93061809_1210
Summer mode
Thewintermodeisdisabledandsummermodeisenabledbyrotating
theheatingwatertemperatureselectorintoposition .Summer
mode (heating OFF) means only DHW heating. Frost protection
fortheheatingsystemandpumpanti-seizingprotection,however,
remainenabled.
Control unit / Function / Operation
DHW temperature selection (rotary selector)
When boilers are combined with a DHW cylinder, setting 1-9
correspondstoacylindertemperatureof15-60°C.Theadjustment
madeatthe DHW temperature selectorisineffectivewhen the
system is used in conjunction with a digital room temperature
controlleroraweather-compensatedcontroller.Thetemperature
willthenbeselectedatthecontroller(accessory).
Winter mode(position2to8)
Inwintermode,theboilerheats tothe temperatureselected at
theheatingwatertemperaturecontroller.Accordingtothepump
operatingmode,thecirculationpumpoperatesconstantly(factory
setting) or only in parallel with the burner activation / run-on
period.
Heating water temperature selection (rotary selector)
Thesettingrange2-8correspondstoaheatingwatertemperature
of38to75°C(factorysetting).
The adjustment at the heating water temperature controller is
ineffectivewhenthesystemisusedinconjunctionwithadigital
roomtemperaturecontrolleroraweather-compensatedcontroller
(exception:emissionstestmode).
Theheatingwatertemperatureiscalculatedfromthecontroller
setting.
Emissions test mode
Theemissionstestmodeisenabledbyrotatingtheheatingwater
temperatureselectorto
.Anypreviousburnercycleblockwill
becancelled.Thesignalringashesyellow.Theheatingsystem
willnotoperateinweather-compensatedmode,whentheemission
testhasbeenenabled.Insteaditoperatesatmaximumoutputand
triestoholdameanconstantboilerwatertemperatureof60°C.
Onlytheburner will operate, i.e.thepumpisOFF,if the boiler
watertemperature islowerthan60 °C.Theboilercircuitpump
willbestartedwhentheboilerwatertemperatureexceeds60°C.
The DHW cylinder primary pump only runs until the set DHW
temperaturehasbeenreached.TheburnerisswitchedOFFwhen
themax.boilerwatertemperaturehasbeenreached,iftheheating
energysuppliedcannotbetransferred.
Theemissionstestmodeterminateseitherafter 15 minutes or
automatically,ifthemaximumowtemperaturehasbeenexceeded.
Forarepeatactivation,turntheheatingwatertemperatureselector
rstanti-clockwiseandthenbackintoposition
.