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Siemens Building Technologies

Basic Documentation RVA63.242, RVA53.242

CE1P2373E

Landis & Staefa Division

Description of OEM settings

26.03.2001

5.3 Switching differential of the boiler temperature

Matching the burner to the type of boiler.

The boiler temperature is controlled by a 2-position controller for which a switching
differential can be set.

Setting range

Unit

Factory setting

0...20

°C (K)

8

The setting changes the switching differential of the boiler temperature control.

Entry:

Increase:

Switching differential will become wider
Fewer burner starts and longer burner running times

Decrease:

Switching differential will become smaller
More burner starts and shorter burner running times

With 2-position control, heat is produced at certain intervals. The period of time during
which heat is delivered is dependent upon the boiler mass and the amount of water
contained in the boiler.
The greater the demand for heat, the longer the burner runs at a time.

°C

2371Z23

ON

OFF

w

SD

w

Setpoint

SD

Switching differential of the boiler
Switch-on point
Switch-off point

Benefit

Description

Setting

Effect

Boiler temperature
control

Switching differential

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Содержание RVA53.242

Страница 1: ...Edition 1 3 Controller series B CE1P2373E 26 03 2001 Siemens Building Technologies Landis Staefa Division RVA63 242 and RVA53 242 Boiler and Heating Circuit Controllers Basic Documentation ...

Страница 2: ...2 218 Siemens Building Technologies Basisdokumentation RVA63 242 RVA53 242 CE1P2373E Landis Staefa Division 26 03 2001 ...

Страница 3: ...19 2 3 1 Functional checks 19 2 4 Parameter settings for the end user 23 2 4 1 Overview of end user parameters 24 2 5 Parameter settings for the heating engineer 26 1 1 1 Overview of heating engineer parameters 27 2 6 Parameter settings for the OEM 32 2 6 1 Overview of OEM parameters 33 2 7 Operation 35 2 7 1 Operating elements 35 2 8 Operational faults 37 3 Description of end user settings 39 Use...

Страница 4: ...eating curve slope heating circuit 1 S1 59 3 21 Summer winter changeover temperature of heating circuit 2 THG2 60 3 22 Heating curve slope heating circuit 2 S2 61 Display of actual values 62 3 23 Actual value of room temperature TRx 62 3 24 Actual value of outside temperature TAx 62 Display of burner data 63 3 25 Burner hours run stage 1 tBR1 63 3 25 1 Counting the hours run 63 3 25 2 Average burn...

Страница 5: ...mperature setpoint HK1 80 4 21 Display of nominal room temperature setpoint HK2 81 4 22 Display of room temperature setpoint HK1 TRw 81 4 23 Display of room temperature setpoint HK2 TRw 81 4 24 Display of flow temperature setpoint HK1 TRw 82 4 25 Display of flow temperature setpoint HK2 TVw 82 4 26 Floor curing data HK1 82 Heat generating equipment 83 4 27 Type of heat source 83 4 28 Minimum limit...

Страница 6: ... w circuit 124 Cascade 125 4 59 Changeover of boiler sequence in a cascade 2 x single stage 125 4 60 Release integral for boiler sequence 126 4 61 Reset integral of boiler sequence 127 LPB system 128 4 62 LPB device address 128 4 63 LPB segment address 129 4 64 LPB power supply 129 4 65 Display of LPB power supply 130 4 66 Range of action of central changeover 130 4 67 Automatic summer winter chan...

Страница 7: ... 5 9 2 Impact on modulating loads 157 5 9 3 Temperature time integral 158 5 10 Control of boiler pump 159 Modulating burner 160 5 11 Running time of damper actuator 160 5 12 Proportional band Xp 161 5 13 Integral action time Tn 161 5 14 Derivative action time Tv 161 5 15 Switching differential of damper actuator 162 Maintained boiler return temperature 163 5 16 Maintained boiler return temperature...

Страница 8: ... control 181 5 36 2 D h w temperature control with 2 sensors 182 5 37 Legionella function 183 5 38 Setpoint of legionella function 184 5 39 Discharge protection during d h w heating 184 Service 185 5 40 Continuous display 185 5 41 Software version 185 5 42 Device operating hours 185 6 General control processes 186 6 1 Generation of the boiler temperature setpoint 186 6 2 Maintained boiler return t...

Страница 9: ...02 7 2 1 PPS BMU 202 7 2 2 Multi stage burner 203 7 2 3 Modulating burner 203 7 2 4 Cascade 2 x 1 204 7 2 5 Cascade slave 204 7 3 Plant types 205 7 3 1 Without system pump 205 7 3 2 System pump before d h w 206 7 3 3 System pump after d h w 207 7 3 4 System pump with external heat demand 208 7 3 5 D h w diverting valve 209 7 3 6 Cascade 2 x 1 210 7 4 Supplementary information on the plant types li...

Страница 10: ...ted flow temperature control with room influence 2 separately controlled heating circuits one mixing and or one pump heating circuit or 2 pump heating circuits Quick setback and boost heating Automatic 24 hour heating limit Automatic summer winter changeover Remote operation via digital room unit The building s thermal dynamics are taken into consideration Automatic adjustment of the heating curve...

Страница 11: ...parameter settings and data logging D h w heating with a charging pump or diverting valve D h w heating with one or 2 sensors Reduced setpoint of d h w temperature Selectable d h w program Integrated legionella function Selectable priority for d h w heating Adjustable boost of the d h w charging temperature Automatic d h w push D h w demand with a sensor or thermostat Protection against dischargin...

Страница 12: ...functional room unit QAC31 Outside sensor NTC 600 QAC21 Outside sensor Ni 1000 QAZ21 Immersion sensor with cable QAD21 Clamp on temperature sensor Pt1000 Flue gas sensor third party product Collector sensor AGP2S 02M LPB 2 poles Violet 1 AGP2S 02G Room unit 2 poles blue AGP2S 06A Sensor 6 poles white AGP2S 04G Sensor 4 poles grey AGP2S 04C Sensor 4 poles yellow AGP3S 02D Mains 2 poles black AGP3S ...

Страница 13: ...heating zones creation of extensive systems With or without d h w heating Heating boilers with 1 or 2 stage oil or gas burners Heating boilers for modulating oil or gas fired boilers Gas boilers with BMU Boiler Management Unit Solar collectors 1 5 Product liability The products may only be used in building services plant and applications as described above When using the products all requirements ...

Страница 14: ...n all sides The controller is designed conforming to the directives for safety class II mounted in compliance with these regulations Power to the controller may be supplied only after it is completely fitted in the cut out If this is not observed there is a risk of electric shock hazard near the terminals and through the cooling slots The controller may not be exposed to dripping water Permissible...

Страница 15: ...lide the controller into the panel cut out without applying any force è Note Do not use any tools when inserting the unit into the cut out If it does not fit check the size of the cut out and the position of the fixing levers 2373Z07 Tighten the 2 screws on the front of the controller è Note Tighten the screws only slightly applying a torque of maximum 20 Ncm When tightening the screws the fixing ...

Страница 16: ...ses The mechanical mounting facility makes it possible to arrange several controllers in a row in one cut out In that case it is merely necessary to have a wider panel cutout Also refer to Dimensions in Index 2373Z09 2 1 5 Orientation To avoid overtemperatures inside the controller the inclination may be no more than 30 and there must be a clearance of at least 10 mm above and below the cooling sl...

Страница 17: ...nsor and mains cables may not be run in the same duct 2 2 2 Wiring When using prefabricated cables with connectors the electrical installation is very straightforward owing to coding Rear of controller Connection terminals of RVA63 242 2373A01 4 M B8 B6 M B7 H1 6 5 4 M 2 1 M M B2 B3 M B1 B9 MD A6 MB DB F2 F N N Y1 Y2 F6 Q2 2 3 F 2 3 4 L F 2 F 4 5 F 2 3 L F4 K4 F5 K5 E1 F1 K6 3 M 1 4 3 M 1 B31 H2 B...

Страница 18: ...ure sensor thermostat M Ground sensors Not used B9 Outside sensor MD Ground PPS room unit BMU AGP2S 02G blue A6 PPS room unit BMU MB Ground bus LPB AGP2S 02M violet DB Data bus LPB Terminal Terminals Connector Color Not used Not used Not used Not used AGP3S 04F orange K7 Multi functional output Q2 Circulating pump mixing heating circuit F6 Phases Q2 and K7 Y2 Mixing valve CLOSED AGP3S 03K green Y1...

Страница 19: ... This will take you to the programming mode Heating engineer and at the same time to the output test 3 Press the or button repeatedly which will take you one test step further Test step 0 All outputs are switched according to normal control operation Test step 1 All outputs are deactivated Test step 2 Burner stage 1 K4 is activated Test step 3 Burner stages 1 and 2 K4 K5 are activated Test step 4 ...

Страница 20: ...ion RVA63 242 RVA53 242 CE1P2373E Landis Staefa Division Handling 26 03 2001 b c 2373Z03 a a The pointer below the symbol indicates the output activated b The number indicates the current test step c The number indicates the selected setting line Display ...

Страница 21: ... Test step 3 Display of flow temperature acquired with sensor HK1 B1 Test step 4 Display of the outside temperature acquired with sensor B9 Test step 5 Display of room temperature acquired with sensor A6 Test step 6 Display of the return temperature acquired with sensor B7 Test step 7 Display of flue gas collector temperature acquired with sensor B8 B6 Test step 8 Buffer temperature 1 acquired wit...

Страница 22: ...cumentation RVA63 242 RVA53 242 CE1P2373E Landis Staefa Division Handling 26 03 2001 b c 2373Z04 a a The number indicates the current test step b Displayed value of the temperature measured c The number indicates the selected setting line Display ...

Страница 23: ...the line selection buttons to select the required line The parameter list on the next 2 pages contains all available lines 3 Press the or button to set the required value The setting will be stored as soon as you leave the programming mode or change to another line The parameter list on the next 2 pages contains all settings that can be made 4 By pressing any of the operating mode buttons you leav...

