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Exodraft EHC20 Mounting, Installation And Operating Manual

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Summary of Contents for Exodraft EHC20

  • Page 1 EHC20 Mounting, installation and operating manual Read and save these instructions!

  • Page 2: Table Of Contents

    3110086 EHC20 UK 110515 A. SUMMARY of assembly, installation and oper- damper. With one storage tank and a mixer. 30 6.5 Heat quantity ..... . . 62 ating instructions.
  • Page 3 3110086 EHC20 UK 110515 Legend for symbols: The following symbols are used throughout the manual as warnings. They indicate potential hazards or refer to important information relating to the product. Prohibitory symbol: Failure to observe information marked with a prohibitory symbol can result in serious injuries –...

  • Page 4: Summary Of Assembly, Installation And Operating Instructions

    4 • Product information 3110086 EHC20 UK 110515 SUMMARY of assembly, installation and operating instructions Description The automatic controller was produced and tested while taking into account all requirements for high-quality and safety. A two-year warranty from the date of sale applies to the device in accordance with the law.

  • Page 5: Installation

    Installation• 5 3110086 EHC20 UK 110515 Installation Wall mounting 1. Loosen cover screw completely 2. Carefully remove the terminal cover from the bottom part. Loosen the two screws on the top part and remove the top part from the base.

  • Page 6: Electrical Connection

    6 • Installation 3110086 EHC20 UK 110515 Electrical connection Disconnect the power supply before working on the device and make sure that it cannot be reconnected! Check that the power is off! The electrical connection must only be carried out by qualified personnel in compliance with the applicable laws.

  • Page 7: Terminal Plan And Connections

    Installation• 7 3110086 EHC20 UK 110515 The sensor cables to S7/S8 may be extended to a maximum total length of 30 metres with a cable that has a diameter of at least 0.75 mm². The sensors from S1 to S6 may be extended to a maximum total length of 10 metres with a cable that has a diameter of at least 0.75 mm².

  • Page 8: Pin-Out Diagram

    8 • Connection diagrams 3110086 EHC20 UK 110515 Pin-out diagram Program 6.1.7 Heat exchanger with bypass damper, one buffer memory and mixer. This diagram shows the following system: Heat exchanger with bypass damper. A buffer memory, a mixer and a circulating pump.
  • Page 9 Connection diagrams • 9 3110086 EHC20 UK 110515 exodraft EHC10/EHC20 Regler t° STB Thermostat Rauchgastemperatur Vorlauftemperatur Pufferspeicher- temperatur Bypass Mischer Pumpe Project: Title: EHC20 System 6.1.7 Ref.: Rev.: Drawing Date: 26-09-13 30-04-14 Rev. Date:...

  • Page 10: Installation Note For 3-Way Mixing Valve

    3110086 EHC20 UK 110515 Installation note for 3-way mixing valve Please pay attention to the installation note during use of the Exodraft SM230 with MV20 three-way mixing valve. When using a different three-way mixing valve, please pay attention to the flow direction during...

  • Page 11: Service And Start-Up

    Operation • 11 3110086 EHC20 UK 110515 Service and start-up Display and entry The display (1), which has extensive text and graphics modes, makes servicing the automatic controller both simple and almost self-explanatory. Please press the ESC key to return to the main menu.

  • Page 12: Initial Start-Up With The Start-Up Assistant

    12 • Operation 3110086 EHC20 UK 110515 Initial start-up with the start-up assistant The start-up assistant will appear when you switch on the device for the first time and will guide you through the following menu: Choose language –> press OK to confirm Time and date –>...

  • Page 13: Assembly And Connection

    Installation• 13 3110086 EHC20 UK 110515 Option for heat quantity counter SE 20/SE 25/SE 32 The integrated VFS heat quantity counter and flow quantity meter (optional equipment) can be used to measure the amount of recovered heat. Warning! Not calibrated!

