About Advanced Features & Operation
FAN OPERATION - Fan operation is available in four
different modes:
Fan
: When only the fan icon is displayed, this
indicates that the fan is in the Auto mode, will only
energize during a heating or cooling cycle, and will
modulate fan speeds based on temperature demand
(see page 17)
.
Page 20
Fan
,
Fan
, or
Fan
: Pressing the FAN button
will cause the low, medium, or high speed fan icon to
appear
(see page 9)
, indicating that the fan will run
continuously. The fan will de-energize if the thermo-
stat is placed in the Off mode or a dry contact forced
unoccupied time period
(see page 18)
.
1) If a remote sensor is connected to this thermostat,
then the fan should be programmed for continuous
operation (step #5, page 11). This will provide airflow
over the remote sensor and provide more accurate
temperature readings.
2) If the fan is programmed for continuous operation
(step #5, page 11), the low speed fan will run contin-
uously when the fan is in the Auto mode, but will
d e - e n e r g i z e i f t h e t h e r m o s t a t i s p l a c e d
in the Off mode.
Notes:
MINIMAL DISPLAY - When the thermostat is prog-
rammed for a minimal display
(step #1, page 10)
, only
the time of day will appear. When a button is pressed
the full, normal display will appear for 10 seconds.
About Advanced Features & Operation
HEAT/COOL DIFFERENTIAL - The Heat and Cool set-
points will not be allowed to come any closer to each
other than the value set in Advanced Setup
step #7, on
page 12
. This minimum difference is enforced during
Auto-changeover operation.
Note:
To increase the spread between the heating and
cooling setpoints in the Auto-changeover mode press
the MODE button until only the heat setpoint is display-
ed; adjust to the desired setpoint. Press the MODE
button until only the cool setpoint is displayed; adjust to
the desired setpoint. Press the MODE button again to
enter the Auto-changeover mode where both the heat
and cool setpoints are displayed.
KEYPAD LOCKOUT - To prevent unauthorized use of
the thermostat, the front panel buttons may be disabled.
To disable, or ‘lock’ the keypad, press and hold the
MODE button. While holding the MODE button, press
the UP and DOWN buttons together. The LOCKED icon
will appear on the display, then release the buttons.
To
unlock
the keypad, press and hold the MODE button.
While holding the MODE button, press the UP and
DOWN buttons together. The LOCKED icon will disapp-
ear from the display, then release the buttons.
Press all three
buttons in the order
outlined above for
keypad lockout
MODE
Page 21
70
76
68
C
OOL
H
EAT
AUTO
Locked
