To recharge with a measured amount of the oil. compressor must be removed from the system. and the oil must be drained out from the suction line stub by tilting the compressor. The exact amount of oil must be clear before recharging is stated. Check the instruction manual for correct charge.The avoid too much mixture of refrigerant in the oil and to avoid emission of refrigerant, an oil heater could be installed. After the compressor is reinstalled the system must then be evacuated by means of an access valve of the process tube before recharging with refrigerant and operating. Never use oil from bottles or drums which have been left open. (moisture)
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