Charging Refrigerant - Samsung DVM S ECO AM XMDG Series Installation Manual

Charging refrigerant

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The R410A refrigerant is blended refrigerant. Add only liquid refrigerant.
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Measure the quantity of the refrigerant according to the method to calculate total amout of additional refrigerant.
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Add quantity of the refrigerant using a scale.
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Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant.
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If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side and liquid
side service valve.
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Then, add remaining refrigerant by pressing the refrigerant charging button of the outdoor PCB.
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When using the function of the refrigerant charging in cooling mode, please use the gas side manifold gauge.
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When using the function of the refrigerant charging in heating mode, please connect manifold gauge to the charging
port for heating and use it.
R-410A
Scale
• Open the gas side and liquid side service valve completely after charging the refrigerant. (If you operate the
air conditioner with the service valve closed, the important parts may be damaged.)
Caution
• Put on safety equipment when charging refrigerant.
• Do not charge the refrigerant when you adjust or control other product such as indoor units or EEV kits.
• When the ambient temperature is low in winter time, do not heat the refrigerant container to speed up the
charging process. There is risk of explosion.
• Beware for possibility of refrigerant leakage when you connect the manifold gauge to the charging port for
heating.
• Close the valve of the refrigerant container immediately after charging the refrigerant. If not, there might be
a change in entire amount of refrigerant.
Gas side
Refrigerant
container valve
Valve(1)
Valve(2)
Manifold gage
Outdoor unit
Liquid side
Service valve
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