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Technische Alternative HZR 65, Operation And Installation Instructions Manual

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Technische Alternative HZR 65 Operation And Installation Instructions Manual Download Page 23

23 

Diagram 128:

 

Buffer tank, heating circuit via pre-mixed district heating pipe, 

switch-over valve hot water, heating requirement resp. feed pump

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Sensors 

Outputs 

T1…. Buffer tank top  

A1…. Heating circuit pump 

T2…. Buffer tank bottom  

A2…. 3-way valve hot water tank 

T3…. Hot water tank 

A3…. Mixer open 

T4…. Heating circuit flow  

A4…. Mixer close 

T5…. Outdoor temperature 

A5…. Burner requirement 

T6…. Room sensor 

 

Basic function (P128):

 Heating circuit is supplied by pre-mixed district heating pipe. Heating 

circuit  pump 

A1

  runs  for  hot  water  requirement  too;  3-way  valve 

A2

  opens  for  hot  water 

requirement. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

A1 = T1 > min1 & (heating = active) or A2 (hot water requirement) 

 

 

A2 = T1 > min1 & T1 >T3 + diff1 & T3 < max 

 

 

A5 on = T1 < min2  

 

 

 

 

 

 

 

 

A5 off = T1 > min2 + diff2 

A5 = burner 
requirement 

Required settings: 

 

min1 

…switch-on thresh. T1  

   

A1,2   min2 

…boiler requirement T1      

   

A5 

max  

…limit hot water tank T3 

   

A2     

diff1 

…buffer T1 – hot water tank T3   

   

A2       diff2 

… buffer T1 – min2   

   

A5

 

V

max

, V

min, 

T+20, T-20, T

norm

, T

abs, 

mixer control parameter Mr 

heating pump parameter HPu, time program, 

        

A1 off                  A2 off 

       T1 < min1           T1 < min1 
 
 
                                            diff1            
   

A1 on 

                              

A2 + A1 on

             

 
 
 
Switch-off cond. HPu   T3 > max  
          

A1 off

                  

A2 off

               

 

Burner requirement 

A5 

ON

 

T1 < min2 

 

OFF 

T1 > min2 + diff2 

 

Summary of Contents for HZR 65

Page 1: ...HZR 65 Version P5 6 7 EN Universal heating controller Operation Installation instructions en ...

Page 2: ......

Page 3: ...rcuit pump solar collector 22 Diagram 128 Buffer tank heating circuit via pre mixed district heating pipe switch over valve hot water heating requirement resp feed pump 23 Diagram 144 Automatic boiler tank mixer for increasing return heating circuit pump burner requirement 25 Installing instructions 27 Installing the sensor s 27 Installing the unit 28 Electrical connection 28 Data line DL 29 Selec...

Page 4: ...ltage connections sensor connections with the 230V connections De structive and life threatening voltages at the device and the connected sensors may occur For safety reasons the system should only be left in manual mode when testing In this operating mode no maximum temperatures or sensor functions are monitored Safe operation is no longer possible if the controller or connected equipment exhibit...

Page 5: ...hen the calculated nominal flow temperature Vsoll falls below the adjusted minimum flow temperature Vmin The mixer will be closed when the heating pump is switched off The temperature threshold for frost protection mode is set to 5 0 C ex works and the mixer operating mode to outdoor temperature control Atr Frost protection heating circuit The heating circuit pump A1 will be switched on under cert...

Page 6: ...r and buffer temperature activation of buffer feed pump A2 burner requirement applying to buffer A1 T1 min1 or T2 min2 heating active A2 T1 min1 T1 T3 diff1 A5 T2 max A1 off A2 off T1 min1 and T2 min2 T1 min1 diff1 A1 on A2 on Switch off cond HPu T3 A1 off Required settings min1 switch on thresh T1 A1 2 min2 switch on thresh T2 A1 max burner requirement T2 A5 diff1 boiler T1 buffer T3 A2 diff2 see...

