Samsung AM TXMDEH Series Installation Manual

49How to put the refrigerant into the refrigerant container before pump down operation❋ When the amount of refrigerant charged in the system exceeds maximum receptive capacity, collect the refrigerant intothe refrigerant container at first and then perform the pump down.f Prepare the exclusive refrigerant container that can be recharged, scale, and manifold gage that can be recharged.f Check the current amount of refrigerant within the system.f After connecting the refrigerant container to an outdoor unit, operate 50 % of all indoor units as cooling mode.f Check the pressure of high pressure side for manifold gage after 10 minutes from cooling operation. When the pressureof high pressure side is above 30 kg/cm²,g decrease the number of operating indoor unit and make the pressure below30 kg/cm²,g.f After checking that the pressure of high pressure side went below 30 kg/cm²,g, open the manifold gage side valve(2) thatis connected to the liquid pipe and refrigerant container valve. Then run the refrigerant from liquid pipe to refrigerantcontainer.f Check whether the proper amount of refrigerant are put into the container using a scale, turn off the valve and removethe manifold gage.f The amount of refrigerant that can be put into the refrigerant container should be about 50 % of all refrigerant of thewhole system.f Do not collect too much refrigerant in one refrigerant container.Gas sideScaleLiquid sideManifold gage Service valveOutdoor unitR-410A Refrigerantcontainer valveValve(2)Valve(1)

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