel safely shall be made. The cubicle incomer MCCB as well as outgoings shall have copper TPN/TP extension links of current rating not less than 1.5 times the rated capacity of individual feeders with Ics = 100% Icu in all MCCBs with extended Rotary Handle. The cubicle should be inclusive of following : The cubicle should be inclusive of following :

M&L for dismantling of existing panel including disconnecting connected cables, etc. and supplying, installing, testing and commissioning of factory made LT cubical double door panel with roof canopy, Outdoor or type, of Suitable to accommodate the following accessories made out of CRCA sheet 3 MM thick duly powder coated with Siemens Grey Shade RAL 7032, totally enclosed, dust and vermin proof outer cubicle. Inner cubicle should be made out of 2 MM thick CRCA sheet with working voltage of 415V, 50 Hz, 3 phase 4 wire fully compartmentalised with single door system for each compartment. Outer cubicle having both sides door openable. Bus bars provided shall be adequately supported on insulators to withstand dynamic stresses due to short circuit current and shall be suitably colour coded with heat shrinkable sleeve for phase indication. The standard phase arrangement when facing the switchgear shall be R-Y-B from left to right.

The bus bar connections and their insulated supports shall be mechanically strong, and shall withstand all the stresses which shall be imposed upon them in ordinary working due to fixing, vibration, fluctuation in temp., shot-circuit or other causes. The bus bar should be supported on DMC. Provision shall be made for expansion and contraction of the bus bars and connections with variation of temp. Internal wiring should be done with 2.5 sqmm multi-stranded copper conductors and shall be properly bunched, tied, ferruled for proper identification, crimped and shall be connected with suitable lugs and PVC sleeves, etc. The bottom of the panel should contain detachable plate having provision for entry of armoured cable of adequate size with glands. Threaded earthing studs - 02 Nos shall be provided at the bottom and lifting lugs of suitable size at top to lift the panel safely shall be made. The cubicle incomer MCCB as well as outgoings shall have copper TPN/TP extension links of current rating not less than 1.5 times the rated capacity of individual feeders with Ics = 100% Icu in all MCCBs with extended Rotary Handle. The cubicle should be inclusive of following : The cubicle should be inclusive of following :

INTERNAL ELECTRIFICATION SERVICES

Taking down carefully existing copper point wiring i.e.. light, socket or power/points complete, including flame proof fixture and fittings such as rotary switches, sockets, light fittings etc. and making good disturbed surfaces of ceiling, walls, floors complete all as specified and directed by Engineer-in-charge. (Flame proof switches, sockets etc shall be kept in safe custody for-refixing) [DBM Building - 46, AC Plant Room - 18)

M&L for Sub-main wiring with 2 x 1.5 sqmm size 1100 volts grade PVC FRLSH insulated unsheathed stranded copper conductor cable using colour code drawn through & including ERW steel conduit fixed to walls, floors & ceiling of suitable diameter with all accessories including all flame proof accessories like bends, clamps, junction boxes, flexible metallic hoses etc complete all as specified in and including 1.5Sq mm PVC FRLSH insulated unsheathed copper conductor cable for continuous earth conductor. (To control light fittings).

Re-Fixing only flame proof switch rotary type single phase 16 Amps, 240V complete all as specified and directed. (Rotary switch taken down vide item No 1 shall be reused.)

Supply and fixing flame proof switch rotary type with termination box in LM6 single phase one way 16 Amps 240V.

S & F in replacement MCCB distribution board VTPN, 4 ways, 415 Volts. 50 Hz, AC, double door made out of sheet metal phosphatize and painted with epoxy polyester based powder paints with 200·Amps rated bus bar and earth bar, lSI marked complete all as specified.

S & F in replacement MCCB 3 POLE 100 AMPS, 16KA, 415 V, 50 Hz, AC adjustable thermal & fixed Magnetic setting lcs=100% of lcu conforming to IS /IEC · 60947-2 complete all as specified and directed by Engineer-in-Charge.

S&F replacement MCB SP 6 to 32 AMP MCB single pole 240 V 10 KA (C-Series) complete all as specified and directed.

Re-Fixing only flame proof switch socket & plug combined in LM6 cable termination box in LM 6. 16A, 250V 2P+earth complete all as specified and directed. (Rotary switch taken down vide item No 1 shall be reused.)

Supply and fixing LED building security light fitting with suitable size bracket/angle to fix security light of 45w IP66 protection LED.

