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ȸ»ç ³Ãµ¿½Ã½ºÅÛÀÇ ³Ã¸Å´Â R-22¸¦ »ç¿ëÇÏ°í ÀÖÀ¸¸ç, "Compressor -> Oil Separator -> R-22 Condenser -> R-22 Receiver -> Oil Returner -> Expansion Valve -> R-22 Evaporator -> Compressor" ¼øÀ¸·Î ³Ã¸Å°¡ ¼øȯÇÏ°í ÀÖ½À´Ï´Ù.
Oil Returner Shell-side Inlet¿¡´Â R-22 Condenser¿¡¼ ÀÀÃàµÈ ³Ã¸Å°¡ ÅõÀԵǰí, Tube-side Inlet¿¡´Â R-22 EvaporatorÀÇ ³Ã¸Å ¾×ÀÌ OverflowµÇ¾î ÅõÀԵǰí ÀÖ½À´Ï´Ù. Oil Returner´Â Evaporator¿¡ Á¸ÀçÇÏ´Â ¾× ³Ã¸Å Áß OilÀ» ȸ¼öÇÏ¿© ¿Àü´Þ È¿À² ÀúÇϸ¦ ¹æÁöÇϴ°Ͱú, R-22 ¿Âµµ¸¦ ³·ÃãÀ¸·Î ³Ãµ¿´É·ÂÀ» Çâ»ó½ÃÅ°±â À§ÇØ »ç¿ëÇÏ´Â°Í °°½À´Ï´Ù.
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À̸¦ °è»êÇϱâ À§ÇØ Evaporator¿¡¼ Oil Returner·Î Overflow µÇ´Â À¯·®À» ¾Ë¾Æ¾ß Çϴµ¥, À̸¦ ¾î¶»°Ô °è»êÇÏ´ÂÁö ¸ð¸£±â¿¡ Áú¹®µå¸³´Ï´Ù.
¶ÇÇÑ, Oil Returner(ȤÀº Economizer ȤÀº Flash Drum) ¼³°è½Ã ÆØâ¹ëºê Àü´Ü Target ¿Âµµ°¡ ÀÖÀ»°ÍÀε¥, È¿À²ÀûÀÎ Target ¿Âµµ´Â ¾î¶»°Ô »êÁ¤ÇÏ´ÂÁöµµ ±Ã±ÝÇÕ´Ï´Ù.
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