Airwell WELLEA AW-WHPMA04-H91 Installationsanleitung Seite 31

2) PCB B, Main control board of heat pump system
4
CN3
3
CN27
CN22
2
1
CN28
CN18
CN7 CN5 CN6 CN16 CN19
34 33 32 31
Coding Assembly unit
1 Output port L to PCB A(CN28)
2 Reserved(CN22)
3 Output port N to PCB A(CN27)
4 Reserved(CN3)
5 Port for ground wire(PE2)
6
Digital display(DSP1)
7
Port for communication with PCB A(CN17)
8 Port for ground wire(PE1)
9 Reserved(CN26)
10 Input port for neutral wire(CN10)
Input port for live wire(CN11)
11
Port for outdoor ambient temp. sensor and
12
condenser temp.sensor(CN9)
Input port for +12V/9V(CN24)
13
Port for sunction temp.sensor(CN1)
14
15
Port for discharge temp.sensor(CN8)
Port for pressure sensor(CN4)
16
Port for high pressure switch (CN13)
17
5 6
PE2
CN55
CN21
CN33
CN2 CN30
30 29 28 27 26 25 24
Coding
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
26
7 8 9 10
PE1
CN11
CN17
CN26
CN9
CN4
CN36 CN37 CN38 CN20
23 22 21 20
Assembly unit
Port for low pressure switch (CN14)
Port for communication with hydro-box control board
(CN29)
Reserved(CN20)
Reserved(CN38)
Reserved(CN37)
Reserved(CN36)
Port for communication(reserved,CN30)
Port for communication(reserved,CN2)
Reserved(CN55)
Port for electrical expansion value(CN33)
Reserved(CN21)
Reserved(CN19)
Port for chassis electrical heating tape(CN16)
(optional)
Port for 4-way value(CN6)
Port for SV6 value(CN5)
Port for compressor eletric heating tape 1(CN7)
Port for compressor eletric heating tape 2(CN18)
CN10
11
12
CN24 13
CN1 14
CN8 15
16
17
CN13
18
CN14
CN29 19