Rotex Controller Series Page 151 Product Documentation Download | Manualshive

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EbV

Product documentation THETA NORM/UNIT

9-7

9.3

Expanding the system by several standard units

9.3.1

Examples with several controllers

Example 1:

Heating system with 2 stage heat generator, DHW control, and 4 mixed circuits. The
following diagram shows the hydraulic system.

The following components will be connected to the first controller with busadress 10:

• Outdoor sensor
• Stage 1 and 2 of the burner
• Boiler sensor
• DHW sensor
• Domestic hot water charging pump
• Mixer pump, mixer open / closed and flow sensor of heating circuit 1
• Mixer pump, mixer open / closed and flow sensor of heating circuit 2

The following components will be connected to the second controller with busadress
20:

• Mixer pump, mixer open / closed and flow sensor of heating circuit 3
• Mixer pump, mixer open / closed and flow sensor of heating circuit 4

Boiler

DHW tank

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Summary of Contents for Controller Series

Page 1: ...EbV Product documentation THETA NORM UNIT Product documentation Controller series THETA NORM UNIT RS and RFF types Standing Software version 2 3...

Page 2: ......

Page 3: ...urve key 5 11 5 1 2 7 Plant information key 5 11 5 1 2 8 Emission Measurement Manual Mode Key 5 15 5 2 Code Input 5 17 5 2 1 Installer code and OEM code 5 17 5 2 2 User code 5 17 5 2 3 Automatic exit...

Page 4: ...in Fahrenheit 6 6 6 2 2 7 Controller type code 6 6 7 General controller functions 7 1 7 1 Outside Temperature Measurement 7 1 7 1 1 Determination of long time value and mean value 7 1 7 1 2 Building...

Page 5: ...uit 8 19 8 2 1 Weather controlled heating operation 8 19 8 2 1 1 Heating Characteristic Curve 8 19 8 2 1 2 Heating Circuit Reduced Mode 8 21 8 2 1 3 Heating system exponent 8 22 8 2 1 4 Heating Circui...

Page 6: ...eration of wall devices RS 9 3 9 2 2 Operation with wall device RFF 9 4 9 2 3 Bus priority heating circuit 9 6 9 3 Expanding the system by several standard units 9 7 9 3 1 Examples with several contro...

Page 7: ...cal installation 12 6 12 3 2 Electrical connection in wall socket MS K 12 8 12 4 Mounting instructions remote unit 12 9 12 4 1 Mounting location 12 9 12 4 2 Electrical connection 12 10 12 4 3 Data bus...

Page 8: ...EbV Product documentation THETA NORM UNIT VI...

Page 9: ...sion Please use this documentation in conjunction with softwareversion V 2 3 of your controller The version will be displayed for about 8 s when the controller is connected to the mains If you are usi...

Page 10: ...EbV Product documentation THETA NORM UNIT 1 2...

Page 11: ...measures have to be carried out by a specialist according to the valid norms and VDE guidelines as well as the local instructions The electrical connection must be fix see instructions by VDE 0100 Th...

Page 12: ...h as solid state relays motors transformers dimmers micro wave ovens TV sets loudspeakers computers radio telephones etc a minimum distance of 40 cm must be observed Between remote units and standard...

Page 13: ...radio controlled alert systems or close to big radio transmission plants 2 4 Cable dimensions and maximum cable length For all 230V cables such as power supply burner pumps actuators 1 5 mm2 Maximum c...

Page 14: ...ature of 65 C in order to kill legionella bacteria in the hot water system on the selected day and at the selected time Manual operation Emission measurement In the manual mode emission measurement mo...

Page 15: ...r supply at the terminals 21 22 2 6 12 and 18 also the terminal rows X3 and X4 will carry 230 V connections If a manual switch function is desired for pumps even though the DHW charging pump does not...

Page 16: ...EbV Product documentation THETA NORM UNIT 2 6...

Page 17: ...ypes that have the designation VV in the type key The following types can be selected Type 2 Burner stage 1 Burner stage Direct circuit HC MC 1 MC 2 Domestic hot water charging pump Variable outputs 1...

Page 18: ...EbV Product documentation THETA NORM UNIT 3 2...

Page 19: ...DHWS DHW sensor SD II Switching differential II ECO Eco mode SFP Solid fuel pump ELH DHW electrical heating element SLV Solar load switch EM Extra Module SOL P DHW charging pump FGS Flue gas sensor SO...

Page 20: ...EbV Product documentation THETA NORM UNIT 4 2...

Page 21: ...ck with labelling 7 Daytime Room Temperature 8 Night time Room Temperature 9 DHW daytime temperature setpoint 10 Rotary pushbutton push turn 5 1 1 Basic display The display illumination is activated b...

Page 22: ...2 Daytime Room Temperature Key This key sets the room temperature setpoint in the AUTOMATIC MODE during the heating cycles as well as during the PARTY and HEATING operating modes In control mode 1 the...

Page 23: ...ning the rotary pushbutton to the desired value Confirm the set value by pressing either the key or the rotary pushbutton Alternatively the value can be acquired automatically after the set INFO TIME...

Page 24: ...me interval for the overlapping DHW charging mode can be adjusted between 0 and 240 min The current weekly program is overlapped 5 1 2 5 Operating Mode Key Basic Display Sets the operating mode and ju...

Page 25: ...he value can be acquired automatically after the set INFO TIME Back to Basic Display Jump back to the basic display from any control level by pressing the key for approx 3 s 5 1 2 5 1 Holiday Mode Sho...

Page 26: ...urrent date Setting range Current date Current date 250 days Display An active holiday program appears on the basic display with the indication of the return date 5 1 2 5 2 Absent Mode Short term Prog...

Page 27: ...ly switch back to the operating mode which was active before the party mode Short term programs such as ABSENT or HOLIDAY are skipped Application One time unscheduled extension of the heating or inter...

Page 28: ...nly if they were enabled in the System Paramete Menu Time Program P1 P3 If they are not enabled only Program P1 is active Application Municipial buildings schools offices etc heating and domestic hot...

Page 29: ...uit work exclusively according to the standard or personalized programmed switching times in time program P1 The P1 program does not appear on the display in this operating mode Enable System Paramete...

Page 30: ...D HEATING is maintained until another operating mode is activated Display The reduced mode appears on the standard display RED HEATING 5 1 2 5 8 Standby mode In STANDBY mode the entire system is switc...

Page 31: ...on to set the flashing curve value and push the rotary pushbutton to confirm Alternatively the value can be acquired automatically after the set INFO TIME Push to return to the standard display Settin...

Page 32: ...s sensor connceted at boiler control C Return flow Nominal actual value Return flow sensor at var input and return temp increasing activated External blocking Block mode ON OFF Ext blocking at variabl...

Page 33: ...harging pump at variable output corresponds to SBUS or BUSF according to configuration VV Upper buffer sensor Nominal actual value Buffer charging pump at var output VV Lower buffer sensor Nominal act...

Page 34: ...utput 1 VV Starts heat generator 1 NR OF STARTS 1234 ST 1 Accumulated number of starts Single stage or stage 1 2 stage 2 22 Operating hours heat generator 1 OPER HOURS 246 Accumulated operating hours...

Page 35: ...n Measurement may only be carried out by the heating specialist CAUTION Emission Measurement has to be carried out by a technician By pressing this key the heat generator runs for 20 minutes at the se...

Page 36: ...n the left hand of the display while the current heat generator temperature is displayed statically on the right hand side The switching differential corresponds to the set differential for automatic...

Page 37: ...entry the message CODE ERROR will appear The installer code is The OEM code is Caution Released parameters are locked again if for the duration of no further service occurs In this case the specialis...

Page 38: ...it has finished the unit automatically returns to the standard display after a factory set time of 2 minutes The exit time can be changed by setting a system parameter see Page 5 42 The exit time appl...

Page 39: ...t has finished the unit automatically returns to the standard display after a factory set time of 2 minutes The return time can be changed by setting a system parameter The return time applies to keys...

Page 40: ...to the different controller types Entry into the Parameter Menu Level To enter the menu the rotary pushbutton is to be pressed for approx 3 s The parameter menu always starts with the time programs me...

Page 41: ...tat function Room thermostat function Switching differential II 10 Input VI 3 Building type DHW switching differential Outdoorsensor assignment Outdoorsensor assignment Outdoorsensor assignment Time d...

Page 42: ...r panel Switch off diff boiler buffer Switching differential Sequential switch over pwr Bus access r unit MC2 Actuator MIX VALVE 1 Malfunction message 4 DHW tank sensor 4 Max buffer temperature Inhibi...

Page 43: ...isabled The current weekday from Mon to Sun is determined from the calendar data and does not require setting Entry see menu selection level Page 5 20 Change A flashing day value in the display can be...

Page 44: ...temperature values should be entered in the tables envisaged for this purpose Entry see menu selection level Page 5 20 5 4 3 1 Control Circuit Selection After accessing the time program menu the desir...

Page 45: ...d cycle when confirmed When subsequently adding an earlier cycle the relevant weekday needs to be reprogrammed A flashing switch on time is acquired by pressing the rotary pushbutton 5 4 3 4 2 Switch...

