Comfort Series Programmable Thermostat Comfort Control at Your Fingertips   Auto changeover. Copy previous day feature. Seven-day programmability. Large push buttons and backlit LCD screen. Battery-free operation. Five-year limited parts warranty.   Benefits - Carrier’s Programmable Thermostat allows you to adjust temperature with intuitive programming. Features - When setting up your Programmable Thermostat, you'll appreciate its ease of use. The following features are standard:   Seven-day programmability allows you to select up to four different temperature settings per day with one schedule for weekdays and a second schedule for the weekend. Auto-changeover automatically switches between heating and cooling operation on days when both systems are required. Large push buttons respond quickly to your touch. Hold button temporarily adjusts the temperature without reprogramming your entire schedule.         Specifications