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Honeywell EN2H-0221GE51 R0808 service manual Cascading menu Cascade, OFF, on

Models: EN2H-0221GE51 R0808

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Operation	SDC / DHC

5.4.13"Cascading" menu (CASCADE)

The parameters in this menu refer solely to the parameters that are associated with the cascading of multiple heat generators.

This selection is only available if multiple heat generators exist in the control system.

Para-	Designation	Setting range / Setting values	Factory	Setting
meter			setting
01	Switching	0.5... 30 K	8
	differential

02	Connection delay	0 ... 200 min	0

03	Switch-off delay	0 ... 60 min	0

04	Switchover power	10 ... 100 %	65
	of stage sequence

05	Stage reversal	OFF, 1 to 250 h	OFF

06	Guidance stage	1 ... maximum number of stages	1

07	Peak-load stage	OFF, 2 ... maximum number of	OFF
		stages
		All heat generators are numbered
		consecutively within the cascade.
		The total quantity determines the
		maximum number of stages.

08	Switchover of base	OFF, ON	OFF
	load with grouping

09	Quick hot-water	OFF, 1 ... maximum number of	OFF
	connection	stages

110	EN2H-0221GE51 R0808

Image 110

Honeywell EN2H-0221GE51 R0808 service manual Cascading menu Cascade, OFF, on

Contents

Smile SDC heating and district heating controller EN2H-0221GE51 R0808 Contents SDC / DHC Menu-selection levelControl Functions 114 Hydraulic Components 128 155 171 255 Technical data 250254 SDC / DHC Software version Intended useConnection conditions Power supplyCable installation Cable cross-sectionsHot-water temperature greater than 60 C Grounding and zeroingSDC / DHC Safety precautions for EMC-compliant installation SDC / DHC SDC / DHC SDC / DHC SDC / DHC Overview Abbreviations Operation Display and operating elementsDisplay basic display Factory setting Daytime room temperature buttonSetting Setting rangeDaytime hot-water temperature button Setting Night-time room temperature buttonFactory setting Setting range 2.4 Factory setting 50 CSetting range One-time hot-water circuit loading Operating mode button basic displayAutomatic AbsentParty SummerSetting Return to the basic display Absence mode short-term programParty mode short-term program P1 P2, P3Automatic mode Enabling Display 2.5.4 Disabling / enabling default program P2 to P3Disabling / enabling default programs P2 to P3 Manual summer operation excluding heating operationContinuous heating operation Continuous lowering operationSwitching time programs / Holiday programs button Holiday mode Factory setting Current date System information buttonOperating overview EM-SET Temperature displays Information Display Condition RemarksOFF Information Display Condition Remarks ON/OFFMC2 ThermostatMC1 Operating states Information Display ConditionInformation Display Condition Clock Information Display Condition Manual mode / Emission measurement button Cancellation PressSDC / DHC Access to the technician / OEM area Procedure2.10 Setting Setting range Heating curve Menu-selection level Parameter Programming Date Parameter Programming Date Hydraulics Parameter Programming Date Hydraulics Configuration Hot water Direct heating Circuit Mixed heating Parameter Returning AccessTime Date menu Timeprograms menu Access Returning Selection of day of the week and cycle Selection of the control circuitSelection of the program Switch-off time Cycle temperature Switching time programming programs P2 and P3 disabled DHWDefault switching time program P1 for heating and hot water Default program P1Switching time programming program P2 and P3 enabled Default program P2 Default program P3Copying switching time programs days Source day Target day Calling up the copy function daysCalling up the copy function heating circuits Block programming SDC / DHC Copying heating circuits DHWReloading default programs SDC / DHC Reloading default programs Switching time programs P2 and P3 enabled Factory setting German System Parameters menu Access ReturningSetting values DE System information button, pg Language selectionSwitching time programming Set values Factory setting EffectsControl mode selection Time programSetting