Wolf R1 User manual

3061809_1210 Subjecttomodications GB
Installation and
operating instructions
Control unit R1
Wolf GmbH · Postfach 1380 · D-84048 Mainburg · Tel. [phone] · Fax [phone] · Internet: www.wolf-heiztechnik.de

3061809_12102
Index
Safetyinstructions ......................................................................3
Standards/Regulations .............................................................4
Installation/Electricalwork .................................................... 5-6
Commissioning...........................................................................7
Controlunit/Function/Operation....................................... 8-10
Displaying/Modifyingcontrolparameters................................11
Contractorlevelparameters ............................................... 12-28
SettingtheeBUSaddress ........................................................29
Parametersetupreport.............................................................30
Highlimitsafetycut-outchangeover ........................................31
Sensorresistances...................................................................32
WiringdiagramboilercontrolunitR1 .......................................33
Specication .............................................................................34
Faultmessages ........................................................................35

33061809_1210
Safety instructions
Burnersupplycable
Boilersensor
Highlimitsafetycut-out
Earthterminal
Thermometer
Thefollowingsymbolsareusedinconjunctionwiththeseimportant
instructions concerning personal safety as well as operational
reliability.
"Safetyinstructions"areinstructionswithwhichyoumustcomply
exactly,topreventinjuryandmateriallosses.
Dangerthrough'live'electricalcomponents.
NBSwitchOFFtheON/OFFswitchbeforeremovingthe
casing.
NevertouchelectricalcomponentsorcontactswhentheON/OFF
switchisintheONposition.Thisbringsariskofelectrocution,
whichmayresultininjuryordeath.
The main supply terminals are 'live' even when the ON / OFF
switchisintheOFFposition.
Thisindicatestechnicalinstructionswhichyoumustobserveto
preventmateriallossesandboilermalfunctions.
NB

3061809_12104
Standards / Regulations
Warnings - Neverremove,bypassordisablesafetyandmonitoringequipment.
- Only operate the system in perfect technical condition. Immediately
remove/remedyanyfaultsanddamagewhichmayimpactonsafety.
- Alwaysensurethatcoldwaterismixedinwithhotwater,whentheDHW
temperatureis set above60 °Corwhen operatingthe pasteurisation
system(65°C)(riskofscalding).
Maintenance / Repair -Regularlychecktheperfectfunctionofallelectricalequipment.
-Onlyqualiedpersonnelmayremovefaultsorrepairdamage.
-OnlyreplacefaultycomponentsorequipmentwithoriginalWolfspare
parts.
-
Alwaysmaintainprescribedelectricalprotectionvalues(seespecication).
AnydamageorlossresultingfromtechnicalmodicationstoWolfcontrol
unitsisexcludedfromourliability.
NB
The boiler control unit complies with the following regulations:
ECDirectives
- 2006/95/EC LowVoltageDirective
- 2004/108/EC EMCGuideline
DIN/ENStandards
EN60335-1,EN60730-2-9,EN14597,
DIN3440,EN50165,EN55014-1
Regarding the installation, observe the following regulations, rules
and directives.
- Theinstallationandcommissioningoftheheatingsystem
- LocalEMCregulations
- DIN VDE 0100 Regulations regarding the installation of high voltage
systemsupto1000V
- DINVDE105Operationofelectricalsystems
- EN50156Electricalequipmentincombustionsystems
- EN12828Heatingsystemsinbuildings
Appropriate use
TheWolfR1controlunitisdesignedexclusivelyforuseinconjunctionwith
Wolfboilers.TheR1controlunitisequippedwithatemperaturecontroller/
limiterandahighlimitsafetycut-out.Thecontrolunitregulatessinglestage
burners.Thesetboilertemperaturecanbeselectedbetween38-90°C.
The R1 control unit can be extended with a BM programming unit for
weather-compensatedtemperaturecontrolwithtimeprogram.
Other applicable documents
Boilerinstallationandoperatinginstructions.
Instructionsforallaccessoriesused.
Installation / Commissioning

