Robertshaw RS9110 Operation Manual page 16

INSTALLER SETUP MENU
Settings
Select F for Fahrenheit
For C
temperature display or select
C for Celsius display.
12 or 24
Select a 12 or 24 hour
Hour Clock
clock setting.
Fan
Select GAS or ELEC depending
Operation
on the type of furnace.
14
Display Adjustment Options Default
Next step
F for Fahrenheit
C for Celsius
Prev step
Next step
Use
to select 12 or 24
hour clock.
Prev step
Next step
GAS - GS
or
ELEC-EL
Prev step
F
and
12
GAS