Supply and fix flame proof LED well glass hanging type 60w fitting alongwith making hanging Line arrangement from ceiling to false ceiling of Sudhir switch gears or equivalent in Shyam/ baling complete all as specified and directed.

AC Plant Room

Point wiring with single core 1100 volts grade 1.5 sqmm size FRLS PVC insulated unsheathed stranded copper conductor cable using colour code drawn through concealed conduit & including PVC ,conduit with all accessories Complete all as specified in and including sunk type pressed steel / CI terminal box with 3mm thick hylam Masonite sheet top cover / PVC Board including 1.5 Sq mm FRLS PVC insulated unsheathed copper conductor cable for continuous earth conductor (using green colour) to common earth and connecting to earth dolly for the following.

(a) One light /fan/ call bell point controlled by one switch.

(b) One 5 pin socket outlet 5 Amps on independent board .

(c) One 5 pin socket outlet 5 Amps on same board

All as per item No 5.12 above but with 2.5 sqmm multi stranded copper conductor 1100 volts grade FRLS PVC insulated sheathed cable with FRLS PVC 2.5 Sqmm multi standard insulated unsheathed copper wire for continuous earth on independent board.

Supply and fixing switch piano type flush button type single pole one way 6 Amps 240V front operated.

S & F switch socket outlet 15 Amp, 5-in-1, controlled by one switch (ISI marked) all as per makes given in PS complete all as specified and directed by Engineer-in-Charge.

S&F Switch socket combination 2 in 1, 3 pin 6 A flush type

S&F socket outlet 2 in 1, 6 Amp, surface type.

S&F ceiling rose PVC/polycarbonate, isolated body surface Bakelite 65mm dia three terminals

Supply and fix LED batten 20W fixed on wall/surface connecting with all required accessories like flexible cable from ceiling rose, square boxes etc as directed and specified by Engr-in-charge.

S & F stepped type electronic fan regulator flush type on the existing phenolic laminated sheet etc. complete all as specified and directed.

S&F double door MCB DB made out of 18SWG CRCA steel sheets, Phosphates powder coated with copper bus bar, Earth stud, Din Rail, Polyamide Terminal Blocks for incoming and outgoing circuits, inbuilt loose wire box, Ground terminal blocks, duly pre-wired with thimble flame retardant copper conductors and poly layer for protection SP 240 volts 200 Amps rated bus bar 8 way double door open able compete all as specified and directed.

S&F curve miniature circuit breaker (MCB) of SPN 32 Amp rating 240V, 10kA 'C' complete with connection testing and commissioning.

Taking down exhaust fan and keeping in safe custody for reuse and refixing the same after duly painted and marking of MES number on fan complete with connected accessories as directed and specified by Engr-in-charge .

Taking down ceiling fan and keeping in safe custody for reuse and refixing the same after duly painted and marking of MES number on ceiling fan of size 1200mm sweep complete with connected accessories as directed and specified by Engr-in-charge .make-hovels.

M&L in repair for earthing complete with galvanised steel earth plate electrode size 600x600x6.0mm thick buried directly in ground vertically in a pit of depth not less than 2.25 mtr below ground levels with top edge of the earth plate not less than 1.5 mtr below normal ground level surrounded from all sides by mixture of charcoal and common salt and electrode connected to and including galvanised earth lead wire 4.0 mm dia means of bolts, nuts, check nuts and washers of galvanised steel and GI pipe light grade 20mm dia bore for watering funnel with wire mesh. CI cover with frame, PCC chamber pit with PCC 1:3:6 type C-2 excavation and earth work all as shown in electrical plate No 5 connected to earthing test point all as specified or indicated including testing on completion. NOTES : The unit rate includes for protection pipe and lead wire from top of earth plate up to 7.5 meter above ground level.

Supply and fixing XLPE cable insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade, cross sectional 10 sqmm 2 core, saddle on wall for connection from Main LT Panel to 8 way SPN DB light complete all as specified and directed.

Supply and fixing in repair XLPE cable insulated, armoured heavy duty electric cable with aluminium conductor,1100 volts grade, cross sectional 6 sqmm 2 core. saddle on wall to connect with bldg security light complete all as specified and directed.

Taking down carefully existing aluminium strip, removing material depositing to MES store yard for refixing after roof resurfacing or roof treatment all as specified and directed and making good disturbed surfaces of walls, roof etc all as specified. (Serviceable strip will be reused)

Taking down of copper strip of size 20x3.15mm alongwith insulators and refixing after completion of magazine repair work in all respect complete all as specified and directed by Engr-in-Charge.

