Outdoor Unit
Home key (S004)
8. Outdoor control board switch/LED layout diagram
Forced/warning (D052)
B - 28
Board power source LED (D003, green)
Terminating resistance
on/off switch (S003)
All stop switch (S001)
Indoor/outdoor
communication monitor (D043)
Fuel solenoid valve forced
off switch (S002)
7 segment LED
(ICO21, ICO22)
Set key (S005)
Down key (S006)
Up key (S007)
Level LED (D053)