PROVN OF 01 X 60 TR CHILLER UNIT AS STAND BY FOR RADIATION AND ONCOLOGY DEPT OF CH (EC) KOLKATA.

Amount

NOTES :(i)The bidders/contractors are advised to read tender document & all corrigendum/ amendments and General conditions of contracts before entry/quoting the rates. (ii) It is highlighted that the cretin condition of General Condition Of Contracts (IAFW-2249) has been modified as direction of MOD i.e inclusion of performance security, deletion of risk & cost provisions and increase in defects liability period all as specified in tender document. The tenderers should keep in mind while quoting their offer

Supply, installation, testing and commissioning of factory designed, pre-fabricated and floor-mounted air cooled chiller machine of at least 60 TR nominal capacity at site conditions complete with semi-hermetic / hermetic scroll compressors designed for ambient conditions at the site of installation and having independent refrigerant circuits & automatic stepless capacity control, condenser coils having inner grooved seamless copper tubes mechanically bounded to louvered rippled edge aluminium fins, dynamically balanced direct driven condenser fans constructed of die cast aluminium hub, S/T horizontal DX / flooded type evaporator having carbon steel shell and seamless copper tubes with elastomeric insulation, squirrel cage induction motor(s) of appropriate rating with class 'B' insulation, unit mounted star / delta starter(s) along with necessary drive arrangement, lubrication system required for smooth and trouble-free operation of the chiller package as per manufacturer's design, common base frame, interconnected copper refrigerant piping along with elastomeric insulation, valves, flexible connections, expansion valves and accessories to interconnect compressor, condenser, evaporator, expansion valve, etc., microprocessor based control panel comprising of controls including sensors and equipped with a keyboard, LCD touchscreen access input system, protection and monitoring devices to perform control functions, wiring, vibration isolators, gauge panel, automatic safety controls, flow switch at evaporator and condenser ends, and eco-friendly, CFC free refrigerant complete all as specified and directed by the engineer-in-charge. (Note : This chiilar plant shall be as standby and all neccessary connection shall be deemed to be in quoted rates) Make: Bluestar, Trane, Carrier, Voltas or Daikin contd/....

The chiller shall conform to the following requirements / specifications: [i] Chilled water inlet / outlet temperature: 12 / 7 ºC [ii] Evaporator fouling factor: ≤ 0.00010 ºFft²hr/Btu [iii] Evaporator side pressure drop: ≤ 5 m of H2O [iv] Evaporator water flow rate: 3.5 ≤ litre/min [v] Condenser Coils: 3 rows, 120 ft2 coil face area [vi] Minimum COP @ 100% load: 2.8 at AHRI condition [vii] Minimum IPLV @ 100% load: 3.5 at design condition [viii] Refrigerant (eco-friendly type): R407C / R410A [ix] Test standard: AHRI 550/590 (I-P/2020) NOTES: [i] The unit shall be suitable for 3- Phase, 415 V ± 10%, 50 Hz AC electric supply, with a built-in microprocessor based control panel. [ii] 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. [iii] The quoted rate shall be inclusive of star / delta starter(s), victaulic coupling and system integrator capable of giving industry standard (Modbus / BACnet) output to BMS for critical parameters. [iv] Initial / first charge of refrigerant gas & compressor shall be deemed included in the quoted rate. [v] Necessary civil work viz. foundation for placement of chillers as per OEM recommendation, etc. shall be deemed included in the scope of work.

Supply, installation, testing and commissioning of self-priming, single-stage, centrifugal, monoset pump (chilled water circulation pump) suitable for 7.9 litre/s discharge @ 16.0 mWC head, conforming to IS 9079: 2018 & tested as per IS 5120: 1977 having cast iron casing, enclosed type dynamically balanced cast iron impeller, carbon steel pump shaft, gland packed sealing, deep groove ball bearings, etc. with TEFC squirrel cage induction motor, conforming to IS 12615: 2018, and suitable for operation on 3-Ph, 415 V±10%, 50 Hz AC supply, base plate, mounting channel frame, accessories and fittings, viz. pressure gauges, thermometers, drains, coupling, coupling guard, vibration isolation arrangement by means of spring / rubber type mounting duly insulated with FM approved highly- flexible, closed-cell thermal insulation of elastomeric foam based on synthetic rubber (NBR) of appropriate thickness laminated with 12 micron aluminium foil facing with reinforced glass scrim along with adhesives and other necessary accessories complete all as specified and directed by the engineer-in-charge. Make: Kirloskar Model No. KDS-325++ or equivalent model of Crompton Greaves, CRI NOTES: [i] Necessary civil work viz. foundation for placement of pump and pump accessories shall be covered in the scope of work. [ii] Pressure gauges, thermometers and drains shall be measured and paid for saperately.

