Indian Institute of Technology Kharagpur Tenders

overhauling and servicing of ceiling fan/exhaust fan/wall fan/ pedestal fan by checking the wire insulation,connection and applying new grease to the bearing, oil seal cleaning & oiling, replacement of bushes and shafts, nuts & bolts,safety pin, insulator etc as required.

Supply, Installation, Testing & Commissioning of Air Cooled type outdoor units of VRF system having hermetically sealed inverter scroll compressor, condenser coil fabricated from Seamless Copper tube & Plate type Al. Fins of Multi Row, Axial Flow, top discharge throw condenser fan, Condenser fan - motor unit, all system controls-safety. The system should have flexibility to handle total 280 Rmt of ref. piping. ODU shall be placed on structure with heavy duty anti vibrational pad to protect the system from any kind of unwanted vibration. The system shall have minimum COP of 3.7 at ARI condition as per CPWD guidelines. Each Outdoor units with High Pressure switch, Fan driver overload protector, Over current relay, Inverter Overload Protector & Fusible Plug. The unit shall be suitable for 415 ± 10 % volts, 50 Hz, 3 phase AC supply, and IP protection will be suitable for outdoor installation. The VRF System shall have green ref. gas only- R410A/ R407.The Indian Seasonal Energy Efficiency Ratio (ISEER) of the unit shall be as per Energy Conservation and Sustainable Building Code (ECSBC) 2024 asbelow and complete as per CPWD specification, connections, inter connections etc. as required. (For capacity <40 kWr ISEER 6.4, Capacity >40 and <70 ISEER 6.5, Capacity > 70 ISEER 6.6 for ECSBC+ Building)

Routine civil maintenance work in Academic Zone (For Steel Technology Centre, Aerospace Engineering dept., Materials Science Centre, JCG & PCR G+7 Building, Ocean Engg. and Naval Architecture Dept., New Chemical Engineering Annex Building, SMST (old NCC), Central Store, RDC, CRR Building & Others) for the year 2025-2026