Страница 24: ...riod 24 00 h min 10 min 06 00 14 14 Switch off time 1st period 24 00 h min 10 min 22 00 15 15 Switch on time 2nd period 24 00 h min 10 min 16 16 Switch off time 2nd period 24 00 h min 10 min 17 17 Switch on time 3rd period 24 00 h min 10 min 18 18 Switch off time 3rd period 24 00 h min 10 min Time switch program 3 d h w 19 19 Pre selection of weekday 1 7 7 day block 1 7 Individual days 1 7 1 7 Day...

Страница 25: ...ds 50 50 C 0 5 Heat source 35 35 Burner hours run stage 1 or BMU tBR1 0 65535 h 1 0 36 36 Burner hours run stage 2 tBR2 Output K5 0 65535 h 1 0 37 37 Number of burner starts stage 1 0 65535 1 0 38 38 Number of burner starts stage 2 0 65535 1 0 Standard values 39 39 Standard times for switching programs 1 2 3 lines 6 11 13 18 and 20 25 To activate press the and buttons simultaneously for 3 seconds ...

Страница 26: ... directly to the programming mode Heating engineer 3 Press the line selection buttons to select the required line The parameter list on the next 2 pages contains all available lines 4 Press the or button to set the required value The setting will be stored as soon as you leave the programming mode or change to another line The parameter list on the next 2 pages contains all settings that can be ma...

Страница 27: ...6 8 Buffer storage tank sensor 1 B4 9 Display of input H1 H1 10 Display switching status input E1 E1 0 10 1 0 53 53 Display of plant type 1 150 1 Actual values 55 55 Actual value of flow temperature TVx Input B1 0 140 C 1 56 56 Actual value of boiler temperature TKx Input B2 B4 0 140 C 1 57 Actual value of common flow temperature 0 140 C 1 58 58 Actual value of cascade return temperature 0 140 C 1...

Страница 28: ...ring dates HK1 Day Flow temperature setpoint 0 32 0 95 C 1 Heat source 80 80 Type of heat source 0 No heat generation or PPS BMU 1 Single stage burner 2 2 stage burner 2 Modulating burner 3 position air damper actuator 4 Modulating burner 2 position air damper actuator 5 Cascade 2 single stage burners 0 5 1 2 81 81 Min limitation of boiler temperature TKmin TkminOEM Line 1 OEM Tkmax Line 2 OEM TKm...

Страница 29: ...ng on heating circuit 1 1 Acting on heating circuit 2 2 Acting on heating circuits 1 and 2 0 2 1 0 105 105 Min limitation of flow temperature setpoint TVmin heating circuit 1 TVmax Line 107 8 TVmax C 1 8 106 106 Min limitation of flow temperature setpoint TVmin heating circuit 2 TVmax Line 108 8 TVmax C 1 8 107 107 Max limitation of flow temperature setpoint TVmax heating circuit 1 Tvmin Line 105 ...

Страница 30: ...D h w priority 0 Absolute mixing and pump heating circuit 1 Shifting mixing and pump heating circuit 2 None parallel 3 Mixing heating circuit shifted pump heating circuitabsolute 0 3 1 1 128 128 Controlling element for d h w 0 Charging pump 1 Diverting valve 0 1 1 0 129 Separate d h w circuit 0 Off 1 ON 0 1 1 0 Cascade 130 130 Changeover of boiler sequence in a cascade 2 x single stage No automati...

Страница 31: ...2 Temperature level solar charging strategy Inactive 20 130 Charging level 20 130 C K 1 163 Max solar charging temperature 20 130 C K 1 80 164 164 Demand for heat with reduced d h w setpoint 0 No buffer storage tank 1 Yes 0 1 1 1 Multi functional inputs H1 H2 B31 B41 170 170 Input H1 0 Changeover of operating mode of all HK and d h w 1 Changeover of operating mode of all HK 2 Min flow temperature ...

Страница 32: ...code has been entered incorrectly the display will change to the Parameter settings for the heating engineer 4 Press the line selection buttons to select the required line The parameter list on the next 2 pages contains all available lines 5 Press the or button to set the required value The setting will be stored as soon as you leave the programming mode or change to another line The parameter lis...

Страница 33: ...2 1 1 10 10 Protective boiler start up 0 No 1 Yes 0 1 1 1 12 12 Control of boiler pump 0 Max temperature requisition 1 Parallel to burner operation 0 1 1 0 13 13 Air damper running time s 7 5 480 s 60 14 14 Proportional band Xp 1 200 C K 1 20 15 15 Integral action time Tn 10 500 s 1 150 16 16 Derivative action time Tv 0 30 s 0 25 4 5 17 17 Switching differential air damper actuator 0 20 C K 1 2 20...

Страница 34: ...aption sensitivity 1 ZAF1 1 15 1 15 40 40 Adaption sensitivity 2 ZAF2 1 15 1 15 41 41 P band mixing valve Xp 1 100 C K 1 32 42 42 Integral action time mixing valve Tn 10 873 s 1 120 43 43 Actuator running time mixing valve 30 873 s 1 120 D h w 50 50 Max nominal setpoint of d h w temperature TBWmax 8 80 C 1 60 51 51 Switching differential of d h w temperature SDBW 0 20 C K 1 5 52 52 Legionella func...

Страница 35: ...nt of room temperature setpoint Setting buttons Parameter settings Line selection buttons Parameter settings Display Display of actual values and settings Operating mode buttons heating circuit Operating mode changes to Automatic operation Continuous operation Stand by Operating mode button d h w D h w heating ON OFF Function button with LED for manual operation Activation of manual operation Func...

Страница 36: ...1P2373E Landis Staefa Division Handling 26 03 2001 a b c BUS ECO 2373Z02 d a Symbols indication of operating state with the black pointers b Display during normal control mode or when making settings c Programming line when making settings d Heating program of current day Display ...

Страница 37: ... test Check wiring of the sensors input test Quick setback or the automatic 24 hour heating limit is active Check the settings Heating circuit pump does not run Is the right type of plant displayed setting line 53 Check wiring and fuse output test Check wiring of the sensors input test Check the settings Burner does not switch on Press burner s reset button Check the fuses Wiring to the controllin...

Страница 38: ...unction properly Check all parameters based on the setting instructions Heating engineer and the operating instructions End user Carry out the input testCarry out the output testCheck the electromechanical control thermostat TR and the manual reset safety limit thermostat STB Frost protection for the plant does not function at all or does not function correctly Check correct functioning of the bur...

Страница 39: ... the holiday function and when the remote telephone switch is activated Operating mode Designation Effect of selected operating mode Automatic operation Heating according to the time program lines 5 to 11 Temperature setpoints according to the heating program Protective functions active Changeover on the room unit active Automatic summer winter changeover ECO functions and automatic 24 hour heatin...

Страница 40: ...utton will not be affected Minimum setpoint of flow temperature Line 170 2 or 174 1 Selected HC operating mode button flasheswhen contact H1 or H2 is closed D h w operating mode button will not be affected Heat demand DC 0 10 V Line 170 4 Selected HC operating mode button flasheswhen H1 demand is valid D h w operating mode button will not be affected Central stand by switch Line 147 1 HC operating...

Страница 41: ...utton dark D h w is not being heated Frost protection remains active however and prevents the storage tank temperature from falling below a certain level D h w heating ON button illuminated The d h w is heated according to the settings made The following settings affect d h w heating and must be checked to ensure proper functioning Setting Setting Time switch program 3 19 25 Nominal setpoint of d ...

Страница 42: ...0 12 14 16 18 20 22 24 26 C 2373Z10 Room temperature setpoint setting ranges 27 Setting Reduced room temperature setpoint 28 Setting Frost protection setpoint of the room temperature When the nominal room temperature setpoint is active the rooms will be heated according to the adjustment made with the setpoint knob Effect in the various operating modes Operating mode Effect of knob adjustment Adju...

Страница 43: ...t 3 C controller s nominal room temperature setpoint Adjustment made with the controller s setpoint knob 20 C Adjustment made with the controller s setpoint knob 2 C Resulting setpoint 22 C The QAA70 room unit has an absolute setpoint adjustment using a line which replaces the setpoint adjusted with the controller s setpoint knob provided automatic mode has been selected on the controller In addit...

Страница 44: ...ting mode previously selected When the LED in the chimney sweep button is lit the chimney sweep function is active Multistage burner Burner stages 1 and 2 will be switched on Modulating burner Maximum heat output 2 x 1 cascade Both burners will be switched on BMU The chimney sweep button has no effect But the forced signals will be generated as described below if the chimney sweep function on the ...

Страница 45: ...ng mode previously selected As soon as manual operation is activated the following values are used for the heat demand For space heating Maximum limitation of flow temperature setpoint lines 107 and 108 For the d h w Nominal setpoint of d h w temperature line 26 setpoint boost of d h w flow temperature line 126 For the minimum flow temperature setpoint and heat demand DC 0 10 V Minimum setpoint of...

Страница 46: ...er wintertime in Index The time of day can be set from a remote location via the bus system provided clock operation is appropriately set Also refer to clock mode in Index 3 6 Time of day Setting range Unit 00 00 23 59 Hour Minute The controller s clock time is set in agreement with the correct time This setting is important to make certain the controller s heating program will operate correctly D...

Страница 47: ...ller will be based on this setting This setting of date is important to make certain the controller s holiday program and summer wintertime changeover will operate correctly 3 9 Year Setting range Unit 1999 2099 Year The year of the controller will be based on this setting This setting of year is important to make certain the controller s holiday program and summer wintertime changeover will opera...

Страница 48: ...s active when selecting automatic mode Setting range Unit 1 7 1 7 7 day block Individual days This setting must be made before the switching times are entered For every day on which other switching times shall apply preselection of the individual day with subsequent entry of the switching times must be repeated This setting is used to select either the whole week 1 7 or individual days 1 7 7 day b...

Страница 49: ...ns Building Technologies Basic Documentation RVA63 242 RVA53 242 CE1P2373E Landis Staefa Division Description of end user settings 26 03 2001 0 2 4 6 8 10 12 14 16 18 20 22 24 h Sa Mo Di Mi Do Fr So 2373Z12 Example ...

