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Figure 5-1.2: 36/42 model outdoor unit main board ports
Table 5-1.2: 36/42 model main board 1 ports
Label in
Code
Figure 5-1.2
1
CN2
2
CN1
3
CN13
4
CN11
5
CN9
6
CN12
7
CN26
CN27
8
9
CN5
10
CN17
11
CN14
Notes:
1.
The reserved ports may not be weld on the PCB.
Content
AC power input
AC power input
Four way valve
Electric hea ng belt of crankcase
T3: T3 condenser temperature;
T4: T4 outdoor ambient temperature;
T5: T4 outdoor ambient temperature;
TL: TL refrigerant cooling tube temperature;
High /Low pressure protec on switch
Chip burning port
R T
communica on port
P Q E X Y E O A communica on port
Fan connec on (fan control and power
supply to fan motor)
Compressor connec on
Port voltage
L ,VLN=220-240VAC 50/60Hz
N ,VLN=220-240VAC 50/60Hz
0V or 220-240VAC,50/60Hz
0V or 220-240VAC,50/60Hz
0V or 5V DC
0V or 5V DC
5V DC
2.5-2.7V DC
2.5-2.7V DC
Fan
control:
15V
DC;
280V-380VDC
V
= V
= V
UV
Uw
VW
0-380VAC
power
supply:
37
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