PHNIX PASRW015-U - Page 31

6.1 Connection of PCB illustration
6. APPENDIX
28
HEAT
GND GND 12V GND GND GND GND 12V
CHILLER 300
PUMP
FAN
VAL2
VAL1
COMP2
COMP1
AC-L
AC-N AC-N AC-N
KYOUT MDOUT NET KYIN MDIN WATER FROST SYS
SENSOR ROOMT SENSOR PIPE2 SENSOR PIPE1 SENSOR OUTWT
SENSOR
INWT
Connections explanation：
1
2
3
4
5
6
7
8
9
10
11
HEAT
Auxiliary electrical heating（220VAC）
PUMP
Water pump（220VAC）
FAN
Fan motor（220VAC）
VAL2
Solenoid valve （220VAC）
COMP2
Fire wire
KYOUT GND
On/Off switch
NET GND 12V
Wire controller
KYIN
On/Off Switch(input)
Model(input)
WATER GND
Flow switch (input)( normal close)
FROST GND
Defrost signal
SYS GND 12V
System protection(normal close)
ROOMT
Ambient temp.(input)
PIPE2
Temp. Of fan coil2( input)
12
13
14
15
16
17
18
19
20
21
22
VAL1
Compressor of system2（220VAC）
COMP1
AC-L
AC-N
MDOUT GND
Mode
MDIN
PIPE1
OUTWT
Water out temp.(output)
INTWT
Water in temp.(output)
No.
symbol
meaning
4way valve of system1（220VAC）
Compressor of system1（220VAC）
Temp. Of fan coil11( input)
Neutral Wire