Page 7: ...oll diff2 heating active A5 off T3 Vsoll diff2 Program 6 Separated switch on and switch off thresholds for burner requirement Burner requirement refers to nominal flow temperature Vsoll A5 on T2 Vsoll diff2 heating active A5 off T2 max Program 7 Separated switch on and switch off thresholds for burner requirement Burner requirement refers to nominal flow temperature Vsoll switch off threshold re f...

Page 8: ... Switch off the burner requirement when nominal tank temperature max is reached Tank feed pump is still active until boiler temperature falls below min1 for discharge of the boiler residual energy Required settings min1 switch on thresh T1 A1 2 min2 switch on thresh T1 A5 max limit tank T2 A2 5 diff1 boiler T1 tank T2 A2 diff2 boiler T1 Vsoll A5 Vmax Vmin T 20 T 20 Tnorm Tabs mixer control paramet...

Page 9: ...ating not active A5 on T2 max tp A2 or T1 min2 or T1 Vsoll diff2 heating active A5 off T3 max tp A2 T1 min2 T1 Vsoll diff2 heating active all programs 4 as program 16 but feed pump function A2 refers to T2 A2 T1 min1 T1 T2 diff1 T2 max independent from heating all programs 8 as program 16 but burner requirement is only referring to demand of heating circuit and tank feeding and not to comparison t...

Page 10: ...al speed control function for boiler flow A2 A1 T3 min2 heating active A2 T1 min1 T1 T3 diff1 A5 T2 max or T3 Vsoll diff2 heating active Required settings min1 switch on thresh T1 A2 min2 switch on thresh T3 A1 min2 additional used with programs 33 34 max limit T2 T3 A5 diff1 boiler T1 tank c T3 A2 diff2 Vsoll tank cent T3 A5 Vmax Vmin T 20 T 20 Tnorm Tabs mixer control parameter Mr heating pump p...

Page 11: ...ment are separated A1 T2 min2 heating active A2 T1 min1 T1 T3 diff1 A5 T3 max all programs 8 Buffer feed pump A2 is switched on immediately with burner requirement for fuel value units with minimum circulation quantity of water A2 A2 or A5 Time programs are possible for heating circuit A1 and burner requirement A5 For A5 the time program manages only on the hot water requirement A2 because the bur...

Page 12: ...1 hot water feed pump A2 burner requirement A5 A1 T1 min1 heating active A2 T1 min1 T1 T3 diff1 T3 max A5 on T1 min2 A5 off T1 min2 diff2 Required settings min1 switch on thresh T1 A1 2 min2 switch on thresh T1 A5 max limit hot water tank T3 A2 diff1 buffer top T1 hot water tank T3 A2 diff2 buffer top T1 A5 Vmax Vmin T 20 T 20 Tnorm Tabs mixer control parameter Mr heating pump parameter HPu time p...

Page 13: ...in1 or T1 T3 diff1 or T1 Vsoll diff2 heating active A5 off T2 min2 T3 max Program 54 55 as programs 52 53 but A2 hot water has priority to A1 A1 54 55 A1 only if not T3 max tp A2 all programs 8 Second heating source besides buffer with sensor T2 All conditions at T1 apply to T2 too The higher temperature is active All conditions only at T2 remain unchanged Example Program 56 48 8 A1 T1 min1 or T2 ...

Page 14: ... buffer tank tem perature have exceeded their minimum thresholds controlling of hot water tank feed pump A2 mixer control A3 A4 Controlling of buffer tank feed pump A5 A1 T1 min1 or T2 min2 heating active A2 T2 min2 T2 T3 diff1 T3 max A5 T1 min1 T1 T2 diff2 T5 T6 T7 Required settings min1 switch on thresh T1 A1 5 min2 switch on thresh T2 A1 2 max limit hot water tank T3 A2 diff1 buffer T2 hw tank ...

Page 15: ...om sensor T2 to sensor T7 tank bottom when buffer feed pump A5 is required As no information exists about the top tank temperature at that time it is necessary to use program 65 64 1 to make sure that the boiler temperature T1 has alternative information for switching hot water tank pump A2 Schematic wiring diagram and operation mode The temperature of sensor T7 is displayed instead of sensor T2 w...