  • Page 14: Start-Up And Set-Up

    14 • Operation 3110086 EHC20 UK 110515 Start-up and set-up Select ”6. Special functions” in the main menu to start up the heat quantity counter, and then ”9. Heat quantity”. Confirm each selection by pressing OK. Then follow the steps shown below: ”1.

  • Page 15: Sd Card

    Product information • 15 3110086 EHC20 UK 110515 SD card You can store the current configuration, measurement results, etc. on the included SD card or overwrite a software update on the automatic controller. To do this, press ESC to go to the main menu and select ”6. Special functions” and then select menu item ”14. SD card”...

  • Page 16: Error Messages

    16 • Faults with error messages 3110086 EHC20 UK 110515 Error messages If the automatic controller recognises a malfunction, the warning symbol will appear in the display. When the error is corrected, then the warning symbol changes to an information symbol.

  • Page 17: Maintenance

    Product information • 17 3110086 EHC20 UK 110515 Fuses T2 A/250 V Circuit board Electronic relays Mechanical relays Maintenance In the course of the annual general servicing of your heater, you should also have the specialist check the functions of the automatic controller and, if necessary, optimise its settings.

  • Page 18: Product Information

    18 • Product information 3110086 EHC20 UK 110515 Product information Description The controller was produced and tested in accordance with strict quality and safety requirements. The legal warranty period of two years from the date of sale applies to the device.

  • Page 19: Controller Description

    Controller description • 19 3110086 EHC20 UK 110515 Controller description Technical data Electrical data: Mains voltage 100 - 240 VAC Mains frequency 50 - 60 Hz Power consumption 0.5 - 3 W Switching power Total electronic relay switching power: 460 VA for AC1 / 240 W for AC3 Electronic relay R1 Min.

  • Page 20: Installation

    20 • Installation 3110086 EHC20 UK 110515 Installation Wall mounting 1. Completely loosen the cover screw 2. Carefully remove the terminal box cover from the bottom section. Loosen the two screws in the top section and remove the top section from the base.

  • Page 21: Housing Top

    Installation• 21 3110086 EHC20 UK 110515 M.1.2 Housing top Terminal box cover Cover screw Electrical connection Before working on the device, disconnect the power supply and ensure that the device cannot be switched on again! Check that the power is switched off.

  • Page 22: Installing The Temperature Sensors

    22 • Installation 3110086 EHC20 UK 110515 M.2.1 1. Select the required program/hydraulic system (see "N.3 Hydraulic variants / overview / systems", page 2. Open the terminal box cover ("N.1 Terminal box", page 3. Strip no more than 55 mm of the cable sheath, insert cables, attach the strain relief clamps, strip 8-9 mm of the insulation off the ends of the wires (Fig.

  • Page 23: Terminal Plan And Connections

    Connection diagrams • 23 3110086 EHC20 UK 110515 Terminal plan and connections Terminal box The mains section on the right-hand side of the terminal box is protected by an additional plastic panel. Before removing this, ensure that the controller has been disconnected from the power supply.

  • Page 24: Hydraulic Variants / Overview / Systems

    24 • Connection diagrams 3110086 EHC20 UK 110515 Hydraulic variants / overview / systems Temperature sensors Relay connections Extra low voltage only 230 VAC S8 VFS1 VFS2 V1 (pot.- (ELR) (ELR) free) Program 6.1.1 Program 6.1.2 Program 6.1.3 Program 6.1.4 Program 6.1.5...
  • Page 25 Connection diagrams • 25 3110086 EHC20 UK 110515 Temperature sensors Relay connections Extra low voltage only 230 VAC S8 VFS1 VFS2 V1 (pot.- (ELR) (ELR) free) Program 6.1.8 Program 6.1.1 with VFS-Sensor (VFS-Sensor can be used with all systems )

  • Page 26: Connection Diagrams

    26 • Connection diagrams 3110086 EHC20 UK 110515 Connection diagrams Program 6.1.1. Heat exchanger without bypass damper. With one storage tank. exodraft EHC10/EHC20 controller Pump Smoke gas temperature Forward flow Storage tank temperature temperature This diagram shows the following system: Heat exchanger without bypass damper.
  • Page 27 Connection diagrams • 27 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Draw Material: Format: A3 Date: 15-01-2014 Rev. No.: Ref.: Weight: 0,000 kg Rev.: Approved: Shee Unless otherwise specified tolerances are after DS/EN 22768 m...

