SITC of 350 TR VFD-Driven Chiller and 350 TR Cooling Towers for Terminal 1 CIAL

Supply, Installation, Testing & Commissioning of 350 TR Horizontal Twin Screw Type Water-Cooled Chiller: Factory-assembled water-cooled chiller unit consisting of a semi-hermetic twin screw compressor directly coupled to an energy-efficient minimum IE4 motor, VFD-driven with Active Harmonics Filter, suitable for 3-phase, 50 Hz power supply. The chiller shall be complete with a shell and tube flooded/falling film evaporator and a water-cooled shell and tube condenser. Chiller evaporator and condenser shall have even pass connections to suit the existing plant room layout. Refrigerant used shall be R-513A/R-134a, factory charged with refrigerant and oil. The unit shall be mounted on a rigid, fabricated steel frame with anti-vibration isolators and an inertia base suitable for indoor installation. The chiller shall have a maximum sound level of 85 dB(A) measured at a distance of 1 meter from the unit under all operating conditions. Chiller evaporator and Condenser shall be ASME certified and U-stamped. The chiller shall be complete with flow switches, temperature sensors, internal refrigerant piping, power and control wiring, and 38 mm thick nitrile rubber insulation. The control system shall be microprocessor-based with LCD/Touchscreen HMI, supporting full automation, real-time monitoring, diagnostics, alarm history and data logging. The chiller shall support native BACnet/IP communication protocol for seamless integration with the Building Management System. The unit shall include all required safety protections such as high and low pressure cut-outs, anti-freeze protection, oil pressure monitoring, motor current protection, overload protection, single-phase preventer, phase reversal protection, earth fault trip and VFD protections. Design conditions shall be: Chilled Water Inlet 55°F, Chilled Water Outlet 45°F, and Condenser Water Inlet 90°F and Condenser Water Outlet 100°F. Performance requirements shall be 350 TR capacity with a chilled water flow rate of 840 GPM and a condenser water flow rate of 1050 GPM. At AHRI 550/590 standard rating conditions, the chiller shall have a COP ≥ 6.2 (≤ 0.567 kW/TR) and an IPLV ≥ 8.1 (≤ 0.434 kW/TR). The ISEER shall be ≥ 7.9, meeting BEE 4 Star rating or above. At the specified project design conditions, the chiller shall have a COP ≥ 5.2 (≤ 0.676 kW/TR) and an NPLV ≥ 5.8 (≤ 0.606 kW/TR). Fouling factors shall be 0.0005 ft²·°F·hr/Btu for the evaporator and 0.001 ft²·°F·hr/Btu for the condenser. The chiller shall be AHRI Certified in accordance with AHRI Standard 550/590 (I-P). All civil works related to RCC foundation, Vibration Isolators, grouting and alignment of the chiller shall be under the contractor’s scope. All electrical works, including supply and installation of cable from the nearest panel to the chiller VFD, termination, earthing and necessary adapters for Cu/Al cables, shall be under the contractor’s scope. The installation shall comply with Kerala Electrical Inspectorate rules and applicable statutory regulations.

SITC of end suction top discharge centrifugal pump-set for rated continuousduty and efficiency, with necessary, Y-D starter placed inside the existing panel if possible, power & control cabling from starter panel to equipment along with ON/OFF push button for local isolation as per KSEI regulation, suitable adapter box if required and earthing of pump, power cable, bronze Impeller, common base frame & necessary, motor, coupling, Inertial bases (pedestal), andvibration isolators, mechanical seal for recirculation of chilled water. The pumpmotor shall be energy efficient to IE 3, be suitable for 415 + 10% volts, 50 cycles, 3 phase, TEFC & Class F insulation. Pump set shall be complete in all respects as required by the standard specification and shall suit the following minimum capacities: Primary water pump set of capacity 840 GPM at 18m of WG head

