OPERATING FEATURES
Now that you are familiar with the thermostat display and buttons, read the following information to learn about the many features of the thermostat.
•COMPUTED ENERGY MANAGEMENT RE- COVERY (EMR) - The thermostat’s microcom- puter automatically calculates the time it will take to change the temperature to the next program setting. Then the thermostat will acti- vate the heating or cooling system to change the temperature so that the desired tempera- ture is reached at the beginning of the next program period. As an example of this feature, assume that you have programmed your ther-
mostat to provide an overnight heating tem- perature of 62°F, and that during the next pro-
gram period, beginning at 6:00 AM, you have programmed a temperature of 70°F. The ther- mostat will automatically activate the heating
system at about 5:00 AM, so that the pro- grammed 70°F temperature is reached by about 6:00 AM.
•AUTOMATIC CHANGEOVER — You can set the thermostat to automatically switch the sys- tem from heating to cooling as needed. First, you must move option switch #4 (located on the back of the thermostat body) to the ON position, if it has not already been done. To do this, press
SYSTEM | until thermostat is OFF. Then, remove |
the thermostat body from the wall. Check the position of switch #4 (the last switch on the right). If it is ON (up), simply put the thermostat back on the wall and restore 24 VAC power. If the switch is OFF (down), use a pencil or small screwdriver to move the switch to the ON posi- tion (see figure at right). Leave the battery out of the thermostat for at least two minutes, to allow the thermostat to reset itself. DO NOT MOVE ANY OTHER OPTION SWITCH, as it may
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