Ihlanganiswe nobuchwepheshe obuyinhloko be-HOLTOP AHU, ikhoyili ye-DX (Direct Expansion) i-AHU inikeza kokubili i-AHU neyunithi yokujiya yangaphandle.Kuyisixazululo esivumelana nezimo nesilula sayo yonke indawo yokwakha, njengenxanxathela yezitolo, ihhovisi, iCinema, Isikole njll.

Iyunithi ye-Direct Expansion (DX) yokubuyisela ukushisa nokuhlanza iyunithi yokwelapha komoya esebenzisa umoya njengomthombo wamakhaza nokushisa, futhi iyithuluzi elihlanganisiwe lakho kokubili imithombo ebandayo neyokushisa.Iqukethe ingxenye yokucindezela umoya opholile wangaphandle (iyunithi yangaphandle) ehlinzeka ngokushisa okubandayo nendawo yokushisa kanye nengxenye yeyunithi yasendlini (iyunithi yasendlini) ebhekele ukwelashwa komoya, exhunywe ngokuqondile ngamapayipi esiqandisi.Iyunithi yokubamba komoya ye-DX ayidingi imibhoshongo yokupholisa, amaphampu amanzi okupholisa, ama-boilers nokunye ukufakwa kwamapayipi asizayo.Isakhiwo sesistimu ye-AHU silula, silondoloza isikhala, futhi kulula ukuyifaka nokuyinakekela.

I-HOLTOP HJK yochungechunge lwe-DX yokutakula ukushisa nokuhlanza amayunithi omoya asebenzisa ubuchwepheshe obuyinhloko be-HOLTOP bokubuyisela ukushisa, kusetshenziswa izingxenye zesiqandisi zomkhiqizo wekhwalithi ephezulu, ezizithuthukisayo futhi ezikhiqiza okokusebenza komthombo wokushisa nokushisa.Amayunithi okubamba komoya angahlonyiswa ngezikhiqizo ezihlukene zokubuyisa ukushisa, njengezishintshisi zokushisa ezijikelezayo, izishintshisi zokushisa ze-plate fin kanye nezishintshisi zokushisa zamapuleti ukuze kutholwe kahle amandla omoya okhiphayo nokonga amandla.Ngesikhathi esifanayo, ingabuye ilungiselelwe ngezigaba ezihlukahlukene zokusebenza ezifana nokuhlunga, ukushisa nokushisa ukuze kuhlangabezane nezidingo ezahlukene zokunethezeka nezinqubo.Ngaphandle kwalokho, ukubukeka kwedizayini ehlanzekile kanye nezinga lokuvuza komoya eliphansi kakhulu kuhlangabezana nezinga le-air conditioning yokuhlanza.

Uma kuqhathaniswa nezinye izinhlelo zokubamba komoya ezimaphakathi nendawo, uhlelo lwe-DX Coil Air Handling lulula futhi luyaguquguquka, ngakho-ke lusetshenziswa kakhulu enxanxatheleni yezitolo, ezakhiweni zamahhovisi, emafulethini, etiyetha, ezikoleni nakwezinye izindawo.