E.P.R(Evaporator Pressure Regulting
Valve
:Áõ¹ß¾Ð·ÂÁ¶Àý¹ëºê )
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Àû¿ë
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Single Evaporator System¿¡¼ Áõ¹ß¿Âµµ°¡
¾î¶² ƯÁ¤¿Âµµ ¾Æ·¡·Î ¶³¾îÁö´Â °ÍÀ» ¹æÁöÇÒ ÇÊ¿ä°¡ ÀÖÀ»¶§ , Mult-evaporator
System¿¡¼´Â Áõ¹ß±â¸¶´Ù °¢°¢ ´Ù¸¥ ¿Âµµ¸¦ À¯Áö½Ãų ÇÊ¿ä°¡ ÀÖÀ»´ë
À¯¿ëÇÏ°Ô »ç¿ëÇÒ ¼ö ÀÖ´Ù
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Á¾·ù
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Direct Action
Bellows Type
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[±×¸² 1] ¿ÜÇü
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[±×¸² 2] ³»ºÎ±¸Á¶
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E.P.RÀº ÀÔ±¸¾Ð·Â(Áõ¹ß¾Ð·Â)ÀÌ
¼¼Æþзº¸´Ù ³·À¸¸é ¹ëºê´Â ´ÝÇôÀÖ°Ô µÈ´Ù. ¹Ý´ë·Î Áõ¹ß¾Ð·ÂÀÌ ¼¼Æþзº¸´Ù
³ôÀ¸¸é ³ôÀ»¼ö·Ï EPRÀº ´õ ¸¹ÀÌ ¿¸°´Ù. µû¶ó¼ Áõ¹ß¾Ð·Â°ú ¼¼ÆÃÀÇ Â÷(ó¬)°¡
Range 0/50 psigÀÇ ¹ëºê´Â 8psi(0.55 bar), Range 30/110 psigÀÇ ¹ëºê´Â
12psi(0.83 bar)À϶§ ±× ¹ëºêÀÇ Ç¥ÁØ¿ë·®À¸·Î ÇÏ°í ÀÖ´Ù. ¾Ð·ÂÂ÷ÀÌ°¡
À̺¸´Ù ÀûÀ¸¸é ¹ëºêÀÇ ¿ë·®Àº Ç¥ÀÇ ¿ë·®º¸´Ù ÁÙ¾îµé°í ,Å©¸é Áõ°¡ÇÑ´Ù.
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Hi-Pressure Pilot Action Type
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[±×¸² 3] ¿ÜÇü
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Solenoid Coil DE-ENERGIZED
valve CROSED
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Solenoid Coil DE-ENERGIZED
valve MODULATING
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[±×¸² 4] ÀÛµ¿ ¼³¸í
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a.Á¤±³ÇÑ(Accurate) Control°ú ÈíÀÔ°ü¿¡¼
Pressure Drop ÃÖ¼ÒÈ°¡ °¥¸ÁµÇ´Â ÀåÄ¡¿¡ ÀûÇÕÇÏ´Ù.
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b. ÈíÀÔ°ü¿¡¼ ¾Ð·Â¼Õ½ÇÀº System Capacity¸¦
°¨¼Ò½ÃÅ°°í ¿îÀü½Ã°£ÀÌ ±æ¾îÁö´Â ¿øÀÎÀÌ µÈ´Ù.( [Ç¥ 1] ÂüÁ¶)
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c. Energy Àý¾à¿¡ ¸ñÀûÀ» µÎ°í °³¹ßµÈ ÀÌ ¹ëºê´Â
1psi ¹Ì¸¸ÀÇ Pressure Drop À¸·Î ÀÛµ¿µÇ´Â wjseoalansdÀÇ ¼º´ÉÀ» º¸ÀåÇÑ´Ù.
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d. °í¾ÐÀ» Pilot Control ¾Ð·ÂÀ¸·Î »ç¿ëÇÑ´Ù.
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e. Áõ¹ß¾Ð·Â¨è¿Í ½ºÇÁ¸µ¾Ð·Â¨éÀÇ ÇÕÀÌ
Setting ¾Ð·Â¨ç ¹Ì¸¸À¸·Î ¶³¾îÁö¸é Pilot ¹ëºê´Â ¿¸®°í °í¾ÐÀÌ ¨ê±¸¿ªÀ¸·Î
µé¾î¿Í GateÀ» ´Ý´Â ÂÊÀ¸·Î À̵¿½ÃŲ´Ù.
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f. ¹Ý´ë·Î Áõ¹ß¾Ð·Â¨ì=¨èÀÌ »ó½ÂÇÏ¿© ¨è¿Í
¨éÀÇ ÇÕÀÌ ¨çº¸´Ù Ä¿Áö¸é Pilot ¹ëºê´Â ´ÝÈ÷°í °í¾ÐÀÌ ¨ê±¸¿ªÀ¸·Î µé¾î¿Ã
¼ö ¾ø°ÔµÇ¾î ¹ëºêGate´Â ¿¸®´Â ÂÊÀ¸·Î À̵¿ÇÏ°Ô µÈ´Ù.
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ÈíÀÔ°ü¿¡¼ ¾Ð·Â¼Õ½Ç(psi)
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Pressure DropÀ¸·Î ÀÎÇÑ ¾ÐÃà±â ¿ë·®¼Õ½Ç(%)
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R-22
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R-22
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R-502
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ET : -12 ¡É
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ET : -32 ¡É
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ET : -32 ¡É
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0
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-
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-
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-
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1
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2.2
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5.6
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6.1
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2
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4.4
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12.7
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10.4
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3
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7.1
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18.1
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15.3
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4
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9.5
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24.2
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19.5
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[Ç¥ 1] ÈíÀÔ ¾Ð·Â ¼Õ½Ç
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Low-Pressure Pilot Action Type
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´Ù±â´É , ´Ù¸ñÀû¿ëÀ¸·Î »ç¿ëÇÒ ¼ö ÀÖ´Ù.
