Samsung RHF025EE Series Installation Manual page 13

Main PCB
①
No. Classification
1 DISPLAY
2 CO sensor
2
3 Temperature sensor
4 Damper switch
5 External control
6 ERV wired remote control
7 Communication
8 Monitor the operation status
9 Damper motor
10 External device
11 Power supply
② ③ ④ ⑤
Explanation
DISPLAY
CO sensor connection port
2
Indoor/outdoor temperature sensor connection port
Signal input port of damper switch
On/Off control by external contact signal
V1, V2 (DC 12V power supply),
F3,F4 (ERV wired remote control communication)
F1, F2 (Communication between the ventilators or transmitter)
Report operation errors
Damper control port for changing operation modes
External humidifier/ External heater/ External damper
220V/50Hz(L/N)
⑥
⑦
⑧
⑨
⑩
⑪
Specifications
3PIN (CN43)
4PIN (CN41)
3PIN (CN51)
2PIN (EXT1) / 2PIN (EXT2) /
2PIN (EXT3)
4PIN (TB±COM)
2PIN (TB±COM)
4PIN (CN77)
2PIN (CN72)
4PIN (TB±LOAD)
2PIN (TB±LOAD)
13
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