Page 16: ...ot employed as room sensor but as reference sensor for feeding buffer tank tank bottom Outdoor temperature control for heating circuit is not possi ble not usable with all programs 2 Note Setting in menu mixer control parameter Mr Fir fixed value control or using a room sensor rtr room temperature control A5 T1 min1 T1 T5 diff2 all programs 8 Potential free contact A5 is linked out with output A2 ...

Page 17: ...ive A2 T1 T3 diff1 T3 max A5 T2 min2 Program 81 Burner requirement referring to nominal flow temperature Vsoll time program for A1 defines the burner requirement for heating circuit time program linked with A5 hot water service A5 T2 min2 or T2 Vsoll diff2 heating active Required settings min1 switch on thresh T2 A1 min2 switch on thresh T2 A5 max limit tank bottom T3 A2 diff1 Coll T1 Tk bottom T3...

Page 18: ... T2 T6 diff2 T6 min2 Program 83 A5 is a hot water tank feed pump Therefore the sensor T6 is situated in the boiler Note T6 must be set as standard sensor Std see selector switch position Mod Par Heating circuit pump A1 is enabled by buffer tank or boiler temperature A1 T2 min1 or T6 min2 heating active A5 T6 min2 T6 T3 diff2 Program 84 Enable of heating circuit pump A1 without observance of any en...

Page 19: ... T2 diff2 Program 86 A1 and A2 as program 85 but A5 refers to T6 no room sensor Note T6 must be set as standard sensor Std see selector switch position Mod Par A5 T1 min1 T1 T6 diff2 Time programs are possible for heating circuit A1 solar circuit A2 and burner requirement A5 A1 off A2 off A5 off T2 min2 T1 min1 T1 min1 diff1 diff2 A1 on A2 on A5 on Switch off cond HPu T3 max T2 A1 off A2 off ...

Page 20: ...A4 controlling of the second heating circuit can be reached by absolute value control of pump speed control A1 T1 min1 heating active A2 T1 min1 T1 T2 diff1 T2 min2 A5 T1 min1 T1 T3 diff2 T3 max Required settings min1 switch on thresh T1 A1 2 min2 limit T2 A2 max limit tank bottom T3 A5 diff1 boiler T1 h c 2 T2 A2 diff2 boiler T1 tk bott T3 A5 Vmax Vmin T 20 T 20 Tnorm Tabs mixer control parameter...

Page 21: ...T3 holding circuit A5 on T1 max A5 off T3 max diff2 Program 104 as programs 98 resp 100 but burner requirement refers to nominal flow temperature and basic temperature hot water A5 on T1 max or T3 Vsoll diff2 heating active A5 off T1 max and T3 Vsoll d fiff2 heating active all programs 1 The heating function heating active refers also to output A2 A2 T1 min1 T1 T2 diff1 T2 min2 heating active Time...

Page 22: ...A5 will be switched off when T4 Vsoll diff2 A1 according to description above A2 T1 min1 T1 T2 diff1 T2 max A3 T1 T3 diff2 A4 T3 min2 A5 T3 min2 or heat pump requirement for heating Program 113 As program 112 but heating circuit pump is switched of when hot water requirement occurs hot water priority Required settings Vsoll nominal flow temperature min1 switch on thresh T1 A2 min2 hot water requir...

Page 23: ... pipe Heating circuit pump A1 runs for hot water requirement too 3 way valve A2 opens for hot water requirement A1 T1 min1 heating active or A2 hot water requirement A2 T1 min1 T1 T3 diff1 T3 max A5 on T1 min2 A5 off T1 min2 diff2 A5 burner requirement Required settings min1 switch on thresh T1 A1 2 min2 boiler requirement T1 A5 max limit hot water tank T3 A2 diff1 buffer T1 hot water tank T3 A2 d...

Page 24: ... switch position Mod Par In position Par the use of sensor T6 must be set rAS T6 is used as room sensor Std T6 is no room sensor frost protection at T5 keeps active Setting in menu mixer control parameter Mr Atr outdoor temperature control or Fir fixed value control A1 T2 min2 heating active or A2 A2 T2 min2 T2 T3 diff1 T3 max A5 T1 min1 T6 diff2 Program 131 As program 130 Exchange of A2 with A5 A...