M&L for Sub main wiring with 2 x 2.5 sqmm size 1100 volts grade PVC FRLSH insulated unsheathed stranded copper conductor cable using colour code drawn through & including ERW steel conduit fixed to walls, floors & ceiling of suitable diameter with all accessories including all flame proof accessories like bends, clamps, junction boxes, flexible metallic hoses etc., complete all as specified in and including 2.5 Sq mm PVC FRLSH insulated unsheathed copper conductor cable for continuous earth conductor. (To control FLP 16 Amp socket).

LIGHTENING PROTECTION

Taking down and refixing air termination single pointed aluminium rod 12 mm dia and 300mm long with necessary fixing arrangement on suitable plate of aluminium on roof, all as specified and directed by Engr-in-charge.

Re-Fixing only aluminium strip of size 25 x 3.15 mm fixed with suitable saddles & fixing screw etc on roof with rubber & bitumen washer & fixed to insulator on wall for down conductor as fixed in repairs, the rates includes making arrangement for insulators complete all as specified and directed. (Strip taken down vide item no 1 above shall be reused)

Supply and fix aluminium strip of size 25 x 3.15 mm fixed with suitable saddles & fixing screw etc on roof with rubber & bitumen washer & fixed to insulator on wall for down conductor as fixed in repairs, the rates includes making arrangement for insulators complete all as specified and directed.

M & L in-replacement of earthing complete with Gl earth plate electrode of size 60 cm x 60 cm x 6 mm thick 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 the normal ground level connected with Gl Strip 32 X 6 mm by means of bolts, nuts, check nuts & washers of galvanised iron steel including necessary excavation and earth work in any type of soil, removing surplus soil to a distance not exc 50 m with and including PCC chamber in PCC (1:2:4) ,type B1, using (20 mm graded stone aggregate), mild steel angle iron frame made out of MS angle iron of size 40 X 40 X 6 mm thick duly painted with two coats of synthetic enamel paint over one coat of red oxide zinc chrome primer hinged with and including 6mm thick CI cover with handle. watering arrangement with funnel internally secured with wire mesh with 20 mm dia medium grade pipe for watering, 40mm dia light grade GI pipe for lead protection in & including alternate layers of charcoal dust and common salt complete all as shown in electrical plate No 3 of SSR Part-1 (2009) connected to earthing test point all as specified and indicated including testing on completion.

Supply and fix test point terminal block made of gun metal or phosphorus bronze size 75 x 75 x 25 mm thick drilled and screwed including 3 NOS 8 mm dia 25 mm long hexagonal head screws fixed to Gl/ aluminium strip bracket fixed to porcelain insulator in wall, including taking down old unsv test point complete an as specified and directed.

M & L PCC (1:2: 4) type B1, using (20 mm graded stone aggregate) all as specified and directed.

ADDN/ ALTN OF PLANT ROOM AND ALLIED B/R WORKS

Demolition of cement concrete (unreinforced) floor, roof or chajja padding of any description and any position not otherwise specifically provided for complete all as specified and directed.

M&L plain cement concrete 1:3:6 type C-2 (using 40 mm graded crushed stone aggregate) in plinth protection, 75 mm thick, finished even and smooth without using extra cement, including making joints 12 mm wide to the full depth of PCC at every 3 metres and at every change of direction and filling the same with & including bitumen and sand 1:3 by weight without using extra cement complete all as specified and directed.

M&L PCC 1:2:4 type B2 using (40mm graded aggregate), 100mm thick as in flooring including joints.

Taking down cement plaster on brick or stone walls, etc. including raking out joints, hacking for key, scrubbing down with water, etc.

M&L for rendering 15 mm thick in cement mortar 1:4 on fair faces of brick work or concrete surfaces, finished even and smooth without using extra cement complete.

M&L for rendering 10 mm thick in cement mortar 1:6 on fair faces of brick work or concrete surfaces, finished even and smooth without using extra cement complete.

M&L rendering 5mm thick in CM 1:3 on ceiling finished even and smooth finish including sagol finish without extra cement complete all as specified and directed.

Material and labour for preparation of new plastered surfaces of walls and applying two coat of oil distemper over, including 3mm thick wall care putty complete all as specified and as directed.