  • Page 28: Program 6.1.2. Heat Exchanger Without Bypass Damper. With Two Storage Tanks

    28 • Connection diagrams 3110086 EHC20 UK 110515 Program 6.1.2. Heat exchanger without bypass damper. With two storage tanks. exodraft EHC10/EHC20 controller Smoke gas temperature Pump 3-way valve This diagram shows the following system: Heat exchanger without bypass damper. Two storage tanks, a 3-way valve and a 0-10 V regulated circulator pump.
  • Page 29 Connection diagrams • 29 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Draw. No.: 6.1.2 Material: Format: A3 Date: 14-01-2014 0,000 kg Rev. No.: Ref.: Weight: Rev.: Sheet: 1 of 2 Approved: Unless otherwise specified tolerances are after DS/EN 22768 m...

  • Page 30: Program 6.1.3 Heat Exchanger Without Bypass

    30 • Connection diagrams 3110086 EHC20 UK 110515 Program 6.1.3 Heat exchanger without bypass damper. With one storage tank and a mixer. exodraft EHC10/EHC20 controller Mixer Pump Smoke gas temperature Forward flow Storage tank temperature temperature This diagram shows the following system: Heat exchanger without bypass damper.
  • Page 31 Connection diagrams • 31 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Material: Format: A3 Date: 15-01-2014 Rev. No.: Ref.: Weight: 0,000 kg Rev.: Approved: Unless otherwise specified tolerances are after DS/EN 22768 m...

  • Page 32: Program 6.1.4. Heat Exchanger Without Bypass Damper. With Two Storage Tanks And A Mixer

    32 • Connection diagrams 3110086 EHC20 UK 110515 Program 6.1.4. Heat exchanger without bypass damper. With two storage tanks and a mixer. exodraft EHC10/EHC20 controller Mixer 3-way valve Pump Smoke gas temperature This diagram shows the following system: Heat exchanger without bypass damper. One storage tank, a mixer and a circulator pump.
  • Page 33 Connection diagrams • 33 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Draw. No.: Material: Format: A3 Date: Error: No reference 0,000 kg Rev. No.: Ref.: Weight: Rev.: Approved: Sheet: 1 of 2 Unless otherwise specified tolerances are after...

  • Page 34: Program 6.1.5. Heat Exchanger With Bypass Damper. With One Storage Tank

    34 • Connection diagrams 3110086 EHC20 UK 110515 Program 6.1.5. Heat exchanger with bypass damper. With one storage tank. exodraft EHC10/EHC20 controller Bypass Pump Smoke gas temperature Forward flow Storage tank temperature temperature This diagram shows the following system: Heat exchanger with bypass damper. One storage tank and a 0-10 V regulated circulator pump.
  • Page 35 Connection diagrams • 35 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Material: Format: A3 Date: 15-01-2014 Rev. No.: Ref.: Weight: 0,000 kg Rev.: Approved: Unless otherwise specified tolerances are after DS/EN 22768 m...

  • Page 36: Program 6.1.6. Heat Exchanger With Bypass Damper. With Two Storage Tanks

    36 • Connection diagrams 3110086 EHC20 UK 110515 Program 6.1.6. Heat exchanger with bypass damper. With two storage tanks. exodraft EHC10/EHC20 controller Smoke gas temperature Bypass 3-way valve Pump This diagram shows the following system: Heat exchanger with bypass damper. Two storage tanks, a 3-way valve and a circulator pump.
  • Page 37 Connection diagrams • 37 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Draw. No.: Material: Format: A3 Date: 14-01-2014 Rev. No.: Ref.: Weight: 0,000 kg Rev.: Sheet: 1 of Approved: Unless otherwise specified tolerances are after DS/EN 22768 m...

