COMPREHENSIVE MAINTENANCE OF SENSITIVE E/M EQUIPMENTS INSTALLATIONS OF NCN DATA CENTRE AT INS ANGRE UNDER GE(NW) KUNJALI

Annual Maintenance Contract (AMC) from OEM for routine maintenance of Ceiling Mounted Ductable Type Central Air Conditioning Plants, capacity 2.5 TR × 06 Nos, existing make Hitachi, operating round the clock. The AMC shall include 24×7 maintenance to ensure desired room temperature of 21 ± 3°C without interruption, including: (i) Repairs/replacement of damaged or unserviceable minor parts (ii) Controlling valves (iii) Copper tubing and nitrile rubber insulation (iv) Electrical/electronic components (v) Control wiring, sensors, thermistors (vi) Thermocol inner packing materials (vii) Fan motor windings, vibration pads (viii) Painting of rusted outdoor stands and supports (ix) Drainage lines, pre-filters (x) Communication/control wiring, earthing Leak testing and servicing of all accessories The contract includes periodic servicing such as: (i) Daily checks (ii) Monthly servicing (iii) Quarterly servicing (iv) Half-yearly servicing Complete testing of the plant for smooth functioning, all as specified and as directed by the Engineer-in-Charge.

Annual Maintenance Contract (AMC) from OEM for routine maintenance of Package Type Central AC Plants, capacity 5.0 TR × 07 Nos, existing make Hitachi, running in three shifts per day.The AMC shall include 24×7 maintenance to ensure desired room temperature of 21 ± 3°C without interruption, including: (i) Repairs/replacement of damaged or unserviceable minor parts (ii) Controlling valves (iii) Copper tubing and nitrile rubber insulation (iv) Electrical/electronic components (v) Control wiring, sensors, thermistors (vi) Thermocol inner packing materials (vii) Fan motor windings, vibration pads (viii) Painting of rusted outdoor stands and supports (ix) Drainage lines, pre-filters (x) Communication/control wiring, earthing Leak testing and servicing of all accessories The contract includes periodic servicing such as: (i) Daily checks (ii) Monthly servicing (iii) Quarterly servicing (iv) Half-yearly servicing (v) The system shall maintain indoor conditions of 20 ± 2°C and RH 50 ± 5%, operating 24 hours. Complete as specified and directed by Engineer-in-Charge.

Annual Maintenance Contract (AMC) from OEM for routine maintenance of existing BLUE BOX Chiller Units, having capacity: Capacity: 4 × 23.84 TR = Total 95.36 TR Model Nos.: SB10059034 to SB10059037 Type: Screw type, double compressor system The scope of AMC shall include the following: (i) Replacement of damaged electrical/electronic components. (ii) Repair/replacement of motors and connected parts. (iii) Compressor repair along with associated connected accessories. (iv) Day-to-day maintenance of the complete chiller system. (v) Replacement of all minor parts required for smooth functioning of chiller unit. Note: Compressor oil and filters are excluded from the scope of AMC. Complete all as specified and directed by the Engineer-in-Charge.

Annual Maintenance Contract (AMC) from OEM for routine maintenance of Precision Air Conditioning Plants, operating round the clock, maintaining desired temperature of 21 ± 3°C without interruption. The AMC shall include: (i) Repairs/replacement of damaged or unserviceable minor parts. (ii) Servicing of controlling valves, copper tubing and nitrile rubber insulation. (iii) Maintenance of all electrical/electronic components. (iv) Checking and servicing of sensors, thermistors and control wiring. (v) Servicing of indoor/outdoor fan motor windings. (vi) Replacement of vibration pads and painting of rusted outdoor stands/supports. (vii) Cleaning and maintenance of drainage lines and pre-filters. (viii) Maintenance of communication/control wiring and earthing. (ix)Leak testing and servicing of all accessories required for smooth operation. (x) Any other accessories not mentioned but necessary for satisfactory functioning. Complete all as specified and directed by the Engineer-in-Charge.