M&L preparation of old plastered / decorated surfaces of walls and applying one coat of oil bound distemper on plastered/decorated wall surfaces complete all as specified and directed.

M&L for preparation of new or previously untreated plastered surfaces of walls and applying two coats of acrylic antifungal exterior grade paint of CAMOUFLAGE PATTERN on one coat of primer complete all as specified and as directed"

M&L preparation of new plastered surface of ceiling and applying three coat of white wash on ceiling complete all as specified and directed.

M&L for preparation of old surfaces of ceiling etc and applying one coat of white wash complete all as specified.

M&L for preparation of old wall surfaces of any description & applying one coat of acrylic (antifungal) exterior grade paint of camouflage pattern complete all as specified and directed.

M&L for new or old wall complete removal of existing treatment on external wall surface by sanding machine or any other mechanical means thereafter washing, rubbing down the surface, in order to remove dust, dirt, loose particles etc. and fill the visible cracks/joints with crack seal caulking compound after cleaning the surface by clean water. Apply a coat of primer (water based primer) and allow to dry for six hours. Thereafter, apply two coats of water proofing treatment on wall (WB high build anti carbonation cum water proofing including a coat of exterior grade weather proof acrylic emulsion paint by using Airless Paint Sprayer machine at any height of the building by using scaffolding complete all as specified and manufacturer instruction and directed by Engineer-in-charge/GE. MAKE : Pidilite, Berger, Asian Paints and Chemistic. The material used for the treatment must have crack binding ability, water proofing properties and flexible (i.e cover hairline cracks upto 2mm effectively) and be elastomeric. Note : External water proofing treatment on wall at any height of the building including acrylic paint shall be applied by mechanically Airless paint sprayer machine only.

Taking down shutters of any description exc 1 Sqm but n.exc 2 sqm complete all as specified and directed.

Taking down chowkhat or frame with shutter (without taking off shutter from the frame) exceeding 1.5 sqm not exceeding 4.0 Square Metre each , removing from the site including cutting holes required for taking out existing hold fast etc. complete all as specified and as directed.

S&F IInd class hard wood plain solid, straight, chowkats and frames wrought framed rebated on the solid , rounded or chamfered put together with glue pinned at joints.

S&F 35mm thick second class hard wood, plain framed, panelled shutter (Two panel) of 9mm BWP commercial ply or 12mm veneered particle board with commercial veneering on both faces the size of rail land stile as per IS 1003 (Part-I) kiln seasoned and chemically pressure treated .

S&F 300mm long aluminium alloy, anodized sliding door bolts with hasp & staple (bolt type) and fixing clips of sheet cost of extruded sections and fixing bolts and sliding bolts of extruded section or cast aluminium alloy complete all as specified and directed.

S&F butt hinges size 100 extruded aluminium alloy with galvanised mild steel hinges pin anodised and fixed C-21 complete all as specified and as directed.

S&F Extruded aluminium alloy handles, fabricated type anodized size of handle 150 mm complete all as specified and as directed.

S&F Aluminium anodized, barrel tower bolt of extruded section, length of bolt 150 mm complete all as specified and as directed.

Demolition of stone/brick masonry, built in cement mortar including all quoins, arches, pillars etc. but excluding ashlar facings dressed stone work and pre cast concrete articles complete all as specified and directed.

M&L for walling of random rubble, brought upto courses, well bonded, bedded and solidly hearted, built in cement mortar 1:6 all as specified and directed.

Extra over stone walling for hammer dressing to face stones and dressing of face beds and joints as specified of RR wall brought upto courses, maximum depression n.exc. 20mm in granite or trap stone complete all as specified and directed.

M&L for raised pointing to random or polygonal rubble masonry uncoursed or brought upto course in CM (1:4) complete all as specified and directed.

Demolition of cement concrete in ground floor and paving not exceeding 15cm thick below or above ground level un re-inforced complete all as specified and directed. .

M&L PCC 1:4:8 type D-2 using 40 mm graded aggregate as in flooring complete all as specified and as directed.

M & L for cement concrete 1:2:4 type B2 (using 40mm graded stone aggregate) as in surface channel or drain complete all as specified and directed.

Demolition of pre-cast concrete block masonry built in cement mortar including all quoins, arches, pillars etc. and pre cast concrete articles complete all as specified and directed.

M&L for pre-cast cement concrete block masonry with solid blocks in 10cm in width in type B1 (1:2:4) and setting in mortar (1:6) complete all as specified and as directed.

