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| 1 | Supply of Floor Mounted, bottom discharge, Air Cooled DX type Precision type Air Conditioning (PAC) units for server room application, equipped with advanced industry technology to operate at higher return air temperatures, guaranteeing precise control of Data Centres and server room. The units shall be selected on the basis of following parameters:i) Gross total cooling Capacity: 08TR (For round the clock operation: 1 Working + 1 Standby, but rates shall be given per unit only)The Indoor unit shall comprise of Variable Capacity Digitally controlled Scroll Compressor, Fibreglass corrosion resistant In-floor EC fans, Evaporator DX Cooling Coil with hydrophilic coating, Microprocessor Controllers, Expansion valves, Driers, G4 Filter, Suction and Discharge piping, Internal power and Control wiring, Crankcase heaters, Infrared Humidifier (Non-Electrode), Heaters, HP/LP Cutouts, Power and Control contactors, water leak detectors, Composite Material Evaporator Blower (Backward curved type fan with EC motor), compressor shall be charged with R 410A (or other environment friendly refrigerant with ODP zero) and other electrical accessories. Suitable angle iron frame shall be made for resting indoor unit as to be required as per OEM.The system done by multiple units shall work with efficient cascade way, trying to maximise energy efficiency always working where EC Fans are more effective.The Outdoor Condenser unit shall comprise of Condenser fans & motor, Condenser cooling coil (Copper coil with aluminium fins), Fan speed controller, Isolator switch. Suitable foundation made of concrete / brick work and angle iron frame etc. shall be made before placing condenser units. The condensing temperature of matching air cooled condenser upto 51 Deg C at design conditions.The unit shall be suitable for operation on 415 Volts, 50 Hz, 3 Phase, 4 Wire ac supply. Each unit should be having individual display panel, which shall display date, time, actual & set values, operating conditions, signal faults, collective faults, limiting values and PAC wellness alarm / service alarm to reduce the down time and unit memory shall hold not less than 400 most recent events with ID number, time and date stamp for each event.Unit should have integrated system of same OEM to support notification - email and SMS to user. Same should be web accessible from anywhere in LAN or WAN Solution has Dual Power redundancy, Network redundancy built in Monitoring Application redundancy at active (multiple managers can work together) Supports multiple monitoring protocols (Modbus, SNMP, etc), unit will support Temperature, Humidity sensor, Water leakage sensing device, door sensor, Smoke detection and Sound and alarm alarms should support max 16 Analog Input sensors or 16 Analog outputs and 18 Digital outputs with additional appropriate cards. Shall be having capability to support max 32 intelligent device like UPS, precision cooling units, generator sets and etc irrespective of SNMP or Modbus to monitor the health and status of them. The entire unit shall be recharged with required refrigerant before commissioning at site. The work includes Sequencing of both PACs shall be done with D-link and Cat-6 cable as per requirement. (Suggested makes of PAC are Schneider / Emerson / Vertiv / nVent or any similar superior make)[Each means for one unit of 08 TR capacity) |
| 2 | COPPER REFRIGERANT PIPING: Supplying, Installation, testing and commissioning including vaccumiazation and Nitrogen testing of following nominal sizes of soft/hard drawn copper refrigerant piping for PAC system, complete with fittings, with suitable adjustable ring type hanger supports, jointing/brazing including accessories, insulated with XPLE Class-O tubular insulation/with Class-O closed cell elastometric nitrile rubber tubular sleeves sections of 19 mm thick insulation as given below for Suction and Liquid lines, all accessories as per specifications etc. as required : |
| 3 | 9.5 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm |
| 4 | 12.7 mm dia (OD) (Soft drawn) with tube thickness 1.2 mm |
| 5 | 22.2 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm |
| 6 | 28.58 mm dia (OD) (Hard drawn) with tube thickness 1.2 mm |
| 7 | GI TRAY SUPPORT: Supplying and installing following size of perforated Hot Dipped Galvanised Iron Cable tray (galvanisation thickness not less than 50 microns) with perforation not more than 17.5% in convenient sections, joined with connectors, suspended / supported from the ceiling / wall with GI suspenders including GI bolts and nuts, GI C-Channels, etc. including bends, reducers, Tees, cross-members as required, GI protective sheet covering (for outdoor portion) outside the room etc. as required. |
| 8 | 225 mm width x 50 mm depth x 1.6 mm thickness |
| 9 | DRAIN PIPE: Supplying and laying of ISI marked UPVC pipe of 32 mm dia for draining of sweated water from AC evaporator (indoor) unit including providing tee, joints, elbows, supports, etc. insulated with XLPE class - O tubular insulation / woth Class-O closed cell elastomeric nitrile rubber tubular sleeves sections of 9 mm thick etc. complete as required. (Acceptable make: Supreme / Astral / Prince / Ashirwad / Prakash) |
| 10 | Supplying and laying and connecting of humidifier piping inlet connection with UPVC pipe with isolation valve including T-connection from nearby water source (not more than 20 metre long), including prper saddling / fixing etc. complete as required. The size of pipe shall be as per OEM guideline. [1 job means - arrangement for both PACs] |
