eta ePE-K Service Manual

Service manual ...

Tel: +43 (0) 7734 / 22 88 -0 Fax: +43 (0) 7734 / 22 88 -22 [email protected] www.eta.co.at ...

This document provides support for cleaning and maintaining the product. The required steps are listed in detail here. Take note of the date of the cleaning or maintenance and any faults that may have occurred. This facilitates troubleshooting for the expert (system operator, heating technician...). For services (such as commissioning, mainte- nance, fault fixing) provided by ETA customer service, the service reports are provided in digital form. For clarity, you should staple these reports to this document or enclose them. Commissioning data Enter the manufacturing number ...

2 Cleaning and maintenance 2.1 Maintenance notes Performing regular cleaning and maintenance To ensure satisfactory functionality, cleaning and maintenance must be performed at regular intervals. You will receive a timely reminder about this from the ETAtouch control system. Cleaning of the boiler must be carried out at least once a year, or when requested by the control system. Maintenance is necessary at least every 3 years, or when requested by the control system. We recommend that you perform maintenance annually. You can also enter into a service agreement for your heating system. Find out ...

Maintenance notes 5 Follow the on-screen instructions and carry out all steps carefully. Enter your name at the end of maintenance ( button) and save the maintenance with the button. Fig. 2-3: End of maintenance To end maintenance prematurely, press the right arrow key several times until you get to the end. There you can end the maintenance with the button. Cancellation during a maintenance step is not possible. Explanation of the maintenance switch The maintenance switch on the boiler is needed for performing maintenance with the aid of the [Main- tenance] function in the ETAtouch control system. This displays the individu ...

Clean panels If necessary, clean the panels of the boiler and the ETAtouch screen with a moist cloth. Under no circumstances use aggressive solvents, chemicals or scouring agents. They can lead to stress cracks and damage. Wear a protective mask to avoid injuries to the airways. Seal the components. The sealant to use is listed in the respective step. Use adhesive to affix the seals, for example. Only blow out the components with your mouth. Affix a seal. The required cross-section and sealing material are given at each step. Tighten the screws or nuts alternately and evenly. Do not use compres ...

Cleaning and maintenance 2.2 Maintenance openings in the boiler Maintenance openings and components The illustrations show a boiler with the pellet module (pellet hopper with stoker) on the left side. These are equally representative of a boiler with the pellet module on the right side. 1 Pellets vacuum turbine 2 Fill level sensor for pellet hopper 3 Combustion chamber door 4 Firebed switch (safety switch) 5 Firebed level sensor 6 Grate drive 7 Actuator for primary air 8 Ash screw 9 Grate position switch 10 Connection for underpressure measurement 11 Vacuum sensor ...

Maintenance openings in the boiler 9 1 Actuator for secondary air 2 Drive chain of the dosing screw 3 Position sensor for stoker screw 4 Drive chain of the stoker screw 5 Ignition 6 Retaining tube of the lambda probe 7 Heat exchanger cleaner maintenance cover 8 Safety switch for the maintenance cover 9 De-ashing drive 10 Flue gas temperature sensor in heat exchanger 11 Water pressure sensor 12 Draught fan 13 Flue gas temperature sensor on flue gas connector ...

Cleaning and maintenance 1 Actuator of flue gas recirculation 2 Precipitator maintenance cover 3 Heat exchanger cover 4 Release button for safety temperature limiter (STB) 5 Mains switch (symbol ) 6 Maintenance switch (symbol ) 7 Door contact switch ...

Maintenance table 11 2.3 Maintenance table Clean the boiler at least once a year or when requested by the control system. Maintenance is necessary at least every 3 years or when requested by the control system. We recommend you perform maintenance annually. Tasks Regular ly Cleaning annually Maintenan ce at least every 3 years to be performed by Empty the ash box • Empty the ash box • Check the seals X X X Customer Check the pressure of the heating system X X X Customer Check the safety devices • Visual check of the safety valves • Visual check of the thermal relief valve X X Customer or specialist Chimney • Clean the ...

Check the vacuum sensor • Clean the silicon hose and connection for the vacuum sensor • Calibrate the vacuum sensor X Specialist Check the de-ashing system X Specialist Clean the temperature sensor X Specialist Clean the lambda probe X Specialist Check the boiler doors X Specialist Check the pellet hopper • Check the stoker drive chains • Check the clearance/gap of the position sensor for the stoker screw • Clean the fill level sensor • Clean the strainer X Specialist Calibrate the lambda probe X Specialist Reset the maintenance counter X Specialist Perform a heating test X Special ...

Regular maintenance 13 2.4 Regular maintenance 2.4.1 Preparation Stop heating Stop the heating mode of the boiler with the on / off switch in the overview of the boiler. The boiler emits a glowing charge and then switches to operating mode [Switched off]. Then press the [De-ash] key to allow the boiler to perform a final ash removal. 2.4.2 Empty the ash box Emptying the ash box and checking the seals By knocking on the vertical wall of the ash box, you can also check the ash level without opening the box. A full ash box makes a short, dull thump. When empty it makes a hollower sound like a drum. To empty the ash box, fold the ...

Check that the ash box seal on the boiler is intact and replace it if necessary. Fig. 2-9: Seal Attaching the ash box to the boiler Open the flap on the ash box. Push the ash box over the connection on the boiler and connect it to the boiler with the locking lever. 2.4.3 Check pressure of the heating system Checking the heating system's water pressure In buildings with up to three storeys, the optimum water pressure in a cold heating system is between 1 and 2 bar. For a warm heating system, the optimum water pressure is between 1.5 and 2.5 bar. Fig. 2-10: Pressure gauge If the water pressu ...

Cleaning (customer) 15 2.5 Cleaning (customer) 2.5.1 Preparation Stop heating Stop the heating mode of the boiler with the on / off switch in the overview of the boiler. The boiler emits a glowing charge and then switches to operating mode [Switched off]. Then press the [De-ash] key to allow the boiler to perform a final ash removal. WARNING! