Ma siphon a Pressure gauge amagwiritsidwa ntchito kuteteza kuchuluka kwa kuthamanga kwamphamvu kutengera kutentha kwapa media monga nthunzi komanso kuchepetsa mphamvu yakuthamanga kofulumira.Sing'anga yoponderezedwa imapanga condensate ndipo imasonkhanitsidwa mkati mwa coil kapena pigtail gawo la pressure gauge siphon.Condensate imalepheretsa ma TV otentha kuti asagwirizane ndi chida chokakamiza.Pamene siphon imayikidwa koyamba, iyenera kudzazidwa ndi madzi kapena madzi ena aliwonse oyenera olekanitsa.