SITC of Horizontal Split Case centrifugal pump-set for rated continuous duty and efficiency, complete with supply and installation of VFD, along with ON/OFF push button for local isolation as per KSEI regulation earthing, along with required control cabling, motor, bronze Impeller, common base frame, coupling, Inertia bases and vibration isolators, earthing of pump, power cable, and mechanical seal for recirculation of chilled water. The pump motor shall be energy efficient to IE 3, be suitable for 415 + 10% volts, 50 cycles, 3 phase, TEFC & Class F insulation. Motor speed not to exceed 1450 rpm/2900rpm. Pump set shall be complete in all respects as per the technical specifications and shall suit the following capacities: Secondary water pump set of capacity 900 GPM at 50 m of WG head Note: Existing power cable from VFD to the Pump can be used

SITC of Horizontal Split Case centrifugal pump-set for rated continuous duty and efficiency, with necessary Y-D starter placed inside the existing panel if possible, Power & control cabling from starter panel to equipment along with ON/OFF push button for local isolation as per KSEI regulation, suitable adapter box if required, earthing of pump, power cable, and bronze Impeller, common base frame & necessary, motor coupling, Inertia bases and vibration isolators, mechanical seal for recirculation of chilled water. The pump motor shall be energy efficient to IE 3, be suitable for 415 + 10% volts, 50 cycles, 3 phase, TEFC & Class F insulation. Pump set shall be complete in all respects as per the technical specifications and shall suit the following capacities- Condenser water pump set of capacity 1050 GPM at 30 m of WG head

SITC of FRP Vertical induced draft counter/cross flow type Single cell Cooling Towers (CTI Certified) complete with FRP basin, FRP body, VFD compatible IP55 motor Fan, motor shall be min IE3, TEFC and Class F insulation, fill media, distribution basin pipe connections, with drift eliminator, Ladder, supply and installation of Y-D starter in the existing panel, suitably rated cabling from starter panel to cooling tower along with ON/OFF push button for local isolation as per KSEI regulation, all nuts and bolts of SS316, PCC /RCC foundation as required etc. and the equipment shall be compatible withBACNET/ IP complete in all respects as per the technical specifications. The noise level from the cooling tower shall be less than 68 dB(A) at a 10-meter distance from the air inlet side of the cooling tower. Delta T - 10 °F Approach less than- 5 °F Fan efficiency less than - 0.35kW/L/s Wet bulb temperature- 83 deg F Water Flow rate-1050 USGPM

Supply, installation, testing and commissioning of Condenser water piping of 250 mm dia pipes of minimum 1.2mm thickness FRP coated MS "C" class Heavy duty pipes laid between cooling tower pumps ,condenser shells and cooling tower complete with all fittings and accessories like Bends, Tees, reducers, supports, clamps, etc, pipes shall be applied with bituminous primer and painted to colour codes. The item shall be complete in all respects as per technical specifications. Note : The pipes size above 150mm shall be welded black steel pipe heavy class as per IS: 3589, from a minimum 6.35mm thick M.S. Sheet for pipes upto 350 mm dia.

Supply, installation, testing and commissioning of 200mm dia pipes, 50mm PUF insulation with HDPE jacket of 2mm thickness factory fabricated, of MS "C" class Heavy duty pipes complete with all fittings and accessories like Bends, Tees, reducers, expansion joints, rubber support inserts, clamps, insulated with 50 mm thick PUF insulation of 36 Kg/m3 density confirming to standard specification and repairing of damage to building etc. The item shall be complete in all respects as per the technical specifications

SITC of 250 MM dia CI Wafer/Lug type Butterfly Valves in condenser water lines, complete in all respects as per technical specifications. The material of butterfly valves shall be as Body- Cast iron, Disc- Cast Bronze or Stainless Steel, Seat-EPDM rubber, O-ring-EPDM. All butterfly valves shall be designed, manufactured, and tested strictly in accordance with IS 13095:2020 – Butterfly Valves for General Purposes.

SITC of 200 MM dia CI Wafer/Lug type Butterfly Valves in condenser water lines, complete in all respects as per technical specifications. The material of butterfly valves shall be as Body- Cast iron, Disc- Cast Bronze or Stainless Steel, Seat-EPDM rubber, O-ring- EPDM. All butterfly valves shall be designed, manufactured, and tested strictly in accordance with IS 13095:2020 – Butterfly Valves for General Purposes.