Backlit Display; Automatic Shutdown - Robertshaw Rs 4110 User Manual

Backlit Display

This thermostat is equipped with a backlight to make viewing the display
easy. Press the
turn off after 10 seconds of inactivity. If the thermostat is wired to have
the backlight stay on all the time the night light can be turned on/off in
the settings menu.
Automatic Shut-Down
The thermostat will not display the room temperature if the temperature
goes higher than 99°F (37°C) or lower than 32°F (0°C).
The display will show HI or LO. The thermostat continues to control
heating and cooling and will resume the display of real time information
when the room temperature is back inside the display's range.
Setting The Fan To ON, AUTO or CIRC
The fan has 3 settings: On, Auto, or Circ. Press the
among the three.
ON: The fan is on constantly. The status of the heating/cooling equipment
has no effect on the fan.
AUTO: Whenever there is a call for heating or cooling the fan will turn on.
CIRC: The fan operates in a cycle of on for 10 minutes and off for 20
minutes. Whenever there is a call for heating or cooling the cycle
stops and the fan responds to the call. The fan circulation resumes
when the call for heating or cooling is satisfied.
button to activate the backlight. The backlight will
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button to switch