Infrastructure Evolution & HVAC Retrofitting

Grand Lakes homes occupy a unique space in the HVAC timeline. Built during the transition from R-22 Freon to R-410A, many of these homes have already undergone their first full system replacement. Residents now face second-generation infrastructure challenges:

• Media Filter Retrofitting: Original Grand Lakes builds often featured basic 1-inch filters. Modern IAQ (Indoor Air Quality) standards require retrofitting 4-inch or 5-inch media cabinets to accommodate higher MERV ratings without restricting airflow.
• Drain Line & Secondary Pan Integrity: After 20 years, many secondary drain pans and float switches in Grand Lakes attics have become brittle or clogged. Replacing these during a system overhaul is non-negotiable for property protection.
• Vertical Unit Challenges: Many Grand Lakes floor plans utilize vertical closet installations rather than horizontal attic configurations. This requires precise hardware sizing (like "Compact" cabinets) to fit modern, larger-coil SEER2 equipment into the original footprints.
• Trendmaker Custom Features: Homes built by Trendmaker often included high-end features like oversized master suites and high ceilings that require sophisticated load calculations to prevent "short-cycling" in modern variable-speed replacements.