Outdoor Unit, capacity 24 HP, Make: BLUE BOX – 03 Nos

Four-way cassette type Indoor Unit, capacity 2.5 HP, Make: Hitachi – 06 Nos

Split Hi-Wall Indoor Unit, capacity 1.0 TR, Make: Hitachi – 12 Nos

Split Hi-Wall Indoor Unit, capacity 1.5 TR, Make: Hitachi – 05 Nos

Split Hi-Wall Indoor Unit, capacity 2.0/2.5 TR, Make: Hitachi – 03 Nos

NOte For Item No. 1 to 4.00 above,(a) the AC Mechanic shall attend all complaints, minor faults, routine cleaning, dry servicing of plants and filters. A maintenance register/logbook shall be maintained at site. Sufficient manpower required for carrying out routine maintenance, shall be deemed to be included in the quoted rates. (b) The contractor shall produce valid OEM AMC documents within one week of acceptance of contract. The contractor shall also arrange the visit of an OEM Engineer once every month for inspection and servicing of outdoor units. The monthly serviceability report of the OEM Engineer shall be submitted to this office. All charges towards OEM visits/procedures shall be deemed to be included in the quoted rates. The OEM Engineer’s reports shall be produced before submission of Running Account Receipts (RARs). (c) The AC Mechanic deployed shall be experienced in VRF/VRV plants and capable of carrying out all types of maintenance and attending breakdowns of the above-mentioned plants. (d) In case of any breakdown, additional manpower, if required, shall be arranged by the contractor without any extra cost to the Government. (e) The cost of replacement of all minor parts, even if not specifically mentioned in the schedule, shall be deemed to be included in the quoted rates under Item No 1 to 4

Annual Maintenance Contract (AMC) for Repairs and routine maintenance of 02 Nos Diesel Generator Sets, capacity 910 KVA each, round the clock, including maintaining the alternator for continuous power supply without interruption. The scope of work shall include: (1) Attending breakdowns and carrying out preventive maintenance for smooth operation. (2) Repair/replacement of damaged or unserviceable minor parts. (3) Replacement of fuel filters and oil filters. (4) Maintenance of AMF Panel including all electrical and electronic components. (5) Maintenance of control wiring, sensors, thermistors and associated accessories. (6) Painting of rusted fuel pipes, fuel tank stands and connected supports. (7) Maintenance of drainage lines, earthing, leakage rectification and other accessories. (8) Any other items not specifically mentioned but required for satisfactory functioning. Complete all as specified and directed by the Engineer-in-Charge. The contract includes periodic servicing such as: (i) Monthly servicing reports (iii) Quarterly reports (iv) Half-yearly reports (Total = 02 Nos DG Sets)

Annual Maintenance Contract (AMC) for Repairs and routine maintenance of complete Fire Alarm and Fire Fighting System including the following equipment: (1) Jockey Pump – 15 HP (2) Fire Pump – 15 HP (3) Main Electric Pump – 65 HP (4) Diesel Pump – 95 BHP (5) Complete GI Pipeline network of any diameter (6) Smoke detectors, fire alarm panel and associated alarm system The scope of work shall include: (1) Routine inspection, servicing and attending breakdowns of the entire system. (2) Cleaning of terrace water tank and maintenance of complete water supply system. (3) Repair/replacement of damaged or unserviceable minor and major parts. (4) Servicing of valves, control panels, wiring, sensors and thermistors. (5) Replacement of fuel filters and oil filters of Diesel Pump including connected piping. (6) Painting of rusted pipes, fuel tank and connected supports. (7) Rectification of leakage, maintenance of drainage lines, earthing and accessories. (8) Any other items required for smooth functioning of the fire fighting system. Complete all as specified and directed by the Engineer-in-Charge.

Annual Maintenance Contract (AMC) for Repairs and routine maintenance of UPS Systems through OEM, total 04 Nos, details as under: (1) UPS Capacity 300 KVA – 01 No (2) UPS Capacity 60 KVA – 01 No (3) UPS Capacity 80 KVA – 02 Nos The scope of work shall include: (1) Preventive and breakdown maintenance of all UPS units. (2) Replacement of defective minor parts such as relays, PCB cards, connectors, etc. (3) Monthly testing of isolation transformer. (4) Weekly testing of voltage and current of all batteries. (5) Preparation of battery status chart, duly signed by the Engineer-in-Charge. (6) Painting of battery stands of all UPS systems. (7) Replacement of batteries and jointing of battery interconnecting cables, as required. (8) Any other accessories not mentioned but necessary for proper functioning. Complete all as specified and directed by the Engineer-in-Charge.

Repairs / servicing by dismantling of outdoor unit covers of VRV / Ductable Air Conditioning units of any capacity, complete, by disconnecting and properly covering all electrical and electronic boards, wiring and components, including complete wet servicing of condenser coils, compressor area and refrigerant reservoir area using OEM-approved cleaning chemicals. The work shall further include re-assembling of the unit, setting and calibration of all operating parameters using OEM-recommended software by an OEM-authorized engineer, followed by testing of the unit for satisfactory performance, complete all as specified and as directed by the Engineer-in-Charge.

