Bard 4 Ton Wall Mount Heat Pump Units with Single Phase Power are built for reliable, year-round heating and cooling in larger modular offices, telecom shelters, portable classrooms, and light industrial applications. These durable, USA-built 48,000 BTU self-contained systems operate on 208/230V single phase 60Hz power, providing efficient cooling during the summer and dependable heating during colder months through a reversible refrigeration cycle. With a bottom return and top discharge airflow layout, Bard heat pumps save valuable space and make service access easy. Many models also offer optional backup electric heat strips for enhanced cold-weather performance. Bard’s consistent wall opening sizing ensures easy replacements for older units without costly modifications. Family owned and operated for over 30 years, we proudly offer fast shipping, honest pricing, and expert technical and warranty support.