ClimateMaster’s Tranquility Vertical Stack TSM Series heat pump units are available in 3/4- through 3-ton capacities. The units provide energy-efficient heating and cooling as part of either boiler/cooling towers or geothermal heating and cooling systems. Units include a multiple-speed, permanently lubricated PSC direct-drive blower motor, full-port shutoff valves with memory stop, stainless-steel braided hose kits and an optional preprogrammed, variable-speed high-efficiency ECM motor for optimum CFM. Field-selectable supply air openings allow for maximum installation flexibility and a terminal block located inside the control box facilitates simplified field wiring connections.