Wellea Monobloc
37
Table 4-2.4:
12/14/16kW H91
outdoor unit main PCB for refrigerant system
Label in
Figure 4-2.4
Code
Content
1
CN12
Port for low pressure switch and rapid detection
2
CN24
Port for Th temp. sensor
3
CN28
Port for pressure sensor
4
CN8
Port for TP temp. sensor
5
CN9
Port for outdoor ambient temp. sensor and condenser temp. sensor
6
CN10
Port for communication with hydro-box control board
7
CN30
Reserved
8
CN22
Port for electrical expansion value
9
CN1
Input port for live wire
10
CN2
Input port for neutral wire
11
CN11
Ground wire
12
CN4
Output port for live wire
13
CN3
Output port for neutral wire
14
CN16
Power supply port for hydro-box control board
15
CN13
Port for SV6 value
16
CN13
Port for 4-way value
17
CN14
Port for compressor electrical heating tape
19
IC13
EEPROM
20
CN26
Input port for transformer
21
CN18
Power supply port for fan
22
CN6
Port for communication with invert module PCB
23
CN19
Port for down fan
24
CN17
Port for up fan
25
CN300
Port for IC programming
26
SW3
SW4
DIP switch
27
DIS1
Digital display
28
CN51
Output port for transformer