Supply, installation, testing and commissioning of double-skin type horizontal, floor-mounted, top / side discharge, air handling unit of 22000 CFM capacity @ 3" w.g. static pressure having thermal break profile complete with air-tight casing using gaskets and self-adhesive tapes, 0.8 mm thick pre-coated outer skin and 0.6 mm thick GI inner skin, 45±2 mm thick double skin panel with pressure injected CFC/HCFC free PUF having 'k' value ≤ 0.035 W/°C/m & density ≥ 40 kg/m³, energy efficient plug fan(s) with backward curved impeller for high static pressure, mounted on aluminium extruded siderail base frame with VFD, EU4 pre-filter and EU7 fine filter (mounted on a common frame), combination of 6/8 rows deep chilled water coil(s) with anti-corrosion aluminium fins, high efficiency (IE3) TEFC squirrel cage induction motor of suitable rating, PVC / nylon hinges & handles, view port & marine lamp, limit switch, SS-304 drain pan, vibration isolators / rubber pads (minimum 1" thick) inspection windows / doors, mixing box and supply / return / fresh air openings fitted with aluminium volume control dampers, thermostat & humidistat, etc. complete all as specified and directed by the engineer-in-charge. Make: Trane, Carrier, York, Flaktgroup The AHU shall comprise of the following: [a] Dynamically balanced SISW backward curved plug fan with AMCA certified blower [b] 4 Pole, TEFC, high efficiency (IE3), squirrel cage induction motor, conforming to IS 12615: 2018, having BHP rating 20% higher than the peak capacity with VFD suitable for 3-Phase, 415 V ±10%, 50 Hz AC power supply [c] Flexible connection made with airtight ASTM E84 (Class I) polyester fire retardant cloth riveted on periphery of cloth with extruded aluminium 'L' angle flange as per fan size at discharge duct / plenum contd/....

[d] Washable type of 'EU4' filter (pre-filter, efficiency 90% down to 10 micron) and 'EU7' filters (Micro Vee filters, efficiency 99% down to 3 micron) [e] 6 / 8 rows deep chilled-water cooling coil section with 0.15 mm thick aluminium fins and 0.36 mm diameter copper tubes tested on 21 kg/cm², with SS sandwiched drain tray, etc. (a 350 mm service section between eliminator and heater is required) [f] Condensate drain pan fabricated from 18 gauge SS 304, powder coated and insulated with elastomeric insulation of suitable thickness [g] AHU panel made out of 2.00 mm thick mild steel CRCA sheet, duly powder coated in compartmentalised construction with incomer and outgoing feeders for AHU motor, 3-way valve actuator motor, fire damper actuator motor, heater bank etc. complete with required variable frequency drive (VFD), relays, timers, contactors, PT, push buttons, switches, internal wiring, etc. The AHU Panel shall comprise of the following: (i) Busbar Chamber (1) 01 Set (3L + N) of copper busbar of rated capacity 100 A, covered with PVC insulated sleeves including insulator, nuts, bolts, etc. with complete connection (ii) Incoming (1) 63 A, 415 V, 50 Hz, FP MCB (C- curve)- 01 Nos. (2) Cl 1.0 multi-function meter capable of measuring V, A, F, PF, W/VA, Wh/VAh, Runhrs. Onhrs & interupts- 01 Nos. (3) LED phase indicators (Red, Yellow, Blue)- 01 Set (iii) Outgoing (1) 32 A, 415 V, 50 Hz, FP MCB (C- curve)- 01 Nos. [for AHU fan motor drive] (2) 6 A, 230 V, 50 Hz, SPN MCB (C- curve)- 02 Nos. [for PICV & fire damper actuator motors] (3) LED phase indicators (Red, Yellow, Blue)- 01 Set (4) Cl 1.0 digital ammeter of suitable capacity with suitable CT- 01 Nos. (iv) VFD Variable Frequency Drive (VFD) of 15 kW rating with IP 55 enclosures and mains disconnect switch and comprising of the following complete with accessories of Danfoss, Schneider, L & T, ABB or Fuji make. (1) built-in dual 5% impedance DC link reactor (harmonic filters) on the positive and negative rails of the DC bus of the variable frequency drive (VFD). (2) built-in EMC filters (electro magnetic compatibility filters) for restriction of conducted emissions to comply with IEC61800: 3 (unrestricted distribution): 2004 category C 1 (50 meter) contd/....

(3) three feedback PID controller having capability to simultaneously accept 3 feedback signals from temperature sensors or pressure sensors for process optimization and accordingly control the speed of the AHUs or pumps. (4) integral graphical keypad. NOTES: [i] The price of VFD and other necessary control equipment is deemed included in the quoted rate. [ii] Necessary civil work viz. foundation for placement of AHU, mounting of variable frequency drive (VFD) panel, construction of opening(s) for fresh / exhaust air etc. shall be covered in the scope of work.