  • Page 38: Program 6.1.7. Heat Exchanger With Bypass Damper. With One Storage Tank And A Mixer

    38 • Connection diagrams 3110086 EHC20 UK 110515 Program 6.1.7. Heat exchanger with bypass damper. With one storage tank and a mixer. exodraft EHC10/EHC20 controller Smoke gas temperature Forward flow Storage tank temperature temperature Bypass Mixer Pump This diagram shows the following system: Heat exchanger with bypass damper.
  • Page 39 Connection diagrams • 39 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Material: Format: A3 Date: 15-01-2014 Rev. No.: Ref.: Weight: 0,000 kg Rev.: Approved: Unless otherwise specified tolerances are after DS/EN 22768 m...

  • Page 40: Program 6.1.8. Heat Exchanger With Bypass Damper. With Two Storage Tanks And A Mixer

    40 • Connection diagrams 3110086 EHC20 UK 110515 Program 6.1.8. Heat exchanger with bypass damper. With two storage tanks and a mixer. exodraft EHC10/EHC20 controller Smoke gas temperature Bypass Mixer 3-way valve Pump This diagram shows the following system: Heat exchanger with bypass damper. Two storage tanks, a mixer, a 3-way valve and a circulator pump.
  • Page 41 Connection diagrams • 41 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Draw. No.: Material: Format: A3 Date: Error: No reference Rev. No.: Ref.: Weight: 0,000 kg Rev.: Approved: Sheet: 1 of 2 Unless otherwise specified tolerances are after...

  • Page 42: Program 6.1.1. Heat Exchanger With Vfs Sensor For Power Measurement

    42 • Connection diagrams 3110086 EHC20 UK 110515 Program 6.1.1. Heat exchanger with VFS sensor for power measurement. exodraft EHC10/EHC20 controller VFS-Sensor Pump Smoke gas temperature Forward flow Storage tank temperature temperature Project: Title: EHC20 System 6.1.1 This diagram shows the following system: Ref.:...
  • Page 43 Connection diagrams • 43 3110086 EHC20 UK 110515 PR-0012 Project: Title: Installation CHR-P Material: Format: A3 Date: 15-01-2014 Rev. No.: Ref.: Weight: 0,000 kg Rev.: Approved: Unless otherwise specified tolerances are after DS/EN 22768 m...

  • Page 44: Operation

    44 • Menu sequence and structure 3110086 EHC20 UK 110515 Operation Display and entry system The display (1) with an extensive text and graphics mode makes the controller virtually self-explanatory in use. To access the settings from the overview, press the "esc" button.

  • Page 45: Unassisted Setup

    SD card after the setup. To save the configuration, you will need to use the “Save config. ” function. This can be found in Menu 6.14 (Special functions/SD card).

  • Page 46: Measurements

    46 • Menu sequence and structure 3110086 EHC20 UK 110515 In graphics or overview mode, the esc button takes you straight to the main menu. The following items are then available to choose from: Current temperature values with explanations 1. Measurements System function check with operating hours etc.

  • Page 47: Statistics

    Menu sequence and structure • 47 3110086 EHC20 UK 110515 2. Statistics The ”2. Statistics” menu is used for function control and long-term monitoring of the system. The menu can be exited by pressing ”esc” or selecting ”Exit statistics”. In order to evaluate system data, the controller clock must be set correctly. Improper operation or an incorrect time may result in data being deleted, recorded incorrectly or overwritten.

  • Page 48: Automatic

    48 • Menu sequence and structure 3110086 EHC20 UK 110515 3.1 Automatic Automatic mode is the normal mode of operation for the controller. Only in automatic mode can the controller function correctly, taking into account the current temperatures and the parameters set. If the power supply is interrupted, the controller will automatically return to the last selected operating mode.

  • Page 49: Priority S(X)

    Menu sequence and structure • 49 3110086 EHC20 UK 110515 4.3 Priority S(X) Priority of the storage tank X This setting specifies the filling order. If an equal priority is set, the storage tanks will be filled on an equal basis.