53061809_1210
Installation / Electrical work
Jointhepowersupplycabletotheplugsupplied.Inserttheplug
into the marked-up location in the plug-in connector strip, and
securethecablewithitsstrainrelief.Routethecablethroughthe
boilerbackcutout.
Power supply connection
Electrical work
Mains230V LP=Primarypump A1=Programmableoutput KKP=Boilercircuitpump eBUS E1=Programmableinput SF=Cylindersensor AF=Outsidetemp.sensor
Wheninstallingthiscontrolunitensurethatsensorcapillariesare
neitherkinkednortwisted.
Never route on-site sensor and remote control leads / cables
togetherwithmainspowercables.
Implement the electrical wiring in accordance with the wiring
diagram.
Opentherearcontrolunitcoverafterreleasingbothscrews.
Burner supply cable
Guideitthroughtheapertureinthecontrolunitbracket(l.h./r.h.),
subjecttothesidetowhichtheboilerdooropens.
Boiler sensor
Insertintoanyopeningoftheboilersensorwell.
High limit safety cut-out
Insert sensor capillaries into any opening in the boiler sensor
well.
Earth terminal
Insertintothecontrolunitpanel.
Thermometer for boiler water temperature display
Insertintoanyopeningoftheboilersensorwell.
Installation
Burnersupplycable
Boilersensor
Highlimitsafety
cut-out
Earthterminal
Thermometer
Insertallplugsthatarenotusedintotheplug-instrip.Observe
thecolourcoding.
Info

3061809_12106
Pump connection WolfboilercircuitandDHWcylinderprimarypumpsarefactory-
ttedwithplugs.Routethecablethroughtheboilerbackcutout.
Inserttheplugintothemarked-uplocationsintheplug-inconnector
strip,andsecurethecableswiththeirstrainrelief.
Installation / Electrical work
Outside temperature
sensor
(accessory)
Jointheon-siteleadoftheoutsidetemperaturesensorwiththe
plugsupplied.Inserttheplugintothemarked-uplocationinthe
plug-inconnectorstrip,andsecuretheleadwithitsstrainrelief.
Route the lead through the boiler back cutout. Fit the outside
temperature sensor to the north or northeast wall, 2 to 2.5m
abovegroundlevel.
DHW sensor
(accessory)
PushtheDHWcylindersensor(accessory)intothecylindersensor
well.Routetheleadthroughtheboilerbackcutout.Inserttheplug
into the marked-up location in the plug-in connector strip, and
securetheleadwithitsstrainrelief.
E1
programmable input
JointhecableofinputE1withtheplugsupplied.Inserttheplug
into the marked-up location in the plug-in connector strip, and
securethecablewithitsstrainrelief.Routethecablethroughthe
boilerbackcutout.
eBUS accessories Remotecontrol,radioclockmodule,radioclockmodulewithoutside
temperature sensor, receiver for wireless outside temperature
sensorandwirelessanalogremotecontrol.
Join the on-site accessory cable with the green plug supplied
(designatedeBUS).Inserttheplugintothemarked-uplocation
intheplug-inconnectorstrip,andsecurethecablewithitsstrain
relief.Routethecablethroughtheboilerbackcutout.
Note:
IfseveraleBUSaccessoriesaretobeconnectedsimultaneously,
connecttheseinparallelattheeBUSterminal.
A1
programmable output
JointhecableofoutputA1totheplugsupplied.Inserttheplug
into the marked-up location in the plug-in connector strip, and
securethecablewithitsstrainrelief.Routethecablethroughthe
boilerbackcutout.

73061809_1210
Commissioning
SwitchONthesystemON/OFFswitchatthecontrolunit.
ON/OFFswitch
Theheatingsystemstartstooperatewiththefactorysettingsas
soonastheON/OFFswitchatthecontrolunitisswitchedON.
Note:
Thefactorysettingsofthecontrolunitrepresentempiricalvalues.
Subjecttosystemorequipmentlevel,controlparametersother
thanthosechosenatthefactorycanbeselected.Makechanges
viatheWolfcontrol accessoriesorviaaPC/laptop with Wolf
controlsoftware.Allfactorysettingsarestoredinanon-volatile
memory.
Duringcommissioning,thecontrolunitautomaticallyrecognises
anyconnectedcylinderand/oroutsidetemperaturesensor.
Theoutsidetemperaturesensorisloggedoffbydisconnectionand
byswitchingthesupplyvoltageOFFandONagain.
The system will not be protected against frost if no outside
temperature sensor is connected; only the boiler is frost
protected.
You can log off the cylinder sensor by disconnecting and
resetting.
Theboilersensorcannotbeloggedoff.
NB