| 11 | Supplying and laying of ISI marked PVC insulated armoured XPLE copper cable of following size of 1.1 kV grade conforming to IS:7098 on surface / above false ceiling etc. as required. (Acceptable make: Havells / Universal / Gloster / Finolex / Polycab / RR Kabel / KEI / Rallison) |
| 12 | 3 core x 2.5 sqmm |
| 13 | 4 core x 10 sqmm |
| 14 | Supplying and making end termination with brass compression gland and tinned copper lugs for following size of PVC insulated and PVC sheathed / XLPE copper conductor cable of 1.1 KV grade as required. |
| 15 | 4 X 10 sq. mm (25mm) |
| 16 | 3 core x 2.5 sqmm |
| 17 | Supply, fixing, installation, testing and commissioning of motorised (On-Off type) duct mounted GI / Al volume control damper with actuator, sensor and necessary control for integration with PAC complete with gaskets, nuts, bolts, screw linkages, flanges etc. as required. |
| 18 | Supply and fixing of access raised floor which shall be medium grade FS800H with point load of 363 KG/ over 25 mm sq. and UDL of 1360 KG /sqm panels manufactured from steel with lightweight cementitious core in the size 600×600×32mm. The bottom of the panel shall be embossed in hemispherical shape to give strength and flexural rigidity on the exposed surface for lifetime protection and shall be zinc whisker free. The panel has to be placed on the pedestal made from all steel zinc plated construction . Pedestal base plate 100 x 100 × 2mm pipe 350mm FFH x 1.2mm x 25mm dia top plate 75mmx75mm x 3.5mm assembly shall provide for easy adjustment of leveling and accurately align panels to ensure lateral restrain. Pedestal head shall be designed to avoid rattle or squeaks. The steel base plate of the pedestal shall be fixed on to the sub-floor with epoxy pedestal adhesive and /or mechanical fixing. An all-steel rectangular stringer 565mm x 20 x 30 x 0.8mm system having pre punched holes at both ends to ensure correct alignment with pedestal heads be applied for maximum stability. The panel shall be finished with high abrasion anti-static HPL in size 600×600×1mm with beading on all sides to provide protection of edges complete as required. |
| 19 | Supply and fixing of the access false ceiling with steel frame in grid formation of size 600mm x 600mm grid type with cementitious lightweight core in the size of 600mm x 600mm having frame height of 300mm from the ceiling including dismantling and shifting of existing false ceiling material of the same room to the desired location in the campus complete as required. |
| 20 | Supplying, laying, fixing, testing and commissioning of following thickness closed cell elastrometric nitrile rubber of class 'O' applied by suitable adhesive, as per specifications and as required complete in all respect. |
| 21 | 19 mm |
| 22 | Providing and fixing 4.00 mm dia copper wire on surface or in recess for loop earthing alongwith existing surface / recessed wiring / cable as required. |
| 23 | Providing and fixing following rating and breaking capacity 4 pole MCCB with thermomagnetic release as per following and terminal spreaders conforming to IS/IEC 60947-2 & IEC 60947-2 in sheet steel enclosure including drilling holes, duly factory painted as required, making connections, etc. as required. (Acceptable make: Havells / Legrand / L&T (LK) / C&S / Siemens / GE Power / Crompton) For main power connection. (Ref SS Enclosure type: L&T Cat No. CM90996OOOO, Size -1) |
| 24 | 40 amp, 25 kA, FPMCCB |
| 25 | Supplying and fixing TPN sheet steel enclosure on surface / recess alongwith 25 amp, 415 volt, \\"C\\" curve TPN MCB complete with connections, testing and commissioning etc. as required. |
| 26 | Earthing with G.I. earth pipe 4.5 Meter long, 40 mm dia including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc. with charcoal/coke and salt as required. |
| 27 | Providing and laying earth connection from earth electrode with 6 SWG dia G.I. Wire in 15 mm dia G.I. pipe from earth electrode including connection with G.I. thimble excavation and re-filling as required. |
| 28 | Providing and fixing 6 SWG dia G.I. wire on surface or in recess for loop earthing as required. |
| 29 | Providing and fixing earth bus of 50 mm X 5 mm copper strip on surface with suitable support for connections etc. as required. |
| 30 | SUB HEAD - 2 (CAMC) (Supplementary agreement shall be formed after DLP) under ARMO Fund |
| 31 | Comprehensive (Routine, Preventive and Breakdown) maintenance of 2 x 8.0 TR PAC system including its all accessories, condensers, evaporator units, time to time checking of refrigerant leakage, electrical circuits, etc. for smooth operation of the entire AC units during the defect liability period of 1 year after date of commissioning as per maintenance schedule. (No payment shall be made separately for this period): 1st Year - 1 Job free of cost |
| 32 | Comprehensive (Routine, Preventive and Breakdown) maintenance of 2 x 8.0 TR PAC system including its all accessories, condensers, evaporator units, time to time checking of refrigerant leakage, electrical circuits, etc. for smooth operation of the entire AC units after defect liability period of 1 year from the date of commissioning as per maintenance schedule. Any breakdown shall be attended within 4 hours of reporting. Spare parts required during breakdown maintenance shall be arranged and replaced by the Contractor. This is applicable for the whole system of AC units installed. (N.B.: 01 Job means during a period of one year) |
| 33 | 2nd year (For 12 months) |
| 34 | 3rd year (For 12 months) |
| 35 | 4th year (For 12 months) |
| 36 | 5th year (For 12 months) |
| 37 | 6th year (For 12 months) Sub head 1 +Sub head 2 Please Enable Macros to View BoQ information |