  • Page 50: Special Functions

    50 • Menu sequence and structure 3110086 EHC20 UK 110515 6. Special functions In the ”6. Special functions” menu, basic settings and advanced functions can be configured. With the exception of the time, the settings should only be configured by specialists.

  • Page 51: Pump Type

    Menu sequence and structure • 51 3110086 EHC20 UK 110515 Mode 3: The controller switches to the set min. rotational speed after the purging period. If the temperature at the reference sensor (collector; in systems with heat exchanger for relay 2 the heat exchanger) is above the setpoint value to be set subsequently, the rotational speed will be increased.
  • Page 52 52 • Menu sequence and structure 3110086 EHC20 UK 110515 6.2.3.7 0-10V on The pump needs this voltage in order to switch on. Setting range: (Solar:) 0.0 to 5.0 V / default: 1.0 V - (Heating:) 5.0 to 10.0 V / default: 9.0 V 6.2.3.8 0-10V max...

  • Page 53: Purging Time

    Menu sequence and structure • 53 3110086 EHC20 UK 110515 6.2.3b Technical data – PWM and 0-10 V PWM technical data: PWM: 20% to 100%, 1 kHz Designed for a 10 k ohm load resistance 0-10 V technical data: 10 V = 100% rotational speed...

  • Page 54: Setpoint Value

    54 • Menu sequence and structure 3110086 EHC20 UK 110515 6.2.8 Setpoint value This value is the control setpoint value for Mode 3 (see ”6.2.1 Rotational speed modes”, page 50). If this value at the sensor drops below, the rotational speed will be reduced. If it is exceeded, the rotational speed will be increased.

  • Page 55: Thermostat 2

    Menu sequence and structure • 55 3110086 EHC20 UK 110515 6.4.1.4 Thermostat sensor 2 Optional switch-off sensor If ”TH setpoint” + hysteresis at thermostat sensor 2 is exceeded, the relay will be switched off. Setting range: S1-S8, VFS1-2, Active storage tank / default: none 6.4.1.5 T eco...

  • Page 56: Return Flow Temperature Rise

    56 • Menu sequence and structure 3110086 EHC20 UK 110515 6.4.3.3 Cooling sensor The reference sensor for the cooling function. Setting range: S1-S8, VFS1-2, Active storage tank, RC / default: none 6.4.3.4 Times Enable time for the cooling function You can set the desired time periods during which the cooling function is enabled from a time point of view here. You can enter three times for each day of the week.

  • Page 57: Transfer

    Menu sequence and structure • 57 3110086 EHC20 UK 110515 6.4.5.2 AL action time The AL Tsetpoint temperature at the AL sensors must prevail for this period of time in order to allow successful heating. Setting range: 1-120 min / default: 15 min 6.4.5.3 Last AL heating...

  • Page 58: Difference

    58 • Menu sequence and structure 3110086 EHC20 UK 110515 6.4.6.1 ∆ T transfer Temperature difference for energy transfer. If the temperature difference between the sensors reaches ∆ T transfer on, the relay will be switched on. As soon as the difference drops to ∆...

  • Page 59: Solid Fuel Boiler

    Menu sequence and structure • 59 3110086 EHC20 UK 110515 6.4.7.5 Diff Tmax Maximum temperature at the destination sensor to activate the differential relay If the temperature at the destination sensor is above this value, the difference function will not be switched on.

  • Page 60: Pressure Control

    60 • Menu sequence and structure 3110086 EHC20 UK 110515 6.4.10 Pressure control The relay switches on if the pressure drops below a minimum or exceeds a maximum. Setting range: On, Off / default: Off 6.4.10.1 Pressure control In this menu, you can enable system pressure control via a direct sensor. As soon as the set pressure conditions are exceeded, the set relay will switch on.