Page 46: ...emperature always refers to the desired room temperature while in the case of the DHW circuit it refers to the desired water heater normal temperature in the selected cycle A flashing cycle temperatur...

Page 47: ...Mixed circuit 2 Mo Su 6 00 22 00 STANDARD DISPLAY TIME PROGRAMS UNMIXED CIRCUIT MONDAY Heating cycle 1 HEATING START HEATING END TEMPERATURE TIME CALENDER SYSTEM PARAMETER MIXED CIRCUIT 1 MONDAY Heati...

Page 48: ...MO TH Fr Sa Su 6 00 8 00 16 00 22 00 6 00 8 00 13 00 22 00 7 00 23 00 Mixed circuit 1 Mo Fr Sa Su 7 00 18 00 red heating Mixed circuit 2 Mo Su 6 00 22 00 Mixed circuit 2 MO TH Fr Sa Su 6 00 8 00 16 0...

Page 49: ...t Example MC 2 Program Example Program 1 Copying function Example Monday cycle I PROGRAM P1 PROGRAM P2 PROGRAM P3 press MONDAY Heating cycle 1 MONDAY Heating cycle 2 MONDAY Heating cycle 3 TUESDAY Hea...

Page 50: ...ter UNMIXED CIRCUIT etc TIME PROGRAMS Push for approx 3 seconds Level SELECTION press Copying function UNMIXED CIRCUIT MIXED CIRCUIT 1 MIXED CIRCUIT 2 DHW STANDARD COPY HEATING CIRCUITS press Source E...

Page 51: ...T MC1 OK Standard program was reloaded Individual program is no longer available Time programs P2 and P3 enabled STANDARD DISPLAY TIMEPROGRAMS Push for approx 3 seconds Level SELECTION TIME CALENDER S...

Page 52: ...nabling of the time programs for the program selection and for the individual time program programming When supplied only one time program is enabled The use of only a single switching time program fo...

Page 53: ...s 2 Each heating circuit can be assigned its own setting operating mode daytime temperature night time temperature 5 4 4 3 1 Separate Control Mode Daytime Temperature Function In this operating mode t...

Page 54: ...exit after the set time 5 4 4 3 3 Separate Control Mode Operating Mode Selection Function In separate operating mode the selected program only applies to the previously specified heating circuit Hence...

Page 55: ...y indicator SET will flash when the rotary push button is pressed briefly A reset will be performed when the rotary push button is pressed for approx 5 seconds Once the parameter settings have been re...

Page 56: ...outbreak in the hot water tank and is activated on the selected weekday or every day at 02 00 hrs If the DHW temperature is below 65 C the hot water tank is reloaded Note If a DHW thermostat is used...

Page 57: ...witch off mode During reduced mode the direct heating circuit is completely switched off if the outside temperature exceeds the set frost protection limit The heat generator minimum temperature limit...

Page 58: ...ting characteristic of the direct heating circuit and compensates the performance losses at low temperatures by means of its progressive characteristic Depending on the type of heating system the foll...

Page 59: ...g logic which displays the type of malfunction according to its priority The malfunction messages alternate with the standard display as they appear Several malfunctions occurring at the same time wil...

Page 60: ...Hydraulic buffer release VV 2 8 19 8 39 8 40 8 56 8 39 8 12 8 12 8 58 8 58 8 40 8 13 8 55 06 Variable output 1 Type VV OFF No function 4 DHW circulation pump 5 DHW electrical heating element 9 Boiler...

Page 61: ...parameter 16 flue gas sensor OFF 10 Variable input 3 VV Setting range and assignment see parameter 08 without parameter 16 flue gas sensor OFF 11 Indirect raising of return temperature via mixing valv...

Page 62: ...e zone 20 0 0 C 12 C 7 3 10 Building type 1 light construction 2 medium construction 3 heavy construction 2 7 1 11 Time for automatic exit return to basic display OFF No automatic exit 0 5 5 min after...

Page 63: ...l mode 5 Priority mode with intermediate heating 6 Priority separation circuit 7 External operation 2 8 34 08 DHW tank discharge protection OFF No discharge protection ON Discharge protection activate...

Page 64: ...y if VI n outdoor sensor 2 0 Control to mean value of OS 1 OS 2 1 Control to OS 1 2 Control to OS 2 0 7 2 11 Constant temperature setpoint 10 95 C only if output is set at constant control CC 20 C 8 5...

Page 65: ...time 0 20 Min 2 Min 8 4 08 Burner switching differential I SD I 1 stage 2 30 K 2 stage 2 SDII 0 5K 6 K 8 3 09 Burner switching differential II SD II 22 SD I 0 5 K 30 K 8 K 8 4 10 Time delay stage 2 22...

