Samsung AVMKH020EA4 Service Manual

Also see for AVMBH020EA4: Service manual Owner's instructions Owner's instructions

Contents

Reference SheetSamsung Electronics13-114. The outdoor unit starts a tracking to check the connected indoor unit and option at power ON. The left of outdoor unit PCB check display part checks theresponded indoor unit by communication to 0~F address,and displays the responded address to the right of PCBcheck display part. Check if the indoor unit address at installation and the indoorunit address responded is same. Check if the number of indoor unit installed and the numberof outdoor unit PCB setup is same. If the number of indoor unit set on outdoor unit PCB andresponded by communication is same after tracking, goahead the next step. If CH is displayed on the part of outdoor unit PCB checkdisplay after completion of tracking, the compressor is notpreheated. Turn the power On to heat the compressor,and wait until the CH is disappeared. The communication between the indoor unit and the outdoor unit is performed if the compressor is preheated. And theconnected indoor unit address is displayed at the right of the outdoor unit PCB check display part.5. Check the system pressure by use of manifold gauge. Connect the manifold gauge with the high/low pressureservice valve of outdoor unit. Check if the high/low pressure service valves are all opened. Operate the system by pressing the refrigerant charge key. Check the high/low pressure through the manifold gauge. Refer to the pressure table classified by the outdoortemperature and the length of drain pipe provided separatelyfor a proper pressure. Stop the system by pressing the refrigerant charge key.Check if the indoor unit address is responded as a same. High pressure sideMani hold gaugeLow pressuresideLeft RightPCB display part• E2 is displayed on the part of outdoor unit PCB check display if the tracking is failed.• Perform the re-tracking by pressing KEY 3 after checking address of indoor and outdoor unit.• Check the input value after 30 minutes after running the compressor because the high/low is changedcontinually at the initial operation.• Don't perform the system operation more than 1 hour to check system pressure.