
12. CONTROL MODE
49
b. Mode conflict
The operating mode of outdoor unit is decided by the operating mode of the indoor unit firstly
booted. Indoor unit subsequently booted will firstly determine whether it’s own mode is conflict
with the outdoor mode. If so, the indoor unit will automatically shut down after three beeps; If
there is no conflict, the indoor unit will boot normally. The relationship of mode conflict is as
follows:
Driven choice
Active mode
Cooling
Dehumidification
Heating
fan
Cooling
√
√
×
√
Dehumidification
√
√
×
√
Heating
×
×
√
×
Fan
√
√
×
√
√―――Mode conflict will not happen
×―――Mode conflict will happen
7) Outdoor four-way Valve Control
Four-way valve of the outdoor machine shuts down when cooling but starts when heating.
The operation of heating defrosting refers to defrosting operation and, when the heating remote
shutdown, the four-way valve disconnects in 50s when the compressor stops working.
8) Start-up Protection
To prevent compressor from restart frequently in the condition that system pressure has not been
completely balanced, it can’t be restarted within 3 minutes.
9) Pressure Protection
Pressure switch is normally kept open. When the pressure grows too high, the pressure switch
will close and soft will enter pressure protection control. soft will automatically decrease the
frequency. If the pressure is still unable to return to normal condition after decreasing frequency,
compressor will stop and report the fault code of pressure protection.
Содержание 2AMW-42U4RRA
Страница 10: ...1 GENERAL Type Capacity Btu h View 1 to 5 indoor units 42K 6 ...
Страница 15: ...3 OUTLINES AND DIMENSIONS 21K AMW3 24U4RFA Unit mm 11 ...
Страница 16: ...3 OUTLINES AND DIMENSIONS AMW3 24U4RAA Unit mm 414 380 12 ...
Страница 17: ...3 OUTLINES AND DIMENSIONS 27K Unit mm 414 380 13 ...
Страница 18: ...3 3 O OU UT TL LI IN NE ES S A AN ND D D DI IM ME EN NS SI IO ON NS S Unit mm 42K 14 ...
Страница 29: ...7 REFRIGERANT CYCLE 7 Refrigerant cycle 12K 14K 18K 21K 24K 25 ...
Страница 32: ...8 WIRING DIAGRAM Electric wiring diagram 1982504 D 21K AMW3 24U4RFA 28 ...
Страница 33: ...8 WIRING DIAGRAM AMW3 24U4RAA Electric wiring diagram 1957327 B 29 ...
Страница 34: ...8 WIRING DIAGRAM 27K 36K 30 ...
Страница 39: ...8 WIRING DIAGRAM Maintenance board Select switch signal to mainboard Communication signal to main board 35 ...
Страница 80: ...Product improvement specifications and appearance in this manual are subject to change without prior notice ...