Page 66: ...mit 110 C 110 C 8 3 31 Minimal load control OFF 1 10 min OFF RESET ST 1 Reset oper hours starts stage 1 SET 8 19 RESET ST 2 Reset oper hours starts stage 2 SET 8 19 Parameter Designation Setting range...

Page 67: ...KJ kgK only if solar heat balance is enabled 3 6 KJ kgK 8 40 14 Final switch off temperature OFF 90 210 C 150 C 8 40 15 Test cycle solar load switch 1 60 Min 10 Min 8 40 16 Switch over temperature 50...

Page 68: ...g Link 01 Switching differential 0 5 30 0 K 8 K 10 1 02 Switching on delay 0 60 min 0 Min 10 1 03 Switching off delay 0 60 min 0 Min 10 1 04 Sequential switch over power stage sequence 10 100 65 10 1...

Page 69: ...OFF 11 3 Parameter Designation Setting range Setting values Factory settings Individual setting Link 01 Malfunction message 1 Last malfunction message 11 4 02 Malfunction message 2 Next to last malfu...

Page 70: ...EbV Product documentation THETA NORM UNIT 5 50...

Page 71: ...on the day of commissioning After that device identification follows Device type Type code and version number Provided that there is not any error message the basic display with date time and current...

Page 72: ...itching time program for a wide range of applications makes it possible to simplify operating 6 2 2 2 Suppressing the cycle temperature on Time program level When programming switching times the speci...

Page 73: ...e effect on the different heating circuits 6 2 2 4 Selection of Hydraulic Parameter Presettings F Description Each controller type when supplied covers a specific hydraulic diagram see overview on pag...

Page 74: ...esponding output Example PARAMETER 05 determines the output for the unmixed circuit pump The factory presetting for this output is HC If this output is assigned the function circulation pump the funct...

Page 75: ...SPFS SPBU SPRS 14 Return flow sensor option 16 Buffer charging pump VV VO1 VO2 BU BU1 19 If BULP is set BU is assigned to VI permanently Otherwise BU1 can be set at a free VI activation of buffer mana...

Page 76: ...e controller type see overview on page 1 The setting options in the following table are accessible via a parameter After the functionality is reduced the controller functions according to the set cont...

Page 77: ...X X X X X X 8 233BC X X X X X X X X X 9 223BC X X X X X X X X X 10 2233BC X X X X X X X X X X 11 2BVV X X X X X X X X 12 23BVV X X X X X X X X X 13 233BVV X X X X X X X X X X 14 223BVV X X X X X X X X...

Page 78: ...EbV Product documentation THETA NORM UNIT 6 8...

Page 79: ...temperature Is required for the calculation of the required flow temperature of the heating circuits Is the mathematical mean value of the current outside temperature and the long time value 7 1 2 Bui...

Page 80: ...or by Honeywell For more information see Features of fuel value heat generator via data bus MCBA C Page 8 16 7 1 5 Error display outdoor sensor during MCBA operation MCBA boiler controls also use the...

Page 81: ...erating mode Automatic Function Switches off the heating operation at outside temperatures above the set room temperature Switch off The switch off is enabled if the mean outside temperature ex ceeds...

Page 82: ...he outside temperature current value drops below the set limit the heating is turned on again The heating is interrupted if the outside temperature exceeds the set limit by 1 K Operation with Room Tem...

Page 83: ...ature drops below the set value heating is activated Once the set flow temperature has reached the set room temperature and the set time SYSTEM PARAMETER 19 has expired the demand value to the heat ge...

Page 84: ...umps are switched on every day for approx 20 seconds to protect against blocking owing to corrosion in case of long switch off periods 24h and the mixers are opened temporarily during this period This...

Page 85: ...ent start up protection The heating up characteristic is the same as for unlimited start up protection meaning the heat generator remains in operation until the set minimum temperature plus half of bu...

Page 86: ...ment If there is no demand from the heating or DHW the boiler will be switched off The minimum limit is deactivated If the temperature in the heat generator drops below the heat generator frost protec...

Page 87: ...e burner is switched off without a malfunction message Application for example as external burner switch off or enabling in case of the interruption of the H GEN sensor Caution Only Ag hard silver Au...

Page 88: ...d stage II This switching differential is superimposed symmetrically to switching differential I and must always be set at a higher value Note This setting is overlapped by the cascade setting during...

Page 89: ...ages operate without limitations Time out during start up release Stage II is switched on according to the set time delay Note This setting is overlapped by the cascade setting during cascade mode and...

Page 90: ...l minus 2K the heat generator is enabled again If several heat generators are controlled though one device condensing burners 2 stage burners all stages of the device will be disabled Basic load offse...

