This tender invites bids for the providing and replacement of HVAC compressors at COMSATS University Islamabad, located on Park Road, Islamabad. The department requires supply and installation of MDS McQuay system's digital and fixed scroll compressors along with R-410 refrigerant cylinders. The scope includes testing, commissioning, flashing, vacuuming, nitrogen pressure testing, and recharging of refrigerant gas. The work demands adherence to technical specifications and warranty requirements, ensuring quality and performance in the university's HVAC systems. Bidders must be registered firms on the Active Taxpayer List (ATL) of FBR with valid GST and Income Tax registration. The tender follows the Single-Stage Two-Envelope method through the EPADS online portal. The technical bid must include brand and model details, proof of non-blacklisting, and a minimum of three similar contracts executed in the last five years. A six-month warranty on supplied equipment is mandatory. The supply location is the Store Section behind the Main Library, with labor arrangements included in the cost. Participants should ensure compliance with PEC categories relevant to HVAC equipment supply and installation. Firms must maintain active FBR status and meet all tax obligations for the financial year 2025-26. Bid security of PKR 50,000 in the form of Call Deposit Receipt or Bank Draft is required, refundable upon unsuccessful bids. Non-compliance with mandatory requirements will lead to disqualification. The submission deadline is set for 01 April 2026 at 11:00 AM, with bid opening half an hour later in Room G-6/G-8, Ground Floor, Faculty Block-I, COMSATS University Islamabad. Bidders must submit both online and physical copies of the bid security and documents. The physical address for submission is 2nd Floor, Faculty Block-II, Park Road, Tarlai Kalan, Islamabad. Pro-Tip: Make sure to upload the scanned copy of the bid security on EPADS and submit the original physically on the closing date to avoid disqualification. Also, verify the technical bid for brand and model details as blank or incomplete sheets will lead to rejection.