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2.2 Dip switch setting
Outdoor main PCB 0151800075B dip switch setting SW5
Small service PCB:0151800076A dip switch setting SW1
SW7: Except the SW7-3, all the other dip switch setting is OFF
SW7-3 Description
ON Mute available
OFF Mute unavailable
SW1-1 SW1-2 SW1-3 SW1-4 Description
OFF OFF OFF OFF State when out of factory
ON OFF OFF OFF
Compulsory heating: 50Hz, outdoor motor 5-class, standard open angle 200,
the others are normal
OFF ON OFF OFF
Compulsory cooling: 60Hz, outdoor motor 7-class, standard open angle 200,
the others are normal
OFF OFF ON OFF Rated operation
OFF OFF OFF ON Time defrost valid
ON ON ON ON Detection for wrong wiring
SW5-1 SW5-2 SW5-3 SW5-4 SW5-5 SW5-6 SW5-7 SW5-8 Description
OFF OFF --- --- --- --- --- --- Heat pump(default)
ON OFF --- --- --- --- --- --- Cooling only
ON ON --- --- --- --- --- --- Heating only
--- --- OFF --- --- --- --- --- Adjust by machine types
--- --- ON --- --- --- --- --- Max Running Current:15A(default)
--- --- --- OFF OFF ON --- --- 3U52S2SG1FA
--- --- --- OFF ON OFF --- --- 3U68S2SG1FA
--- --- --- OFF ON ON --- --- 4U70S2SH1FA
--- --- --- ON OFF ON --- --- 4U85S2SH1FA
--- --- --- --- --- --- OFF --- Temperature correction invalid(default)
--- --- --- --- --- --- ON --- Temperature correction valid
--- --- --- --- --- --- --- OFF Defrosting temperature:8°C(default)
--- --- --- --- --- --- --- ON Defrosting temperature:6°C
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