  • Page 61: Parallel Operation R2

    Menu sequence and structure • 61 3110086 EHC20 UK 110515 6.4.12.2 Follow-up time In this menu, you can specify how long the relay operating in parallel continues to run after R1 or R2 switches off. Setting range: 0 - 120 seconds / default: 30 seconds 6.4.13 Parallel operation R2...

  • Page 62: Heat Quantity

    62 • Menu sequence and structure 3110086 EHC20 UK 110515 6.5 Heat quantity 1. Constant throughflow If ”constant throughflow” is enabled for heat quantity metering purposes, the approximate heat yield will be calculated using the values for antifreeze, antifreeze concentration and system throughflow (values to be entered manually) as well as the collector and storage tank sensor values measured.

  • Page 63: Vfs Position

    Menu sequence and structure • 63 3110086 EHC20 UK 110515 6.5.8 VFS position In this menu, you can specify whether the direct sensor is mounted in the forward flow or the return flow. Setting range: Forward flow, return flow / default: Return flow To avoid damaging the vortex flow sensor, it is recommended that you position it only in the return flow.

  • Page 64: Setup

    64 • Menu sequence and structure 3110086 EHC20 UK 110515 6.8 Setup Once launched, the setup wizard guides you through the basic settings for the setup in the correct order and provides brief descriptions of the various parameters in the display.

  • Page 65: Time And Date

    Menu sequence and structure • 65 3110086 EHC20 UK 110515 6.11 Time and date In this menu, you can set the current time and date. In order to evaluate system data, the controller clock must be set correctly. Please note that the clock does not continue running in the event of a power failure and will therefore need to be set again.

  • Page 66: Menu Lock

    66 • Menu sequence and structure 3110086 EHC20 UK 110515 7. Menu lock In the ”7. Menu lock” menu, you can prevent the controller settings being accidentally changed. You can exit the menu by pressing ”esc”. The following menus remain fully accessible even if the menu lock is enabled and changes can be made if necessary:...

  • Page 67: Faults With Error Messages

    3110086 EHC20 UK 110515 Faults with error messages • 67 Faults with error messages If the controller identifies a malfunction, the warning symbol will appear in the display. If the error is no longer present, the warning symbol will change to an information symbol.

  • Page 68: Maintenance

    68 • Faults with error messages 3110086 EHC20 UK 110515 Fuses T2 A / 250 V Circuit board Electronic relays Mechanical relays Maintenance As part of the general annual maintenance for your heating system, you should have the controller functions checked by a specialist and have your settings optimised if necessary.

  • Page 69: Useful Information / Tips And Tricks

    Useful information / tips and tricks • 69 3110086 EHC20 UK 110515 Useful information / tips and tricks Temperature resistance table for Pt1000 sensors °C Ω 1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385 Instead of setting the system throughflow with a volume flow limiter, it is better to adjust the throughflow using the selector switch on the pump and the controller’s ”Max.
  • Page 70 • Useful information / tips and tricks 3110086 EHC20 UK 110515 Solution by high temperature in the heat-exchanger and when the temperature S8 ist smaller than the set-point. The temperature in the heat-exchanger can become to high when the heat source stops and the temperature S8 drops below the set-point.
  • Page 71 EU-Vaatimustenmukaisuusvakuutus FR: Déclaration de conformité de l’Union Européenne IS: ESS-Samræmisstaðfesting NO: EU-Samsvarserklæring Dichiarazione di Conformità Unione Europea exodraft a/s C.F. Tietgens Boulevard 41 DK-5220 Odense SØ -erklærer på eget ansvar, at følgende produkter: -veklaart dat onderstaande producten: -hereby declares that the following products: -deklarerar på...
  • Page 72 DE: exodraft GmbH DK: exodraft a/s NO: exodraft a/s Soonwaldstraße 6 C. F. Tietgens Boulevard 41 Storgaten 88 DE-55569 Monzingen DK-5220 Odense SØ NO-3060 Svelvik Tel.: +49 (0)6751 855 599-0 Tel: +45 7010 2234 Tel: +47 3329 7062 Fax: +49 (0)6751 855 599-9...

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