56
8.4.1.10 Indoor units mode conflict
Error Code
P5(old model) or - -(new model)
Malfunction conditions
The indoor units cannot work cooling mode and heating at same time.
Heating mode has a priority.
Potential causes
●
Suppose Indoor unit A working in cooling mode or fan mode, and
indoor unit B is set to heating mode, then A will change to off and
B will work in heating mode.
●
Suppose Indoor unit A working in heating mode, and indoor unit
B is set to cooling mode or fan mode, then B will change to stand
by and A will be no change.
Cooling mode
Heating Mode
Fan
Off
Cooling mode
No
Yes
No
No
Heating Mode
Yes
No
Yes
No
Fan
No
Yes
No
No
Off
No
No
No
No
No: No mode conflict;
Yes: Mode conflict
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...
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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...