Posachedwapa, valavu ya Jinbin yamaliza bwino kupanga valavu ya dn3900 air damper ndi damper ya square louver. Vavu ya Jinbin yapambana nthawi yotanganidwa. Madipatimenti onse adagwira ntchito limodzi kuti amalize dongosolo lopangira.

Popeza valavu ya Jinbin ili ndi luso kwambiri popanga valavu yopopera mpweya ndi damper yopopera mpweya, dipatimenti yaukadaulo inapanga mwachangu zojambula zopangira. Dipatimenti yopanga imalumikizananso ndi dipatimenti yaukadaulo ndipo imagwira ntchito nthawi yowonjezera kuti iwonetsetse kuti ntchitoyo ikuyenda bwino mkati mwa nthawi yomanga. Ikani dongosolo lalikulu la udindo, onetsani mfundo zazikulu, mvetsetsani mfundo zazikulu, limbitsani njira, ndikusamalira bwino momwe ntchitoyo ikuyendera. Madipatimenti opanga amapeza mavuto ndikuthetsa mavutowo nthawi yake. Dipatimenti yopanga iyenera kuyang'anira nthawi zonse ndikukonza misonkhano kuti ipereke lipoti la kumaliza ntchito inayake kamodzi pa sabata ndikuyang'ana kamodzi pamwezi. Zigawo zonse ziyenera kutsatiridwa kuti zilimbikitse kupanga ndikuletsa kuchedwa. Mu njira yopanga fakitale, dziwani bwino momwe gawo lililonse la chida chamakina likuyendera, chitani bwino polumikizira njira zapamwamba ndi zapansi, kuti mupewe kusokoneza ntchito yotsatira yopangira. Pamavuto omwe apezeka mu njira yopangira, lankhulanani ndi madipatimenti aukadaulo panthawi yake, kuti mupewe kusokoneza kayendedwe ka msonkhano.

Gulu la valavu yopopera mpweya ndi louver damper iyi zinaperekedwa bwino ndipo zinapambana mayeso a kasitomala.

Valavu yopopera mpweya ndi chopopera mpweya chopopera mpweya chopopera mpweya chimagwiritsidwa ntchito mu fumbi lokhala ndi mpweya wozizira kapena mpweya wotentha wa payipi ya mpweya wopopera mpweya m'makampani opanga mankhwala, zipangizo zomangira, malo opangira magetsi, magalasi ndi mafakitale ena, ngati chipangizo chowongolera mapaipi a mpweya wopopera mpweya wopopera mpweya kapena kudula mpweya.