Part no. 30 62 449 Subject to modications 03/09 GBInstallation and operating instructionsCascade module KMWolf GmbH · Postfach 1380 · 84048 M
3062449_030910Electrical connectionConguration 1: Mixer circuit and cylinder circuitPower 230 VACMaximum thermostat max. TH 1)Mixer motor MMMixer c
3062449_0309 11Electrical connectionConguration 2: Mixer circuit and convector heater circuitPower 230 VACMixer motor MMMixer circuit pump MKPPrima
3062449_030912Electrical connectionConguration 3: Mixer circuit and heating circuitPower 230 VACMixer motor MMMixer circuit pump MKPHeating circui
3062449_0309 13Electrical connectionConguration 4: Cylinder circuit and third party boiler controlMaximum thermostat max. TH1)Fault message output S
3062449_030914Electrical connectionConguration 5: Mixer circuit and return temperature raising for central heating backupPower 230 VACMixer motor M
3062449_0309 15Electrical connectionConguration 6: Heating circuit and return temperature raising for soft startingPower 230 VACMixer motor MMBoi
3062449_030916Electrical connectionConguration 7: Mixer circuit with indirect return temperature raising for soft startin
3062449_0309 17Electrical connectionConguration 8: Mixer circuit (factory setting)Power 230 VACMixer motor MMBoilerHeating owHeating returnMixer c
3062449_030918Electrical connectionConguration 9: Heating circuitPower 230 VACBoilerHeating owHeating returnHeating circuit pump HKPFault message i
3062449_0309 19Electrical connectionConguration 10: Cylinder circuitPower 230 VACBoilerHeating owHeating returnDHW cylinderCylinder primary pump SPL
3062449_03092IndexSafety instructions ...3Standards / Regulations ...
3062449_030920Electrical connectionConguration 11: Convector heater circuitPower 230 VACBoilerHeating owHeating returnConvector heater circuitPrimar
3062449_0309 21Conguration 12: 0 – 10 V input for telecontrol system2) see description "Fault message input" page 8Boiler0-10 VDC inputFaul
3062449_030922Conguration 13: Return temperature raising, wood burning boilerPower 230 VACMaximum thermostat MaxTH 1)Mixer motor MMMixer circuit pu
3062449_0309 23Commissioning guidelines Implement the following steps in the order in which they are listed to achieve a successful com
3062449_030924CommissioningProgramming the following components1. Wolf boiler control unit COB, Wolf control unit for wall mounted boilers and MGK st
3062449_0309 25Setting the eBUS address of the extension and programming modules (KM, MM, BM)Setting the eBUS address of the extension and programming
3062449_030926Setting parametersThe standard settings for all parameters and switching times are xed and stored in a non-volatile memory. A
3062449_0309 27Switching times Mixer circuit: The switching times for the mixer circuit in the cascade module are stored in the cascade modu
3062449_030928List of parameters, standard setting / SystemParameter listStandard settingThis is found at control level 2 → Standard settings → Mixer
3062449_0309 29Parameter listContractor, mixer circuit in the KMThis is found at control level 2 → Contractor → Mixer 1ParametersSetting range Fact
3062449_0309 3Index / Safety instructionsThe following symbols are used in conjunction with these important instructions concerning personal safety
3062449_030930Parameter listContractor cascadeThis is found at control level 2 → Contractor → CascadeParameters Setting rangeFactory settingIndividual
3062449_0309 31DisplayKM60Control deviation - - - -KM61Overall modulation level - - - -KM62Modulation level, boilers - - - -KM70E1 - - - -KM71E2 - - -
3062449_030932MI 02 maximummixer circuit temperatureThe maximum mixer circuit temperature limits the set ow temperature of the mixer circuit
3062449_0309 33 MI 04 Screed drying If an under oor heating system is started for the rst time in new buildings, the set ow temperature may, as
3062449_030934MI 08 Set return temperatureConguration km 01 = 7The return temperature is permanently monitored. If the return temperature falls
3062449_0309 35MI 10 = 0: BUS feed "OFF", i.e. the BUS feed is always switched OFF.MI 10 = 1: BUS feed "ON", i.e. the BUS feed is