Extra for forming fair finishes for drain / channels 60cm inner girth in cement concrete using extra cement including forms, moulds etc complete all as specified and as directed.

M&L for cement concrete 1:2:4, type B-1 using 20 mm graded stone aggregate as in lintels upto 1.5m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, water troughs and the like including weathering, slightly rounded or chamfered angles and throating, as directed

Providing and fixing Powder coated aluminium (minimum thickness of powder coating 50 micron) for shutters of doors, windows & ventilators including providing and fixing hinges/ pivots and making provision for fixing of fittings wherever required including the cost of EPDM rubber/neoprene gasket required (Fittings shall be paid for separately) with extruded built up standard tubular sections/ appropriate Z sections and other sections of approved make conforming to IS: 733 and IS:1285, fixing with dash fasteners of required dia and size, including necessary filling up the gaps at junctions, i.e. at top, bottom and sides with required EPDM rubber/neoprene gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, rubber beading, Aluminium snap beading for glazing/ panelling, C.P. brass/ stainless steel screws all complete as per architectural drawings and the directions of Engineer-in-Chief

S&F concealed star lock powder coated for aluminium window fixed as per manufacturers instructions all as specified and directed.

S&F for aluminium alloy wire cloth, 0.45mm nominal dia of wire and average width of aperture 1.40mm and fixed with stainless steel wire staples

M&L for 4 mm thick plain glass sheets ordinary quality in any size each pane fixed with aluminium frame work etc all as specified and directed.

S&F for aluminium anodised grill of design DG 104 pattern made out of 10mm dia rod fixed with and including standard aluminium frame of F section of size 23.40mmx15.30mm & 1.4mm thick all as per manufactures instructions complete all as specified & directed. Make- Deco grill or equivalent

Dismantling wall and ceiling boards or insulation boards, any thickness, any description, including cover fillets complete.

M&L for 4mm thick non asbestos fibre cement building designed boards in ceiling fixed or laid /inserted to timber/GI/Aluminium frame work with screws. (Note:- Item rate shall be include any height of Bldgs for scaffolding as all arrangement and removing & refixing the AC duct in the same position)

S&F 605X605 mm anodised Aluminium snap grid frame work for false ceiling in/c fixing of nut bolt clamps with the help of drilling matching etc. complete all as specified and directed. (Note:- Item rate shall be include any height of Bldgs for scaffolding as all arrangement.)

S&F Hangers 6mm dia G.I. (upto 1200mm length) adjusting level fixed to roof slabs by means of ceiling cleats made out of G.I. flat 40 x 3 mm size 60mm long and expansion hold fasteners 12.5mm dia. 40mm long size of grid 605 x 605mm complete all as specified and as directed. (Note:- Item rate shall be include any height of Bldgs for scaffolding as all arrangement.)

S&F 0.50mm thick pre-painted galvalume aluminium zinc coating GI based plain steel sheet having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws etc complete all as specified and directed.

Supply and fix steel work in tubular trusses including special shaped washer etc. complete using ERW or induction butt welded tubes at any height conforming to I. S.1161- 1998 at any height including scaffolding complete all as directed.

M&L preparing of new false ceiling surfaces and apply two coats of oil bound distemper over a coat of alkali-resistant primer complete all as specified and as directed.

Chipping , removing carefully concrete work by low impact hammer ,breaker without damaging the structure & cleaning and disposal of debris out side the premises etc. complete as directed by Engr-in-Charge. Hard concrete should not be removed by force.

M&L for Clean existing reinforcement with wire/ rotary wire brush, making the surfaces free from loose material dirt etc. complete and applying two coats of alkaline rust converting primer FEOVERT of Krishna Conchem or Roff rust cleaner of Pidilite or Dr. Fixit Rust removal or Shali Rust of STP Ltd. on the rebars, including cleaning the reinforcement, wire brushing to remove loose rust spalls, wash the rebars with clean water within 3 min and wipe it dry.

M&L for applying two coats of Epoxy based Zinc primer in a span of four hours over the treated rebars and allow to dry for six hours. The application shall be by brush. Epoxy primer for steel of make / brand - Corroseal-ZR of Krishna Conchem or Dr. Fixit Epoxy zinc primer

M&L for cleaning all loose laitance on the concrete substrate and applying one coat of epoxy bonding agent on exposed concrete surface to ensure bond between old concrete & new concrete by brush application. Make / brand Monobond SBR of Krishna Conchem or Dr. Fixit epoxy bonding agent or Shalicrete URP of STP Ltd.

M&L for Building up the profile of structural members by using latex additives(MONOBOND) modified air cured mortar system (Polymer modified mortar) (1:5:15 = 1 monobond-5Cement-15 sand) -in damaged areas in 30mm thickness including levelling profiling etc complete

M&L for Providing and applying jacketing around columns with Micro concrete (Molith-MC) M40 including all lifts, shuttering, drilling holes and fixing shear anchor as per specification complete. Note: Reinforcement shall be measured and paid separately.(Rates including jacketing, formwork and micro concrete)

M&L for applying concrete protection coating on finished structural members exposed to atmosphere make or brand IPNET of Krishna Conchem or New Coat from Dr. Fixit complete all as specified and directed.

M&L for Drilling and fixing Rohibb Teflon nozzles in RCC members, including drilling holes of 12mm dia, 50 to 100mm deep holes. Works shall be carried out as under :- (i) Cleaning of holes. Clean the holes by air blower prior to fixing nozzles. (ii) Fixing of nozzles. Insert 12mm dia. Rohibb Teflon nozzles in cleaned holes. External end of nozzles to be machine to receive outlet of grouting gun. Fix it inside the holes by applying thixotropic epoxy putty to ensure complete sealing. Cure the system for min.12 hrs. (iii) Cutting of nozzles. Cut the nozzles by chisel after completion of grouting without damaging structural elements. (iv) In case crack upto 2mm wide, fix the injection nozzles directly over the cracks, at intervals of 6 to 9 inches, using a drilling machine. Fix PVC/MS nozzles in these holes with fast-setting epoxy putty & let it dry for 2 to 3 days. Also, seal the crack between the ports with epoxy putty. (v) In case where the crack is wider than 2mm upto 4 to 5mm, drill holes at the sides of the crack in a staggered fashion, at intervals of 6 inches and affix them with epoxy putty as mentioned above. (vi) Also, seal the face of the crack with a liberal application of the epoxy putty.

M&L for Injecting of site mixed cement slurry grout, mixed in specified proportion containing cement, sand water with addition of plasticizers (approved make) & migratory corrosion inhibitors, water cement ratio shall be varied between 0.5 to 1.0 for each hole, shrinkage compensating cement slurry mixed to a lump free fresh creamy consistency ,Mixing shall be done by mechanical mixer continuously stirring mechanically to keep cement particles in suspension. Injection of approved/specified grout by means of pump at a pressure of 3-5 Kg/cm2 etc complete till the grout mix flows out from the nozzle indicating complete filling of grout in the holes drilled. Make / brand of Epoxy grout - Dr. Fixit Epoxy injection or EPCO KP-HP-250 of M/s Krishna Conchem or Shaligrout EI of STP Ltd.

M&L for Injecting low viscosity (3-5cps) high molecular weight monomer by pressure and using mechanized injector gun with accessories till nozzles refuses to accept the grout, Including, Mixing of materials, Mixing of material components(part a&b) in the required quantities as per manufacturer's instruction by weigh batching. Grouting, Fill the grouting gun with concrete penetrating corrosion inhibitor EPCO-KP-100/Protectsil CIT or Ferogard 903. Maintain desired pressure in the gun by air compressor; maintain the pressure at exit(2 to 3kg/cm2) by monitoring pressure gauge at exit. Grout the material through prefixed nozzles in the structural elements@ 100ml per nozzle. Repeat the process for all the nozzles.

Replacement of steel reinforcement with TMT bars of appropriate size where 30% of cross section is reduced including dismantling of rusted steel complete all as specified and directed.

M&L for 2mm thick polymer natural / synthetic anti static flooring fire retardant compression moulding conductive flooring having electrical residence floor surface to earth between 50 kilo Ohms to 2.5 mega Ohms measured with wet electrode in accordance with details contained in STEC pamphlet No 7 all as specified, fixed over and including copper strips grid work using 50mm x 0.5mm thick forming 0.9sqm grid, joints of copper strips, brazed on the existing surface including cleaning & preparation of surface by passing with the suitable adhesive. The copper grid provided with diagonal earthing. The earthing resistance shall not exceed one ohm. The copper strip work shall be fixed to the existing floor at the 0.6m to 0.9m all as specified and as per manufacturer instructions all as specified and directed including removing existing PVC flooring. complete all as specified and as directed.

