Robertshaw RS9110 Operation Manual page 17

Settings
This thermostat can be
configured to have 7 Day,
5+1+1 programming or be
non-programmable.
If 7 Day is selected, in Set Time
all seven days will need to be
Program
programmed individually.
If 5+1+1 programming is
Options
selected, in Set Time Monday–
Friday will be programmed
together and Saturday and
Sunday will need to be
programmed individually.
If 0d is selected, the thermostat
becomes non-programmable.
INSTALLER SETUP MENU
Display Adjustment Options
Next step
Use
to select 7d for 7 Day, 5d
for 5+1+1, or Od for
non-programmable.
Prev step
Default
and
5d
15