I-TEYU S&A ama-chiller ezimboni ngokuvamile afakwe izindlela ezimbili zokulawula izinga lokushisa ezithuthukisiwe: ukulawula izinga lokushisa okuhlakaniphile nokulawula izinga lokushisa okungaguquki. Lezi zindlela ezimbili zenzelwe ukuhlangabezana nezidingo zokulawula izinga lokushisa ezihlukene zezinhlelo zokusebenza ezahlukene, ukuqinisekisa ukusebenza okuzinzile nokusebenza okuphezulu kwemishini ye-laser.