Midea ATOM MDV-V56WDHN1(AtB)

AtomBSeriesVRF50/60Hz   
16  
MideaAtomBSeriesServiceManual
1 GeneralControlSchemeFlowchart
Sections3-2to3-7onthefollowingpagesdetailwheneachofthecontrolsintheflowchartbelowisactivated. 
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
Legend
Numbersinthetopright-hand
cornersofboxesindicatethe
relevantsectionoftextonthe
followingpages.
Conditionsmet
foroilreturn
Conditionsmet
fordefrosting
Specialcontrol
 Oilreturnoperation
 Defrostingoperation
6
Stopoperation
 Abnormalshutdown
 Systemstop
2
Startupcontrol
 Compressorstartupdelaycontrol 
 Startupcontrolforcoolingoperation
 Startupcontrolforheatingoperation
3
Thermoon
Normaloperationcontrol
 Componentcontrolduringnormaloperation
 Compressoroutputcontrol
 Compressorstepcontrol
 Electronicexpansionvalvecontrol
4
Protectioncontrol
 Highpressureprotectioncontrol
 Lowpressureprotectioncontrol
 Dischargetemperatureprotectioncontrol
 Compressorprotectioncontrol
 Disableheatingcontrol
5