Product Spotlight

S-Series Heat Pumps: A Light-Commercial HVAC Solution Even in Cold Climates


Mitsubishi Electric S-Series (PUMY) heat pumps offer an all-in-one heating and cooling solution ideal for large residential projects or light-commercial buildings, such as office and retail spaces.

Available in 36,000 to 60,000 BTUH capacities, the system offers exceptional efficiency year-round and utility cost savings for building owners. Each energy-efficient outdoor unit can connect to up to 12 indoor units. To find the best fit for each zone and the overall interior design, building owners and specifiers choose from a variety of indoor unit styles, including multi-position air handlers, horizontal-ducted units, and ductless options such as wall-mounted units and recessed ceiling cassettes.

The PUMY outdoor unit lineup has expanded to include Hyper-Heating INVERTER® (H2i®) technology in 36,000 n 48,000 BTUH capacities. Engineers and contractors can have confidence when specifying PUMY H2i in northern climate zones, as the systems perform at 100% of rated capacity at 5° F and 78% of rated capacity down to -13° F. Building owners can achieve consistent, reliable heating without seeing a dramatic increase in their utility bills. Additionally, some applications need cooling even when it’s below freezing outside, and count on PUMY for superior cooling performance down to 5° F.

For more information about the S-Series systems, or any of our commercial technology, visit