4.1 Uyilo olulula kunye nokuseta ngaphandle komzamo.
4.2 Umthamo omkhulu womoya kunye nokutshintsha kobushushu bomoya obuncinci.
4.3 Intsimbi eqinileyo yokufudumeza ityhubhu yombane.
I-4.4 Iityhubhu ze-Steel-aluminium fin ene-high-high exchange performance performance. I-tube yesiseko yenziwe kwi-tube engenamthungo 8163, ekwazi ukumelana noxinzelelo kunye nexesha elide;
4.5 Ivalve yomphunga yombane ilawula ukungena, ukuvala ngokuzenzekelayo okanye ukuvula ngokusekwe kubushushu obusetwe kwangaphambili, ngaloo ndlela iqinisekisa ulawulo oluchanekileyo lobushushu.
I-4.6 I-Ventilator ye-immune kubushushu obuphezulu kunye nokufuma okuphezulu, kunye ne-IP54 yokukhusela ukulinganisa kunye ne-H-class insulation rating.
4.7 Ukudityaniswa kwenkqubo yokuphelisa ubushushu kunye nenkqubo yomoya omtsha kubangela ilahleko encinci yobushushu ngesixhobo sokuvuselela ubushushu obumdaka.
4.8 Ukuzaliswa ngokuzenzekelayo komoya omtsha.