Performance Series Programmable Thermostat Comfort Control at Your Fingertips   Auto changeover. Copy previous day feature. One-button vacation mode. Large push buttons and LCD screen. Seven-day programming with four time periods per day. 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:   Easy-to-follow instructions are posted inside the door for quick reference. Copy Previous Day button duplicates the previous day’s schedule for simple programming. Reset Filter button lets you know when the air filter needs to be cleaned or changed. Timer length can be adjusted to your home’s indoor conditions. 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