3061809_12108
Control unit / Function / Operation
Fine-wire fuse M 6.3 A High limit safety
cut-out (STB)
Operationonlyby
contractors
eBUS connection
for PC / Laptop
Thermometer
Reset button
Illuminated ring
ON / OFF switch
Heating water temp. selection
DHW temperature selection
Reset button
1. Resetsallparameterstotheirfactorysettings.
 - TheoperatingmodeswitchmustbesettoO(OFF).
 - Press and hold down the reset button whilst setting the
operatingmodeswitchtoI(ON).
 - Keepholdingdowntheresetbuttonforatleast2seconds
afterthesystemhasstarted.
2. Forresettingtheoilcombustionunit(onlyinconjunctionwith
therelevantWolfcomponents)
 - Incaseofaburnerfault,theoilcombustionunitisresetvia
aresetrelaybypressingtheresetkey.
Note: Reset gas red boilers in case of a burner fault
directlyatthegascombustionunit,i.e.throughan
openinginthesilencerhood.
ON / OFF switch
TheboilercontrolunitisOFFinposition0.Thereisnofrost
protection.
Illuminated signal ring as status indicator
Display Explanation
Flashinggreen Standby(powersupplyON,noheatdemand)
Constantgreenlight Heatdemand:pumprunning,burnerOFF
Flashingyellow Emissionstestmode
Constantyellowlight BurnerON,amesteady
Flashingred Fault

93061809_1210
Summer mode
Thewintermodeisdisabledandsummermodeisenabledbyrotating
theheatingwatertemperatureselectorintoposition .Summer
mode (heating OFF) means only DHW heating. Frost protection
fortheheatingsystemandpumpanti-seizingprotection,however,
remainenabled.
Control unit / Function / Operation
DHW temperature selection (rotary selector)
When boilers are combined with a DHW cylinder, setting 1-9
correspondstoacylindertemperatureof15-60°C.Theadjustment
madeatthe DHW temperature selectorisineffectivewhenthe
system is used in conjunction with a digital room temperature
controlleroraweather-compensatedcontroller.Thetemperature
willthenbeselectedatthecontroller(accessory).
Winter mode(position2to8)
Inwintermode,theboilerheatstothetemperatureselected at
theheatingwatertemperaturecontroller.Accordingtothepump
operatingmode,thecirculationpumpoperatesconstantly(factory
setting) or only in parallel with the burner activation / run-on
period.
Heating water temperature selection (rotary selector)
Thesettingrange2-8correspondstoaheatingwatertemperature
of38to75°C(factorysetting).
The adjustment at the heating water temperature controller is
ineffectivewhenthesystemisusedinconjunctionwithadigital
roomtemperaturecontrolleroraweather-compensatedcontroller
(exception:emissionstestmode).
Theheatingwatertemperatureiscalculatedfromthecontroller
setting.
Emissions test mode
Theemissionstestmodeisenabledbyrotatingtheheatingwater
temperatureselectorto .Anypreviousburnercycleblockwill
becancelled.Thesignalringashesyellow.Theheatingsystem
willnotoperateinweather-compensatedmode,whentheemission
testhasbeenenabled.Insteaditoperatesatmaximumoutputand
triestoholdameanconstantboilerwatertemperatureof60°C.
Onlytheburner will operate, i.e.thepumpis OFF,if theboiler
watertemperature islowerthan 60°C.Theboilercircuit pump
willbestartedwhentheboilerwatertemperatureexceeds60°C.
The DHW cylinder primary pump only runs until the set DHW
temperaturehasbeenreached.TheburnerisswitchedOFFwhen
themax.boilerwatertemperaturehasbeenreached,iftheheating
energysuppliedcannotbetransferred.
Theemissionstestmodeterminates either after 15 minutes or
automatically,ifthemaximumowtemperaturehasbeenexceeded.
Forarepeatactivation,turntheheatingwatertemperatureselector
rstanti-clockwiseandthenbackintoposition .

