Samsung MCM-A300N - Page 141

141
E
XTERNAL
C
ONTROL
S
YSTEM
f Operation input
It is possible to set the method of indoor unit control by external contact signal.
t Method 1. Turn On/Off the indoor units by external contact signal
t Method 2. Set standby/Turn Off the indoor unit by external contact signal
t Method 3. Return to the last status / Turn Off the indoor unit by external contract signal
f Operation output
t Thermo off : Status where refrigerant is not flowing in either cooling/heating operation because desired temperature has been reached.
Method 1 Method 2 Method 3
Indoor unit INSTALL option
setting
(Refer to inidoor unit
installation manual)
SEG 14 = 1 SEG 14 = 2 SEG 14 = 3
Indoor unit operation by
external contact
Short  Indoor unit On
Open  Indoor unit Off
Short  Standby
Open  Indoor unit Off
Short  Return to the last
status of indoor unit
Open  Indoor unit Off
Remote controller use
Short  Available
Open  Available
Short  Available
Open  Unavailable
Short  Available
Open  Unavailable
DVM S series indoor unit
Output signal
4&(
SEG 15 = 1
Thermo On/Off
Operation On/Off
Output signal delay time None
Error signal
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