Ko te hauhautanga te reo mahi o te rere o te hauhautanga i roto i te pouaka whakamatao wai hauhautanga. Ka mimiti te hauhautanga i te wera i te wā e mimiti ana i roto i te whakamomona, kātahi ka tukuna te wera i te wā e mimiti ana i roto i te pouaka whakamatao. Mā ēnei tukanga e rua e haere whakamua ana ka whakamatao te pouaka whakamatao. E rua ngā momo hauhautanga i roto i ngā mahi ahumahi -- ko te hauhautanga e pai ana ki te taiao tae atu ki te R134A, R410A me te R407C me te hauhautanga kāore e pai ana ki te taiao tae atu ki te R22.
I roto i te hokohoko o te ao, ka hiahia pea ētahi whenua ki te pouaka whakamatao wai hau-whakamatao me te hauhautanga taiao hei tiaki i te taiao. Mō ngā pouaka whakamatao wai hau-whakamatao a S&A Teyu, ka whakakīia katoatia ki ngā pouaka whakamatao taiao.
Mō te hanga, kua whakangaohia e S&A Teyu te neke atu i te kotahi miriona yuan mō ngā taputapu hanga, hei whakarite i te kounga o te raupapa o ngā tukanga mai i ngā wāhanga matua (whakamātao) o te pouaka whakamatao ahumahi ki te whakarewa i te pepa whakarewa; mō te mahi kawe taonga, kua whakatūria e S&A Teyu ngā whare putunga kawe taonga i roto i ngā tāone nui o Haina, ā, kua tino whakaitihia te kino nā te kawe taonga tawhiti, me te whakapai ake i te whai huatanga o te kawe waka; mō te ratonga muri-hoko, e rua tau te wā whakamana.
