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Varmebaronen EP 26 E Use And Installation

Seven-stage electric boilers
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MANUAL
Use and Installation
Seven-stage electric boilers
EP 26 E and EP 42 E

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Summary of Contents for Varmebaronen EP 26 E

  • Page 1 MANUAL Use and Installation Seven-stage electric boilers EP 26 E and EP 42 E...

  • Page 2: Table Of Contents

    Contents 1. About the manual ..................2 1.1. About the User Manual ....................2 1.2. About the Installation Manual ..................2 1.3. Explanation of symbols ....................2 1.4. Disclaimer ........................2 2. User manual ..................... 3 2.1. Safety ..........................3 2.2.

  • Page 3: About The Manual

    1. About the manual This manual consists of two parts, a User Manual and an Installation Manual. 1.1. About the User Manual The User Manual is aimed at those who have purchased a boiler made by Värmebaronen. Here you will find descriptions of boiler functions, user instructions and maintenance advice.

  • Page 4: User Manual

    2. User manual 2.1. Safety • Please read through the User Manual carefully before using the boiler! • Installation, service and other measures may only be carried out by a qualified installation engineer. • Intervention that requires tools must be performed by a qualified installation engineer. •...

  • Page 5: Installation Information

    EP 26 E EP 42 E Settings Number of power stages (Delivery setting: 7) Circulation pump (Delivery setting: 0) Main fuse (Delivery setting: EP 26 E: 50, EP 42 E: 80) Power when switched on (Delivery setting: 2) Other notes:...

  • Page 6: Overview

    2.3. Overview Control panel 6. Display 2. Power switch 7. Button functions 3. Overheating protection (two or three 8. Buttons 9. Optional outdoor sensor depending on boiler model) 10. Optional room unit 4. Design plate 11. Optional remote control 5. Indicator lights 12.

  • Page 7: Functions And Settings

    Buttons Buttons for navigating the boiler’s menus. Button function The buttons have different functions in different menus. The button function box on the display shows the button’s function in the menu you have selected. Control panel In the control panel, you can see the status of the boiler and change the boiler settings. Read more about boiler’s settings on pages 6-9.

  • Page 8: Navigating The Menu

    Home screen Alarm and warning screen 24. Boiler temperature 27. Desired boiler temperature or 30. Lower boiler temperature Heating curve level (optional) 25. Room temperature (optional) 31. Active limitation 28. Open the menu 26. Outdoor temperature (optional) 32. Active alarms or warnings 29.

  • Page 9: Temperature-Regulating Functions

    Basic settings The installation engineer sets the language, time and date at the time of installation. In the event of a power failure lasting longer than 3–4 days, you or the installation engineer may need to set the basic settings again. ECO function The ECO function is used when the boiler is not in use.

  • Page 10: Alarms, Warnings And Limitations

    Overheating protection The overheating protection is a mechanical safety feature that is triggered if the boiler temperature exceeds 100°C. If one or more overheating protection devices are triggered, you can reset them manually. If one or more overheating protection devices are triggered repeatedly, contact your installation engineer for troubleshooting and remedial actions.

  • Page 11: Optional Features

    Limitations When the boiler reaches a set value, the boiler activates a limitation and temporarily stops heating. Limitations do not require any action to be taken. Green indicator light flashes. The display shows a warning bell with a light background. Press the button below the alarm bell to see which limitation the boiler has activated.

  • Page 12: Troubleshooting

    Adjust the heating curve slope (optional) 1. Press the menu button. 2. The heating curve is selected. 3. Press the Confirm button. 4. Use the right arrows to select the Heating curve slope icon. Heating curve slope – can be adjusted between 21 and 60. 5.

  • Page 13: Acknowledging An Alarm, Warning Or Limitation

    What has happened? What does it mean? What should I do? The boiler does not start. The boiler has stopped Check the indicator lights and see above. because it has triggered Refer to page 5 for the location of the indicator lights on an alarm or warning.

  • Page 14: Installation Manual

    3. Installation Manual 3.1. Safety • The boiler must not be used for direct heating of drinking water. • The boiler may only be installed indoors. • The ambient temperature must not exceed 30°C. • In cases where the instructions in this manual violate national regulations, the latter must be followed.

  • Page 15: Install The Boiler

    Option Outdoor sensor Room unit Brackets Water quality If the water’s values deviate from the recommended values, you must adjust the values or use an alternative water source. If the water deviates from the recommended levels, it can cause corrosion or lime deposits, which will shorten the service life of the boiler by several years.

  • Page 16: Install The Pipe System

    Install the outdoor sensor (optional) Connect the outdoor sensor to the boiler using a cable with a cross section of at least 0.5 mm and a maximum length of 30 metres. Position the outdoor sensor: Halfway up an outside wall. In a corner facing north or northwest.
  • Page 17 System principles Key to symbols Flow direction Circulation pump Stop valve Low pressure guard Safety valve Automatic venting Open expansion tank Closed expansion tank System principle - open expansion tank • The boiler’s safety pipe must be connected in a non-isolatable, uninterruptible rise to the expansion tank.
  • Page 18 System principle - closed expansion tank • Install the safety pipe directly on the flow line after the boiler connection. • Always install automatic venting in systems with a closed expansion tank, as the immersion heaters may otherwise sustain damage. •...