3062449_030936See "MI 15 = dTOFF (stop differential)"MI 16 dTEin(start differential)Conguration km 01 = 5Conguration 5 comprises a mixer c
3062449_0309 37Cylinder heating starts when the actual cylinder temperature < set cylinder temperature - 5 K. The set ow temperature then
3062449_030938KM 01 Conguration The corresponding conguration may, subject to the application of the KM, have to be selected. Up to 13 congurations
3062449_0309 39A blocking time is provided that prevents further boilers/heating stages from being started, to prevent boilers/heating stages frequent
3062449_03094Standards / Regulations- According to DIN EN 50110-1, only qualied electricians may carry out the installation and commissioning of the
3062449_030940The boiler sequence (A, b, C, d) is selected with the “Selection boiler sequence” parameter.Setting A:The boiler sequence selected under
3062449_0309 41The setting of the boiler sequence is illustrated using two boilers as example.Description andexample of KM13KM 13 1A 1Boiler sequence
3062449_030942 KM 15 Modulation level, stopand KM 16 Modulation level, starta) For modulating boilers (KM 02 = 3)Starting boilers:Boiler 1 is started
3062449_0309 43b) For single stage boilers(KM 02 = 1; KM 15 and KM 16 exert no inuence)Starting boilers:Boiler 1 is started when the overall modulati
3062449_030944c) For two-stage boilers (KM 02 = 2; KM 15 and KM 16 exert no inuence)With two-stage boilers, the second stage is treated as if it were
3062449_0309 45KM 17 DHW circulation pumpConnecting a DHW circulation pump to the KM only works in conjunction with conguration 04 at the KM.The DHW
3062449_030946Start enabling/start blocking for the lead boiler:- Start enabling: Boiler temperature, lead boiler > actual header temperature +
3062449_0309 47Falling header temperature:Sa_ist ≤ Sa_Soll - hysteresis, parallel mode ⇒all mixers towards "CLOSE".Sa_ist ≤ Sp_soll ⇒all mix
3062449_030948Parameters / Function descriptionKM 27 Set boiler valueandKM 28 Set boiler value hysteresisandKM 29 Set buffer valueandKM30 Set buffer v
3062449_0309 49Function explained: System conguration 4: Third party boiler control (KM 02 = 3):Burner control (230 V) via "MKP" output, if
3062449_0309 5TerminologyHeader temperatureThe header temperature is the ow temperature in the header downstream of the low loss header.
3062449_030950Set header temperature in [°C]Set header frost protectionInput in [V]KM 31 Operating mode0 - 10 V inputConguration KM 01 = 12When using
3062449_0309 51KM 50 Test function Parameter KM50 enables the individual control of the relays.KM50 = 1 ⇒ Control, mixer circuit pump relay MKPKM50 =
3062449_030952Additional functions / ResetThe set cylinder temperature is 10 °C when cylinder heating is blocked. Cylinder frost protection is activat
3062449_0309 53Fault codesWhen KM recognises a fault, the red LED ashes and the cascade module fault code is displayed on the associated BM as w
3062449_030954Changing a fuse:If the KM shows no function at all and there is no LED display, although power is ON, check the appliance fuse and chang
3062449_0309 55Sensor resistancesNTCSensor resistancesBoiler sensor, cylinder sensor, solar cylinder sensor, outside temperature sensor, ow sensor, h
3062449_030956SpecicationSpecicationSupply voltage ... 230 VAC (+10 / -15%) / 2A / 50
3062449_0309 57Keyword indexAAnti-seizing pump protection ... 5
3062449_030958Keyword indexMMI 01 Minimum mixer circuit temperature ... 32MI 02 Max
3062449_0309 59Keyword index
3062449_03096Abbreviations / Equipment descriptionAbbreviations SAF - Header sensorBPF - Bypass sensorMKF - Mixer circuit sensorPF - Buffer se
Wolf GmbH · Postfach 1380 · 84048 Mainburg · Tel. 08751/74-0 · Fax 08751/741600 · Internet: www.wolf-heiztechnik.de
3062449_0309 7InstallationInstallation, cascade module- Remove the cascade module from its packaging.- Fitting directly to the wall.- Connect one ou
3062449_03098Electrical connectionNote: During service work, isolate the entire system from the power supply, otherwise there will be a risk
3062449_0309 9Conguration overviewConguration overviewSubject to the application of the KM, 13 different system versions are available. The differen
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