Page 25: ...urner requirement A5 holding circuit heating circuit control can be applied by pump speed control A1 T1 min1 T1 T3 diff1 A2 T5 min2 T5 T6 diff2 T6 max A5 on T2 Vmin A5 off T3 Vmax Required settings min1 switch on thresh T1 A1 min2 switch on thresh T5 A2 max heating circuit return line T6 A2 diff1 boiler T1 tank T3 A1 diff2 tank T5 heating circuit T6 A2 Vmin burner requirement onT2 A5 Vmax burner r...

Page 26: ...by thermostat threshold min2 T5 outdoor temperature A2 T2 min2 heating active Program 146 As Program 144 but heating circuit pump is switched by controlled system T2 T6 instead of T5 T6 A2 T2 min2 T2 T6 diff2 T6 max Time programs are possible for A2 and A5 ...

Page 27: ...the tank if necessary In this case attention should be paid to achieving a long term secure seating e g cable fastening Clip on sensor Optimally secured using roll springs pipe clamps or hose band clips to the line Make sure the material used is suitable corrosion temperature resistance etc Finally the sensor must be well insulated so that the exact pipe temperature is recorded without being influ...

Page 28: ...essional electrician in accordance with the relevant local guidelines The sensor lines may not be fed through the same cable channel as the supply voltage Notice The system must be grounded to protect it from damage by lightening according to regulations sensor failure caused by electrical storms or electrostatic charging can usually be traced to insufficient grounding All sensors and pumps resp v...

Page 29: ...outputs and is suitable as interface to the PC for transferring the measured temperatures and output states Any cable with a cross section of 0 75 mm can be used for the data link e g twin strand having a max length of 30 m For longer cables we recommend the use of shielded cable Interface to PC The data is cached via the data converter D LOGG or boot loader BL NET and transferred to the PC on req...

Page 30: ...2 sensors T1 T6 Actual temperature of the sensors min1 2 The minimal threshold min generally prevents boilers from being clogged with soot The hysteresis has an increasing effect i e reaching the threshold plus hysteresis the output will switch on falling below the threshold it will switch off Factory setting ex works ew min1 60 C min2 30 C setting range 0 to 150 C max The maximum function limits ...

Page 31: ...31 Schematic representation of setting values ...

Page 32: ...een several modes ew Aut Aut automatic mode FEI holiday function nor hold heating mode UrL vacation function AbS lowering mode Stb standby function PAr party function Par Input of parameters for functions defined under Mod Aus gang Output Each output can be selected by pushing the blue keys auf ab and can be set to Ein On Aus Off or AUTomatic mode by pressing the keys Eingabe and auf ab simultaneo...

Page 33: ... A change of these values should only be done if the user has knowledge of all functions as these settings can change the basic features of the controller Different parameters are stored in sub menus Mr Mixer control parameters Hpu Settings for heating circuit pump LES Legionella protection function SEn Sensor type switch over between KTY and PT1000 PnL After running time Hst Hysteresis setting of...

Page 34: ...ll be kept at the level set in adjustment Tabs No selection of parameters Party mode PAr Party mode keeps the room temperature at the level of normal heating mode For this case the time must be set in Par at which the automatic mode should start again Note PAr Party operation mode not to confuse with Par Parameter Holiday mode FEI When selecting this function and input of number of coming public h...

Page 35: ...the controller detects the values of the sensor Frost protection conditions for heating circuit The frost protection limit is set in mode Stb Standby as parameter Factory setting 5 C setting range 0 99 C Mode Par setting in mode Aut Frost protection activation of heating circuit pump decreasing the frost protection limit Automatic lowered normal rAS only by room sensor T6 independent from outdoor ...

Page 36: ...king at the diagram it is possible to detect the nominal flow temperature at a certain outdoor temperature In addition it is possible to limit the flow temperature to top and bottom with the values Vmax resp Vmin Setting Setting the flow temperature at outdoor temperature 20 C Selection position T 20 with the selector switch changing the value by pushing the blue ab auf keys to the desired value S...

