Samsung AM072BXV Series - Page 304

Samsung Electronics 298
Key Options
■ Connecting the external contact software to the outdoor unit's Main PBA
Outdoor unit's Main PBA
External contact input (CN803)
Receive and control necessary
contact input signals from the
outside (e.g., quiet mode)
External contact output(CN804)
Contact output of Comp/error
status to the outside is possible
How to use external contacts
External contactExternal contact
output connection(CN804)output connection(CN804)
External contactExternal contact
input connection(CN803)input connection(CN803)
①
②
③
④
+12V
Main PCB
Error_ CHECK
_OUTPUT
COMP_CHECK
_OUTPUT
①
②
S/W
S/W
S/W
Main PCB
EXTERNAL_CONTORL
-INPUT
CN86
CN85
①
②
③
④
+12V
Main PCB
Error_ CHECK
_OUTPUT
COMP_CHECK
_OUTPUT
①
②
S/W
S/W
S/W
Main PCB
EXTERNAL_CONTORL
-INPUT
CN86
CN85
Setting outdoor unit option switch and key functionSetting outdoor unit option switch and key function
Optional
item
Input
unit
SEG1 SEG2 SEG3 SEG4
Function of the
option
Remarks
Silent mode for
night-time
Main 0 7
0 0 Disabled (Factory default)
Enables the silent mode for night-time
(It operates automatically depending on the
temperature.)

module (MIM-B14) is used, entering the
silent mode is available

0 1 LEVEL 1 / Auto
0 2 LEVEL 2 / Auto
0 3 LEVEL 3 / Auto
0 4 LEVEL 1 / External contact
0 5 LEVEL 2 / External contact
0 6 LEVEL 3 / External contact
8-5 Applications (cont.)
8-5-3 Application of Auxiliary Heat Module (cont.)