System configuration settings
Table 5: SS settings
Menu item Description Setting options Default
21 System type 2FCU: 2-pipe fan coil unit
4FCU: 4-pipe fan coil unit
HP: Heat pump
H-C: Conventional (electric
furnace)
4FCU
22 2-pipe FCU with aux heat
available
(available only if system type =
2FCU)
Yes
No
No
2FCU without aux heat:
04: Heat and cool without auto
04
2FCU with aux heat:
03: Heat and cool with auto
04: Heat and cool without auto
03
23 Available modes
4FCU, HP, or H-C:
01: Heat only
02: Cool only
03: Heat and cool with auto
04 : Heat and cool without auto
03
24 HP valve type
(unavailable if system type =
HP)
B: B Valve
O: O Valve
B
25 Remote sensor location 0: In room
1: In duct
0
26 Remote sensor type 0: Type Ⅱ
1: Type Ⅲ
0
27 Pipe sensor type 0: Type Ⅱ
1: Type Ⅲ
0
28 Pipe state – calendar ON
OFF
OFF
FCP Non-Programmable and Programmable Fan Coil or PTAC Thermostat Largo User Guide10