Residential HVAC & Heat Pump System – NYC Energy Code Compliant

“This project involves the design and documentation of a residential HVAC system utilizing Daikin mini split heat pumps, baseboard heaters, and energy-efficient exhaust fans. The system integrates indoor evaporator units with outdoor condensers, sized at 12,000 BTU capacity, operating on R-32 refrigerant with SEER2 20 and HSPF2 9 ratings, ensuring compliance with 2020 NYCECC and federal DOE standards. The design includes detailed schedules for equipment, insulation, and controls, along with narratives for thermostat programming, system operation, and energy recovery ventilation. Supporting details cover refrigerant piping, vibration isolation, condensate drainage, and code-required insulation thicknesses. The mechanical set provides permit-ready documentation for city reviewers, ensuring code compliance, occupant comfort, and long-term energy efficiency.