Exodraft EHC20 Mounting, Installation And Operating Manual Download Page 1

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EHC20

Mounting, installation

and operating manual

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Summary of Contents for EHC20

Page 1: ...EHC20 Mounting installation and operating manual GB Read and save these instructions...

Page 2: ...8 Program 6 1 8 Heat exchanger with bypass damper With two storage tanks and a mixer 40 O 9 Program 6 1 1 Heat exchanger with VFS sensor for power measurement 42 P Operation 44 P 1 Display and entry s...

Page 3: ...e should only be used in the manner specified by the manufacturer If you have any questions please contact the manufacturer The address and telephone number of the manufacturer can be found in the lis...

Page 4: ...About the automatic controller The EHC temperature difference controller enables you to efficiently use and check the function of your heat exchanger Above all the device gives you confidence through...

Page 5: ...that the housing is not warped when attached 4 Drill three holes in the wall at the marked places using a drill and 6 bit and insert the rawl plugs 5 Set the automatic controller on the upper screw 6...

Page 6: ...o the housing to exactly behind the strain relief The automatic controller and VFS sensor must have the same earthing potential The VFS sensor has a functional earthing PELV The peripheral unit termin...

Page 7: ...rminal plan for electrical connection max 12 V Extra low voltages max 12 VAC DC Terminals Connection for S1 Sensor 1 S2 Sensor 2 S3 Sensor 3 S4 Sensor 4 S5 Sensor 5 S6 Sensor 6 S7 Sensor 7 S8 Sensor 8...

Page 8: ...nd the circulating pump Mount the S1 temperature sensor in the lower part of the buffer memory VFS is the sensor for heat quantity measurement optionally available A1 is the STB safety temperature lim...

Page 9: ...raturf hlereingang 7 Temperaturf hlereingang 6 Temperaturf hlereingang 5 Temperaturf hlereingang 4 Temperaturf hlereingang 3 Temperaturf hlereingang 2 Temperaturf hlereingang 1 Relaisausgang 5 Relaisa...

Page 10: ...attention to the flow direction during installation E 1 SM230 with MV20 25 32 installation note Pay attention to the basic setting of the mixing valve and flow direction before installing the MV 20 2...

Page 11: ...menu If necessary a security question will be displayed which asks if you wish to save the completed changes The function of the other 3 keys 4 is explained in the display that is directly above the...

Page 12: ...nfirm Use arrow keys to change and confirm 90 C 6 2 1 Rotation speed R1 From Confirm 7 To move to the next point display CLOSE AND SAVE and confirm 8 Close and save Press YES to confirm Congratulation...

Page 13: ...attention to the flow direction because otherwise correct functioning cannot be ensured Project Material Date Rev Title Rev No Ref Format A3 Weight Approved Draw No Sheet PR 0012 Installation 15 01 2...

Page 14: ...urn flow sensor This will show which temperature sensor is activated for measurement of the return flow temperature Press INFO to open the menu and use the key to select VFS 1T and confirm 4 5 Glycol...

Page 15: ...ays the available storage space on the SD card I 4 Load configuration This function allows you to load all the automatic controller settings on the SD card All previous settings in the automatic contr...

Page 16: ...is in the event of 11 starts and stops No flow Displayed if the steam turbine is 50 C for more than 5 minutes while the pump is on Excessive Insufficient system pressure Displayed if Pmin and or Pmax...

Page 17: ...ld also have the specialist check the functions of the automatic controller and if necessary optimise its settings Carrying out maintenance Checking the date and time Assessment Plausibility check of...

Page 18: ...pressive range of functions and is virtually self explanatory in use The individual entry buttons have specific functions and are explained in the context of each step In the controller menu you will...

Page 19: ...000 2 x Grundfos direct sensors 1 x RC21 Measuring range PT1000 40 C to 300 C Grundfos direct sensor 0 C 100 C 25 C 120 C briefly VFS 1 l min 12 l min VFS1 12 RPS 0 0 6 bar 2 l min 40 l min VFS2 40 0...

Page 20: ...surface is as flat as possible to prevent the housing distorting when the screws are tightened 4 Using a drill and a size 6 mm bit drill three holes in the wall at the points marked and insert the pl...

Page 21: ...should be kept away from the mains cables Temperature sensor leads should only be inserted into the left hand side and mains cables only into the right hand side of the device An omnipolar cut off de...

Page 22: ...with Pt1000 temperature sensors These measure the temperature extremely accurately and thus ensure that the system functions optimally from a control point of view The temperature sensor leads should...

Page 23: ...S3 Sensor 3 S4 Sensor 4 S5 Sensor 5 S6 Sensor 6 S7 Sensor 7 S8 Sensor 8 V1 0 10 V PWM V2 0 10 V PWM VFS1 Grundfos direct sensor VFS2 Grundfos direct sensor RC Room controller SD card slot for data st...

Page 24: ...ture Flue temperature 0 10 V signal pump Circulator pump Three way valve High temperature mixer valve Low temperature mixer valve Bypass damper S1 S2 S3 S4 S5 S6 S7 S8 VFS1 VFS2 V1 V2 R1 ELR R2 ELR R3...

