White Rodgers 1F90W-71 Operation Manual page 10

The Thermostat Buttons
7
Sets the system mode (HEATing, OFF,
COOLing, or AUTOmatic changeover).
8
Selects fan operation (see #6, above). This
button is also used to program the fan to run
continuously during a program period.
9
Runs display forward or backward through
time, day, or anticipation settings during
programming.
10
Used with the
set current time and day of the week.
11
Used during programming to set the day of
the week to be programmed. Also used in
conjunction with the
anticipation setting mode.
10
TIME TIME
and buttons to
FWD BACK
SET
button to enter
CLOCK
12
Used to initiate or review thermostat pro-
gramming.
13
Used to start program operation after pro-
gramming. Also used to return thermostat
to program operation after being in HOLD
mode.
14
Used to manually override programming to
hold at a selected temperature (when HOLD
is displayed).
15
Used to advance thermostat program to the
next program period (for example, from the
MOR program to the DAY program).
16 (Red arrow) Raises temperature setting
(99 F or 37 C maximum).
17
(Blue arrow) Lowers temperature setting
(40 F or 4 C minimum).
18
The red indicator light glows whenever heat-
ing, cooling, or fan are in operation.