range Individualised operating mode for each heating circuit Factory setting 20 C Quick increase in outside temperatureSlow increase in outside temperature Parameter resetComplete reset DHW menuALL Night-time hot-water temperatureFactory setting 40 C ECO ECO switch-off operationReduced operation ECO, REDRAD Heating systemUFH ConvFactory setting Setting Parameter settings Hydraulics menu HydraulicPara Designation Setting range / Setting values Meter Mixed heating Electrical heating circuit Buffer sensor Setting System parameters menu System ALL OFF, on SDC/DHC RTCSDC, DHC OEMHot-water circuit menu DHW SDC / DHC Auto CON Direct heating circuit menu Unmixed CircRED Room connection Stby Mixed heating circuit 1 / 2 MIX.VALVE 1 / MIX.VALVE 2 menus Room connection SDC / DHC Room control Tn 240 min SDW 30 only Holiday operating Heat generator menu Heat Gener Unlimited minimum limit SLT 102 EN2H-0221GE51 R0808 Reset OFF ResetDistrict hot water menu DIST.HEATING Return increase menu Return Contr Solar menu Solar Solid menu Solid Fuel Buffer menu Buffer Total flow regulation menu Main Supply Cascading menu Cascade OFF-ON-OFF Data bus menu BUSRelay test menu Relay Test STOP-OPEN-CLOS StopError messages menu Alarm Error messages 2 menu Alarm Sensor calibration menu Sensor ADJControl Functions Example SLP, DKP SLPVF2 DKP, VA1 VA2Sslp Switching time program enablingFKF SlvfSuppressing the cycle temperature on time program level Enabling Separate Control ModeVariable inputs and outputs of device series SDC/DHC Switching from SDC to DHCSelection of hydraulic parameter presettings Application Parameter Key/MenuSystem Climate zone Outside temperature disableDesign temperature Summer switch-off Outside temperature riseSystem frost protection Cancelling switch-offOperation without room temperature sensing Operation with room temperature sensing Cycle operationFrost protection function in case of heat generator fault Pump forced operation Start-up protection controlled by weather conditions Heat generator Boiler Heat generator start-up protectionUnlimited start-up protection Conditional minimum limit Heat generator minimum temperature limitMinimum limit based on demand Unlimited minimum limitExternal burner switch-off Heat generator sensor control modeBurner switch-off in case of a faulty heat generator sensor Minimum burner runtime Burner enabling in case of a faulty heat generator sensorSwitching Multi-stage heat generator/Switching differential Mode of operation with switching differential Combined operation for 2-stage heat generators Unlimited enable during start-up relief Time-out during start-up reliefResetting Operation for modulating burners Modulation of P part Xp Modulation of sample time TaModulation of start time Modulation of integral action time TnModulation of runtime Modulation of start power OpenTherm OpenTherm logo Electrical connectionSet values OFF Two measuring points in the combustion chamberExternal heat generator cut-off Dissipation into hot-water tankDischarge to heating circuits Exhaust gas temperature monitoringDisplay of flue gas temperature only Heat generator lock if limit value is exceeded for set timeRecommended setting Burner counter modePara Designation Range Presetti Step Unit Meter Increase Heat generation, heat exchanger, district heating1 On/Off operation of the district heating valve Continuous heat exchanger valve controlPara Designation Range Presetti Step Unit Meter District heating return temperature limit SDC / DHC Para- Designation meter Range Pre Step Unit SettingReturn temperature limit for hot-water loading Hot-water pre-regulator with district heating systems Mode of operation Hot-water pre-control Quick hot-water control New parametersSDC / DHC SDC / DHC Circulation pump control mode Conditional parallel operation for mixed heating circuitsSwitch-off of district heating control Return interval flushingCharging pump CHP Primary pump Boiler circuit pumpReturn increase Return maintenance through controlled feed water addition Bypass pump RBPIndirect return increase Heating curve setting heating curve Recommended settings Heating circuit temperature limit