Dismantling of stone slabs & tiles of any description or thickness in floor aprons, cills etc laid bedded & pointed in any mortar complete all as specified and directed.

M&L for green Marble work 18 to 20mm thick (table rubbed and polished) in steps, jambs, pillars, window cills, cooking platforms and rendering 10 mm thick like in cement mortar (1:3) including pointing in white cement (1:2) using marble dust with admixture of pigment to match with marble complete all as specified and directed.

Complete removal of existing water proofing treatment of any description in any position including cleaning, wire brushing, watering, removal of debris upto 1500mtr distance as directed by Engineer-in-charge complete all as specified and as directed.

M&L for brushing neat cement slurry with 3.00 Kg of cement per Sqm

Demolition of cement Concrete of any description and in any position not otherwise specifically provided for un re-inforced complete all as specified and directed. .

M&L for PCC (1:2:4) type B-1 (using 20 mm graded stone aggregate) as in roof/chajja padding for maintaining roof/chajja slope complete all as specified and as directed.

M & L for rendering 10mm thick in CM 1:3 on roof top surface including WPC by weight of 3% of total cement content complete all as specified and as directed. Note : WPC will be measured separately

M&L for cleaning the new surfaces concrete with wire brushing and applying water proofing treatment as under:- (i) Apply oil bound bitumen primer @ 0.40 Litre/Sqm manufactured by the same agency as that of APP with density of 0.87 to 0.89 Kg/Litre at 25 degree Celsius on the prepared dry roof surface. (ii) Laying torch applied APP polymer modified membrane 4mm thick with non-woven polyester mat as reinforcement weighing n. less than 4.50 Kg/Sqm with white gravel/mineral finished by thermo fusion process all as described under particular specification (iii) Over the membrane, provide a finishing with two coats of Solar reflective bituminous aluminium paint @ 0.10 Kg/Sqm as prescribed by manufactures. NOTE: The contractor will be permitted to use materials procured from any one of the manufacturer mentioned above. However , the materials for the entire work shall be of from one manufacturer only.

Supply only integral water proofing compound

M&L in repairs Aluminium / copper strips 25 x 3.15mm with saddles and fixing screws etc. for roof conductors and down conductors above ground complete all as specified and as directed.

S&F vitreous china porcelain insulator with busbar support white type, complete all as specified and directed including taking down old insulator.

M&L for PCC (1:2:4) type B0, using (12.5mm graded stone aggregate) blocks of size as per IE rules including necessary use and waste of form work as in grouting of porcelain insulator complete all as specified and as directed.

Dismantling floor, hearth or wall tiling including cement mortar bedding ( but not backing), removing serviceable tiles to store and rubbish off the premises complete all as specified and directed.

M & L for joint free non-skid coloured ceramic tiles 7 to 8mm thick (square/rectangular) area of each tile exceeding 0.18 sqm but not exceeding 0.38 sqm in floors etc set and jointed in neat cement slurry and pointed in white or coloured cement to match including 15mm thick screed bed in CM (1:6) etc complete all as specified and directed.

S&F in repair rolling shutter without ball bearing, thickness of laths 1.25mm as specified including top cover, anchoring rod, helical spring, hasp and staple, rubber beading and one shop coat of primer; erected in position as indicated, complete, gear operated type with bevel gear box and crank handle.

M&L for preparing new or previously untreated steel surface of any description over 10cm in width or girth and applying 2 coats of aluminium paint over one coat of red oxide primer complete all as specified and directed.

S&F rubber sponge gasket of 20mm thick and 40mm width fixed with and including approved adhesive complete all as specified and s directed.

COMPREHENSIVE MAINTENANCE OF AIR CONDITOINING

Comprehensive maintenance comprising of routine, preventive & breakdown maintenance of chilled water type central air conditioning plant of capacity 70 TRx2 (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 8.011 here-in-before

1 year after completion of BOQ item No 8.012 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 panel 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 @ Rs 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 2 x 70 TR ( One plant each to be run at a time and one will be kept as stand by) 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 03 shifts in a day 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. 9.011 here-in-before

11 months after completion of BOQ item No. 9.012 here-in-before

11 months after completion of BOQ item No. 9.013 here-in-before

11 months after completion of BOQ item No. 9.014 here-in-before

05 months after completion of BOQ item No. 9.015 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 appliable) 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 Rs 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.

somnath engineering corporation

Shree Ayyappa Engineering

pk Enterprises