Page 37: ...week day by day Monday to Sunday or blocked for work days WT Monday to Friday Following principles of programming switch time function have to be observed The same time programs can be allocated to several outputs and or weekdays For this purpose in position ZP A one day after the other must be selected or with WT the block Monday to Friday and a time program allocated to the desired output If no ...

Page 38: ... A5 depending on program 1 time program 1 with 6 possible switching points Short tap causes switching over between output A1 A2 A4 and A5 depending on program Exit from menu happens by pressing the yellow Eingabe key for 2 seconds turning the selector switch or automatically after one minute At the end of setting and allocation of time programs it is very important to set the actual weekday before...

Page 39: ...s entry to the main menu The display shows the first sub menu Mr Mixer control parame ter Advance A short tap on the yellow Eingabe key switches over to the next sub menu e g HPu Heating circuit pump parameter Entry to sub menu Pressing the yellow Eingabe key for 2 seconds causes entry to the sub menu Possibility of 8 sub menus provides clear program structure Advance in sub menus Advance in the s...

Page 40: ...r temperature n is the time in which the average of out door temperature is calculated ew 5 Setting range 0 to 15 Selection of mode Setting of mixer run time Averaging time outdoor temp Percentage of room influence short short short The controller calculates the averaging time of outdoor temperature over an integration time of 2n minutes n 6 means an average time of 26 64 minutes 2 sec 2 sec Menu ...

Page 41: ... time of 10 hours Setting range 0 to 9 ex works ew 0 Outdoor temperature control factory setting Exit from menu happens by pressing the yellow Eingabe key for 2 seconds turning the selector switch or automatically after one minute Percentage of room influence Increase of switch on power Input loop starts again short short ...

Page 42: ...temperature control Flow temperature changes according to the heating characteristic T 20 and T 20 depend ing to outdoor temperature between limits Vmin and Vmax Flow temperature is corrected according to room influence factor r when room temperature differs from Tnorm resp Tabs Switch over between normal heating and lowering mode occurs by allocation of a time win dow to output A1 dtr Difference ...

Page 43: ...Yes Switch off active A n No pump keeps on running Average outdoor temperature increas ing this temperature causes switch off Setting range 0 to 99 C ew 20 C n Power for calculation of average outdoor temperature Setting range 0 to 15 ew 5 2 sec 2 sec short short short short short Switch off heating circuit pump when nominal room temperature is reached Hysteresis of room sensor when switch off is ...

Page 44: ... range 0 to 99 C Mixer behavior when heating circuit pump is switched off ew mS mr Mixer keeps on controlling mS Mixer closes mo Mixer opens mu Mixer unchanged Input loop starts again Exit from menu happens by pressing the yellow Eingabe key for 2 seconds turning the selector switch or automatically after one minute Switch off heating pump when nominal flow temperature Vsoll Vmin short short short...

Page 45: ...lla protection function Setting range 0 to 9 days ew tc 0 h Start time of heating up phase Setting range 0 to 23 11 pm ew h 17 5 pm C Nominal heating up temperature of tank Setting range 0 to 99 C ew C 70 Input loop starts again Exit from menu happens by pressing the yellow Eingabe key for 2 seconds turning the selector switch or automatically after one minute 2 sec 2 sec short short short Setting...

Page 46: ...mi conductor KTY types Factory setting ex works of all sensors is Pt1000 P Selected sensor Setting range F1 to F6 P Pt1000 H KTY semi conductor ex works P Selected sensor Setting range F1 to F6 P Pt1000 H KTY semi conductor ex works P Input loop starts again Exit from menu happens by pressing the yellow Eingabe key for 2 seconds turning the selector switch or automatically after one minute ...

Page 47: ... After running times t1 to t5 can be allocated to outputs A1 to A5 depending on program 2 is the after running time Setting range 1 to 9 10 to 90 sec or 2 to 9 2 to 9 min ex works 0 For programs 112 and 113 additional settings are possible in this sub menu PnL tc Cycle time setting range 0 to 90 min tc0 to tc9 ew tc 3 30 min tr Run time setting range 0 to 9 min tr0 to tr9 ew tr 2 2 min tb Blocking...

