Table 3: Button combinations
Menu or function
Applicable in mode
Button combination
Advance setting menu
OFF mode
Mode + Fan for 5 seconds
Access programming menu
OFF mode, when programming
is enabled in advanced settings
Mode + Up for 5 seconds
Pipe state (Heat/Cool) selection OFF mode and system type = 2-
pipe FC
Fan + Up for 5 seconds
Ex-Factory Reset
OFF mode
Mode + Fan + Up for 5 seconds
Toggle keypad lock or unlock
HEAT and COOL mode
Mode + Up + Down for 10
seconds
Toggle EMER HEAT
HEAT mode
Mode + Down for 5 seconds
Enable or disable unoccupied
mode manually
HEAT and COOL mode
Mode for 5 seconds
Advanced settings
You can edit user preference settings (UP), system configuration settings (SS), and installer
configuration settings (IS) through the advanced settings menu. To access the advanced settings
menu, press
Mode
to set the thermostat to OFF mode, then press and hold
Mode
and
Fan
for
5 seconds. The following tables list the adjustible settings.
User preference settings
Table 4: UP settings
Menu item Description
Setting options
Default
01
Temperature scale
F: Fahrenheit
C: Celsius
F
02
User temperature calibration
Temperature with calibration
value. Offset: +/- 5.4°F
(+/-3.0°C)
0.0°F (0.0°C)
03
Remote sensor temperature
calibration
Temperature with calibration
value. Offset: +/- 5.4°F
(+/-3.0°C)
0.0°F (0.0°C)
04
Pipe sensor temperature
calibration
Temperature with calibration
value. Offset: +/- 5.4°F
(+/-3.0°C)
0.0°F (0.0°C)
05
Backlight on duration
10 seconds
30 seconds
Always ON
10 seconds
06
Backlight brightness level
20, 40, 60, 80, 100
80
FCP Non-Programmable and Programmable Fan Coil or PTAC Thermostat Largo User Guide
8