FIRE DAMPER M & L for CBRI certified 16-gauge GI fire damper, at least of 120 minutes fire-rating, spring activated on melting of fusible link having melting point 67.13° C complete with smoke detector / thermistor, fusible link etc. and actuator as required for operation, located in the SA / RA ducts, at all fire rated crossovers (shafts, walls, etc.) along with control panel (located in such a way that the reset may easily be done), interlocked with the building management system for the fire detection or HVAC to trip / close in the event of fire / smoke in the respective zone and tested as per UL-555 complete all as specified and directed by the engineer-in-charge. Make: Ruskin-Titus, Lloyd, Caryaire,Mapro,Air-flow The fire dampers shall meet the following criteriaon: [i] Bare fire dampers with 400 mm sleeve [ii] Control panel actuator, including electrical spring type actuator, remote indication of the fire damper position [iii] Interconnection wire for the fire detection & alarm system with the AHU and the smoke dampers [iv] Sealing any openings around the sleeve of the fire dampers with approved fire sealant as per the specification & recommandations of the manufacturer.

Motorized, spring return type, combination fire and smoke damper

Control panel actuator, including electrical spring type actuator, remote indication of the fire damper position.

Supply and fixing of black flexible closed-cell elastomeric thermal insulation made of elastomeric foam based on synthetic rubber (NBR / PVC) with self pre-covered self-adhering, UV treated glass cloth of thickness 7 mm / 200 GSM, tested for maximum service temperature 100 ºC as per ASTM C411 & minimum service temperature -50 ºC as per ASTM C534, thermal conductivity λ ≤ 0.037 W/mK at mean temperature θm = 24 ºC as per ASTM C518 / C177, ASTM C335, water absorption by volume ≤ 0.2% as per ASTM C1763, fire spread index (FSI) & smoke development index (SDI) 25/50 as per ASTM E84, flammability HB, V-0 as per UL 94, fungi resistance as per ASTM G21, mould growth resistance as per ASTM E2180-18 / UL 181 and ozone resistance as per ASTM D 1149-18 along with adhesives and other necessary accessories complete all as specified and directed by the engineer-in-charge. Make: Armacell, K-Flex, Aeroflex

19 mm thick thermal insulation (for supply)

13 mm thick thermal insulation ( for return)

Supply and fixing of FM approved fibre-free, super-silent, microbe resistant, easy to apply 10 mm thick acoustic duct lining insulation of open cell elastomeric foam based on synthetic rubber tested for acoustic performance as per EN ISO 354, EN ISO 11654: 1997 & ASTM C 423, service temperature range -20- 85 ˚C as per EN 14706 & EN 14304, thermal conductivity λ ≤ 0.047 W/mK at mean temperature θm = 20 ˚C as per EN 12667, Class 1 surface spread of flame as per BS 476 7: 1997, flammability HB, V-0 as per UL- 94, anti-microbial behaviour (no fungal growth visible with the naked eye & no bacterial growth) as per EN ISO 846, air erosion resistance (no erosion, cracking or delamination at air velocity of 10000 FPM) as per ASTM C 1071- 05, density 140- 180 kg/m3 along with adhesives and other necessary accessories complete all as specified and directed by the engineer-in-charge. Make: Armacell, K-Flex, Aeroflex

DIGITAL THERMO-HYGROMETER Supply and fixing of Indoor type wall mounted digital temperature cum %RH meter (Digital Thermo Hygrometer) complete with large LCD, English display having operating with 12/24H Max/Min temperature and humidity memory function range -50°C to 70°C Temperature accuracy 0.5 ºC and Humidity range 10% to 99% RH Humidity accuracy 5% RH Humidity resolution 1% RH Power source 1*AAA (1.5V) battery complete as specified and directed by the engineer-in-charge. Make: Honeywell, HTC, Hguru,Taylor

AIR CURTAIN Supply, install, testing and commissioning of commercial air curtain unit for prevention of dust and conditioned air losses, made out of MS / CRCA sheet of minimum thickness 18 gauge, finished with two coats of red oxide primer and final coat of synthetic enamel paint (oven baked) with MS - CRC 18 gauge square perforated suction grills, aluminium alloy fans, TEFC, high efficiency (IE3), squirrel cage induction motor, conforming to IS 12615: 2018, having BHP rating 20% higher than the peak capacity suitable for Single-Phase, 230 V ±10%, 50 Hz AC power supply, nozzles etc., complete with fittings, limit switch and accessories so as to produce 1- 1.5 m/s air velocity at floor level for door opening 64" x 84" complete all as specified and directed by the engineer-in-charge. Make: Mitsubishi, Kallerians, Zecon

Note: Schedule of credit (SCHEDULE OF CREDIT) amount of Rs ________ mentioned on Page No ____ shall be deducted from the total quoted amount of BOQ.

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