97
Position
Resistance Value
YDK70-
6FB
YDK180-8GB
YSK27-4G
YSK68-4B
YDK45-6B
YSK25-6L
YDK53-
6FB(B)
Black -
Red
56Ω±8%
(20
℃
)
24.5Ω±8%
(20
℃
)
317Ω±8%
(20
℃
)
145Ω±8%
(20
℃
)
345Ω±8%
(20
℃
)
627Ω±8%
(20
℃
)
88.5Ω±8%
(20
℃
)
Red -
Yellow
76Ω±8%
(20
℃
)
19Ω±8%
(20
℃
)
252Ω±8%
(20
℃
)
88Ω±8%
(20
℃
)
150Ω±8%
(20
℃
)
374.3Ω±8%
(20
℃
)
138Ω±8%
(20
℃
)
Yellow -
Blue
76Ω±8%
(20
℃
)
19Ω±8%
(20
℃
)
252Ω±8%
(20
℃
)
88Ω±8%
(20
℃
)
150Ω±8%
(20
℃
)
374.3Ω±8%
(20
℃
)
138Ω±8%
(20
℃
)
5.4-way valve
1. Power on, use a digital tester to measure the voltage, when the unit operates in cooling, it is 0V. When
the unit operates in heating, it is about 230VAC.
If the value of the voltage is not in the range, the PCB must have problems and need to be replaced.
2 Turn off the power, use a digital tester to measure the resistance. The value should be 1.8~2.5 KΩ.
Содержание MCH2U-18PHH2
Страница 3: ...3 MCH4U 36PHH2 WD30 metal plate 118 MCH5U 48PHH2 WE30 metal plate 125...
Страница 23: ...23 7 Wiring Diagrams 7 1 Wiring diagram of 1 drive 2 outdoor MCH2U 18PHH2...
Страница 24: ...24 7 2 Wiring diagram of 1 drive 3 outdoor MCH3U 27PHH2...
Страница 25: ...25 7 3 Wiring diagram of 1 drive 4 outdoor MCH4U 36PHH2...
Страница 26: ...26 7 4 Wiring diagram of MCH5U 48PHH2...
Страница 31: ...31 PCB board of MCH5U 48PHH2...
Страница 32: ...32 IPM board of MCH5U 48PHH2...
Страница 44: ...44...
Страница 46: ...46 Operating Standby Pic 2 IPM for 2 zone 3 zone...
Страница 47: ...47 PIC3 Main board LED when power on and unit standby Pic 2 IPM for5 zone Power Standby Operating...
Страница 54: ...54 8 4 1 7 Over voltage or under voltage protection diagnosis and solution...
Страница 59: ...59...
Страница 61: ...61 Operating Standby Pic 2 IPM board for 2 zone 3 zone...
Страница 62: ...62 PIC3 Main board LED when power on and unit standby Pic 2 IPM for5 zone Power Standby Operating...
Страница 64: ...64...
Страница 68: ...68 IPM board for 2 zone 3 zone...
Страница 70: ...70 IPM board for 4 zone...
Страница 73: ...73 Two ports of the inductance Inductance...
Страница 76: ...76 Vs Vcc Vsp FG...
Страница 78: ...78...
Страница 79: ...79...
Страница 81: ...81...
Страница 82: ...82...
Страница 84: ...84...
Страница 85: ...85...
Страница 87: ...87...
Страница 98: ...98 6 EXV check Disconnect the connectors...
Страница 99: ...99 Resistance to EXV coil Color of lead wire Normal Value Red Blue About 50 Red Yellow Brown Orange Brown White...
Страница 100: ...100 Red Blue Red Yellow...
Страница 101: ...101 Brown Orange...
Страница 102: ...102 Brown White...
Страница 112: ...112 Screws of front panel Screws of right rear panel Screws of front panel...
Страница 120: ...120 Screws of front panel Screws of right rear panel Screws of front panel...