Страница 50: ...the correct order At the times entered the program will switch to the respective temperature setpoints The table below shows at what times the setpoints will be activated Entry Switching point inactive 00 00 24 00At the time entered heating to the respective temperature is ensured Line Switchingpoint Temperature setpoint Standard Switch on time period 1 Setpoint of knob 06 00 Switch off time perio...

Страница 51: ...a preselection of the weekdays or the 7 day block to set the switching times for time switch program 2 The heating program thus set becomes active with automatic mode Setting range Unit 1 7 1 7 7 day block Individual days This setting must be made before the switching times are entered For every day on which other switching times shall apply preselection of the individual day with subsequent entry...

Страница 52: ...der At the times entered the program will switch to the respective temperature setpoints The table below shows at what times the setpoints will be activated Entry Switching point inactive 00 00 24 00At the time entered heating to the respective temperature is ensured Line Switchingpoint Temperature setpoint Standard Switch on time period 1 Setpoint of knob 06 00 Switch off time period 1 Reduced se...

Страница 53: ...lock used for the switching time settings of the d h w time switch program The time switch program thus set is activated by pressing the d h w operating mode button Setting range Unit 1 7 1 7 7 day block Individual days This setting must be made before the switching times are entered For every day on which other switching times shall apply the preselection of the individual day with subsequent ent...

Страница 54: ...s shall be entered The controller then makes a check to ensure the entries have been made in the correct order At the times entered the program will switch to the respective temperature setpoints The table below shows at what times the setpoints will be activated Entry Switching point inactive 00 00 24 00At the time entered heating to the respective temperature is ensured Line Switchingpoint D h w...

Страница 55: ...ature setpoint during normal d h w operation will be changed 0 10 20 30 40 50 60 70 80 90 100 C 2373Z13 26 Setting Nominal setpoint of d h w temperature 120 Setting Reduced setpoint of d h w temperature 50 OEM Setting Maximum nominal setpoint of d h w temperature D h w heating has 2 different setpoints that can be used Nominal setpoint of the d h w temperature It ensures d h w temperature required...

Страница 56: ...6 TRF Room temperature for frost protection setting on line 28 TRN Nominal room temperature setpoint to be adjusted with the setpoint knob If the required temperature level cannot be set the adjustment made with the setpoint knob may be too low It is not possible to set a value above the adjustment made with the setpoint knob 0 2 4 6 8 10 12 14 16 18 20 22 24 26 C 2373Z10 Room temperature setpoint...

Страница 57: ... below freezing Setting range Unit Factory setting 4 TRRw C 10 TRRw Reduced room temperature setpoint setting one line 27 This setting will change the frost protection setpoint of the room temperature In operating mode the room temperature is prevented from falling below a certain level This means that the frost protection setpoint of the room temperature will be maintained 0 2 4 6 8 10 12 14 16 1...

Страница 58: ... Winter operation will start later Summer operation will start earlier The summer winter changeover temperature can act either locally or on other devices in the system also refer to section Effect of summer winter changeover temperature Also refer to effect of summer winter changeover function in Index This function only acts in automatic mode The display will show ECO To determine changeover the...

Страница 59: ...d Increase The flow temperature will be raised when the outside temperature drops Decrease The flow temperature will be raised less when the outside temperature drops This setting also has an effect on the generation of the type of plant displayed on line 53 The switching on and off of the heating circuit through the setting or a value changes the plant configuration accordingly Using the heating ...

Страница 60: ...way serves as a setpoint request for generating the boiler temperature setpoint Also refer to generation of boiler temperature setpoint in Index 3 21 Summer winter changeover temperature of heating circuit 2 THG2 Setting range Unit Factory setting 8 30 0 C 17 For detailed information about changeover refer to Summer winter changeover temperature heating circuit 1 THG1 Flow temperature setpoint Set...

Страница 61: ...ection for the boiler and d h w remains active 2 5 40 0 All functions of heating circuit 2 will be activated Increase The flow temperature will be raised when the outside temperature drops Decrease The flow temperature will be raised less when the outside temperature drops This setting also has an effect on the generation of the type of plant displayed on line 53 The switching on and off of the he...

Страница 62: ...on this line No valid room sensor connected 3 24 Actual value of outside temperature TAx Display Unit 50 0 50 0 C The temperature measured with the outside sensor will automatically be displayed on this line 0 0 C Sensor with open circuit or no sensor connected 0 0 C Sensor with short circuit Note For more detailed information about resetting the attenuated outside temperature to the actual room t...

Страница 63: ... from output E1 e g the fuel valve The input signal voltage must be AC 230 V Each time 2 full operating hours are registered the new value will be written to non volatile memory Only full hours are displayed and no minutes This means that if the display is checked again after a short period of time it may still show the previous reading if the burner has not yet completed another 2 operating hours...

Страница 64: ...urs are displayed and no minutes This means that if the display is checked again after a short period of time it may still show the previous reading if the second burner stage has not yet completed another 2 operating hours 3 27 Number of burner starts stage 1 Auxiliary value for ascertaining the average burner hours run Display Unit 0 65535 Number The number of starts of burner stage 1 will autom...

Страница 65: ... Number The number of starts of burner stage 2 will automatically be displayed on this line The number of starts of burner stage 2 are counted with the signal received from output K5 But this is the case only when voltage is present at E1 Display of the number of burner starts is updated each time the burner is started up The number of burner starts is written to non volatile memory at 2 hour inte...

Страница 66: ...program is activated as soon as the display changes to 1 Display Unit 0 1 In that case the individual settings will be lost The time settings for the time switch programs will be overwritten with standard values This applies to the following settings Switching times of time switch program 1 Switching times of time switch program 2 Switching times of time switch program 3 d h w Switchingpoint Setti...

Страница 67: ...on space heating and d h w heating But the holiday function remains activated in the background This means that if automatic mode is selected again the holiday function will be resumed The d h w mode can be changed while the holiday function is active When the holiday period is activated flashes The d h w operating mode button flashes depending on the setting made on line 123 and when d h w mode i...

Страница 68: ...242 RVA53 242 CE1P2373E Landis Staefa Division Description of end user settings 26 03 2001 3 30 Holiday period heating circuits 1 and 2 Display Unit 1 8 3 31 Start and end of holiday period heating circuits 1 and 2 Display Unit 01 01 31 12 Day Month Setting Setting ...

Страница 69: ...n this operating line Fault messages cannot be acknowledged They disappear only if the fault has been rectified The display shows the error code If there is no fault message or if no BMU is connected there will be no display The meaning of the different error codes depends of the make of BMU used For this reason no overview of all the different error codes can be given here For details please refe...

Страница 70: ...f additional faults are present they will be stored as soon as storage capacity becomes available Faults that can occur on the controller Display Description of fault Blank No fault 10 Outside sensor 20 Boiler temperature sensor 28 Flue gas temperature sensor 30 Flow temperature sensor 40 Return temperature sensor 50 D h w temperature sensor connected to B3 52 D h w temperature sensor connected to...

Страница 71: ...municated Display Description of fault 20 00 01 Fault with address of the faulty device The first 2 digits give the error code 20 The next 2 digits indicate the segment address of the faulty device 00 The last 2 digits indicate the device address of the faulty device 01 Example of a display after a fault has occurred 2373Z22 Faulty devices Display ER indicates that a fault has occurred Press to in...

Страница 72: ...ecked The test sequence is arranged in the form of a ring counter This means it can be run through either forward or backward by pressing the buttons For more information refer to commissioning in Index Test step 0 All outputs are switched according to normal control operation Test step 1 All outputs are deactivated Test step 2 Burner stage 1 K4 is activated Test step 3 Burner stages 1 and 2 K4 K5...

Страница 73: ...tons For more information refer to commissioning in Index Test step 0 Display of boiler temperature acquired with sensor B2 Test step 1 Display of d h w temperature acquired with sensor B3 Test step 2 Display of input B31 H2 B41 according to the function selected on line 174 C or ooo or Test step 3 Display of flow temperature acquired with sensor HK1 B1 Test step 4 Display of outside temperature a...

Страница 74: ...s the current plant type The plant type is displayed in the form of a number which corresponds to the plant diagram Refer to section Application examples for the various types of plant with the required peripheral devices The following factors have an impact on the generation of the type of plant Connecting a d h w temperature sensor to B31 H2 B41 Connecting a d h w temperature sensor or thermosta...

Страница 75: ...tically be displayed on this operating line In general no setting can be made with the setting buttons but in certain cases they can be used for making a reset No valid sensor connected 4 4 Actual value of flow temperature B1 Temperature acquired with sensor B1 in the flow of the mixing heating circuit is a criterion for the control of the mixing valve Display Unit 0 140 C 4 5 Actual value of boil...

Страница 76: ... of terminal B31 H2 B41 will be adopted if available 4 9 Actual value 2 bottom of buffer storage tank temperature Buffer storage tank temperature 2 is used as a criterion for charging with solar energy Display Unit 0 140 C To be used as buffer storage tank temperature sensor 2 input B31 H2 B41 must be appropriately defined Buffer storage tank temperature 2 corresponds to the value of the sensor co...

Страница 77: ... the display can be reset to the current value For that purpose both buttons must be pressed together for 3 seconds The value is reset as soon as the display stops flashing In the event of an open circuit or short circuit of the sensor the display maintains the maximum temperature value last measured This value can be reset after rectification of the fault To be used as a flue gas temperature sens...

Страница 78: ...trollers only one outside sensor is required It can be connected to any of the controllers to deliver its signal via the bus system The controllers to which no sensor is connected adopt the outside temperature signal via the bus system from a controller to which a sensor is connected Display Unit 00 01 14 16 No signal Segment and device address The address of the outside sensor that currently deli...

Страница 79: ...on helps better understand the control sequences taking place in the controller No setpoint is displayed when there is no heat demand from the consumers 4 18 Display of common flow temperature setpoint Display of common flow temperature setpoint Better overview of the plant s operating state The current common flow temperature setpoint will automatically be displayed on this line Display Unit 0 14...

Страница 80: ...heating cycles per day operating line 124 Legionella function ON OFF operating line 52OEM Legionella setpoint operating line 53OEM No value is displayed in the following situations No d h w heating available D h w heating is switched off button for d h w heating OFF or holidays 4 20 Display of nominal room temperature setpoint HK1 Information about the nominal room temperature setpoint Displays th...

