Samsung AM0 SERIES Installation Manual page 43

Setting an indoor unit address and installation option
SEG 3, 4, 5, 6, 8, 9 additional information
When the SEG 3 is set as "1" and follow Auto Change Over for HR only operation, it will operate as follows.
Temp.
Ts
Set temp. for Auto
Cooling/Heating mode can be changed when Thermo Off status is maintained during the time with SEG9.
AM0**JNZDCH/AA IM ENG_V1.5_07082015
Standard temp. for
Heating  Cooling
b
Standard temp. for Cooling
mode
d
Standard temp.
for Cooling 
Heating
c
a
Standard temp. for
Heating
42
C
B
A
D
A : Set with SEG4
B : Set with SEG5
C : Set with SEG6
D : Set with SEG8