Page 91: ...n point is below the setpoint overshoot reserve Also when the heat demand is low especially in the low load range the temperature will drop only slightly because the burner is switched on again as soo...

Page 92: ...proportional band Xp determines the appropriate readjustment of the respective actuator in the burner according to the new setpoint Example At a maximum heat generator temperature of 70 C the actuator...

Page 93: ...es to its normal control characteristics defined by the modulation parameters Connecting THETA UNIT If installing the THETA UNIT type connect as follows Connection burner ON to tx of burner 1 see 12 2...

Page 94: ...he standard deviation at the common flow sensor is calculated using a PI algorithm The same PI controller is used for this as for the adjustment in H GEN type 4 same parameters 8 1 10 Flue Gas Tempera...

Page 95: ...ctive only if the function charging pump was assigned in the Hydraulic menu to one of the outputs Direct circuit pump Variable output 1 or Variable output 2 Function For each heating and DHW demand a...

Page 96: ...enerators which are not in operation The variable output controls a boiler circuit pump with spring non return valve or an engine driven butterfly valve The function is activated directly when there i...

Page 97: ...and parallel heat generator release is allowed The temporary interruption Solar Solid fuel and the external heat generator block influence the PHR output 8 1 15 Return control To prevent the return fl...

Page 98: ...ction If the control unit is equipped with a mixer output this output can be programmed for controlled flow mixing In this mode of return control the programmed mixing circuit adjusts the return tempe...

Page 99: ...nnected a parameterised return flow temperature is transferred to the heat generator as a demand 8 1 16 When to activate boiler sensor 2 Function A second heat generator can be connected to a variable...

Page 100: ...stment of the boiler temperature is no longer dependent on the measured boiler temperature but on the common flow sensor The boiler sensor keeps monitoring the minimum and maximum boiler temperature o...

Page 101: ...A maximum of 8 condensing boilers with MCBA boilercontrol can be controlled by a standard unit The difference in the condensing boilers takes place via different addresses at the interface RMCI Effec...

Page 102: ...Forced discharge Forced discharge to the subsequent heating circuits should take place when the DHW maximum temperature is exceeded necessary because e g pellet boilers are controlled in the same way...

Page 103: ...a constant room temperature is the exact setting of the heating characteristic curve see also the Heating Characteristic Curve section of the relevant heating circuit as well as a correct design of t...

Page 104: ...the measurement period excessive ventilation is to be avoided The measurement period covers basically the heating phases If the heating characteristic is correctly set the room temperature remains con...

Page 105: ...ceeds the set frost protection limit The heat generator minimum temperature limit is deactivated The heating circuit pump is switched off with a short delay in order to avoid a safety switch off owing...

Page 106: ...ressive heating characteristic curves for general ventilator application with high start temperatures 8 2 1 4 Heating Circuit Temperature Limitation NOTE This function is not active if the heating cir...

Page 107: ...e is carried out in parallel with the flow temperature Application Base correction of the heating characteristic for adjustment to the desired room temperature without changing the room setpoint 8 2 1...

Page 108: ...t concerned are switched off The respective heating circuit operates independent of the operating mode switching times as a constant temperature controller An active screed function can be deactivated...

Page 109: ...ting at 25 C is maintained till midnight The heating function for floor covering sets in at 00 00 h on the following day Time profile of the screed function for floor cover heating Step 1 2 Function h...

Page 110: ...No display of the current room temperature is provided in the system information if the room influence is off The feed temperature is corrected purely by atmospheric conditions Room sensor enabled ro...

Page 111: ...temperature axis so that the deviation is compensated The amount of the displacement depends on the setting of the room factor The following relation applies Corrected room setpoint adjusted room set...

Page 112: ...value found through adaptation is not stored The larger the deviations the larger the correction steps the smaller the deviations the smaller the corrections The heating curve is newly adapted wheneve...

Page 113: ...e switching differential If the room temperature of the relevant heating circuit exceeds the current daytime or reduced room setpoint by the set switching differential the heating mode is temporarily...

Page 114: ...m temperature is reached Calculation of the advanced switch on time room setpoint at the start time adjusted switch on time max optimization time setting parameter design outside temperature climate z...

Page 115: ...automatic mode the controller is in reduced mode which means no advance takes place between 2 consecutive heating cycles with different room setpoints the new room setpoint temperature is higher than...

Page 116: ...evel of the heat generator temperature after about 17 minutes with the mixer fully opened The curve tangent through the inflection point indicates a delay time of 5 minutes The resulting optimum adjus...

