DHW Plate Heat Exchanger and Rooftop Unit Overhaul in Toronto
This project focused on the detailed repair and restoration of critical mechanical systems at a high-rise residential building. The main tasks included servicing a domestic hot water plate heat exchanger and refurbishing a rooftop HVAC unit. These systems play an essential role in maintaining the building’s heating and cooling operations. The goal was to enhance performance, ensure reliability, and prolong the equipment’s lifespan.
The plate heat exchanger exhibited signs of severe scaling and wear, leading to diminished heat transfer efficiency. There were also issues with misaligned components and worn gaskets, which compromised the system’s effectiveness. The rooftop HVAC unit had suffered from prolonged exposure to the elements, causing significant corrosion on the casing and connected piping. Insulation on associated ductwork was deteriorated, resulting in heat loss and energy inefficiencies. The restoration of the domestic hot water plate heat exchanger began with a thorough disassembly of the unit. Each internal plate was carefully cleaned to remove extensive scaling, which had significantly reduced heat transfer efficiency. Our team replaced all worn gaskets and seals, ensuring a tight, leak-free system. Alignment of components was meticulously adjusted, and rigorous pressure testing followed to confirm the system's operational reliability. Upgraded fasteners and hardware were installed to bolster the heat exchanger's long-term performance.
For the rooftop HVAC unit, the process started with repairing the corroded casing, addressing structural weaknesses caused by years of exposure to the elements. All exposed ductwork was re-insulated using modern, high-efficiency materials to eliminate thermal loss. Our technicians performed comprehensive inspections of the air-handling mechanisms, identifying areas for recalibration to enhance overall system performance. The unit was treated with a specialized weather-resistant coating to protect it from future environmental damage, enhancing reliability in harsh conditions.