Repairs / servicing by dismantling of four-way cassette type / high wall indoor unit covers of any capacity, complete, by disconnecting and properly covering all electrical and electronic boards and wiring, including complete wet servicing of cooling coils, expansion valves, indoor drainage pumps and drainage lines using OEM-approved chemicals. The servicing shall be carried out using tray jackets to prevent spillage, including cleaning of unit surfaces after servicing, re-assembly, testing and commissioning of the unit, complete all as specified and as directed by the Engineer-in-Charge.

Supply and charging of fresh Refrigerant gas of approved type and make, as per site requirement, including leak testing, evacuation and complete commissioning, all as specified and directed by the Engineer-in-Charge.

Supply and fixing of sealed new compressor of capacity 24 HP for outdoor units of VRV AC plant, including dismantling of defective compressor, brazing, nitrogen pressure testing, vacuuming, refrigerant charging and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of sealed new compressor of capacity 10 HP for outdoor units of ductable AC plant, including dismantling of defective compressor, brazing, nitrogen pressure testing, vacuuming, refrigerant charging and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of control board (PCB) for outdoor units of VRV plant, including connections, programming and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of M-NET communication board for outdoor units of VRV plant, including wiring, addressing and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of noise filter for outdoor units of VRF/VRV plant, including testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of fan board for outdoor units of VRV plant, including electrical connections and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of inverter board for outdoor units of VRV plant, including programming, commissioning and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of fan motor for outdoor units of VRV plant, including alignment, connections and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of condenser coil for outdoor units of VRV system, including brazing, nitrogen leak testing, vacuuming, refrigerant charging and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of special refrigerant copper ‘Y’ joints / Refnet joints for VRV system, as per OEM standard specifications, including brazing and leak testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of ceiling suspended type inline cabinet fan with filter for fresh air arrangement for VRV system, including supports, connections and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of rigid PVC drain piping 32 mm dia, pressure rating 6 kg/cm², insulated with 9 mm thick nitrile foam rubber, laid in trenches/on walls/ceiling suspended, including all necessary clamps, saddles, supports and fittings, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of refrigerant piping between indoor and outdoor units using eddy current tested, seamless, dehydrated copper pipes complete with all required fittings such as elbows, couplers, tee joints, brass joints, “U” bends, expansion loops, etc. The work shall include: (1) Providing supports made of GI box / “C” section. (2) Supply and fixing of anchor fasteners with fully threaded GI rods at regular intervals of 1.0 metre. (3) Insulation of suction and liquid lines with 19 mm thick elastomeric closed cell nitrile rubber insulation, fire rating Class ‘O’. (4) Covering exposed insulation with aluminium foil cladding (no copper piping shall remain exposed without Al-foil covering). (5) Providing structural clamps with hard PVC sleeves under clamps to protect insulation at support locations. Complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing MCB single pole and neutral enclosure with a two pin and earth plug and socket Modular Type complete with and including one MCB single pole 25 amps, 240 volts 10 KA, C Series complete all as specified and directed.

Supply and fixing PCB for four way casette/hiwall type indoor units of VRV Unit including testing complete all as specified and directed.

Supply and fixing Drain Pump for four way casette/hiwall type indoor units of VRV Unit including testing complete all as specified and directed.

Supply and fixing Blower motor for four way casette/hiwall type indoor units of VRV Unit including testing complete all as specified and directed.

Supply and fixing Linear expansion Valve for four way casette/hiwall type indoor units of VRV Unit including testing complete all as specified and directed.

Supply and fixing Remote Controller for four way casette/hiwall type indoor units of VRV Unit including testing complete all as specified and directed.

Supply and fixing Adressing Board for four way casette/hiwall type indoor units of VRV Unit including testing complete all as specified and directed.

Supply and fixing Cooling Coil for four way casette/hiwall type indoor units of VRV Unit including testing complete all as specified and directed.

Supply and erecting factory fabricated rectangular/square air ducts made out of GI sheet (24/22 gauge as specified) in L-shaped hollow profile, complete with all accessories such as corners, cleats, flanges, carriage bolt hangers, gaskets etc., including sealing of all longitudinal joints with approved sealant, complete all as specified and directed by the Engineer-in-Charge.