Page 25: ...Forward flow temperature Flue temperature 0 10 V signal pump Circulator pump Three way valve High temperature mixer valve Low temperature mixer valve Bypass damper S1 S2 S3 S4 S5 S6 S7 S8 VFS1 VFS2 V1...

Page 26: ...2 2 3 3 3 4 4 4 5 C GND GND GND GND GND GND GND GND GND GND L N N N N N N N NC NO PE PE PE PE PE PE PE PE R1 R2 R3 R4 R5 R6 S1 S2 S3 S4 S5 S6 S7 S8 V1 V2 1 1 1 1 1 2 2 2 2 2 3 3 3 4 4 4 5 C GND GND G...

Page 27: ...86 EHC20 UK 110515 Project Material Date Rev Title Rev No Ref Format A3 Weight Approved Draw Shee PR 0012 Installation 15 01 2014 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 00...

Page 28: ...PF relay Relay output 6 Relay output 1 RC plugs CAN CAN Temperature sensor input 7 Temperature sensor input 6 Temperature sensor input 5 Temperature sensor input 4 Temperature sensor input 3 Temperat...

Page 29: ...110515 Project Material Date Rev Title Rev No Ref Format A3 Weight Approved Draw No Sheet PR 0012 Installation 14 01 2014 6 1 2 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 000...

Page 30: ...lugs CAN CAN Temperature sensor input 7 Temperature sensor input 6 Temperature sensor input 5 Temperature sensor input 4 Temperature sensor input 3 Temperature sensor input 2 Temperature sensor input...

Page 31: ...10086 EHC20 UK 110515 Project Material Date Rev Title Rev No Ref Format A3 Weight Approved PR 0012 Installation 15 01 2014 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 000 kg CH...

Page 32: ...t 7 Temperature sensor input 6 Temperature sensor input 5 Temperature sensor input 4 Temperature sensor input 3 Temperature sensor input 2 Temperature sensor input 1 Relay output 5 Relay output 4 Rela...

Page 33: ...15 Project Material Date Rev Title Rev No Ref Format A3 Weight Approved Draw No Sheet PR 0012 Installation Error No reference 6 1 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 00...

Page 34: ...ntroller PF relay Relay output 6 Relay output 1 RC plugs CAN CAN Temperature sensor input 7 Temperature sensor input 6 Temperature sensor input 5 Temperature sensor input 4 Temperature sensor input 3...

Page 35: ...10086 EHC20 UK 110515 Project Material Date Rev Title Rev No Ref Format A3 Weight Approved PR 0012 Installation 15 01 2014 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 000 kg CH...

Page 36: ...F relay Relay output 6 Relay output 1 RC plugs CAN CAN Temperature sensor input 7 Temperature sensor input 6 Temperature sensor input 5 Temperature sensor input 4 Temperature sensor input 3 Temperatur...

Page 37: ...110515 Project Material Date Rev Title Rev No Ref Format A3 Weight Approved Draw No Sheet PR 0012 Installation 14 01 2014 6 1 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 000 k...

Page 38: ...CAN Temperature sensor input 7 Temperature sensor input 6 Temperature sensor input 5 Temperature sensor input 4 Temperature sensor input 3 Temperature sensor input 2 Temperature sensor input 1 Relay...

Page 39: ...0086 EHC20 UK 110515 Project Material Date Rev Title Rev No Ref Format A3 Weight Approved PR 0012 Installation 15 01 2014 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 000 kg CHR...

Page 40: ...sensor input 5 Temperature sensor input 4 Temperature sensor input 3 Temperature sensor input 2 Temperature sensor input 1 Relay output 5 Relay output 4 Relay output 3 Relay output 2 Bypass 3 way val...

Page 41: ...Project Material Date Rev Title Rev No Ref Format A3 Weight Approved Draw No Sheet PR 0012 Installation Error No reference 6 1 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 000...

Page 42: ...2 2 2 3 3 3 4 4 4 5 C GND GND GND GND GND GND GND GND GND GND L N N N N N N N NC NO PE PE PE PE PE PE PE PE R1 R2 R3 R4 R5 R6 S1 S2 S3 S4 S5 S6 S7 S8 V1 V2 1 1 1 1 1 2 2 2 2 2 3 3 3 4 4 4 5 C GND GND...

Page 43: ...86 EHC20 UK 110515 Project Material Date Rev Title Rev No Ref Format A3 Weight Approved PR 0012 Installation 15 01 2014 pmn DS EN 22768 m Unless otherwise specified tolerances are after 0 000 kg CHR P...

Page 44: ...setup wizard You should now select Manual in the Operating mode menu page 48 in order to test the switch output with the load connected and check the sensor values for plausibility You can then switch...

Page 45: ...he load connected and check the sensor values for plausibility You can then switch to automatic operation Observe the explanations of the individual parameters on the following pages and check whether...

Page 46: ...1 Measurements 2 Statistics 3 Operating mode 4 Settings 5 Protections 6 Special functions 7 Menu lock 8 Service data 9 Language 1 Measurements The 1 Measurements menu is used to display the temperatur...

