Wolf R1 - Contractor Level Parameters - DHW and Boiler Excess Temp; DHW Sensor Mode (HG24); Boiler Excess Temp (HG25)

233061809_1210
Contractor level parameters
The excess temperature differential between the cylinder
temperature and the boiler water temperature during cylinder
heating is selected with parameter HG25. The boiler water
temperature continues to be limited by the maximum boiler
watertemperature(parameterHG22).Thisensuresthat,evenin
springandautumn,theboilerwatertemperatureishigherthan
thecylindertemperature,therebyensuringshortheatingtimes.
Theheatingcircuitpumpstartsautomaticallyforalimitedtime,to
preventthehighlimitsafetycut-outbeingtriggered,iftheboiler
water temperature exceeds 95 °C in summer mode whilst the
cylinderisbeingheated.
Boiler excess temperature
during cylinder heating
Parameter HG25
HG25
10
Factorysetting:10K
Settingrange:0to40K
Individual setting: ______
UsingtheDHWsensor operatingmode,threeseparatemodes
canbeappliedtotheDHWsensorinput.
Operating mode 1 is the factory setting for the cylinder
heating mode with electronic cylinder temperature sensors
(accessories).
Operating mode 2isdesignedforelectronicallycontrolledcylinder
heatingwithcylindertemperaturesensorandalsoforanexternal
thermostatdemand.Inthiscase,theexternalthermostat(zerovolt)
willbewiredonsiteparalleltotheelectroniccylindertemperature
sensor.Cylinderheatingwillbeimplementedasstandardforas
longastheexternalthermostatdemandsnoheat(contactopen).
Theboilercircuitandcylinderprimarypumpareactivatedwhen
theexternalthermostatdemandsheat(contactclosed).Theburner
heatstheboileratmaximumoutputtoTK-max.Contactorcontrol
providedonsitemustensurethatanexternalpumptransfersthe
heattotheexternalconsumer(e.g.airheater,swimmingpool).
Eveninstandbymode,thethermostatdemandhaspriorityover
allotherheatdemands.
Operating mode 3 is designed to control the cylinder primary
pumpwithanexternalthermostatorelectroniccylindertemperature
sensor,howeverwithoutsoftstart.Thecylinderprimarypumpalso
operatesiftheactualboilertemperatureislowerthantheDHW
temperature.Theexternalthermostatisconnectedwithzerovoltat
thecylindersensorterminal(SF).ThisenablestheDHWcylinder
primary pump output to be used to control the DHW cylinder
or for other purposes. The switching time program for cylinder
heating (programming module) remains enabled even when if
it operates only as thermostat. The burner heats the boiler to
thesetcylindertemperature+excessboilertemperatureduring
cylinderheating.
Sensorinputclosed: PumpON
Sensorinputopen: PumpOFF
DHW sensor mode
Parameter HG24
HG24
1
Factorysetting:1
Settingrange:1to3
Individual setting: ______
Note:
Afterchangingthe
sensoroperatingmode,
switchthesystemrst
OFFandthenONagain.