Markings on the device
2.2 Firmware versions
Firmware revisions
Old
New
1.0x
2.0x/2.1x
Additional features:
− Switching output (see Annex).
− Data logging function (see Configuration Manual u KH 5757).
− Command mode (see Configuration Manual u KH 5757).
2.0x/2.1x 2.20
Extension of function of switching output (F16) to additional setting option "Circulation
pump (heating) reversed" (see Annex and Configuration Manual u KH 5757).
New pump protection function (F17) (see Annex and Configuration Manual u KH 5757).
2-2
EB 5757 EN