Страница 81: ...od normal operation reduced operation Display Unit 0 35 C When selecting the operating line the current room temperature setpoint is displayed depending on the operating mode and the time switch program that is a selection combination of the following parameters Room temperature setpoint knob Reduced setpoint of room temperature operating line 27 Frost protection setpoint of room temperature opera...

Страница 82: ...the following situations No heating circuit available ECO function active summer winter changeover automatic 24 hour heating limit Quick setback active Room temperature limitation active 4 25 Display of flow temperature setpoint HK2 TVw Function and effect of this setting are basically the same as with setting 75 described above Display Unit 0 140 C 4 26 Floor curing data HK1 Information about the...

Страница 83: ...tage burners 4 27 1 No heat generation or BMU If the controller is used in combination with a BMU only a certain part of the heat source functions are active such as protective boiler start up In that case boiler temperature control by the burner must be fully ensured by the BMU If no BMU is connected the heat source functions are no longer active 4 27 2 Multi stage burners Generation of the boile...

Страница 84: ...e change from the first burner stage to cycling occurs Maximum limitation of the boiler temperature minimum burner running time cascade operation and d h w separation circuit are handled analogous to 2 stage burner operation TKw TKw 1 2 SDK TKw 1 2 SDK TKw SDK TKx C t h 1K 1K GSt Mod a b a c d d d 2373Z58 Release integral for boiler sequence a Release integral modulation release integral second st...

Страница 85: ...urrent boiler temperature setpoint If the boiler temperature stays in the neutral zone for more than 16 seconds the neutral zone becomes active and positioning pulses are no longer delivered As soon as the boiler temperature leaves the neutral zone again control is resumed If the boiler temperature does not stay long enough in the neutral zone positioning pulses will also be delivered within the n...

Страница 86: ...ing on line 02OEM The setting ensures that the boiler temperature will not fall below the adjusted minimum level 0 10 20 30 40 50 60 70 80 90 100 120 TV max min akt C 2373Z16 56 Actual value of the boiler temperature 81 Minimum limitation of the boiler temperature setpoint 2 OEM Maximum limitation of the boiler temperature setpoint 1 OEM Lowest minimum limitation of the boiler temperature setpoint...

Страница 87: ... w pump overrun acts exclusively on the d h w charging pump Q3 1 ON D h w pump overrun acts on both the d h w charging pump Q3 and heating circuit pump 2 Q6 4 29 1 Extra heating for the bathroom Extra heating for the bathroom makes use of the d h w pump overrun It is used especially during intermediate seasons by supplying surplus heat to the bathroom in addition to normal bathroom heating Surplus...

Страница 88: ...llowing functions depending on the setting made 0 No function 1 Heating circuit pump 2 2 System pump for heating circuits only located after the d h w storage tank 3 System pump for the heating circuits and for d h w located before the d h w storage tank 4 System pump with external demand for heat 5 D h w circulating pump 6 Electric immersion heater for d h w 7 Solar pump 8 Pump H1 9 Boiler pump 1...

Страница 89: ...the heating circuits calls for heat If there is no demand for heat the pump will be deactivated followed by overrun 4 30 3 System pump heating circuits and d h w The pump connected to terminal K6 serves as a system pump which can be used as a heat supplier for other heating circuits and for the d h w storage tank Hydraulically it must be located after the d h w storage tank The system pump is acti...

Страница 90: ...button remains fully active Hence for the d h w to be heated during that period of time the operating mode button for d h w must be pressed To ensure a smooth transition of d h w heating when changing to summer operation the boiler charges the d h w storage tank until 24 00 hrs on the day of change to avoid potential interruptions caused by utility locking periods 4 30 7 Solar pump When using a so...

Страница 91: ...ontrol of the bypass pump can be selected either parallel with the burner or according to the measured return temperature Also refer to control of the bypass pump in Index 4 30 11 Alarm signal If an error occurs either locally or in the system leading to a display on error line 50 the alarm relay will signal it The contact is closed with a delay of 2 minutes When the error is corrected that is whi...

Страница 92: ...ump has an overrun time of one minute which in the case of overtemperature protection is extended by the setting Pump overrun time With cascade 2 x single stage and a modulating burner this setting line is inactive since in this application K7 is fixed and controlled as the boiler pump or as air damper fully closed 4 31 1 Heating circuit pump 2 The pump connected serves as a second heating circuit...

Страница 93: ...heating has been switched on with the operating mode button Since the function depends on automatic summer winter changeover changeover to d h w heating with the electric immersion heater takes place only in heating circuit operating mode Automatic operation and in Stand by In heating circuit operating mode Continuous operation the boiler continues to deliver the amount of heat required Hence this...

Страница 94: ... demand for heat at input H1 it is possible to serve an air heater or similar 4 31 6 Boiler bypass pump The pump connected serves as a boiler bypass pump for maintaining the boiler return temperature Control of the bypass pump can be selected either parallel with the burner or according to the measured return temperature Also refer to control of the bypass pump in Index 4 31 7 Alarm signal If an e...

Страница 95: ...Solar in buffer storage tank To ensure proper functioning the location of the sensors in the storage tank must be observed Solar for d h w B3 at the top in the d h w storage tank B31 at the bottom in the d h w storage tank Solar for buffer storage tank B4 at the top in the buffer storage tank B41 at the bottom in the buffer storage tank 4 33 Sensor input B8 B6 Selectable use of sensor Sensor input...

Страница 96: ...g the value entered all room temperature setpoints will be appropriately raised or lowered This allows the room temperature setpoints to be matched to the effective room temperatures If a nominal room temperature setpoint of 20 C adjusted on the controller always produces a room temperature of 22 C displace the heating curve downward by 2 C Each setpoint readjustment be it via the setting value or...

Страница 97: ...tivate the effect of room temperature deviations on the temperature control Entry 0 Room influence inactive The measured room temperature will not affect temperature control 1 Room influence active The measured room temperature will affect the temperature control Room influence means Deviations of the actual room temperature from the setpoint are acquired and taken into account by temperature cont...

Страница 98: ...r Pumps are switched on and off less often Room temperature varies within a wider band The room temperature sensor must be active This function only acts in automatic mode The display will show ECO With pump heating circuits the amount of heat supplied is controlled by switching the pumps on and off This is accomplished with 2 position control by means of the room temperature s switching different...

Страница 99: ...room unit affect the selected heating circuits depending on the settings made Entry 0 Impact on heating circuit 1 Changing the operating mode or activating the holiday function on the room unit affects exclusively heating circuit 1 1 Impact on heating circuit 2 Changing the operating mode or activating the holiday function on the room unit affects exclusively heating circuit 2 2 Impact on heating ...

Страница 100: ...t 2 2 Impact on heating circuits 1 and 2 The room unit values affect exclusively heating circuits 1 and 2 It should be considered that the room in which the room unit is installed also is the reference room for the room temperature influence 4 38 1 Examples of room unit assignments In the case of plants with two heating circuits and one room unit it may be advisable to choose a separate assignment...

Страница 101: ...e 0 0 Simultaneous change of the operating mode is possible however Plant type Location of heating circuits Line 103 Line 104 21 22 23 24 Not in the same space 2 0 The heating circuits are located in the same space Comfort control is provided by the faster reacting radiators This means that the room unit values shall only act on heating circuit 2 Plant type Location of heating circuits Line 103 Li...

Страница 102: ...0 40 50 60 70 80 90 100 TV max min akt C 2373Z15 TVw TVw Current flow temperature setpoint 65 Minimum limitation of the flow temperature setpoint 70 Maximum limitation of the flow temperature setpoint If the flow temperature setpoint demanded by the heating circuit reaches the minimum limit and the outside temperature rises the flow temperature setpoint will be maintained at that limit in other wo...

Страница 103: ...ded as a safety function as required with underfloor heating systems for example 0 10 20 30 40 50 60 70 80 90 100 TV max min akt C 2373Z15 TVw TVw Current flow temperature setpoint 105 Minimum limitation of the flow temperature setpoint 107 Maximum limitation of the flow temperature setpoint If the flow temperature setpoint demanded by the heating circuit reaches the maximum limit and the outside ...

Страница 104: ...0 Optimum start control switched on 4 43 1 Optimum start control Optimum start control acts with or without room influence The maximum forward shift can be set with parameter Maximum forward shift with optimum start control range 0 6 h This parameter can also be used to switch optimum start control off setting 0 During non occupancy hours the heating is maintained at the reduced level Towards the ...

Страница 105: ...h20 6h00 10 0 0h50 1h50 2h40 3h40 4h30 0 0 0h30 1h00 1h30 2h00 2h30 10 0 0 0h10 0h10 0h20 0h20 tE TAgem Composite outside temperature tE Forward shift KON Parameter for quick setback and optimum start control without room influence KON 0 Function deactivated Note KON also acts on quick setback Small KON For light building structures that can be heated up fairly quickly Large KON For heavy well ins...

Страница 106: ... shift can be set with parameter Maximum forward shift with optimum stop control range is 0 6 h This parameter can also be used to switch optimum stop control off setting 0 During occupancy hours the heating is maintained at the nominal level Towards the end of the occupancy time the control switches to the reduced level Optimization calculates the changeover time such that at the end of occupancy...

Страница 107: ...oom temperature changes at different rates depending on the building s thermal storage capacity The above setting ensures that the generation of the composite outside temperature will be matched to the type of building construction Also refer to Composite outside temperature in section Functions without settings Entry 0 Heavy building structures The room temperature will respond slower to outside ...

Страница 108: ...om temperature deviations outside temperature characteristics and adaption sensitivity To achieve optimum adaption the following situations should occur as rarely as possible especially after commissioning since this would reset certain calculations required for the adaption Manual readjustment of heating curve press plus minus buttons Power failure Heating curve set to Changes to the room tempera...

Страница 109: ...stem to different types of boilers and plant conditions The locking signal gain is a final adjustment of the locking signal which leads to a restriction of the mixing valve It is the result of a number of integrals such as shifting d h w priority Setting range Unit Factory setting 0 200 100 The gain is adjustable between 0 and 200 The setting changes the response of the mixing heating circuits to ...