3061809_121010
Control unit / Function / Operation
Insummermode,thecirculationpumpoperatesforapprox.10
seconds after a maximum idle period of 24 hours. Then, the
cylinderprimarypumpandtheDHWcirculationpump(ifinstalled)
willrunfor20seconds.Thispreventsthepumpfromseizingup.
TheburnerwillbeswitchedOFFforapprox.twominutesifitis
operatingwhentheanti-seizingpumpprotectionisenabled.
Anti-seizing pump
protection
Thermometer
todisplaythecurrentheatingwatertemperature.
Fine-wire fuse
M6.3AtoprotectthecontrolPCB.
eBUS connection
fordatatransferbetweenthecontrolunitandthePC/laptop
withthesoftwaresetforboilercontrolunits(accessory).
High limit safety cut-out STB
factory-setto110°C;adjustableto100°C,ifrequired.

113061809_1210
Displaying / Modifying control parameters
The control parameters can only be modi ed or displayed via Wolf control accessories
with eBUS capability. For procedures, check the operating instructions of the relevant
accessories.
Modicationsmustonlythecarriedoutbyarecognisedheatingcontractor
orbytheWolfcustomerservice.
Incorrectoperationcanleadtosystemfaults.
Please note when adjusting parameterA09 (frost protection / outside
temperature), that frost protection is no longer safeguarded if you set
temperatureslowerthan 0°C.Thiscan resultindamage totheheating
systemandallitscomponents(e.g.pipes,radiators,etc.).
NB
NB
Parameter overview
(Settingsandfunctionsonthefollowingpages)
Parameter Setting range Factory setting
A09 Frostprotectionlevel -20to+10°C +2°C
A10 ParallelDHWoperation 0/1 0
A14 MaximumDHWtemperature 60to80°C 65°C
HG01 Burnerswitchingdifferential(dynamic) 5 to 30 K 15 K
HG06 Pumpoperatingmode 0/1/2 0
HG07 Boilercircuitpumprun-ontime 0to30min 3min
HG08 MaximumlimitboilercircuitTV-max 40to90°C 75°C
HG09 Burnercycleblock 1to30min 4min
HG13 ProgrammableinputE1 1 to 11 1
HG14 ProgrammableoutputA1 0 to 14 0
HG15 Cylinderhysteresis 1 to 30 K 5 K
HG19 Cylinderprimarypumprun-ontime 0to10min 3min
HG20 Max.cylinderheatingtime 0to5h 2h
HG21 MinimumboilerwatertemperatureTK-min.* 38to90°C 38°C
HG22 MaximumboilerwatertemperatureTK-max. 50to90°C 80°C
HG24 DHWsensoroperatingmode 1/2/3 1
HG25 BoilerexcesstemperatureduringDHWcylinder
heating
0 to 40 K 10 K
HG26 Boilersoftstart 0/1 1
HG32 Returntemperatureraising** 0to70°C 30°C
HG33 Hysteresistime 1to30min 10min
HG34 eBUSfeed 0/1/2 2
HG35 0-5Vinputfortelecontrolsystem 0/1 0
HG50 Testfunctions 1 to 5 -
HG70 Display
Multifunction
inputE1
-50sensorshortcircuitorcontactclosed
-60sensorleadbreakorcontactopen
ActualtemperatureheadersensorHG13=7
ActualtemperaturereturnsensorHG13=11
* setto50°Cforpressurejetgasburners
** setto40°Cforpressurejetgasburners

3061809_121012
Contractor level parameters
The boiler circuit pump operates constantly if the outside
temperaturestaysbelowtheselectedvalue.Theburnerstartsand
heatstheboilertoamin.of38°C,iftheboilerwatertemperature
fallsbelow+5°C.
Note:
Onlychangethefactorysettingifyoucanensurethattheheating
system and its components will not freeze up at low outside
temperatures.
Frost protection limit
Parameter A09
A09
2.0
Factorysetting:2°C
Settingrange:-20to+10°C
Individual setting: ______
Parallel DHW operation
Parameter A10
A10
0
Factorysetting:0
Settingrange:0/1
Individual setting: ______
The boiler circuit pump is switched OFF during DHW cylinder
heating with DHW priority (0). The boiler energy will then be
used exclusively for heating the DHW cylinder. The cylinder
primary pump will only start, if the boiler water temperature is
5 °C higher than the actual cylinder temperature. The burner
shutsdownandtheheatingcircuitpumpisstarted,assoonas
thecylinderhasreacheditssettemperature.Thecylinderprimary
pumprunsonforthemaximumperiodselectedunderparameter
HG19(cylinderprimarypumprun-ontime).
Theheatingcircuitpumpcontinuestooperateinparallel DHW
mode (1).Thecylinderprimarypumpstarts,iftheboilerwater
temperatureis5°Cwarmerthanthecylindertemperature.The
cylinder is fully heated up when the cylinder has reached the
selectedwatertemperature.Thecylinderprimarypumprunson
forthemaximumperiodselectedunderparameterHG19(cylinder
primarypumprun-ontime).
IntheparallelDHWmode(1),theheatingcircuitcantemporarily
beoperatedatahighertemperature.
NB
Maximum DHW
temperature
Parameter A14
A14
65.0°C
Factorysetting:65°C
Settingrange:60to80°C
Individual settings: _________
This temperature can be enabled at 80 °C, if for commercial
reasonsahigherDHWtemperatureisrequired.
Ifpasteurisationhasbeenactivated(BM),theDHWcylinderwill
beheatedtotheselectedmaximumDHWtemperatureduringthe
rstcylinderheatingoftheday.
Takeadequatemeasurestopreventscalding.ParameterHG22
(maximumboilerwatertemperature)shouldbesetatleast5K
higherthantheselectedmaximumDHWtemperature.
NB

133061809_1210
Contractor level parameters
Fig.:
Timesequenceofthedynamicburnerswitchingdifferentialfora
user-denedburnerswitchingdifferentialof15Kandaselected
hysteresistime(parameterHG33)of10minutes.
Burnerruntime(min.)
Switchingdifferential(K)
Selectedswitchingdifferential15K
Hysteresistime10minutes
Theburnerswitchingdifferentialregulatestheburnertemperature
withinasetrangebyswitchingtheburnerONandOFF.Thehigher
theON/OFFtemperaturedifferential,thehighertheboilerwater
temperatureuctuationaroundthesetvalue,resultinginlonger
burnerruntimesandviceversa.Longerburnerruntimesprotect
theenvironmentandextendtheservicelifeofwearingparts
Burner switching differential
(dynamic)
Parameter HG01
HG01
15
Factorysetting:15K
Settingrange:5to30K
Individual setting: ______

3061809_121014
Feed pump for heating systems with cascade control and /
or low loss header
Heatingcircuitpumpbecomesthefeedpump.
Theheadersensoraffectstheheatingoperationaswellascylinder
heating.Thefeedpumprunsonlywhenthereisaburnerdemand.
Pumprun-oninaccordancewithparameterHG07.
Softstarting:AtTKIst < TKmin(38°C)feedpump"OFF".
MKP and cylinder primary pump continue to run with soft
starting.
Note: Increase the pump run-on time from 3 min to 15 min.
 SettheparameterHG13to7.
Pump operating mode 1:
Pump operating mode 0:
Heating circuit pump for heating systems without cascade
control and without low loss header
Theheatingcircuitpumprunsconstantlywhenthereisaheat
demand.TheheatingcircuitpumpwillbeswitchedOFFduring
DHWheating,ifDHWpriorityhasbeenselected.
Pump operating mode
Parameter HG06
HG06
0
Factorysetting:0
Settingrange:0/1
Individual setting: ______
ZUP = Feedpump
SPL = Cylinderprimarypump
PLP = Bufferprimarypump
SF = Cylindersensor
SAF = Headersensor
MK1 = Mixercircuit
MKP= Mixercircuitpump
Oil/gasboiler
SAF
ZUP
MKP
MK1
SPL
Cylinder
Lowloss
header
orbuffer
cylinder
SF
Hydraulicscheme:
Contractor level parameters

