HVAC design decisions that improve multifamily project economics

Architects and builders are being asked to deliver more within the same footprint. Higher construction costs, tighter lot sizes, and continued demand for multifamily housing are pushing project teams to rethink how space is allocated. This shift has driven the development of more flexible HVAC system platforms.

Designing for space efficiency

Space efficiency is now a primary consideration across multifamily new construction and retrofit projects. Architects are placing greater emphasis on HVAC integration within the building envelope, and systems with smaller footprints that maintain performance are gaining attention.

Rethinking the mechanical closet

Mechanical closets occupy floor area that could otherwise support living space or more storage. Ceiling-mounted air handling systems offer an alternative. By relocating equipment into the ceiling cavity, project teams can reclaim floor space while maintaining performance.

The inverter-driven, ceiling-mounted Pancake Air Handling Unit (AHU) within the Midea EVOX platform is one example. The AHU is designed to integrate with existing ductwork while avoiding major structural modifications.

Designing within real-world constraints

Projects frequently involve limited ceiling plenum space, existing ductwork, and legacy control systems. Redesigning around these constraints can add cost and delay.

Key considerations include compact equipment profiles, compatibility with standard 24V controls, and sufficient static pressure to support existing duct layouts. The Pancake AHU has dual-voltage capability (115V or 208/230V) and compatibility with RS-485 controls, which helps reduce electrical infrastructure modifications in both new construction and renovation projects.

Maintaining performance and comfort

Reducing a structure’s HVAC footprint does not require sacrificing performance. Modern heat pumps can deliver reliable heating and cooling across climate conditions while supporting smaller footprints and greater flexibility. Midea’s Pancake AHU, for instance, maintains up to 100% heating output at -4°F (-20°C) and continuous operation down to -22°F (-30°C). This level of performance extends reliable comfort into cold-climate multifamily applications.

Inverter-driven heat pumps adjust output in real time to match demand. This improves temperature stability and overall comfort compared to fixed-speed systems. Quiet operation and concealed installation further enhance the occupant experience. These design advantages can also support unit marketability by reducing the visibility of mechanical equipment.

For builders and developers, high-efficiency systems may also align with federal, state, and utility rebate programs.

Integrating HVAC earlier in design

Teams are increasingly considering HVAC systems earlier in the design process, alongside architectural and structural decisions. Solutions such as Midea’s EVOX platform, which includes ducted systems, ductless options, and compact air handling units, reflect this shift. Within EVOX, the ceiling-mounted Pancake AHU serves as a low-profile option for multifamily projects where traditional floor-mounted equipment is not practical and maintaining compatibility with existing systems is important.

Early coordination between architects and builders helps reduce downstream changes. As projects become more space-constrained, that integration will play a larger role in multifamily design and tenant satisfaction. Systems with multiple configurations will become increasingly important for multifamily projects.

Learn more about HVAC design considerations for multifamily projects and Midea’s EVOX platform at mideacomfort.us.

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