Samsung AC BNADCH Series Installation Manual page 16

Indoor Unit Installation
[Master]
ETO operation specifications
1 Main indoor unit
‐ Based on the external contact control settings, the main indoor unit decides whether to generate output when an
error (indoor unit stop) occurs.
‐ Based on the ETO settings, the main indoor unit decides whether to generate output according to the temperature
and time conditions.
2 Sub indoor unit
‐ Based on the entrance control settings, the sub indoor unit decides the mode, set temperature, and fan speed when
contact inputs are given.
Main indoor unit
Enable of entrance
Sub indoor unit
16 English
Enable of external
Enable of ETO
contact
X
X
O
O
Enable of external
control contact
X
X
O
[Slave]
Error port output
X
O Output due to an error
Output by ETO entrance conditions
X
(temperature / time / error occurrence)
Output by ETO entrance conditions
(temperature / time / error occurrence)
O
※ Ready to control the main contact input
Operation when outputting Main
X
O On with the previous operation conditions
O On with the entrance control enabled
N/A
N/A