EKRP1C14
Electric heater PCB kit
4P584178-2B
Installation manual
8
■
Electrical connection of humidifier (control by 1 humidifier adjustment switch)
indoor 1
CN2
SS1
X
1
X
2
X
3
X
4
YC
Y
2
Y
4
Y
3
Y
1
CN1
indoor 2
CN2
SS1
X
1
X
2
X
3
X
4
YC
Y
2
Y
4
Y
3
Y
1
CN1
indoor 3
CN2
SS1
X
1
X
2
X
3
X
4
YC
Y
2
Y
3
Y
4
Y
1
CN1
HU
HU
HU
A
YC
Y
2
Y
3
Y
4
Y
1
B
HU
RY
1
2
7
4
6
4
6
5
3
3
4
1
2
7
3
4
1
2
7
1
Main PCB
2
Optional PCB
3
Main terminal (1-3) (230 V - 50 Hz)
Field supply:
4
Humidifier HU (YC-Y2) min. 20 mA-125 V AC, max. 1 A-250 V AC
5
Relay RY (YC-Y4) max. 400 mA-250 V AC (only required in case B)
case A: (YC-Y3) min. 200 V AC, max. 2 mA
case B: Humidifier adjustment switch current >2 mA
Current of RY must be lower than current of the humidifier adjustment switch.
6
Humidifier adjustment switch
7
SS1 - ON/OFF switch: Set the switch to ON for enabling humidifier control.
4PEN584178-2B.book Page 8 Friday, May 29, 2020 2:53 PM