Страница 110: ...ng function maintains the flow temperature at a predefined temperature profile with the help of the mixing valve Setting range Unit Factory setting 0 3 0 Selection of a temperature profile activates the floor curing function and the heating circuit ensures the preset flow temperatures 0 Inactive 1 Functional heating 2 Floor curing heating 3 Functional and floor curing heating 4 48 1 Temperature pr...

Страница 111: ...day is called day 0 and adopts the flow temperature value of day 1 The flow temperature changes dictated by the temperature profile always take place at midnight When the floor curing function is activated the mixing valve ensures that the flow temperature dictated by the temperature profile will be maintained This means that protective boiler start up or d h w heating with absolute or shifting pr...

Страница 112: ...ting range Unit Factory setting 8 TBWw C 40 TBWw Nominal setpoint of the d h w temperature setting on line 26 The temperature setpoint during reduced d h w operation will be changed 0 10 20 30 40 50 60 70 80 90 100 C 2373Z13 26 Setting Nominal setpoint of the d h w temperature 120 Setting Reduced setpoint of the d h w temperature 50 OEM Setting Maximum nominal setpoint of d h w temperature D h w h...

Страница 113: ...heating at the nominal setpoint is released Outside this period of time the reduced d h w setpoint applies There is one exception function d h w push Release of d h w heating at the nominal setpoint takes place when using the following settings 0 24 hours per day 1 According to the time switch program with forward shift heating circuit 2 According to the local time switch program 3 d h w The frost...

Страница 114: ...ating program it is also possible to select the number of charging cycles per day This also includes the forward shift of the switch on times Also refer to d h w heating in Index 0 6 12 24 5 h 2377Z16 16 17 4 50 3 Operation according to the local time switch program 3 d h w Setting 2 For d h w heating time switch program 3 d h w of the local controller is taken into account The set switching times...

Страница 115: ...ogram 2 setting 0 The d h w circulating pump K6 K7 is switched at the times of Time switch program 2 lines 12 18 It is thus possible to operate the circulating pump only during individually set times of usage 4 51 2 According to d h w program line 121 setting 1 The d h w circulating pump K7 is switched according to the charging times of the selected d h w program line 81 It is thus possible to ope...

Страница 116: ...ating 0 Local heating circuit D h w heating according to the time switch program of the local heating circuit 1 All heating circuits in the segment D h w heating according to the time switch programs of the segment heating circuits 2 All heating circuits in the LPB system D h w heating according to the time switch programs of the system heating circuits If a room unit triggers holiday mode the eff...

Страница 117: ... section D h w heating program in Index Entry 0 Once per day with a forward shift of 2 5 hours 1 Several times per day with a forward shift of 1 hour 4 53 1 Once per day with a forward shift of 2 5 hours Setting 0 The number of d h w charging cycles at the nominal temperature is limited to one per day in which case the switch on point is shifted forward by 2 5 hours With this setting the switch on...

Страница 118: ...rature sensor The controller calculates the switching points with the respective switching differential as a function of the d h w temperature setpoint entered Sensor line with a short circuit Fault status signal Measuring signal present d h w according to setpoint Sensor line with a short circuit no d h w When using a d h w control thermostat The controllertakes into consideration the switching s...

Страница 119: ...ient d h w heating To allow the d h w to be heated up the boiler temperature must be higher than the d h w setpoint Setting range Unit Factory setting 0 30 C K 16 The setting will raise the boiler temperature setpoint when there is demand for d h w Increase Heating up time will become shorter More overshoot Decrease Heating up time will become longer Less overshoot Using the two settings the contr...

Страница 120: ...he d h w storage tank is heated up If the capacity of the heat source is no longer sufficient the mixing heating circuits will also be restricted 4 56 1 Frost protection for the plant Frost protection for the plant is fully active only in the case of setting 2 With setting 0 or 1 it will be partly or fully restricted If the boiler is correctly sized frost protection for the plant is also ensured w...

Страница 121: ...ps will be deactivated earlier Due to the lowering of the setpoint heat consumption will be reduced which means that the d h w will be heated up much quicker with minimum impact on the heating circuit This reduces considerably the heating up time for d h w with a minimum impact on the heating circuits Mixing valve Status Effect Locking signal 0 Flow temperature setpoint will be lowered The extent ...

Страница 122: ...up b to c d to e Within a foreseeable period of time the actual boiler temperature TKx will lie within half the switching differential of the boiler temperature setpoint è Locking signal will remain at a constant level c to d e to f Within a foreseeable period of time the actual boiler temperature TKx will lie above TKw è Locking signal will be decreased f The actual boiler temperature TKx exceeds...

Страница 123: ...rting valve D h w will be heated up with a diverting valve connected to terminal Q3 Y3 The charging pump operates as a function of the d h w switching differential setting 51OEM depending on the current setpoints which are activated by the d h w program setting 121 Also refer to plant diagram 1 in Index When using a charging pump d h w heating is also ensured in manual operation The diverting valv...

Страница 124: ...The separate d h w circuit is switched on D h w heating is provided via a diverting valve A diverting valve is connected to terminal Q3 Y3 In the case of d h w heating with a diverting valve one boiler of the cascade is used for d h w heating It is only that boiler which satisfies the demand for d h w During the time the d h w is heated that boiler does not give consideration to any heat demand fr...

Страница 125: ... sequence of the boilers shall be changed after an adjustable period of time Setting range Unit Factory setting 10 990 hours 500 Fixed switching on off sequence of the boilers in the cascade 10 990 On completion of the number of operating hours set here the switching sequence of the boilers in the cascade will change The other boiler will then become the lead boiler Example of 2 single stage boile...

Страница 126: ...y the release integral set here another boiler will be switched on 4 60 1 Temperature time integral The temperature time integral is a continuous summation of the temperature differential over the time In this case the decisive criterion is the difference by which the temperature falls below the cascade flow temperature TVKw SDK 2 TVKx Switching point Through the generation of the temperature time...

Страница 127: ...ch off one of the heat sources 4 61 1 Temperature time integral The temperature time integral is a continuous summation of the temperature differential over time In this case the decisive criterion is the cascade flow temperature being exceeded TVKx TKw SDK 2 Through the generation of the temperature time integral it is not only the period of time that is considered but also the extent of overshoo...

Страница 128: ...of units or in a system The addresses classify the controllers within a segment Address Effect Example 0 Standalone Single controllers 1 Master LPB Controllers with master function Heat generation master Consumer master in the respective segment 2 16 Slave LPB Controllers with slave functions Cascade slave Zone controller slave The device addresses should be assigned in consecutive order in accord...

Страница 129: ...d information refer to LPB System Engineering Basic Documentation reference number CE1P2370E 4 64 LPB power supply A central bus power supply is not required in systems with up to 16 devices Straightforward extension of systems The controller ensures a direct power supply to the bus system Setting range Unit Factory setting 0 1 Increment 1 Entry 0 Off No power supply from the controller to the bus...

Страница 130: ...ctive setting is made on line 142 4 66 Range of action of central changeover The range of action of central changeover can be defined Function for defining the range of action of central changeover Setting range Unit Factory setting 0 1 Increment 1 The range of action can be defined for central changeover Changeover of operating mode HCs d h w HCs Summer winter changeover and Stand by The range of...

Страница 131: ...etting on line 140 1 The setting will change the action of summer winter changeover 0 Local action Automatic summer winter changeover switches the local heating circuits 1 and 2 on and off With the local action the changeover temperatures can be set separately for each of the two heating circuits 1 Central action Automatic summer winter changeover switches the connected heating circuits in the sys...

Страница 132: ...40 1 and the setting line will only be displayed on this controller Entry 0 Central stand by circuit is switched off 1 Central stand by circuit is activated Segment address Effect 0 According to the setting made on line 145 1 14 Throughout the segment If central stand by on the master controller is switched on it can only be switched off again from that controller The central stand by circuit does...

Страница 133: ...ice can be adjusted The controller s time settings will not be matched to the system time Adjustment Controller time System time 1 System time The time settings on the device cannot be adjusted The controller s time settings will automatically and continuously be matched to the system time Adjustment Controller time System time 2 System time with adjustment Time settings on the device can be adjus...

Страница 134: ...ertime For that purpose the time of day is shifted forward by one hour Setting range Unit Factory setting 01 01 31 12 tt MM 25 03 4 71 Summer wintertime changeover Automatic changeover of the yearly clock to wintertime In accordance with present international standards the change from summertime to wintertime takes place on the last Sunday in October The standard setting of the controller complies...

Страница 135: ...ication number The connected device displays the identification The list below shows the various digits with the associated types of units Only digital peripheral devices can be connected to the controller 82 Digital room unit QAA50 83 Digital room unit QAA70 90 Digital room sensor QAA10 102 BMU only with A6 2373Z23 a b a Device identification see list b Selected setting line As soon as a device i...

Страница 136: ... the differential of collector temperature and storage tank temperature exceeds temperature differential TsdEin the collector pump will be activated 4 74 Temperature differential solar OFF TSdAus Collector pump s switch off point The setting defines the switch off threshold for the collector pump Setting range Unit Factory setting 0 TSdOn C K 8 If the differential of collector temperature and stor...

Страница 137: ...Energy related With energy related storage tank charging only the temperature differential TSdEin to the storage tank temperature is decisive Switch on point The collector pump will be activated as soon as the following conditions are met The differential of collector and storage tank temperature has exceeded temperature differential TSdEin The maximum storage tank temperature is not reached Switc...

Страница 138: ...ch off temperature level temperature level for solar TSdAus The storage tank temperatures at the bottom and at the top have reached the maximum storage tank temperature TSdEin TSdAus K6 7 237 3Z5 4 Tx TKox C t Tx MaximumSelection of actual storage tank temperature and line 162 TKox Actual value of collector temperature TSdEin Switching differential solar on line 160 TSdAus Switching differential s...

Страница 139: ... be released for maintaining the reduced d h w setpoint 0 Application with buffer storage tank and alternative heat source Outside the main occupancy hours an attempt is made to bring the d h w temperature to the reduced setpoint level using energy from the buffer storage tank This means that the d h w charging pump runs but the demand for heat will be suppressed The boiler for d h w heating will ...

