Samsung MH026FNCA Service Manual

Also see for MH026FECA: Service manual

Samsung Electronics9-2To complete the installation, perform the following checks and tests to ensure that the air conditioner is operatingcorrectly.1. Review all the following elements in the installation:1. • Installation site strength1. • Piping connection tightness not to leak any gas1. • Connection wiring1. • Heat-resistant insulation of the piping1. • Drainage1. • Earthing wire connection1. • Setting number of the indoor unit installed (Outdoor unit SW)1. • Setting SW02 for addressing mode (AUTO or MANUAL)1. • Address number on each indoor unit (Manual addressing mode)1. • Correct operation for pipe checking connection (follow the step below)1. • If the auto addressing, refer to next page.1. • If the manual addressing, please do cool mode try-run or heat mode try-run.(refer to below)2. Settings of PCB Display of the Outdoor unit2. -K1 :pipe checking operation button -K2 :Function button2. -K3 :Reset button -K4 :View mode change buttonK4 View mode Display changes9-2 Checking and Testing operationsK 1K 2 K 3DIS01SW02 SW01K 4DIS02Outdoor PCB DisplayIndoor unitaddressView data display0123456789101112131415Discharge temperatureOLP temperatureCondenser temperatureOutdoor temperatureFirst currentTarget Discharge temperatureTotal capacity of the indoor unitsSafety controlPushKey K1 K2 K3 K41Pipe CheckingOperation(Display: )Reset View modechange2 -3 -4 -Heat Mode Tryrun(Display: )Refrigerantcharging(Display: )Cool Mode Tryrun(Display: )Pump down(Display: )SwitchDisplay Explanation Display ExplanationPush PushPresent Compressor FrequencyTarget Compressor FrequencyOrder Compressor FrequencyEEV0 current stepEEV1 current stepEEV2 current stepEEV3 current stepFan RPM (H:high,L:low,Blank:off )• The EEV 2 and EEV 3 of MH050FXCA2A model is always displayed as blank.