  • Page 19: Install The Electricity

    Electrical installation or alteration to electrical installation may only be carried out by qualified personnel. Always shut off the power before carrying out work on the boiler. Overview EP 26 E Control fuse 6. Contactor, power group 3 11. Immersion heater 3.75 kW 2. EMI filter 7.
  • Page 20 Wiring diagram - EP 26 E Always shut off the power before carrying out work on the boiler. 1. Power cable connection. 8. Blocking, voltage/current control, limitation/Power 2. 230 V~, to external unit. control, 0-10 V of connected power 3. Circulation pump connection, 230 V~.
  • Page 21 25. Immersion heater, power group two, 7.5 kW (EP 26 E only). 19. Contactor, power group three. 26. Immersion heaters, power group three, 2 x 7.5 kW (EP 26 E only). 20. Immersion heater, power group one, 6 kW (EP 42 E only).
  • Page 22 Power supply Read more about power supply in the technical specification on page 33. EP 26 E Connect to terminal block number 1 on the wiring diagram for EP 26 E on page 19. EP 42 E Connection for PEN 4-core or 5-core cable. Connect the phase conductors to contactor K2 and the earth conductor to the zero terminal block.
  • Page 23 Current transformer – load guard Install the current transformers only when the load guard is in use. The load guard is not phase-sensitive. Install the current transformers on the cables from the fuses, which must be protected. Connect with a high-voltage insulated cable with a minimum cross-section of 0.75 mm².
  • Page 24 Power control 0-10 mA/0-20 mA By connecting a resistor with a value as shown in the image to the left, the number of power stages can be controlled with a current signal. Otherwise the same as external limitation and direct control 0-10 V. Power signal 0-10 V of connected power The connected power of the boiler can be read as a 0-10 VDC signal, which corresponds to 0-100% of the installed power.

  • Page 25: Menus And Settings

    3.2.6. Menus and settings Navigating the menu Main menu Move the cursor Confirm selection Back Change values Installation wizard Menu overview...
  • Page 26 Menu functions On the display Explanation Current temperatures Displays current temperatures for Boiler temperature, Setpoint, Outdoor temperature, Room temperature, Room (Main menu) setpoint and Internal temperature. Alt. temp With the Alt. temp function connected, the user can shift the heating curve level in parallel with an external unit, such as GSM (Installation engineer settings) or a remote-controlled ON/OFF switch (optional).
  • Page 27 External limitation (delivery setting) limits the boiler output Ext. control with a 0-10 V control signal. (Installation engineer settings/ Advanced) The boiler works towards the specified setpoint with the power allowed via the control signal. 1.4 V 1 step, 2.8 V 2 steps, etc. When selecting Direct control, no consideration is given to the specified setpoint, rather the boiler output is connected in accordance with the control signal (0-10 V).
  • Page 28 Max. output start-up Delay or not of the boiler output after start-up. 1=no delay 2=max. 1/3 allowed immediately, 2/3 after 20 minutes and full (Installation engineer settings/ power after 40 minutes. Advanced) Max. flow The maximum permitted flow temperature. Factory setting 40°C. Adjusted according to the design of the system (optional).

  • Page 29: After Installation

    Temp guard type Choice of method for the over-temperature protection function. Select (ABS) for absolute value, the value that is set under Temp (Installation engineer settings/ guard level. Select REL for the relative value when Temp guard Advanced) level is added to the setpoint. Factory setting is relative value (REL).

  • Page 30: Installation Engineer's Checklist

    3.3.2. Installation engineer’s checklist Before starting up the boiler Has the electrical installation been adapted to the local power supply? Are the boiler and heating system filled with water and vented. Is the pressure correct? Are all pipe connections are leakproof? Are the valves set to the correct position? Is the vent valve is open so that the air can escape? After starting up the boiler...

  • Page 31: Troubleshooting

    Troubleshooting Work on the system which requires tools, must only be carried out by authorised installation engineers. Ensure the boiler is disconnected from the power before starting work! What has happened Possible cause No or insufficient Control valves in the system are restricting the flow. heat.
  • Page 32 Manual operation – test mode In order to test the boiler’s functions when troubleshooting, you can control the power stage, the circulation pump and the buzzer alarm relay manually. Read more about activating Manual operation on page 28. Troubleshooting boiler temperature sensor The boiler temperature sensor must not be connected to the circuit board during resistance measurement.
  • Page 33 W02: High boiler Warning: The over-temperature protection has temporarily stopped the temp boiler from heating. At overtemperature, the connected power steps out and steps in again only when the temperature has dropped below the limit. W03: Low boiler Warning: The boiler temperature is (or has been) +7°C or lower. temp The boiler should always maintain at least 7°C during operation, regardless of the specified setpoint.

  • Page 34: Technical Specification

    3.4. Technical specification EP 26 E EP 42 E Article number 1410 1412 Output 26,25 kW 42 kW Curent 37,9 A 61 A Number of stages Highest fuse 50 A 80 A Voltage 400 V3N~ 400 V3N~ Voltage tolerance ≤ ± 10 % ≤...
  • Page 35 Dimensional sketch Cover plate 2. Cable openings 3. Flow and safety pipe, R32 ext. 4. Drain valve, R15 5. Return line, R32 ext. 6. Adjustable foot bolts Limitation levels EP 26 E EP 42 E Stage Power Current Stage Power Current 3.75...
  • Page 36 Panel PCB 218020 EMI filter 210233 Overlay 210232 Panel PCB 210233 Overlay Option EP 26 E and EP 42 E Art. no. Designation Quantity 1915 Brackets 1921 Outdoor sensor 2964 Room unit 1950 Remote control Värmebaronen AB Arkelstorpsvägen 88 SE-291 94 Kristianstad Tel.

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Ep 42 e

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