Distinction PASRW030-BP2 - 6.3 Circuit diagram of the unit

22
6. APPENDIX
Notes:
When the unit uses EC fan, PWM-IN port is used for feedback input of EC fan by default, and AI/
DI11 port is used as master-slave switch by default; when the unit uses non-EC fan, PWM-IN port
is used as master-slave switch by default, and AI/DI11 port is used as anti-freezing protection
switch by default.
NUMBER SIGN MEANING
24 +5V +5V (output)
25 +12V +12V (output)
26
GND
485_B1
485_A1
12V
Frequency conversion board communications
27
28
29
30
GND
485_B2
485_A2
12V
LED controller communication
31
32
33
34 CN9 Electronic expansive valve
35
GND
485_B3
485_A3
12V
The port for centralized control
36
37
38