I kēia mau lā iho nei, ua hoʻomohala mākou i kahi kiwikā pepeke wafer bi-directional no nā mea kūʻai aku Kepani, ke kaʻapuni nei ka wai hoʻoluʻu, mahana + 5 ℃.

Ua hoʻohana mua ka mea kūʻai aku i ka kiwikā pulelehua unidirectional, akā aia kekahi mau kūlana e pono ai ka kiwikā pulelehua bi-directional, no laila ua noi mai kā mākou mea kūʻai aku iā mākou e hoʻolako hou i ka kiwikā pulelehua wafer bi-directional ma kēia mau kūlana me ka ʻole o ka hoʻololi ʻana i nā ana maka i ka maka.

Ma hope o ke kūkākūkā ʻana o ka ʻoihana loea THT, ua hoʻoholo mākou e hoʻohana i ka ʻōmole sila unidirectional mua e hana i ka valve butterfly sila bi-directional. ʻO ka hopena, ua holomua mākou, PN25 kaomi maikaʻi hoʻi i ke kaomi 1:1.