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Manual(¶Ç´Â Electric) Open , Solenoid¿¡
ÀÇÇØ Valve Crose(Á¦»ó Cycle) , 2°¡Áö Áõ¹ß¿Âµµ (Setting
¿Âµµ¿Í Common ¿Âµµ) ·Î ¿îÀüÀÌ °¡´ÉÇÏ°í Service°¡ ¿ëÀÌÇÏ´Ù.
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¹ëºê ÀÔ±¸¾Ð·ÂÀ» Pilot Control ¾Ð·ÂÀ¸·Î
»ç¿ëÇÑ´Ù. ÀÛµ¿¿ø¸®´Â Hi-Pressure Pilot
Action Type°ú À¯»çÇÏ´Ù.
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[±×¸² 5] ¿ÜÇü
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¿ë·®Ç¥ »ç¿ë¹ý(Direct Actiong Bellows Type)
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ÀÛµ¿¹æ¹ý
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MODEL
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Á¶Àý¹üÀ§
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¿ë·®(*)
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Ç¥ÁØ°ü°æ(inch)
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°ü°æ(Option)
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Direct Act BellowÇü
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ORIT-6
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0/50 ¶Ç´Â 30/100psig
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0.86
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5/8" & 7/8"
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1/2" & 1 1/8"
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ORIT-10
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2.08
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1 1/8" & 1
3/8"
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7/8"
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°í¾Ð»ç¿ë Pilot Act
Çü
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(S)ORIT-12
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0/75psig
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3.0
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1 1/8"
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-
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(S)ORIT-15
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4.50
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1 3/8"
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-
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(S)ORIT-20
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10.8
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1 5/8"
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-
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Àú¾Ð»ç¿ë Pilot Act
Çü
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(S)ORIT-PI-2
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0/100psig
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2.02
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1 1/8"
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7/8" , 1 3/8"
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(S)ORIT-PI-3
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4.02
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1 3/8"
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1 1/8" & 1
5/8"
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(S)ORIT-PI-4
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5.13
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1 5/8"
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1 1/8" & 1
5/8"
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ÁÖ) (*)
»ó±âÇ¥ÀÇ ¿ë·®Àº R-22, ET : 0 (-18 ) , EPR¿¡¼ Pressure Drop 2psi
±âÁØÇÑ °ªÀÌ´Ù.
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±âŸ
Á¶°Ç¿¡¼ °¢ E.P.RÀÇ ¿ë·®Àº Capacity Table ÂüÁ¶
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Single Evaporator System ÀÇ
°æ¿ì
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1) Ç¥ -1À» ÂüÁ¶ÇÏ¿© E.P.R¿¡¼ Çã¿ëÇÒ Pressure
Drop(bar)À» °áÁ¤ÇÑ´Ù.
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2) Çã¿ëÇÒ ¼ö ÀÖ´Â ÃÖÀúÁõ¹ß¿Âµµ(¾Ð·Â)¸¦ °áÁ¤ÇÑ´Ù.
ÀÌ°ÍÀÌ E.P.RÀÇ Setting ¾Ð·ÂÀÌ µÈ´Ù.
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3) 1)°ú 2)ÀÇ ±³Â÷Á¡ÀÌ ÁÖ¾îÁø Á¶°Ç¿¡¼ ±×
¹ëºêÀÇ ¿ë·®ÀÌ´Ù.
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------- ¿¹ -------
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-15 (1.95bar)¿¡ Setting µÈ Range 0/60 ¹ëºê(E.P.R)´Â
Áõ¹ß¾Ð·ÂÀÌ 1.95barÀÌÇÏ·Î ¶³¾îÁö¸é E.P.RÀº ´ÝÈ÷°Ô µÇ°í(closed) ,
Áõ¹ß¾Ð·ÂÀÌ 1.95barÀÌ»óÀ¸·Î »ó½ÂÇϸé Á¡Â÷ ¿¸®±â ½ÃÀÛÇÏ¿© Setting
¾Ð·Âº¸´Ù 0.55bar(8psig) ´õ ³ôÀº 2.5bar°¡ µÇ¸é ¿ÏÀüÈ÷ ¿·Á¼ Ç¥ÀÇ
¿ë·®À» Åë°ú½ÃŲ´Ù.
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¹ëºê¿ë·®Àº ¾Ð·Âº¯È¿¡ ºñ·ÊÇÏ¿© Áõ°¨(ñòÊõ)ÇÑ´Ù.
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Multi Evaporator SystemÀÇ °æ¿ì
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¿Âµµ°¡ °¡Àå ³·Àº Áõ¹ß±â¿¡¼ E.£Ð£®£Ò´ë½Å
ÈçÈ÷ üũ¹ëºê¸£ »ç¿ëÇÑ´Ù. °¢ E.P.RÀÇ ´Â °¢°¢ÀÇ Áõ¹ß¾Ð·Â¿¡¼
common suction pressure¸¦ »« (Êõ) ¾Ð·ÂÀÌ µÈ´Ù.
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°¢ E.P.RÀÇ Setting ¾Ð·ÂÀº Çã¿ëÇÒ ¼ö ÀÖ´Â ÃÖÀú
Áõ¹ß¾Ð·ÂÀÌ µÈ´Ù.
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Âü°í : ½ºÆú¶õ
±â¼úÀÚ·áÁý
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