153061809_1210
Pump operating mode 2:
Buffer primary pump for BSP cylinder
Theheadersensor(buffer)onlyaffectstheheatingoperation.In
caseofcylinderheating,thereferencetemperatureisprovided
bytheinternalboilersensor.Inheatingmode,thebufferprimary
pumprunsonlywhenthereisaburnerdemand.Pumprun-onin
accordancewithparameterHG07.
Soft starting: At TKIst < TKmin (38 °C) buffer primary pump and
cylinder primary pump "OFF". MKP continues to run with soft
starting.
Note: Increasethepumprun-ontimefrom3minto15min.
 SettheparameterHG13to7.
ZUP = Feedpump
SPLP= Cylinderprimarypump
PLP = Bufferprimarypump
SF = Cylindersensor
SAF = Headersensor
MK1 = Mixercircuit
MKP = Mixercircuitpump
MKP
MK1
Wood
boiler Buffercylinder Oil/gasboiler
SAF
SF
PLP
SPLP
Solarthermalsystem
integration
Hydraulicscheme:
Contractor level parameters

3061809_121016
Contractor level parameters
Each time the burner is shut down in heating mode, it will be
blockedforthedurationoftheburnercycleblock.
TheburnercycleblockisresetbyswitchingtheON/OFFswitch
OFFandONorbybrieypressingtheresetbutton.
Individual setting: ______
Burner cycle block
Parameter HG09
HG09
4
Factorysetting:4min
Settingrange:1to30min
Thisfunctionlimitstheboilerwatertemperatureupwardsinheating
mode,andtheburnershutsdown.Thisparameterhasnofunction
duringcylinderheating,andtheboilerwatertemperaturemayalso
behigherduringthistime."Re-heatingeffects"canresultinthe
temperaturebeingexceededalittle.
Individual setting: ______
Maximum limit
Boiler circuit TV-max.
Parameter HG08
HG08
75
Factorysetting:75°C
Settingrange:30to90°C
Subjecttotherebeingnoheatdemandfromtheheatingcircuits,
theboilercircuitpumpwillrun-oninaccordancewiththesettime,
topreventaboilersafetyshutdownathightemperatures.
Individual setting: ______
Run-on time
Boiler circuit pump
Parameter HG07
HG07
3
Factorysetting:3min
Settingrange:0to30min
Programmable input E1
Parameter HG13
HG13
1
Factorysetting:1
Settingrange:1to11
ThefunctionsofinputE1canonlybescannedandadjustedwith
WolfcontrolaccessorieswitheBUScapability.
ThefollowingfunctionscanbeallocatedtoinputE1:
No. Explanation
1Roomthermostat
WithopeninputE1,heatingoperationwillbeblocked
(summermode),independentofanydigitalWolf
controlaccessories.
Exception:Remotecontrolledheatingcircuits

173061809_1210
Contractor level parameters
No. Explanation
2Maximumthermostat
Toenabletheburner,inputE1mustbeclosed.The
burnerwillremainblockedforaslongasthecontactis
open,eveninemissionstestmode,cascademodeand
forDHWandcentralheatingfrostprotectionmode.
3N/A
4N/A
5Fluegasdamper/ventilationairdamper
Functionmonitoringoftheuegasdamper/
ventilationairdamperwithoatingcontact.Closed
contactConditionforburnerenableincentral
heating,DHW,cascadeandemissionstestmode.
Important: A1 (HG 14 = 7) must be programmed for
fl ue gas damper / ventilation air damper
function.
6DHWcirculationpushbutton(onsite)
Afteractivatingthisbutton,theDHWcirculationpump
isoperatedfor5minutes,independentof
thetimeprogramorthepositionoftheprogram
selector(BM).
Important: In any case, output A1 must be
programmed to setting 13.

