White Rodgers 1F90W-51 - Manual (Page 12)

12
OPERATING FEATURES
Now that you are familiar with the thermostat
display and buttons, read the following informa-
tion to learn about the many features of the
thermostat.
• COMPUTED ENERGY MANAGEMENT
RECOVERY (EMR) — At installation, the
thermostat can be set to automatically cal-
culate the time it will take to change the
temperature to the next program setting.
Then the thermostat will activate the heat-
ing or cooling system to change the tem-
perature so that the desired temperature is
reached at the beginning of the next pro-
gram period. As an example of this feature,
assume that you have programmed your
thermostat to provide an overnight heating
temperature of 62
°
F, and that during the
next program period, beginning at 6:00 AM,
you have programmed a temperature of
70
°
F. The thermostat will automatically
activate the heating system at about 5:00
AM, so that the programmed 70
°
F tempera-
ture is reached by about 6:00 AM.
The thermostat is configured at the factory
so that this feature is disabled. If you wish
to have this feature, refer to the installation
instructions for this thermostat, or contact
your local heating/cooling contractor.
• TWO HOUR TEMPERATURE OVER-
RIDE — Press or until the
display shows the temperature you
want. The thermostat will override cur-
rent programming and keep the room
temperature at the selected tempera-
ture for two hours. After two hours, the