Samsung AM CNB C AA Series Technical Data Book page 65

13. Installation
▶ Refer to the below table for the terminal numbers for connecting external contact.
Terminal No. External contact
B1, B2
Operation check
B3, B4
Alarm
B5, B6
Water pump
B7, B8 Booster heater
B9~B11
3Way valve 1
B12~B14
3Way valve 2
B15~B17 2Way valve
B19, B20 AC 208-230, Thermostat 1 Input thermostat signal for cooling (AC 208-230 V)
B21, B22
AC 208-230, Thermostat 2 Input thermostat signal for heating (AC 208-230 V)
B23, B24
AC24, Thermostat 1
B25, B26
AC24, Thermostat 2
Indoor temperature
1, 2 (1, 2)
sensor
Temperature sensor
7, 8 (3, 4)
for water tank
13, 14 (5, 6) Solar pump
16, 17 (7, 8)
External control
19, 20 (9, 10) Smart grid
❋ ( ) : Hydro unit HT
❋ You may need to set different field specifications for the wired remote controller depending on the function .
Function
Output operation status
Output alarm status
Output operation signal for a water pump
Output operation signal for booster heater of DHW tank
Output 3 way valve direction signal for indoor heating /
DHW selection
Output for solar pump interconnection/defrost
signal interconnection
Output 2 way valve switching signal for blocking cold water
fall in floor cooling
Input thermostat signal for cooling (AC 24V)
Input thermostat signal for heating (AC 24V)
Connect indoor temperature sensor
(Connection status can be checked on the wired remote
controller .)
Connect temperature sensor of DHW tank
(Connection status can be checked on the wired remote
controller .)
Input contact signal for solar heat pump operation
Input external contact control signal
(Refer to seg 14 of 02 series remote controller installation option .)
Input contact signal for smart grid
Remarks
Optional
Optional
Mandatory
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
Optional
hot water
supply operation
Optional
Optional
Optional