313061809_1210
Adjustment of the high
limit safety cut-out (STB)
Thehighlimitsafetycut-out(STB)isfactory-setto110°C.
Ifrequired,itcanbechangedoverto100°C.
Such changes are irreversible.
Disconnectthecontrolunitfromitspowersupply.
Removecap.
Removethecoverfromthehighlimitsafetycut-out.
Releasethehighlimitsafetycut-outxingscrews.
Releasethexingscrewsofthecontrolunitfrontcoverandpivot
forward.
Removethehighlimitsafetycut-out.
Release the clamping screw.Adjust the setting disc to 100 °C
inaccordancewiththescaleandretightentheclampingscrew.
Reassembleinreverseorder.
NBThemaximumboilerwatertemperature(TK-max)must
notbesetto90°C,ifthehighlimitsafetycutouthasbeen
adjustedto100°C.
High limit safety cut-out changeover