Wolf CGU-2-18 - Faults and Fault Codes

3062348_0511 9
Information for energy-efcient
operation
Keep the heat inside the room - at night too
Atnight,closingshuttersanddrawing curtains noticeably reduces heat loss via the
windowareas.Insulatingtheradiatorrecessesandlightcolouredpaintworkcanreduce
yourheatingbillsbyupto4%.Airtightjointsatwindowsanddoorsalsohelptokeep
energyinsidetheroom.
Minimise energy loss through sensible ventilation
Ventilatingforhourslosesheatstoredinwallsandobjects.Asaresult,theambient
climatewillonlybecomecomfortableagainafterprolongedheating.Shortandthorough
airingismoreeffectiveandpleasant.
Venting the radiators
Regularly vent the radiators in every room.This safeguards the perfect function of
radiatorsandthermostats,particularlyintheupperapartmentsofapartmentblocks.
Theradiatorwillthenbeabletorespondquicklytochangingheatdemands.
Intelligent use of DHW circulation pumps
AlwayscontrolDHWcirculationpumpsviatimeswitches.Programtheseinaccordance
withyourDHWdemandpatterns.
The optimum DHW temperature
OnlyeversettheDHWtemperature,orthat of the cylinder,tothetemperatureyou
reallyrequire.Anyadditionalheatingusesadditionalenergy.
Whenthehardnessofthewaterisover15°d.H.(2.5mol/m³)theDHW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actualtemperaturethenfallsbetween50°Cand55°C.
Sensible handling of DHW
Showering consumes only approx. 1/3 of the water volume required for a bath.
Immediatelyrepairanydrippingtaps.
DHW mode
Iftheilluminatedringofthestatusindicatorashesred,wherepossiblereadthefault
codeoftheconnectedcontrollerandnotethecode.The boiler can be restarted by
pressingtheresetbutton.Incaseofrepeatedfaults,switchOFFtheboilerandnotify
your heating contractor.
GasboilersfromtheCGU-2seriesareequippedwithanelectronicuegasmonitor.
Ifuegasisescapingatthedraughthoodthisshutsdownthegasboiler.Theboiler
restartsautomaticallyafterapprox.15mins.
Caution - risk of damage, poisoning and suffocation.
Faults / Fault codes