Easily installed with no wires needed. Requires the W8665A or the

W8665E RF Receiver Module for operation. Premier White Color Full seven-day program capability; different schedules and temperature set points may be selected for everyday to fit any schedule. Copy key makes programming easier and faster Daylight Savings Time (DST) key for quick change in and out of Daylight Savings Time. Programmable fan operation for added comfort. Easy temporary temperature set point changes for current period, vacation hold (1 to 255 days) or indefinite hold adds to your comfort and energy savings. Frequently used keys are located by the Liquid Crystal Display (LCD) for quick and easy access to information. Attractive styling complements any decor to your delight. Back lighting the large display makes the LCD very easy to read. Configurable features: — °F or °C temperature display — Automatic or manual changeover — Electric or conventional heat fan operation — Adjustable heating cycle rate — 12 or 24 hour clock display — Adjustable range stops.