Malinga ndi zomwe takumana nazo, ngati vutoli litachitika mutagwiritsa ntchito kwa nthawi yayitali, izi zitha kukhala:
1. Chosinthira kutentha ndi chauve kwambiri, choncho chiyenera kutsukidwa;
2. Chipangizo choziziritsira madzi chikutulutsa madzi mufiriji. Ogwiritsa ntchito ayenera kupeza ndikusungunula malo omwe akutuluka madzi ndikuyikanso mufirijiyo;
3. Malo ogwirira ntchito a chipangizo choziziritsira madzi ndi ozizira kwambiri kapena otentha kwambiri, zomwe zimapangitsa chipangizo choziziritsira madzi kulephera kukwaniritsa zofunikira pa firiji. Ndikofunikira kusankha chipangizo choziziritsira madzi chomwe chili ndi mphamvu yayikulu yoziziritsira kapena kuyika chipangizo choziziritsira madzi pamalo otentha oyenera.
Ponena za kupanga, S&A Teyu yayika zida zopangira zopitilira yuan miliyoni imodzi, kuonetsetsa kuti njira zosiyanasiyana zikuyenda bwino kuyambira pazigawo zazikulu (condenser) za chiller cha mafakitale mpaka kulumikiza zitsulo; pankhani ya mayendedwe, S&A Teyu yakhazikitsa malo osungiramo katundu m'mizinda ikuluikulu ya China, zomwe zachepetsa kwambiri kuwonongeka komwe kumachitika chifukwa cha mayendedwe ataliatali a katundu, komanso kukonza bwino mayendedwe; pankhani ya ntchito yogulitsa pambuyo pogulitsa, nthawi ya chitsimikizo ndi zaka ziwiri.