3061809_121018
7Centralsensor(lowlossheaderorbuffer)
Inheatingmode,theboilerwatertemperature
controlisnolongergovernedbytheactualboiler
sensortemperature,butinsteadbythecentralsensor.
Theboilerwatertemperaturesensorcontinuesto
monitortheminimumandmaximumboilerwater
temperatures.
8Burnerblock
Contactclosed,burnerblocked.
Theheatingcircuitandcylinderprimarypumpsoperate
instandardmode,butwithoutsoftstart.
Theburnerisenabledinemissionstestandinfrost
protectionmode.
(Switchingoutput1ifHG14=12,divertervalvehas
beenprogrammed).
9N/A
10 Externalburnerdemand,inputE1closed
(e.g.airheater,swimmingpooldemand,
secondcylinderheatingviathermostat)
Thesetboilerwatertemperatureissettothemaximum
boilerwatertemperatureminus5K
limitedbythemaximumowtemperature.Heating
circuitandcylinderprimarypumpinstandardmode.
Important: In any case, output A1 must be
programmed to setting 14.
11 Returnsensor
OnlyinconjunctionwithparameterHG32(return
temperatureraising).
Important: In any case, output A1 must be
programmed to setting 12.
NB NeveruseinputE1fortheconnectionofsafetyequipment
(e.g.secondhighlimitsafetycut-out,lowwaterindicator,safety
pressurelimiter).Inthisconnection,seetheboilerinstallation
instructions.
Contractor level parameters

193061809_1210
Contractor level parameters
ThefunctionsofoutputA1canonlybescannedandadjustedwith
WolfcontrolaccessorieswitheBUScapability.
ThefollowingfunctionscanbeallocatedtooutputA1:
Programmable
output A1
Parameter HG14
HG14
0
Factorysetting:0
Settingrange:0to14
Individual setting: ______
No. Explanation
0N/A
NocontrolofoutputA1.
1DHWcirculationpump100%
TheoutputA1iscontrolledbycontrolaccessories(BM),if
DHWcirculationhasbeenenabled.OutputA1isconstantly
enabledwhennoaccessorycontrollerisinstalled.
2DHWcirculationpump50%
TheoutputA1iscontrolledbycontrolaccessories(BM)
incyclesof5minutesONand5minutesOFF,ifDHW
circulationhasbeenenabled.OutputA1isconstantly
cycledin5minutecycleswhennoaccessorycontrolleris
installed.
3DHWcirculationpump20%
TheoutputA1iscontrolledbycontrolaccessories(BM)
incyclesof2minutesONand8minutesOFF,ifDHW
circulationhasbeenenabled.OutputA1cyclesconstantly
whennoaccessorycontrollerisinstalled.
4Alarmoutput
OutputA1iscontrolledafterafaultandexpiryof4minutes.
5Flamedetector
OutputA1iscontrolledafteraamehasbeenrecognised.
6N/A
7Fluegasdamper/ventilationairdamper
OutputA1isclosedbeforetheburnerstarts.Feedback
ischeckedviainputE1(HG13=5).IfinputE1does
notclose,theburnerwillnotstart,andaftertwo
minutesFC8willbegenerated.
Important: Input E1 must be programmed as fl ue gas/
ventilation air damper.
8Externalventing
OutputA1iscontrolledinvertedtotheburner.
SwitchingOFFexternalventilation(e.g.extractorfan)
duringburneroperationisonlyrequired,iftheboileris
operatedasopenuesystem.
9Supplyvalve
OutputA1iscontrolledafteraamehasbeenrecognised.
10 N/A
11 Feedpump
OutputA1iscontrolledateveryheatdemand(heating
circuitorcylinderheating).

3061809_121020
Contractor level parameters
The cylinder hysteresis regulates the start and stop points for
cylinderheating.ThehighertheON/OFFtemperaturedifferential,
the higher the cylinder temperature uctuation around the set
cylindertemperature.
Example: Setcylindertemperature60°C
 Cylinderhysteresis5K
 Cylinderheatingcommencesat55°Candendsat60°C.
Cylinder hysteresis
Parameter HG15
HG15
5
Factorysetting:5K
Settingrange:1to30K
Individual setting: ______
No. Explanation
12 Bypasspumpforreturntemperatureraising
OutputA1iscontrolledifthereturntemperatureislower
thantheselectedreturntemperatureraisingvalue
(parameterHG32).
Important: Input E1 must, in any case, be
programmed to setting 11 or if an external
burner block input E1
(HG13 = 8) has been programmed.
13 DHWcirculationpump
OutputA1iscontrolledfor5minutesafterapushbuttonhas
beenactivated(pulseinputE1).
Important: In any case, input E1 must be
programmed to setting 6.
14 OutputA1ON
OutputA1iscontrolledifinputE1isclosed
(externalburnerdemand).
Important: In any case, input E1 must be
programmed to setting 10.