• With the valve on the outdoor unit closed, fill the refrigerant through the service port on the liquid side.
• If the specified quantity of refrigerant cannot be filled, open the valves of the external unit completely on the liquid, gas and balance sides; perform the refrigeration operation so that the valve on the gas side closes a little, and then fill the refrigerant through the service port on the gas side. Obstruct
slightly the refrigerant operating the pump valve, in order to regulate the refrigerant so that it is gasified when it is absorbed by the system.
• When the refrigerant leaks, recover the refrigerant in the system and refill with new refrigerant until the normal amount is reached.
