Samsung AM CNB C AA Series Technical Data Book page 63

13. Installation
Connecting external contact
External contact connection diagram
Ⓐ
Main power
Ⓑ
Operation check
Ⓒ
Alarm
Ⓓ
Water pump
Ⓔ
Booster heater
Ⓕ
3Way valve 1
1
Ⓙ
Indoor temperature
sensor
Ⓙ
Indoor temperature
sensor
L N
L
N
L N
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Ⓚ Ⓛ
Temperature sensor
for water tank
<DVM Hydro unit>
1 2 3 4 5 6 7 8 9 10
Ⓛ
Solar pump
Ⓚ
Temperature sensor
for water tank
<DVM Hydro unit HT>
V2
V1
Ⓠ
Defrost
Connected as factory default
AC 24 V Thermostat
208-230 V Thermostat
3Way valve 2
Ⓝ
Solar pump Smart grid
Ⓜ
External control
Ⓜ
Ⓝ
External control
Wired remote controller
Outdoor unit
(communication cable)
Water IN/OUT (Hydro unit HT)
Water IN/OUT (Hydro unit)
EVA IN/OUT (Hydro unit /
Hydro unit HT)
Flow switch
Ⓘ
Ⓗ
2Way valve
Ⓖ
Smart grid