The Sanyo HVAC CZ-RTC4 Timer Remote Controller is a wired control device designed for use with Sanyo ECOi and PACi air conditioning and heat pump systems. It allows users to manage temperature settings, fan speed, operating modes, and programmable scheduling from a convenient wall-mounted interface. Featuring a built-in weekly timer, the controller automates HVAC operation to improve ... https://www.partshnc.com/cz-rtc4-sanyo-hvac-timer-remote-controller