Page 117: ...on ensures that the valve is at the required limit stop Application Adjustment time Floor heating and other static heating surfaces 10 30 min Radiator heating 6 10 min Convector heating 3 6 min Operat...

Page 118: ...8 3 Domestic hot water control B 8 3 1 DHW Tank Loading DHW Function The output controls at request a DHW loading pump during the relevant operating times DHW Day Domestic Hot Water daytime temperatur...

Page 119: ...protection function can be activated to eliminate the legionella germs in the tank In order to completely kill all germs the Legionella protection temperature should be set at least at 50 C The setti...

Page 120: ...rature in the DHW tank according to the aforementioned set value The desired water heater daytime temperature to be set at the user level is limited by this parameter CAUTION Hot water maximum tempera...

Page 121: ...until DHW tank loading is finished Priority separation circuit Tank loading is carried by means of a three way changeover valve the heating circuit pump is also the DHW loading pump At the end of the...

Page 122: ...ng enabling The current DHW temperature is lower than the DHW setpoint by half the amount of the DHW switching differential Loading abort The current DHW temperature exceeds the DHW setpoint by half t...

Page 123: ...on interval no pulse Econ interval Period duration Econ interval Pulse Example In case of a pulse time of 5 minutes and a period of 20 minutes the circulation pump runs for 5 minutes while the final p...

Page 124: ...solar function makes it possible to combine solar panels with heating and DHW systems in order to support the economy of the system The Solar loading pump can be controlled according to various condi...

Page 125: ...ction defines the loading mode Solar priority mode During solar loading the heat demand is not sent to the heat generator when it is not active An active heat generator stays in operation until the ne...

Page 126: ...if such input is available Any commercial flow meter can be connected to the pulse input Reset heat balance Reset heat balance only if heat balancing is activated If the heat balancing is active the...

Page 127: ...erator supplies the buffer or heating or DHW circuits with the necessary extra energy If no controlled heat generator is used e g heating by wood boilers only buffer functions such as forced dissipati...

Page 128: ...es are illustrated using exemplary hydraulics layouts Operating mode 1 Charging control HC and DHW requests System hydraulics Heating circuit and hot water control send their demand value to buffer co...

Page 129: ...ontrol HC and DHW requests System hydraulics Heating circuit and hot water control send their demand value to buffer control The BULP PLP input switches ON when the energy demand can be met by the buf...

Page 130: ...ess See the table below for detailed correlations Operating mode 5 Loading control with DHW switchover System hydraulics The heating circuit controls send their demand value to buffer control Hot wate...

Page 131: ...Buffer start up protection acts on HC DHW HC HC DHW HC HC Buffer discharge protection X X X Buffer frost protection monitoring X X X Buffer minimum temperature monitoring X X X Buffer maximum temperat...

Page 132: ...ts are always supplied with energy from the heat generator As long as the buffer contains sufficient energy the heat generator will be heated via the buffer loading pump instead of the burner If the e...

Page 133: ...ting circuits into which the forced dissipation is routed are determined by the respective parameter Adjustments OFF no heat dissipation DHW charging pump only with additional tank excess energy is pu...

Page 134: ...uffer nominal temperature This measure prevents any rear buffer discharge through the heat generator The buffer loading pump is disabled again as soon as the temperature difference between the heat ge...

Page 135: ...er If the temperature of the solid fuel boiler is 10 K higher than the low limit the solid fuel loading pump will be switched on If it falls below the low limit it will be switched off Maximum tempera...

Page 136: ...itching between loading through the solid fuel boiler and loading through a conventional oil gas heat generator After the solid fuel loading pump has been switched off the set time must pass before lo...

Page 137: ...itch on requirement for charging the primary tank is fulfilled the charging in the primary tank is started immediately This check does not take place if the actual temperature of the primary tank swit...

Page 138: ...added The final switch off setting is independent of the preset solar panel maximum temperature and can be lower than the latter In this way there are independent forced switch on and forced switch o...

Page 139: ...uffer release charges the top buffer area and the heating circuits are switched on Then the HBR valve switches over so that the whole buffer is loaded If the output is unswitched the buffer is loaded...

Page 140: ...vated at a mixer output a flow sensor must be installed to adjust the flow temperature If priority DHW charging is active the heating circuit is switched off 8 11 Fixed Value Control 2 or 3 Function A...

Page 141: ...and switching time settings are not effective when the demand contact is active The heating circuit only reacts to requests from the demand contact The operating modes Manual Emission measurement wit...

Page 142: ...e control circuit Activated malfunction messages can be transferred to the data bus or can be registered via a global malfunction message output Up to 3 different malfunction message inputs can be use...

