This tender invites qualified contractors to supply and install precision control air-conditioning units at Jinnah International Airport Karachi under the Pakistan Airports Authority (PAA). The scope includes dismantling existing 16-ton capacity Denco make split units, transporting them to PAA store, and provisioning new microprocessor-based close control precision air conditioning units with a minimum cooling capacity of 56 kW. The units must meet stringent technical specifications including dual circuits, air-cooled copper-aluminum condensers with coastal protection, and advanced electrical protections. Installation involves concrete foundations, fabrication of MS angle iron frames, CPVC drain piping, refrigerant copper piping, GI sheet ducting with insulation and sound liners, and electrical wiring with PVC insulated copper conductors. The site is located at JIAP Karachi, requiring careful coordination and adherence to airport operational constraints. Bidders must be registered with the Pakistan Engineering Council (PEC) in category C-5 or above with specialization ME-01 and hold valid NTN and Active Taxpayer List (ATL) status. The tender requires submission of bid security amounting to PKR 1,000,000 in acceptable form. The contract duration is 11 months from the date of written order to commence. Compliance with all applicable standards including AHRI, ASHRAE, ASTM, and NEMA is mandatory. The contractor is responsible for testing, commissioning, and providing OEM-trained operation and maintenance training to PAA officials. Warranty and after-sales support for 12 months covering parts and labor are required. Bidders should ensure their PEC registration, FBR status, and technical capabilities meet the 2025-26 requirements. Bid submission deadline is **June 14, 2024** at 23:59:59, with electronic bids submitted via EPADS portal and original bid security submitted physically before bid opening. Bids will be opened 30 minutes after closing time at the office of Sr. Joint Director (HVAC), Room # 3076, JIAP Karachi. The physical address for submission is the same office. Pro-Tip: Make sure to submit the original bid security in a sealed envelope before the bid opening date and time, as failure to do so will lead to outright rejection. Also, carefully review the technical specifications and ensure all required documents including PEC license, NTN certificate, and affidavit for no blacklisting are attached both electronically and physically as per instructions.