3061809_121010
Control unit / Function / Operation
Insummermode,thecirculationpumpoperatesforapprox.10
seconds after a maximum idle period of 24 hours. Then, the
cylinderprimarypumpandtheDHWcirculationpump(ifinstalled)
willrunfor20seconds.Thispreventsthepumpfromseizingup.
TheburnerwillbeswitchedOFFforapprox.twominutesifitis
operatingwhentheanti-seizingpumpprotectionisenabled.
Anti-seizing pump
protection
Thermometer
todisplaythecurrentheatingwatertemperature.
Fine-wire fuse
M6.3AtoprotectthecontrolPCB.
eBUS connection
fordatatransferbetweenthecontrolunitandthePC/laptop
withthesoftwaresetforboilercontrolunits(accessory).
High limit safety cut-out STB
factory-setto110°C;adjustableto100°C,ifrequired.