Material and labour for internal cleaning of air handling ducts (GI/Al) using special tools and plant such as robotic arm, air compressor, air jet nozzles, flipper system, vacuum pump and suction blower with HEPA filter, including inspection/check before and after cleaning, complete all as specified and directed by the Engineer-in-Charge.

Material and labour for framed work with structural steel sections, including nuts, bolts, washers, welding, bending (cold or hot), drilling holes for bolts, in any shape and size as directed, including applying one coat of red oxide zinc chrome primer and two coats of synthetic enamel paint, complete all as specified and directed by the Engineer-in-Charge.

Taking down old unserviceable insulation from any surface and supply and fixing of nitrile rubber insulation, single layer 15 mm thick, fixed with approved adhesive, including sealing of all joints with weather-proof tape, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in repair chiller water sensor suitable for chiller of existing make BLUE BOX, capacity 23.84 TR, including testing, complete all as specified and directed by the Engineer-in-Charge.

Material and labour for repairs to Local Interface Display module set of existing make BLUE BOX chiller by dismantling from chiller panel carefully by disconnecting all internal communication cables and sensor, transducer supply, replacing damaged chip, electonic transducers/ capacitors/ transmitters/inductors/switches and displaying with new components and re- installing the software and connecting to the chiller unit & testing complete all as specified and directed by the Engr- in- charge.

Supply and filling of compressor oil for chillers, Alkyl Benzene based synthetic oil, ISO high viscosity grade, of approved make, including topping up as required, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in repair filter drier 5/8" MFL, suitable for filtration of chiller refrigeration circuit, including necessary brazing, leak testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in repair filter core (multilayer filtration medium) suitable for chiller filtration system, including replacement and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in repair filtration kit with CI body having 4-1/2" flare connection on both sides, suitable for chiller unit, including fixing and testing, complete all as specified and directed by the Engineer-in-Charge.

Supply & fixing in repair filter (low side and oil reclaim) suitable for chiller Alkene benzene based compression oil with 5/8" flare connection on both ends and CI body of chiller complete all as specified and directed by the Engr- in- charge.

Pumping down of refrigeration plant to recover existing refrigerant, followed by leak testing of the complete system by charging with dry nitrogen gas and monitoring for 24 hours to detect leakage. The work shall include: (1) Rectification of leaks by brazing and replacement of gasket/packing wherever required. (2) Vacuumizing of the plant using vacuum pump and holding vacuum up to 24 hours for testing. (3) Final recharging of refrigerant gas to maintain standard operating pressure. Complete testing and commissioning, all as specified and directed by the Engineer-in-Charge.

Removing the worn-out control wiring completely and rewiring with suitable copper conductor cables, including replacement of lugs and connections from starter to compressor motor and fan motor. The work shall include: (1) Wiring for timer, heaters, relays, thermostat, HP/LP cut-outs and complete interlock system. (2) Checking and ensuring proper functioning of all safety controls and interlocks. (3) Testing the system on full load. (4) Mounting all wiring on cable tray of size 200 mm × 50 mm. Complete all as specified and directed by the Engineer-in-Charge.

Taking down old unserviceable aluminium/plastic rectangular duct grills of any size and make, and supply and fixing of new aluminium fresh air/return air grills complete with frame work, gasket and all connected accessories complete all as specified and directed by the Engineer-in-Charge.

Material and labour for repairs to Microprocessor of chiller/ Ductable/ package unit including replacing diodes , transistors and wiring etc for AC Plant as specified and directed

Material and labour for repairs to Digital Display Kit Board of chiller/ Ductable/ package unit including replacing diodes , transistors and wiring etc for AC Plant as specified and directed

Supply and laying in repair cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded copper conductor of size 185 sq mm 3.5 core. laid in trench/ duct / along pole/wall etc including making connection complete all as specified and directed by the Engr- in- charge. Note : 1. The cost of thimbles/lugs and cable gland etc is incl in quoted rate and no extra payment will be made for it.

Supply, installation, testing and commissioning of ACB 4 Pole, 415 V, with thermal magnetic release (manual draw-out type with microprocessor release), of capacity 2000 Amps, including necessary fabrication work in panel, complete. Complete all as specified and directed by the Engineer-in-Charge.

Supply & fixing MCCB FP 160 Amps,36KA,thermal magnetic,415volts complete all as specified and directed by the Engr- in- charge.

Supply & fixing MCCB FP 200 Amps,36KA,thermal magnetic,415volts complete all as specified and directed by the Engr- in- charge.

Supply & fixing MCCB FP 350 Amps,36KA,thermal magnetic,415volts complete all as specified and directed by the Engr- in- charge.

