Step 14 Optional : Setting The Emergency Temperature Output (Eto) Function - Samsung AC BNNDCH Series Installation Manual

Step 14 optional : Setting the Emergency Temperature Output (ETO) function

Emergency Temperature Output (ETO) function
CAUTION
• In order to deploy the ETO function, the MIM-B14, an external contact interface module, must be installed in
each indoor unit.
– The ETO is a concept of emergency operation of indoor units. If the indoor unit 1 (main indoor unit) stops
because of an error, the indoor unit 2 (sub indoor unit) starts to operate.
– Basically, the indoor unit 2 operates in the previous mode. [For the first time operation, it starts in 75 °F (24
°C) Auto mode.]
– To set more detailed operation conditions for the indoor unit 2, use the S-net Pro.
Setting up the ETO
Communication between
indoor and outdoor units
(F1 and F2)
1 Main indoor unit
– Disable the external contact control (Default).
– Connect the S-net pro2 to F1 and F2.
– Enable the ETO function and set the temperature and time.
2 Sub indoor unit
– (Re uired) Enable the external contact control (with the installation option SEG14 - Reverse Control).
– Connect the S-net pro2 to F1 and F2.
– Enable the entrance control and set the mode, set temperature, and fan speed.
(for the multi system, this function is not supported.)
Main indoor unit
Sub indoor unit
Error output port
External contact
interface module
MIM-B14
Contact input port
(1, 2)
(5, 6)
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