Fig. 10: the indoor PCB
Note：the above parameter is tested when there is the power in the PCB, so is the following 。
The voltage of the cross
flow fan feedback end will
be increased gradually from
0 to +2.4VDC when turning
on the indoor unit .
PTC1 resistance
value：1．02KΩ
（25℃）
The limited current resistance
value：14.8 kΩ 。
The voltage stabilizing diode
ZD1 、ZD2 reference value :
Forward resistance : 713Ω
reverse resistance: ∞
PTC1 resistance value：
1．02KΩ（25℃）
The limited current
resistance value R54 ：
0.76kΩ ， R58： 2 kΩ
The voltage stabilizing diode
ZD1 、ZD2 reference value：
Forward resistance ： 713 Ω
reverse resistance ：∞
Please test the DC motor end to N terminal voltage value:
VCC-N：+15VDC，P-N： +340VDC，Vsp -N ：0～+5VDC
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