Wolf CGU-2-18 - Control Unit Operation; Illuminated Signal Ring Indicator; Temperature Selectors

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Control unit operation
Control unit operation
ON/OFFswitch
DHW temperature
selector
Heatingwater
temperature
selector
Resetbutton Thermometer
Pressure
gauge
Illuminated
signalring
Illuminated signal ring as status
indicator
Illuminated signal ring Explanation
Flashinggreen
Standby(powersupplyON,burnerOFF,
e.g.summermode)
Constantgreenlight Wintermode:Pumprunning,burnerOFF
Flashingyellow Emissionstestmode
Constantyellowlight Burneroperates,ameON
Flashingred Fault
Summermode(heatingOFF)
Wintermodeposition2to8
Emissionstestmode
(illuminatedringashesyellow)
DHW temperature selector,
boiler *
1(15°C)...9(65°C)Gasboilerwithcylinder
1(40°C)...9(65°C)Gascombiboiler
Heating water temperature
selector
2(40°C)...8(80°C)
* When the hardness of the water is over 15°d.H. (2.5mol/m³) the cylinder water
temperaturemaybesettoamaximumof55°C.Thiscorrespondswithoutaccessory
controllertoasettingof5-6ontheDHWtemperatureselectorwithgascombiboilers
or6-7ongasboilerswithcylinders.
The BM programming module can also be integrated into the control unit of gas
redboilers.Thatmeansthatalladjustmentsaremadeatthecontrolunitofthegas
red boiler. For installation and operation, see BM programming module operating
instructions.
Note: