Norsup P31V/32 - Page 29

4. OPERATION AND USE
Main board of the input and output interface instructions below
Number
Sign
Meaning
01
P10-(U)
Compressor (output 220-230VAC)
02
P10-(V)
03
P10-(W)
04
CN18(EMV)
Water pump (output 220-230VAC)
05
CN13(HEAT)
4-way valve (output 220-230VAC)
06
CN96(H)
High speed of fan (output 220-230VAC)
07
CN96(L)
Low speed of fan (output 220-230VAC)
08
P1 (AC-L)
Live wire (input 220-230VAC)
09
P2(AC-N)
Neutral wire (input 220-230VAC)
10
CN99(PL)
Pressure sensor
11
CN29(OVT)
Water flow switch (input)
12
CN30(HP)
High pressure switch (input)
13
CN31 (LP)
Low pressure switch (input)
14
CN7(OAT)
System suction temperature (input)
15
CN21 (RES1)
Water input temperature (input)
16
CN22(RES2)
Water output temperature (input)
17
CN8(OPT)
System fan coil temperature (input)
18
CN12(PH)
Ambient temperature (input)
19
CN9(OHT)
System Exhaust temperature (input)
20
POO(GND)
Earth wire
21
P01 (GND)
Earth wire
22
P13(L)
P14(L)
Electric reactor
23
R485(B)
R485(A)
Color line controller communication
24
CN15
Electronic expansion valve