Страница 140: ...ted to terminal H1 0 Changeover of operating mode HC d h w remote telephone switch The operating mode of all heating circuits and of the d h w circuit changes when the contact is closed 1 Changeover of operating mode HC remote telephone switch The operating mode of all heating circuits changes when contact is closed The d h w circuit remains unchanged 2 Minimum flow temperature setpoint TVHw The s...

Страница 141: ...All controllers in the system switch to operating mode With setting 0 d h w heating is switched off in the entire system with setting 1 it is released in the entire system With all controllers operating mode changeover with the buttons is no longer possible When the contact of the remote telephone switch opens all controllers will return to the operating mode selected last Check Buttons or flash o...

Страница 142: ...nt contact H setting line 171 in Index When the minimum flow temperature setpoint is activated d h w is still being heated if required If desired this function can also be accomplished with the help of terminal H2 and setting line 174 4 78 3 Heat generation lock Heat generation will be locked when a switch connected to terminal H1 e g peak load shaving via ripple control closes its contact All hea...

Страница 143: ...etpoint of 0 130 C and considers this value when generating the setpoint of boiler temperature control v 0 2 4 6 8 10 10 20 30 40 50 60 70 80 90 100 110 120 130 c 2379Z26 T 130 C T 50 C T 70 C T 90 C T 110 C S 5 C T maximum value of heat demand S minimum limitation of heat demand 5 C The setpoint for 10 V can be set with parameter Maximum value of heat demand operating line 172 setting range 5 130...

Страница 144: ...inimum flow temperature setpoint will be adjusted Prerequisite This setting is used only if one of the inputs H1 or H2 setting line 170 or 174 is set to Minimum flow temperature setpoint The boiler temperature is maintained at least at this minimum level even if the demand for heat continues to drop The switching differential in that case is the same as that with a normal temperature demand TVHw 1...

Страница 145: ...converts the heat demand voltage signal to a temperature 4 81 Operating action contact H1 and H2 The operating action of the contact can be matched to the type of output signal delivered by a device of other manufacture More flexibility when using non Landis Staefa products both operating actions can be considered This function enables the operating action of contact H1 or H2 to be matched to the ...

Страница 146: ...ct is closed 2 Heat generation lock Heat generation is locked when the contact is closed 3 Buffer storage tank sensor 2 Connection facility for a second buffer storage tank sensor Am Eingang H2 können bei den Einstellungen 1 und 2 mehrere Fremdregler parallel angeschlossen werden The function will be activated when one or several contacts close s depending on the selected setting When used as a se...

Страница 147: ...connected to the terminal e g peak load shaving via ripple control closes its contact All temperature demands of the heating circuits and of d h w heating will be ignored Frost protection for the boiler will remain ensured The chimney sweep function can be activated although the heat generation lock is switched on If desired this function can also be accomplished with the help of terminal H1 and s...

Страница 148: ...oiler temperature TKmax No damage to the boiler resulting from condensation The boiler temperature limitations are protective functions for the boiler Setting range Unit Factory setting TKmin 120 C 80 Tkmin Minimum limitation of boiler temperature setting on line 81 The setting will change the boiler temperature s maximum limitation If the boiler temperature reaches the level set here the burner w...

Страница 149: ... control Entry Increase Switching differential will become wider Fewer burner starts and longer burner running times Decrease Switching differential will become smaller More burner starts and shorter burner running times With 2 position control heat is produced at certain intervals The period of time during which heat is delivered is dependent upon the boiler mass and the amount of water contained...

Страница 150: ...oiler temperature TKx exceeds by more than half the switching differential the currently valid boiler temperature setpoint TKw the burner will be switched off The time switching off occurs can be delayed by the minimum burner running time Also refer to setting 04OEM TKw SDK 0 1 BR 2371D01 C TKw TKw SDK TKx t 40 C BR Burner TKx Actual value of boiler temperature TKw Boiler temperature setpoint SDK ...

Страница 151: ...ke certain the burner will not be switched off before the set minimum time has elapsed Each time the burner is switched off the minimum burner running time will be reset if not yet elapsed If the boiler temperature exceeds the setpoint by the amount of the entire switching differential the minimum burner running time will be ignored for safety reasons 0 1 0 50 40 30 1 TK t 4 12 16 20 0 60 C TK tBR...

Страница 152: ...ivate and deactivate burner stage 2 according to the switching differential 5 5 1 Temperature time integral The temperature time integral is a continuous summation of the temperature differential over time In this case the decisive criterion is the difference by which the boiler temperature falls below the burner s switch on setpoint TKw SDK 2 TKx Through the generation of the temperature time int...

Страница 153: ...tivate burner stage 1 according to the set switching differential 5 6 1 Temperature time integral The temperature time integral is a continuous summation of the temperature differential over time In this case the decisive criterion is the difference by which the boiler temperature exceeds the burner s switch off setpoint TKx TKw SDK 2 Through the generation of the temperature time integral it is n...

Страница 154: ...e time of burner shut down were operating continue to run for the period of time set here The behavior is the same as with burner shut down when with the burner deactivated the boiler temperature demand becomes invalid Also the previous flow temperature setpoint is maintained to make certain the mixing valve will be open during the same period of time ON OFF t BR Q t TVNw TVRw 2373Z28 Y t tPN t HK...

Страница 155: ...ed only when one of the consumers calls for heat The effective boiler temperature setpoint is used even if it lies below TKmin operating line 81 If the boiler temperature drops below the setpoint by half the boiler s switching differential SDK 2 the burner will be put into operation until the boiler temperature has exceeded TKmin by one switching differential extended burner running time With exte...

Страница 156: ...start up is switched off 1 Protective boiler start up is switched on Protective boiler start up is triggered via a locking signal generated by the temperature time integral Protective boiler start up leads to switching on off actions or setpoint reductions of the heating circuits depending on the type of heat consumer 5 9 1 Impact on 2 position loads Due to the deactivation of the pumps heat consu...

Страница 157: ...he magnitude and the period of time of boiler temperature undershoot Locking signal reduced to 0 Setpoint according to the normal control condition Through the generation of the temperature time integral it is not only the period of time that is considered but also the extent of boiler temperature undershoot This means that when the undershoot is significant the setpoint reduction will be greater ...

Страница 158: ...SDK 2 è Locking signal will be built up b to c and d to e Within a foreseeable period of time the actual boiler return temperature TKx will lie within half the switching differential of the boiler return temperature s minimum limitation è Locking signal will remain at a constant level c to d and e to f Within a foreseeable period of time the actual boiler return temperature TKx will lie above TKw ...

Страница 159: ...ding to which the boiler pump shall be operated Setting range Unit Factory setting 0 1 0 The settings have the following meaning 0 The boiler pump operates when there is a demand for heat In that case the boiler pump responds to locking signals 1 The boiler pump operates when there is a demand for heat or when the burner operates In that case the boiler pump does not respond to locking signals pro...

Страница 160: ... must be observed that the running time to be set only refers to the modulating range Running time of damper actuator 90 120 seconds Minimum position of damper actuator 20 Maximum position of damper actuator 80 Hence the damper actuator running time effective for the control is as follows s s 80 90 20 80 120 For control operation running time dependent minimum positioning pulses are active that ar...

Страница 161: ...ction time Tn Adapting the control characteristic to the plant s behavior controlled system Setting the integral action time for control of the damper actuator of the modulating burner Setting range Unit Factory setting 10 500 s 150 Tn influences the controller s I behavior 5 14 Derivative action time Tv Adapting the control characteristic to the plant s behavior controlled system Setting the deri...

Страница 162: ...Factory setting 0 20 C K 2 The setting changes the switching differential of air damper control Entry Increase Switching differential becomes wider Fewer on off pulses and longer intervals between full load and basic load Decrease Switching differential becomes smaller More on off pulses and shorter intervals between full load and basic load C 2373Z62 Auf Zu w SD TKx w Setpoint SD Switching differ...

Страница 163: ...7 Maintained boiler return temperature with consumer influence The effect on the consumers can be adjusted You can choose whether the maintained boiler return temperature shall have an effect on the consumers Setting range Unit Factory setting 0 1 1 The settings have the following meaning 0 Maintained boiler return temperature does not affect the consumers 1 Maintained boiler return temperature af...

Страница 164: ... ensures that the boiler return temperature will not fall below a certain level Increase Higher return temperatures Decrease Lower return temperatures 5 19 Switching differential of bypass pump Optimum control of the boiler bypass pump Control of the bypass pump is in the form of 2 position control for which a switching differential must be set The function is active only when controlling the bypa...

Страница 165: ... bypass pump Entry 0 Parallel with the operation of the burner The boiler bypass pump is switched on off according to the burner s on off signals 1 According to the boiler return temperature The boiler bypass pump is switched on off according to the minimum limitation of the boiler return temperature and the switching differential of the bypass pump 5 20 1 Parallel with the burner Setting 0 Operat...

Страница 166: ...means that hot water will be fed from the flow directly to the return so that the boiler return temperatures rises When the boiler return temperature acquired with sensor B7 exceeds the set minimum limitation setting line 23OEM by more than one switching differential of the bypass pump setting line 22OEM the boiler bypass pump will be deactivated In general Prerequisite Bypass pump TKRx TKRmin ON ...

Страница 167: ...nsidered but also the extent of return temperature undershoot This means that when the crossing is significant the pumps will be deactivated earlier Due to the lowering of the setpoint heat consumption will be reduced This reduces considerably the boiler water s heating up time Mixing valve Status Effect Locking signal 0 Flow temperature setpoint will be lowered The extent of lowering is dependent...

Страница 168: ...TKRx will lie below TKRmin è Locking signal will be built up b to c d to e Within a foreseeable period of time the actual boiler return temperature TKRx will lie within the switching differential SD è Locking signal will remain at a constant level c to d e to f Within a foreseeable period of time the actual boiler return temperature TKRx will lie above the level of TKRmin SD è Locking signal will ...

Страница 169: ...erved the setpoint cannot be attained within the required period of time Hence this setting raises the mixing valve flow temperature setpoint Setting range Unit Factory setting 0 50 C K 10 The setting raises the boiler temperature setpoint when the mixing heating circuit calls for heat Increase Reduced risk of flow temperature undershoots Decrease Flow temperature undershoots possible The controll...

Страница 170: ...rature setpoint TRx Actual value of the room temperature TRwk Corrected room temperature setpoint The gain factor of room influence is only active when a room unit is connected 5 23 Constant for quick setback and optimum start control KON Making use of the building s thermal storage capacity Quick setback is dependent on whether or not a room sensor is used Therefore we speak of quick setback with...

Страница 171: ...elapsed which is generated from setting 32OEM the composite outside temperature and the room temperature setpoint change The example applies to a setpoint step change of 4 C e g TRw from 20 to 16 C Setting on line 32 OEM TAgem 0 4 8 12 15 20 20 0 0 0 0 0 0 10 0 0 5 1 1 5 2 2 5 0 0 3 6 9 11 15 10 0 5 11 15 16 5 15 21 15 27 Values in hours If a room sensor is connected the quick setback time will no...

Страница 172: ... More setpoint boost Heating up time will become shorter Decrease Less setpoint boost Heating up time will become longer 5 24 1 Boost heating Boost heating is started as soon as switching to a higher room temperature setpoint occurs e g switching times in automatic mode With the setting on line 33OEM the room temperature setpoint will be raised until the room is heated up TRw C The boost produces ...

Страница 173: ...tection for the plant The heating circuit pump will be switched on as a function of the actual outside temperature even if there is no demand for heat Outside temperature Pump Diagram 4 C Continuously ON ON 5 1 5 C ON for 10 minutes at 6 hour intervals takt 1 5 C Continuously OFF OFF Between 4 5 C different statuses can occur In that range it is important which situation had existed before If the ...

Страница 174: ...ontrol delivers on off output signals that allow the motorized mixing valve to open and close For adequate control a switching differential is required When using a 2 position actuator it is therefore important that the switching differential be matched to the type of plant Also refer to switching differential of actuator in Index setting line 36OEM 3 position control delivers output signals that ...

Страница 175: ... heating circuit Decrease Switching differential will become smaller More frequent and shorter heating up times smaller temperature variations Smaller temperature variations in the heating circuit 5 27 1 Control of mixing valve actuator 2 position control provides control of the motorized mixing valve by delivering pulses Generally this means The greater the amount of heat needed the longer the he...

Страница 176: ...he heating circuit pump in a way that excessive flow temperatures will be compensated When overtemperature protection is provided the heating circuit pump cycles thus reducing excessive flow temperatures that lie above the setpoint The cycling period is fixed at 10 minutes ε TVwGef TRw TKxGed TRw ε On time ratio TVwGef Demanded flow temperature setpoint TRw Current room temperature setpoint TKxGed...

Страница 177: ...on of the heating curve in the temperature range 4 to 12 C Also refer to adaption of heating curve in Index Setting range Unit Factory setting 1 15 15 The level of adaption sensitivity is automatically adapted by the controller and therefore need not be manually adjusted The heating curve in the temperature range 4 to 12 C will be differently adapted depending on the level of adaption sensitivity ...

Страница 178: ...ing curve in the temperature range below 4 C will be adapted differently depending on the level of adaption sensitivity 2 Increase More adaption Decrease Less adaption Each time a significant adaption of the heating curve below 4 C ZAF2 has taken place adaption sensitivity 2 will automatically be reduced by one step This means that the extent of adaptation and thus only the readjustment of the hea...

Страница 179: ...ences the controller s P behavior 5 33 Integral action time of mixing valve Y1 Tn Adapting the control characteristic to the plant s behavior controlled system Setting the I part for control of mixing valve actuator Y1 that can be used for heating circuit 1 or for maintained boiler return temperature control Setting range Unit Factory setting 10 873 s 120 Tn influences the controller s I behavior ...

Страница 180: ...ited by the end user Reduces risk of scalding Setting range Unit Factory setting 8 80 C 60 The setting will ensure maximum limitation of the nominal d h w temperature setpoint setting on line 26 0 10 20 30 40 50 60 70 80 90 100 C 2373Z13 26 Setting Nominal setpoint of the d h w temperature 120 Setting Reduced setpoint of the d h w temperature 50 OEM Setting Maximum nominal setpoint of the d h w te...

Страница 181: ...larger temperature variations Decrease Switching differential will become smaller More frequent and shorter heating up times smaller temperature variations 5 36 1 D h w temperature control 2 position control heats the d h w at certain intervals The duration of the heating up time is dependent on the mass of the storage tank and the amount of water contained in the tank The greater the amount of d ...

Страница 182: ...sensors The d h w temperature is acquired with 2 temperature sensors connected to terminals B3 and B31 The control considers the actual values of the sensor for the higher and the lower temperature as follows D h w ON TBWx of both sensors TBWw SDBW D h w OFF TBWx of both sensors TBWw If the d h w temperature is controlled with 2 sensors the respective setting must be made on line 174 Note ...

Страница 183: ...ionella function in Index line 37OEM This function is possible only when d h w heating is released by the d h w heating program If the legionella function is aborted during the usual time on Mondays it will be repeated the next time the d h w setpoint is changed Legionellas are viruses that can occur in hot water installations which can cause pneumonia legionnaires disease To minimize the risk it ...

Страница 184: ...lla function 5 39 Discharge protection during d h w heating Presents discharging of the d h w storage tank due to too low flow temperatures during d h w heating Setting range Unit Factory setting 0 2 2 The setting activates or deactivates the protection against discharging 0 Protection against discharging is not active 1 Protection against discharging is active 2 Protection against discharging is ...

Страница 185: ...oving the controller The software version installed represents the state of the software available at the time the controller was produced Display Unit 00 0 99 9 Digits The software version will automatically be displayed on this line Example 01 0 The first 2 digits give the software version 01 The third digit gives the software revision 0 5 42 Device operating hours Display of the number of devic...

Страница 186: ...emand for the highest setpoint required by a consumer e g by a heating circuit generates the current boiler temperature setpoint The setpoint requirements considered stem from both controller internal setpoints and setpoints transmitted via LPB Auxiliary functions such as setpoint boosts and the like are included in the setpoints actually demanded at the time A demand for d h w has priority over a...

Страница 187: ...21 The heat consumers will be restricted by generating a locking signal The function is based on the generation of an integral as used with protective boiler start up a Deactivation is possible by having the adjusted setpoint on line 22 OEMsmaller than the possible actual value of the return temperature Dies ist durch die Standardeinstellung gegeben This will have no influence from maintained boil...

Страница 188: ...meters of Xp Tn and Tv will be used To optimize and check the control parameters it is recommended to follow the procedure detailed below under Checking the control function 6 3 2 Checking the control function To check the control behavior with the preset control parameters the following procedure is recommended after the controller has reached and held the setpoint for a certain time change the s...

Страница 189: ...r 3 Reduce Tn in steps of 10 to 20 seconds Repeat steps 2 and 3 alternately 1 1 2 Control action too fast If the control system s response is too hefty so that it starts oscillating setting parameters Xp Tn and Tv must be increased in a stepwise fashion A new readjustment should be made only after the control action resulting from the previous readjustment is completed TKx 2371Z65 t TKw Control ac...

Страница 190: ...emperature basis used for this process are the values of the flow temperature setpoint and the current room temperature setpoint If the flow temperature setpoint falls below the room temperature setpoint plus a correction value the heating will be switched off Heating OFF TVw TRw 2 S 10 If the flow temperature setpoint exceeds the room temperature setpoint plus a correction value the heating will ...

Страница 191: ... a correction value the heating will be switched off Heating s switch off point 16 31OEM 10 S 2 TRw TVwk If the flow temperature setpoint corrected by the room influence exceeds the room temperature setpoint plus a correction factor the heating will be switched on Heating s switch on point 16 31OEM 10 S 4 TRw TVwk TVwk Flow temperature setpoint readjusted by the room influence TRw Room temperature...

Страница 192: ... temperature setpoint H Quick setback function Due to the readjustment of the room temperature setpoint the heating circuit pump will be switched off until the quick setback process is terminated This means that the room temperature falls quicker since the supply of heat from the boiler is cut off If no room sensor is connected quick setback will not be accomplished through this process Also refer...

Страница 193: ... temperature 1 Press the line selection buttons to select line 34 2 Press the buttons for 3 seconds As soon as the display stops flashing the attenuated outside temperature is reset to the actual outside temperature The attenuated outside temperature is generated by the controller It is calculated at 10 minute intervals based on the actual outside temperature The factory setting uses a basic value...

Страница 194: ...s generated as follows Selected type of construction composite outside temperature Heavy setting 113 0 Tagem TAakt TAged Heavy setting 113 1 Tagem TAakt TAged The composite outside temperature as a compensating variable acts on flow temperature control that is thus matched to the prevailing weather conditions It also acts on the 24 hour heating limit to shut down the heating 13 14 15 16 17 2371D12...

Страница 195: ...sh is triggered as soon as the actual d h w temperature falls below the reduced d h w setpoint line 51OEM by an amount that exceeds twice the switching differential line 120 TBWx TBWR 2 SDB When the d h w push is triggered the storage tank is charged once until the nominal d h w temperature setpoint line 120 is reached Then normal operation according to the d h w heating program is resumed t 2371D...

Страница 196: ...l parts of the pumps and the valve seats will be purged thus preventing the pumps and valves from seizing The electric immersion heater K6 K7 is not affected by this function 6 11 Protection against discharging after d h w heating Inadvertent discharging of the d h w storage tank will be prevented The Protection against discharging after d h w heating prevents inadvertent discharging of the d h w ...

Страница 197: ...the consumers the heat generation will be locked and the consumers receive their heat from the buffer storage tank If the temperature measured in the buffer storage tank is lower than the flow temperature called for by the consumers the buffer storage tank will be locked and the consumers receive their heat solely from the heat source Example of a hydraulic circuit with a buffer storage tank The b...

Страница 198: ...before d h w Runs when there is demand for heat 1 Runs when there is demand for heat Runs when there is demand for heat K6 System pump external demand Does not run Runs when there is demand for heat 1 Does not run K6 D h w circulating pump K7 D h w circulating pump No influence from type of heat demand Pump runs according to the setting made on line 122 K6 Electric immersion heater for d h w K7 El...