Page 48: ... sis The hysteresis of the differential values diff1 diff2 refer to the colder sensor E g if the colder sensor shows 64 C the output is switched on increasing the difference diff hystere sis 3K and switched off decreasing the difference value diff H1 diff 1 H5 max H2 diff 2 H6 frost protection limit H3 min 1 H7 reserve H4 min 2 Example H13 means hysteresis of diff1 with 3K per 64 C All hystereses ...

Page 49: ...re available they can be activated together Absolute value control Maintaining a sensor at constant temperature Differential control Keeps the temperature constant between two sensors Event control If a set temperature event occurs the speed control starts thus keeping a sensor constant Advice Differential control and event control allow setting the temperature sensor T7 In this case T7 means nomi...

Page 50: ...sor T3 increases 60 C sensor T1 will be kept at temperature H ew 60 C h maximum value between 0 to 99 C H maximum value between 100 to 199 C H30 Maximum value 130 C for the second set sensor in position L Example Sensor 1 sensor T1 will be kept at 130 C constantly ew H30 130 C short short short short short short Event control Setting desired temperature C Differential control Setting differential ...

Page 51: ... range 0 to 9 sec ew 5 di Differential part If the nominal value deviates at a speed of 0 5K per second the speed is changed by one increment Higher val ues provide a more stable system but adjustment to the nominal value is slower Setting range 0 to 9 0 to 0 9K we 5 u Lower speed limit Example Lower speed limit 6 Necessary for avoiding pump standstill Setting range 0 to 30 ew 1 n current speed st...

Page 52: ...rating modes Difference temperature adjustable from 0 to 99 C diff Thresholds adjustable from 0 to 150 C min max Hysteresis adjustable from 1 to 9 C per 64 C Speed control 30 speed stages result in change of amount of max 1 10 Temperature display from 50 to 199 C Resolution from 9 9 to 100 C with 0 1 C otherwise 1 C Accuracy typ 0 4 and max 1K in range 0 to 100 C Outputs Triac output 1 and output ...

Page 53: ...C Program Prog 0 Sensor T6 C Version Basic heat curve and mode parameters min1 60 C C Modus Mod Aut min2 30 C C Par rAS max 70 C C diff1 5 0 K K diff2 5 0 K K Vmin 25 C C Vmax 80 C C T 20 70 C C T 20 30 C C Tnorm 20 C C Tabs 15 C C Mixer control parameters Mr Heating circuit pump parameter HPu Mixer control mode Atr Switch off by room sensor r n Mixer run time tL 3 min min Hysteresis room sen sor ...

Page 54: ...erential control F 0 Desired value for F d8 0 K Desired value for F d8 0 K Limiter function L 0 Limiter function L 0 Limit for L b60 C Limit for L b60 C Maximum value for L H30 C Maximum value for L H30 C Proportional part Pr5 Proportional part Pr5 Integral part In5 Integral part In5 Differential part di5 Differential part di5 Minimum speed U 1 Minimum speed U 1 Time programs Zeitprogr Program P1 ...

Page 55: ...y The resistance measured with an ohmmeter should have the following value accord ing to the temperature Temp C 0 10 20 25 30 40 50 60 70 80 90 100 R Pt1000 Ω 1000 1039 1078 1097 1117 1155 1194 1232 1271 1309 1347 1385 R KTY Ω 1630 1772 1922 2000 2080 2245 2417 2597 2785 2980 3182 3392 If the unit does not run when it has power the quick blow fuse 3 15A that protects the control system and the out...

Page 56: ...ed standards EN 60730 1 2011 Automatic electrical controls for household and similar use Part 1 General requirements EN 61000 6 3 2007 A1 2011 Electromagnetic compatibility EMC Part 6 3 Generic standards Emission standard for residential commercial and light industrial environ ments EN 61000 6 2 2005 Electromagnetic compatibility EMC Part 6 2 Generic standards Immunity for industrial environments ...

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Page 60: ...stallation instructions or incorrect maintenance 4 The guarantee claim will expire if repairs or actions are carried out by persons who are not au thorised to do so or have not been so authorised by us or if our devices are operated with spare supplementary or accessory parts which are not considered to be original parts 5 The defective parts must be sent to our factory with an enclosed copy of th...

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