Aprilaire S84NSU Programmable Thermostat

Take precise control of building comfort and energy use with the Aprilaire S84NSU programmable thermostat. Designed for contractors and facility managers, this Aprilaire thermostat streamlines HVAC scheduling and monitoring with best-in-class programming options—choose all days, weekdays/weekends, or full 7-day schedules to match occupancy patterns and reduce operating costs. The simple, menu-style capacitive touch interface and 1.77" color graphical display make adjustments fast during installation and service. Installer-friendly features use plain language setup and include basic and advanced installer settings, cutting commissioning time—no codes or bulky manuals required. With AA battery power and compact dimensions (3.75" depth and height), the S84NSU fits neatly into retrofit and new construction projects. It also supports integration into home automation and building monitoring systems, enhancing environmental surveillance and security-linked HVAC responses. Backed by a 5-year limited warranty and replacing model 8446, this thermostat offers dependable control for residential and light commercial deployments. Upgrade your HVAC control strategy—order the Aprilaire S84NSU to improve comfort, savings, and system monitoring today.

• Simplifies installation and setup with plain-language menus and installer modes—reduces commissioning time and service calls
• Industry-leading schedule programming (7-Day, weekdays/weekends or non-programmable) for predictable comfort and energy savings
• Intuitive capacitive touch interface with a bright 1.77" color graphical display for quick status checks and easy adjustments
• Built-in HVAC and air filter service reminders plus Heat Blast option to quickly raise room temperature when needed
• Durable design with AA battery operation and a 5-year limited warranty for reliable, low-maintenance performance