Public Works Department Tender

Condensor Unit- SITC of 8.5 TR Capacity Microprocessor based air cooled Condensing Unit Eco Friendly refrigerant,thermastatic expansion valve, Double scroll compressor arrangement for operation with Dx type AHU, and suitable for operation on 415+/-10% Volt, 50Hz, 3 PH AC supply With protection of crankcase heater, HP/LP Cut outs, thermostats, Power and Control contactors for Evaporator Fans, Condenser fans, Compressors and matching condenser units, isolator switch for condenser units. Outdoor Air cooled Condenser unit shall comprise of Copper coil with Aluminium fins and Axial fan with fan Speed Controller. The static pressure of the outdoor unit shall be more than 75 Pa to avoid hot air circulation. The system should give non-stop cooling at 48-52 degrees of outside ambient temperature and provide test certificate. (Make:General/ Hitachi / Voltas/ Daikin/ Bluestar) No extra shall be payable for refrigerant gas & transportation/ shifting work)

FLOOR MOUNTED OPEN TYPE AIR HANDLING UNIT- SITC of Factory designed Double skin construction Floor with Thermal Brake profile suitable for outdoor application with mixing box chamber, FILTER-filter sections with 50 mm thick washable synthetic type Pre filters having efficiency 9EU-4/MERV7)90% down to 10 micron and Fine filters having efficiency 99% down to 3 micron (MERV-14)(Make: FMI// Spectrum /Puromatic ) , COOLING COIL- CoCooling Coil Section suitable with aluminium finned copper tubes (tubes thickness not less than 0.5mm) for Eco Friendly refrigerant, each unit should consist of DX copper cooling coil with 2 independent coil sections having two separate distributors and expansion valve with 6 RD Coil to form independent refrigreation circuit with compressor and condenser in order to meet the breakdwons with one circuit. FAN-It should also consist of DIDW backward curved centrifugal fan (Make -Nicotra/ Kruger/ Caryaire) MOTOR-High efficiency motor consisting of 2nos TEFC motor(1W+1S) (HAVELLS/BHARAT BIJLEE/Kirloskar/ CG), should be compatible with VFD, SS18G Drain Tray with CFC FREE PUF insulation, Vibration Isolators and Fire Retardant Flexible Canvas Connector. Air Handling Unit shall be insulated with 43+/-2mm thick & 38 Kg/m³ density PU foam. thick Sandwich Insulated Panels with Thermal Break Profile with Pre-Coated GSS Outer Skin 0.6 MM Thick Plain GSS Inner Skin 0.8MM thick and with Extruded Aluminium Frame Structure. VCD in Aluminium aerofoil construction to be provided in SA, FA, RA Openings.The motor & blower assembly shall be mounted on Aluminium extruded section only.The bidder shall submit fan performance curves for all fans as well as cooling coil selection sheet. The cooling coils rows shall be as per the selection based on the capacity mentioned below (An Autocadd Generated Drawing has to be approved from EIC before starting of any construction) Capacity:3200-3400 CFM or higher /120-125 MM Static (Make- Zeco / VTS/Edgetech/ Ravi aircon)

UVC EMITTER UVC (254nm) EMITTER for the above AHU's for prevention of fungus in the chilled water cooling coils. The minimum UV intensity in the coils shall be between 600 to 700UW-SEC/CM2 . The unit shall be UL Listed (UL- 1995) (MAKE - Philips/ALFA / RUKS/Aero Pure.)