Ngokuvamile, ifeni yesishisi samanzi iyayeka ukusebenza (okungukuthi ifeni ayijikelezi) ingabangelwa yizizathu ezilandelayo:
1. Isekethe yefeni ayixhumene kahle noma iyakhululeka. Isixazululo: Hlola isekethe ngokufanele.2. Umthamo uyancipha. Isixazululo: Shintsha omunye umthamo.
3. Ikhoyili iyasha. Isixazululo: Ifeni lonke lidinga ukushintshwa.
Uma ama-water cooler owathenge kwa-S&A Teyu enale nkinga, ungaxhumana nesikhungo sesevisi ngemuva kokuthengisa.
Ngokuphathelene nokukhiqiza, i-S&A Teyu itshale imishini yokukhiqiza engaphezu kwesigidi sama-yuan, iqinisekisa ikhwalithi yochungechunge lwezinqubo kusukela ezingxenyeni eziyinhloko (i-condenser) ye-industrial chiller kuya ekushiseni insimbi; ngokuphathelene nokuthutha, i-S&A Teyu isungule izindawo zokugcina impahla emadolobheni amakhulu aseShayina, njengoba inciphise kakhulu umonakalo obangelwa ukuthutha impahla ibanga elide, futhi ithuthukise ukusebenza kahle kwezokuthutha; ngokuphathelene nensizakalo yangemva kokuthengisa, isikhathi sewaranti siyiminyaka emibili.