Supply & fixing MCCB FP 400 Amps,36KA,thermal magnetic,415volts complete all as specified and directed by the Engr- in- charge.

Supply and filling of engine oil SAE 20W-40, of approved make, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of copper strip size 20 mm × 3.15 mm with saddles, clamps and fixing screws etc. for roof conductor and down conductor above ground, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in repair of 50 sq mm single core copper cable as main earthing lead, fixed on wall with clamps or laid in recess, or buried in ground, or drawn through conduits/pipes, or fixed to poles, in any other indicated position for loop earthing, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of battery of capacity 12 Volts, 200 Ah, suitable for UPS system of 300 KVA, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of battery of capacity 12 Volts, 42 Ah, suitable for UPS system of 60 KVA, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing of battery of capacity 12 Volts, 100 Ah, suitable for UPS system of 80 KVA, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of addressable multi-sensor photoelectric smoke cum thermal detector, complete with mounting base, testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of addressable manual call point, resettable type, including testing and commissioning, complete all as specified and directed by the Engineer-in-Charge.

Supply and laying of PVC insulated unarmoured cable, 2 core × 1.5 sq mm, stranded copper conductor, complete with all necessary clips/supports and connections, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of 13W LED batten, warm white colour, with minimum efficacy of 120 lumen per watt, complete with all accessories, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of 34W LED batten, warm white colour, with minimum efficacy of 120 lumen per watt, complete with all accessories, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of 32W LED 2x2 ceiling mounted luminaire, warm white colour, CCT 4000K, IP-20, with minimum efficacy of 120 lumen per watt, complete with driver and mounting accessories, complete all as specified and directed by the Engineer-in-Charge.

Supply and fixing in replacement of 15W LED ceiling mounted round downlight, warm white colour, IP-20, including driver, with minimum efficacy of 120 lumen per watt, complete all as specified and directed by the Engineer-in-Charge.

Material and labour for transporting electrically burnt motor to an authorised workshop for rewinding, including strip opening, dismantling of complete rotor and stator assembly, cutting and removal of old burnt copper winding from stator slots and cleaning the stator slots with approved cleaning solution. The work shall further include: (1) Rewinding of complete stator assembly with super enamelled insulated copper winding wire of suitable gauge, as per existing design. (2) Providing minimum two coats of insulation varnish. (3) Baking/drying of stator assembly in heating chamber to improve insulation resistance. (4) Reassembling of motor, transporting back to site and coupling with pumping set with proper alignment. (5) Connecting LT cables, testing on load and commissioning complete. Complete all as specified and directed by the Engineer-in-Charge. Note: The cost of replacement of damaged seals is deemed to be included in the quoted rates.

Openwell submersible pump motor – 10 HP

Jockey pump set motor – 12.5 HP

Submersible sewage pump motor – 10 HP

Attending complaints for all types of pump motors by a qualified mechanic, including checking, testing and servicing of DOL / Star-Delta / PLC starters and associated electrical connections. The work shall include: (1) Checking and setting of relays, timers, NO/NC contacts and main power connections. (2) Fixing and tightening of cable joints and replacement of gland packing of appropriate size. (3) Rectification of pump leakages by replacement of flanges, rubber packing, nuts and bolts of existing size. (4) Cleaning of pump motors and ensuring satisfactory operation after repairs. (5) Replacement of minor consumable spares such as lugs, wires, nuts, bolts, washers, flanges, rubber packing, gland packing, cable joints, motor fan etc., as required. The cost of all such minor spares shall be deemed to be included in the quoted rate by the contractor. Note: Defects shall be attended within 24 hours of intimation. In case the breakdown continues beyond 24 hours, recovery shall be effected at the rate of Rs. 500/- per hour for the period exceeding 24 hours. Complete all as specified and directed by the Engineer-in-Charge.

Material and labour for refilling of FM-200 or NOVEC-1230 or SINOX (Siemens), FK-5-1-12 (Rotarex) gas cylinders, as per site requirement, including disconnecting and safely removing cylinders of any capacity from site, transporting to authorised factory/workshop for refilling and returning the same to site. The work shall include: (1) Replacement of unserviceable pressure gauges, connector pipes, nozzles and other connected accessories, if required. (2) Re-installation of cylinders and testing of the complete system in presence of JE/Engineer-in-Charge. Complete all as specified and directed by the Engineer-in-Charge. Note: The cost of transportation of gas cylinders to the factory/workshop and back shall be deemed to be included in the quoted rate.