Page 143: ...e controller Important Multi controller function for data bus systems with several standard units Contact function Depending on the value of the input the following modes for the controller are possib...

Page 144: ...tion This function displays a temperature value in the information display as an info value which is registered by a standard sensor The function is not influenced by a controller and is only for your...

Page 145: ...es in the buss system are assigned precise addresses This is set in the corresponding parameter in the parameter tree BUS The assignment occurs according to the following table NOTE Make sure that one...

Page 146: ...charge blocks all other heating circuits and charging in the bus system If the accumulator is charged in parallel mode all heating circuits in the system can keep running and other charging can also b...

Page 147: ...dresses are not allowed and will lead to data transmission errors and consequently to control malfunctions of the heating system Changing a bus address A bus address is can be changed at a later stage...

Page 148: ...ard unit every 20 s Operating mode adjustment The desired operating mode is selected with the key keep pressed approx 2 3 seconds and indicated by the corresponding LED As the key is pressed the opera...

Page 149: ...e standard unit by 6 K compared to the central position Turn clockwise Temperature increase Turn anti clockwise Temperature decrease Status indication The status indication is realized by three LEDs T...

Page 150: ...the respective user Application Tenant status Extended access This access status allows access to all heating circuits and to the hot water circuit and their parameters and switching times within the...

Page 151: ...ed to the first controller with busadress 10 Outdoor sensor Stage 1 and 2 of the burner Boiler sensor DHW sensor Domestic hot water charging pump Mixer pump mixer open closed and flow sensor of heatin...

Page 152: ...agram shows the hydraulic system 9 4 Unrestricted use of Gateway GWK Starting in software version 2 x the Gateway Web THETA GWK will be available to the full extent To this end all standard units in t...

Page 153: ...nnected to a central device In cascade operation an additional cascade selection level is displayed for handling the parameters in the central device assigned to bus address 10 NOTE Cascade operation...

Page 154: ...its or if several condensing boilers are switched by a single standard unit Leading stage The leading stage can still be set manually to any existing stage even when automatic stage sequence switching...

Page 155: ...100 FTnom 100 The boiler temperature of the leading boiler or the common flow sensor has to have been below the set boiler temperature minus half the switching differential at least as long as the ca...

Page 156: ...m is determined and activated for control The registry of the burner running time only influences the boiler control with the smallest address For condensing boilers the switch over power may also be...

Page 157: ...ddressed either via the interface e g MCBA or directly Because only one parameterization is possible for heat generators in THETA the settings are identical for all H GEN in the subcascade System over...

Page 158: ...ay of heat generator address and actual flow temperature of the boiler control with the address 1 Heat generator temperature H GEN address 2 HEAT GENER ADR 2 actual value Combined display of heat gene...

Page 159: ...int is calculated using the PI algorithm The stages operating at basic load mode are also monitored concerning the required value This may not become smaller than the required value If the capacity is...

Page 160: ...lue is forwarded to the energy management module of cascade control and adjusted by the available boiler stages Emission measurement This function works as described under Emission measurement with th...

Page 161: ...ors adjust to the same boiler nominal temperature parallel operation As soon as the cascade manager comes back into operation cascade control is reactivated automatically Data transmission To enable t...

Page 162: ...EbV Product documentation THETA NORM UNIT 10 10...

Page 163: ...an be enabled at any time again for a day day change by the system parameter Manual activation Manual call up of the AUTO SET function is always possible The call up is activated by pressing the press...

Page 164: ...ist Function By keeping the rotary pushbutton pressed during an emission measurementthe integrated heat generator maximum temperature limit is bypassed the heat generator remains in function continuou...

Page 165: ...Level heat generator Parameter 1 3 Switching sequence OFF HG 1 HG 1 2 HG 2 OFF d modulating mode Level heat generator Parameter 1 4 Switching sequence OFF ON OPEN STOP CLOSE OFF Pumps VOs Test Pumps U...

Page 166: ...isplay address problems such as double addresses or not recognizing addresses within the data bus system They appear with the corresponding error message depending on the version and allocation 5 Alar...

Page 167: ...ystem Flow sensor 2 break 18 0 MCP off MIMO de energized System Flow sensor 2 short circuit 18 1 MCP off MIMO de energized System Solar panel sensor break 19 0 System Solar panel sensor short circuit...

Page 168: ...error message the message Heat system appears If there is a defect in the heat generator error message 30 1 or 31 3 and the plant frost protection is active the boiler corrosion protection is switche...

Page 169: ...alues of the connected sensors do not match the actual temperatures calibration of the sensor values is possible with the Sensor Calibration parameter menu In this level all the sensors connected to t...

Page 170: ...EbV Product documentation THETA NORM UNIT 11 8...