Page 47: ...operation Various time ranges day years are available 2 2 Heat quantity Shows the system s heat yield 2 3 Graphic overview The data set out under 2 1 2 2 are presented clearly in the form of a bar cha...

Page 48: ...omponents to overheat The temperatures measured continue to be displayed for overview purposes 4 Settings In the 4 Settings menu you can configure the basic settings for the control functions Under no...

Page 49: ...the filling delay owing to temperature rise In order to set the exact filling priorities for systems with multiple storage tanks the minimum temperature rise at the collector measured over a minute w...

Page 50: ...erved In case of doubt it is better to set the min rotational speed and pump level too high rather than too low 6 2 1 Rotational speed modes The following rotational speed modes are available Off Ther...

Page 51: ...PWM pump If you select this menu you may be prompted to save the rotational speed settings 6 2 3 1 Pump In this menu you can select preset profiles for the pump or configure all settings yourself und...

Page 52: ...for calculating the rotational speed shown If for example 30 is specified here 30 rotational speed will be shown when applying the frequency voltage under PWM On 0 10 V On If the frequency voltage for...

Page 53: ...control in order to minimise temperature fluctuations The time span required for a complete control cycle from minimum to maximum speed is specified here Setting range 1 to 15 minutes default 4 minut...

Page 54: ...as soon as you enable the function The numbering in this list does not correspond to the numbering in the controller menu 6 4 1 Thermostat Using the thermostat function you can provide the system wit...

Page 55: ...e the heating will only switch on when the temperature drops below the T eco setting and will heat to T eco hysteresis if solar charging is enabled Setting range On Off default Off 6 4 1 8 Times Enabl...

Page 56: ...hed off again Setting range 0 99 C default 70 C 6 4 4 2 T return flow Switch on temperature difference If the temperature difference between the storage tank sensor and the return flow sensor is excee...

Page 57: ...l take place at these times Setting range 00 00 to 23 59 default 06 00 to 22 00 This anti Legionella function does not offer complete protection against Legionella because the controller relies on a s...

Page 58: ...in the storage tank to which energy is transferred Setting range S1 S8 VFS1 2 Active storage tank default none 6 4 7 Difference The relay is activated as soon as the set temperature difference betwee...

Page 59: ...ult 70 C 6 4 8 3 T SF The temperature difference between the boiler and storage tank as a switch on and switch off condition Switch on temperature difference T SF Setting range 5 to 20 K default 8 Swi...

Page 60: ...e controller will issue an error message and the relay will switch hysteresis 0 5 bar Setting range Off 0 0 to 10 bar Default Off 6 4 10 4 Pmax Maximum pressure in the system If this pressure is excee...

Page 61: ...ime operation If this temperature at the room sensor is exceeded within the set times the relay will switch off Setting range 10 to 30 C default 20 C 6 4 15 2 Room setpoint night Room setpoint tempera...

Page 62: ...perature Setting range S1 S8 VFS1 2 Active collector Active storage tank default S8 6 5 2 Return flow sensor In this menu you can specify which sensor is used to measure the return flow temperature Se...

Page 63: ...splayed and the LED will flash red Setting range On Off default Off 6 6 1 1 RPS1 RPS2 Pressure sensor model In this menu you can set the type of pressure sensor used Please note If for example VFS1 is...

Page 64: ...10 SD card Settings for the logging function with data storage on the SD card 6 10 1 Logging In this menu you can enable the logging of sensor and relay data and adjust the settings Various file form...

Page 65: ...tings for the controller s Ethernet module 6 14 1 Ethernet Enables or disables the Ethernet function Setting range On Off default Off 6 14 2 MAC address Displays the controller s individual MAC addres...

Page 66: ...ck on To unlock the menus again select Menu lock off Setting range on off default off 8 Service Data The 8 Service Data menu can be used by a specialist or the manufacturer for remote diagnostics etc...

Page 67: ...nutes i e if 11 switching operations are recorded No throughflow This message is shown if the solar pump is running and dT 50 C over a five minute period Excessive insufficient system pressure This me...

Page 68: ...ve your settings optimised if necessary Maintenance procedures Checking the time and date see 6 11 Time and date page 65 Assessing the statistics and carrying out a plausibility check see 2 Statistics...

Page 69: ...rvice data page 66 include not only current measurements and operating statuses but also all controller settings Following a successful setup save the service values on a one off basis 6 10 4 Save con...

Page 70: ...Vorlaufstemperatur Pufferspeicher temperatur Drawing N 3110082 W rmetauchertemp Optional EHC20 System 6 1 3 TFI B 26 09 13 Temperaturf hlereingang 8 VFS2 Sensor VFS1 Sensor Netz Mains 0 10V Ausgang 0...

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Page 72: ...aft se www exodraft se NO exodraft a s Storgaten 88 NO 3060 Svelvik Tel 47 3329 7062 Fax 47 3378 4110 info exodraft no www exodraft no UK exodraft Ltd Unit 4B Lancaster Ct Coronation Road Cressex Busi...

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