I executed an air conditioning replacement in a challenging attic space today, requiring careful planning for the best results. The AC replacement involved creating a new platform to better support the air handler and improve service access. During the air conditioning replacement, I upgraded the condensate management system with a safety float switch and auxiliary drain pan to protect the ceiling below. I also installed vibration isolation pads under the outdoor unit to minimize operational noise. After completing the installation, I performed an extended test cycle to verify proper temperature drop and conducted a detailed duct leakage test to ensure maximum system efficiency.