Page 171: ...corresponding to the identification on the coloured marked connection pads All blue marked connecting terminals X1 work with safety low voltage and must not get into contact with the mains voltage At...

Page 172: ...ixing valve 1 CLOSED 32 Variable input 3 9 Pump for mixed heating circuit 1 33 Flow sensor for mixed heating circuit 2 10 Variable output 1 34 Solar panel flow sensor 1 11 Variable output 2 35 Solar t...

Page 173: ...ed screws Removal is done in opposite direction The sensor of the safety temperature limiter as well as the boiler sensor will be inserted into the sensor immersion pocket of the boiler Caution Do not...

Page 174: ...mains voltage At non observance the instrument will definitely be destroyed and the warranty is no longer valid Caution Mains voltage connecting terminals Red marked connecting terminals principally...

Page 175: ...18 Flow sensor for mixed heating circuit 2 06 Direct circuit pump 19 Variable input 1 07 Domestic hot water charging pump 20 Variable input 2 08 Pump for mixed heating circuit 1 21 Variable input 3 09...

Page 176: ...no cable duct is used 2 Turn locking screws 1 horizontally and pull off terminal covers to the side 3 Fix wall socket on a flat background using enclosed screws and plugs Use the enclosed drill patter...

Page 177: ...ging the instrument into the terminals at the socket print Lock standard unit with both quick clamping devices left and right NOTE Cables with mains voltage must be installed separate from low voltage...

Page 178: ...P Unmixed circuit pump SOL P DHW charging pump MCP1 Pump for mixed heating circuit 1 MCP2 Pump for mixed heating circuit 2 1 K 5 actuator mix valve 1 OPEN 1 K 3 actuator mix valve 1 CLOSED 2 K 5 actua...

Page 179: ...sed to direct sunlight seasonal variations should be taken into account close to heat producing appliances televisions refrigerators wall lamps radiators etc onto walls heated by under plaster heating...

Page 180: ...leting the electrical wiring hang remote unit conclusively on top side according figure on page 11 and turn down until it clicks into the wall socket 12 4 3 Data bus addressing To connect one or more...

Page 181: ...ers or niches shelves or behind curtains insufficient circulation close to doors of rooms which have no heating influence of cold air in leaky wall cavities cold air influence caused by chimney effect...

Page 182: ...EbV Product documentation THETA NORM UNIT 12 12 Remote unit open front cover removed Contact strip Rotating encoding switch for setting bus address...

Page 183: ...y The cable outlet must be directed downwards in order to avoid the intrusion of moisture Electrical installation 1 Install sensor cable to the sensor location 2 Loosen lid screws and remove top 3 Mou...

Page 184: ...s or other heat sources Bend clutch spring to sensor top and insert sensor together with the capillary sensors of boiler thermostat KTR safety temperature limiter SLT and boiler thermometer KTA into t...

Page 185: ...as return flow sensors Controlled flow temperature addition by means of mixing valve Bypass circuit by means of a bypass pump Montage Clean flow pipe thoroughly and put thermal conduction paste to pip...

Page 186: ...of the double tube diameter In the immersion sleeve of the solar collector Mounting in the flue gas tube Mount sensor clamp according to illustration below Determine immersion depth into the core flo...

Page 187: ...Casing dimensions 144 x 96 x 75 mm B x H x D Casing material ABS antistatic Electrical connections Plug in terminal connections Installation recommendations Cables with mains voltage power supply burn...

Page 188: ...1039 02 85 1327 99 150 1573 15 300 2120 19 20 1077 93 90 1347 02 160 1610 43 320 2191 15 25 1093 46 95 1366 03 170 1647 60 340 2261 66 30 1116 72 100 1385 00 180 1684 65 360 2331 69 40 1155 39 105 140...

Page 189: ...rature 8 35 DHW tank sensor 2 8 39 Data bus addresses 9 1 Daytime Room Temperature 5 2 Daytime Water Heater Temperature 5 3 Demand contact 8 57 Digital inputs measuring ranges 14 2 Domestic Hot Water...

Page 190: ...lay Function Test 11 3 Reset Parameter 5 35 Reset heat generator 8 6 Return control 8 13 Return mix 8 13 Room Controller 8 28 Room Influence 8 26 Room factor 8 27 Room frost protection limit 8 29 Room...

Page 191: ...Temperature displays 5 12 Thermostat 8 36 Time delay stage II 8 5 Time programs 5 32 Timer 8 58 User interface 5 1 Variable inputs and outputs 6 4 Weather controlled heating operation 8 19 Weather re...

Page 192: ...PD_THETA NURS_EbV_GB_0460017001_0612 23...

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