Cov dej ntws yog ib qho tseem ceeb ntawm cov tshuab chiller, uas yog tsim los ntawm cov twj tso kua mis, ntws hloov, ntws sensor, ntsuas kub, solenoid valve, lim, evaporator thiab lwm yam khoom. Tus nqi ntws yog qhov tseem ceeb tshaj plaws nyob rau hauv cov dej system, thiab nws cov kev ua tau ncaj qha cuam tshuam rau lub tub yees thiab txias ceev.