AprilAire S86NMU Programmable or Non-Programmable Multi-Stage Universal Thermostat, 2H/2C Heat/Cool Stages or 4H/2C Heat Pump Stages, with Color Display. The AprilAire S86NMU Thermostat is easy to read, easy to set up, and easy to use. Features include a full-color graphical display, capacitive touch interface, and real language set up for easy installation and temperature control.