SDC / DHC SDC / DHC Function heating acc. to DIN 4725 Part 4 setting Heating function for floor covering settingHeating circuit constant temperature control Fixed-value controlNo room sensor with the following conditions Heating circuit room factor Switch-on/switch-off optimisation Heating circuit room controllerParameter settings for the switch-on optimisation in the HC Parameter 44 min. jump back temperature Activation of switchParameter 41 switch-on optimisation, 03 adaptation restart On optimisationParameter 46 pre-heating time at 0C Switch-on optimisation with room sensor adaptationSwitch-on optimisation without room sensor Parameter 47 lowering rampRoom setpoint ramp Heating limit functionExample Wall device functionality limitation Mixed heating circuits cooling switch-overHeating circuit room frost protection limit Function Switch-over from heating mode to cooling mode Heating circuit correctionHumidistatic switch-off Cooling with humidistatic switch-offHeating circuit name Access code Room thermostat function maximum room temperature limit Mixed heating circuit control Proportional part Xp Integral action time Tn Actuator runtime Application Adjustment TimeSample time Ta Example Actuator end position function Example Before See also 5.1.2.4 Daytime hot-water temperature button, pgHot-water production Hot-water tank loading SLP Example AfterSDC / DHC SDC / DHC SDC / DHC SDC / DHC Quick hot-water connection in cascaded systems Heating Tank priority no heating demandCirculation pump CIR Electrical heating element ELH Solar switch-on differential Solar/Solid fuel/Buffer Solar functionSolar priority mode buffer setpoint control Solar priority mode disabling of heat generatorSolar priority mode hot water setpoint control Solar parallel operationOperation in buffer priority mode Buffer tank function SDC / DHC SLP PLP SLP SF SLP Buffer HC/HW Buffer control modeHC/HW Buffer control mode Loading control Discharge controlExample Set value OFF Tank loading pump with provision tanks onlySDC / DHC Buffer sensor 2 BS2 Buffer sensor 2 BS2 Buffer loading pump extended running timeSolid-fuel boiler minimum temperature limit Solid fuel functionPrerequisite Heat generator solid-fuel cycle disableTank loading switch-over Solar loading switch-over operation Kspf B Hydraulic buffer relief HBRSetting range OFF, -20 +30 Timer Other system components Global fault message inputGlobal fault message output HEATING, HEATING, Standby External switching modemConnection terminal of variable input 1 2, 3 open Demand contact System information Bus communication Bus address of central device Address Device type AssignmentClock synchronisation Tank control mode tank priority operationHeating circuit demand Examples with multiple control devices Room temperature transmissionFault messages/Status indications MK1 Important note for parameter setting 226 EN2H-0221GE51 R0808 Address CD address Assignment Operation with wall device SDW Address CU address AssignmentAutomatic Mode Heating Lowering Automatic OFF Flashing Control mode/Function Moon LED Clock LED Sun LEDBrief Flashing Flashing OFFOperation with NTC 20K room temperature sensor Extended access authorisation Function of the cascade parameters Switch-off characteristics Control characteristics Delay, enabling, full load in cascade operationGrouping for base and peak loads ANF118-V2.2 specifications Special function characteristicsAutomatic call-up Input Only executed if Emission measurement not for DHCRelay/function test Stage heat generator Modulating modeSingle-stage heat generator 2x single-stage heat generatorsValue Range Meaning DisplayBus test SDC / DHC Fault messages RSC/RS EepromThese fault messages come from automatic stokers and are High Additional fault processingFault type Field Code LOWOperating Key/Menu Parameter Information Fault MessageBasic display/fault stack fault messages Controller time correction Full controller resetSensor calibration Technical data IIISensor resistance values 1 NTC Installation recommendations Mains voltage linesSafety low-voltage lines VE1 2 PTVF1 VE2BZ1 BZ2Log Index SDC / DHC SDC / DHC Automation and Control Solutions