Cooling Demand
The thermostat must be in cool mode in order to properly control the cooling equipment. When in cool mode, if the room temperature is higher than the temperature setpoint, a cooling demand is detected by the thermostat.
The thermostat will then activate the cooling equipment to satisfy the demand. Cooling operation is indicated by a snowflake icon in the SYSTEM box as shown in figure 7. When the actual temperature drops below the temperature setpoint, the snowflake icon will disappear. This indicates that the cooling demand has been satisfied and that the cooling equipment has been turned off.
ROOM 79 FAN
AUTO
Use the UP or DOWN arrow keys to adjust the setpoint up or down. The setpoint will increase by 1°F each time the UP key is pressed. The setpoint will decrease by 1°F each time the DOWN key is pressed.
After the desired setpoint is reached, the HOME screen will reappear after about 8 seconds.
Fan Control
The FAN button is located behind the small door on the
If continuous fan mode is enabled, the fan will run continu- ously regardless of whether the heating or cooling equip- ment is running. Also, ON will be displayed in the FAN box as shown in figure 9.
SYSTEM
COOL 
Figure 7. Cooling Demand
NOTE − The cooling equipment is activated for at least 4 minutes if no buttons are pressed during the demand inter- val. Cooling equipment operation is locked out for 5 min- utes after a demand has been satisfied. If another cooling demand occurs during this 5−minute interval, the snow- flake icon will flash; however, the cooling equipment will
ROOM 73
FAN
ON
SYSTEM
HEAT
not run until the 5−minute delay has elapsed.
Adjusting Temperature Setpoint
The temperature setpoint represents the desired tempera- ture of the space around the thermostat. The default tem- perature setpoint is 70°F. To adjust the setpoint, press the UP or DOWN arrow keys to the right of the display screen. The existing setpoint will be displayed just below the actual room temperature as shown in figure 8.
ROOM 69 |
|
| ||
|
| |||
|
| |||
FAN | ||||
|
| |||
| 64 | AUTO | ||
|
| |||
|
|
| ||
SETPOINT | SYSTEM | |||
|
|
| ||
|
| HEAT | ||
Figure 8. Setpoint Display and Adjustment
Figure 9. Fan ON with Icon
If auto fan mode is selected, the fan will only run when the heating or cooling equipment is running. In this case, AUTO will be displayed in the FAN box as shown in figure 10.
ROOM 73
FAN
AUTO
SYSTEM
HEAT
Figure 10. Fan AUTO with Icon
To change from continuous to auto fan mode and vice ver- sa, press the FAN button. Also note the presence of a fan icon in the FAN box. This icon indicates that the fan is run- ning.
Page 3
L3011C THERMOSTAT
