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Fig. 3 the indoor and outdoor connecting
cable's technics after 2007
The voltage stabilizing diode
ZD1 、ZD2 reference value：
Forward
resisitance
reverse resistance:∞
The limited current resistance
value：14.8 kΩ
Note：there are two kinds of connecting technics for the indoor and
outdoor connecting cable， Fig 2 shoed the technics before 2007， and
Fig 3 showed the technics after 2007
:713 Ω
47
Fig. 2 the indoor and outdoor connecting
cable's technics before 2007
PTC1 resistance value：
1．02KΩ（25℃）
The voltage of the cross flow
fan feedback end will be
increased gradually from 0 to
+2.4VDC when turning on
the indoor unit
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