Страница 199: ...tection setpoint for the boiler is factory set at 5 C and cannot be changed Protective boiler startup remains activated within its functionality The minimum burner running time line 4 OEM is taken into consideration 6 14 2 For the d h w If then the actual value of the d h w temperature falls below 5 C TBWx 5 C the frost protection function for the d h w becomes active the actual value of the d h w...

Страница 200: ... circuit If the flow temperature of the heating circuit falls below 5 C a valid temperature demand of 10 C will be generated This causes the heating circuit pump to be activated and in case of the mixing heating circuit the mixing valve actuator to be driven to the required position If the flow temperature reaches the switch off threshold of 7 C the temperature demand will be maintained for anothe...

Страница 201: ...diagrams is structured in the form of a matrix Since application of the available functionality is very comprehensive a complete presentation of the diagrams would be somewhat confusing However the selected structure demands observance of the following procedure to find the required type of plant Basically the presentations are subdivided into heat sources and plants So first of all select the typ...

Страница 202: ...1 PPS BMU 0 B1 Single stage burner 1 C1 C2 C3 2 stage burner 2 C1 C2 C3 Modulating burner 3 pos 3 D1 D2 D3 Modulating burner 2 pos 4 D1 D2 D3 Cascade 2 x single stage 5 E1 Without maintained boiler return temperature Maintained boiler return temperature with bypass pump K6 or K7 line 95 or 96 Maintained boiler return temperature with mixing valve line 20 OEM 7 2 1 PPS BMU B1 Without maintained boi...

Страница 203: ...3 Maintained boiler return temperature with mixing valve B2 K4 K5 B9 2373z32 B7 K6 K7 2373z30 Y1 Y2 B7 Q2 2373z31 7 2 3 Modulating burner D1 Without maintained boiler return temperature D2 Maintained boiler return temperature with bypass pump D3 Maintained boiler return temperature with mixing valve B2 K4 B9 K5 K7 B7 K6 2373z30a Y1 Y2 B7 Q2 2373z31 RC members for suppression of interference and fo...

Страница 204: ...CE1P2373E Landis Staefa Division Application examples 26 03 2001 7 2 4 Cascade 2 x 1 E1 Without maintained boiler return temperature K7 K4 B9 K5 K6 2373z38 B2 7 2 5 Cascade slave Example RVA63 242 RVA63 242 RVA43 222 0 0 0 Segment 2 3 1 Address 2373z63 B10 B2 K4 K5 K7 B2 K4 K5 K7 ...

Страница 205: ...73z44 K6 K7 Q3 Q2 Heat source variant Plant type D h w PC MC A B C D E 1 41 x 1 38 x x 1 12 x 1 37 x x 1 11 x 1 122 x 2 1 123 2 1 124 x x x 1 125 x x 1 1 1 4 x 1 1 1 5 c 1 1 1 21 x x x 1 1 1 22 c x x 1 1 1 23 x 2 1 1 1 24 c 2 1 1 1 1 x x 1 1 1 2 c x 1 1 1 15 x x 1 1 1 16 c x 2 2 46 x 2 2 47 2 2 13 x x 2 2 14 x 2 2 17 x x 2 2 18 x 2 83 x 2 2 84 2 2 85 x x x 2 86 x x 3 3 87 b x 3 3 88 b 3 3 89 x x 3...

Страница 206: ... 2373z45 Q2 K7 Q3 Heat source variant Plant type D h w PC MC A B C D E 1 128 x 1 129 1 130 x x 1 131 x 1 132 x x 1 133 x 1 134 x 2 1 135 2 1 136 x x x 1 137 x x 1 1 1 45 a x 1 1 1 7 a c 1 1 1 42 a x x 1 1 1 43 a c x 1 1 1 19 a x x 1 1 1 20 a c x 1 1 68 a x 2 1 1 69 a c 2 1 1 70 a x x x 1 1 71 a c x x 2 91 a x 2 92 a 2 93 a x x 2 94 a x 2 95 a x x 2 96 a x 3 3 97 b x 3 3 98 b 3 99 x x 3 100 x ...

Страница 207: ...3 K7 Y1 K6 B1 2373z46 Q2 K7 Q3 Heat source variant Plant type D h w PC MC A B C D E 1 138 x 1 129 1 139 x x 1 131 x 1 140 x x 1 133 x 1 141 x 2 1 135 2 1 142 x x x 1 137 x x 1 1 1 6 x 1 1 1 7 c 1 1 1 44 x x 1 1 1 43 c x 1 1 1 72 x x 1 1 1 20 c x 1 1 73 x 2 1 1 69 c 2 1 1 74 x x x 1 1 71 c x x 2 101 x 2 92 2 102 x x 2 94 x 2 103 x x 2 96 x 3 3 104 b x 3 3 98 b 3 105 x x 3 100 x ...

Страница 208: ...nd B31 B3 K7 Y1 K6 2373z47 Q2 K7 Q3 Heat source variant Plant type D h w PC MC A B C D E 1 138 x 1 129 1 143 x x 1 144 x 1 145 x x 1 146 x 1 147 x 2 1 148 2 1 149 x x x 1 150 x x 1 1 1 6 x 1 1 1 7 c 1 1 1 75 x x 1 1 1 76 c x 1 1 1 77 x x 1 1 1 78 c x 1 1 79 x 2 1 1 80 c 2 1 1 81 x x x 1 1 82 c x x 2 101 x 2 92 2 106 x x 2 107 x 2 108 x x 2 109 x 3 3 104 b x 3 3 98 b 3 110 x x 3 111 x ...

Страница 209: ...3 2001 7 3 5 D h w diverting valve B31 B3 K6 K7 Q3 2373z48 Heat source variant Plant type D h w PC MC A B C D E 1 3 x x With a multi stage heat source Q2 becomes the boiler pump Heat source variant Plant type D h w PC MC A B C D E 1 1 10 x 1 1 118 x x 1 1 119 x x 1 120 x 2 1 121 x x x Standalone Cascade slave with separate d h w circuit ...

Страница 210: ...ubstituted by setting Boiler pump b If due to the applicatin multi functional outputs K6 and K7 cannot be parameterized as HC2 pump the controller can generate a weather compensated flow temperatue For heating circuit slope HC1 line 30 a valid value must be set This function is required in the case the consumer side does not generate heat demand signals that is no LPB compatible devices are connec...

Страница 211: ...ue gas sensor collector sensor B9 Outside sensor DB Data bus LPB H1 Changeover contact MB Ground bus LPB MD Ground room unit bus PPS M Ground sensors E1 Hours run burner stage 1 F1 Phases K6 and Q3 Y3 F2 Phase Y1 and Y2 F4 Phase burner stage 1 F5 Phase burner stage 2 F6 Phases Q2 and K7 K4 Burner stage 1 K5 Burner stage 2 K6 Multi functional output K7 Multi functional output L Live AC 230 V mains ...

Страница 212: ... H2 B41 M Q2 F6 F2 Y2 Y1 N Y1 Y2 E1 K6 F1 Q3 Y3 M B B4 K7 MFA MFA M L N N1 MD A6 B M B3 B M B9 B M L N MB DB PPS LPB 2373A12 M H1 B M B7 B M B M B8 B6 B B M M B2 M B1 B31 H2 B41 M Q2 F6 F2 Y2 Y1 N Y1 Y2 K6 F1 Q3 Y3 M B B4 K7 MFA K5 K4 F5 F4 E1 M L N N1 MD A6 B M B3 B M B9 B M L N MB DB PPS LPB K5 K4 F5 2373A13 M H1 B M B7 B M B M B8 B6 B B M M B2 M B1 B31 H2 B41 M Q2 F6 F2 Y2 Y1 N Y1 Y2 E1 K6 F1 Q...

Страница 213: ... 96 8 1 2 Combination of controllers When arranging a number of controllers side by side the total length of the panel cut out must be calculated as follows The sum of all nominal lengths minus the corrective dimensions for the intermediate space e gives the total length of the panel cut out Combination e Calculation Panel cut out 96 plus 96 4 96 96 4 188 mm 144 plus 96 5 96 144 5 235 mm 144 plus ...

Страница 214: ... to IEC 721 3 1 Transport to IEC 721 3 2 Class 3M2 Class 1M2 Class 2M2 Mode of operation To EN 60730 par 11 4 11 4 1b Output relays Voltage range Nominal current Switch on peak Anschlussabsicherung AC 24 230 V 5 mA 2 A cos phi 0 6 max 10 A max 1 s max 10A Bus extension PPS Cable telephone wire Permissible cable length 2 x 0 5 mm2 interchangeable 50 m LPB Cable Permissible cable length Node spacing...

Страница 215: ... w control thermostat 118 d h w heating program 113 d h w push 195 d h w sensor 118 d h w sensor 2 146 d h w temperature control 181 with 2 sensors 182 delay time 127 demand for heat with reduced d h w setpoint 139 device operating hours 185 dimensions of cut out 16 discharge protection d h w 184 display common flow temperature setpoint 79 display flow temperature setpoint 82 display of plant type...

Страница 216: ...oom sensor 192 R range of action of central changeover 130 reduction of condensation 156 regulations for installation 14 release integral for boiler sequence 126 release integral for boiler sequence 126 remote telephone switch 141 reset integral for sequence 127 reset integral of boiler sequence 127 restriction of mixing valve from control of bypass pump 166 room influence 97 room temperature limi...

Страница 217: ...on Korrigenda 26 03 2001 Korrigenda Side Location Changes 1 xx Complete document Due to a comprehensive revision a number of new functions have been added and a large number of existing functions have been modified and adapted It is therefore not possible to give a detailed description of all the changes made ...

Страница 218: ...RVA53 242 CE1P2373E Landis Staefa Division Korrigenda 26 03 2001 Siemens Building Technologies AG Landis Staefa Division Gubelstrasse 22 CH 6301 Zug Tel 41 41 724 24 24 Fax 41 41 724 35 22 www landisstaefa com 1999 Siemens Building Technologies Ltd Subject to alteration ...

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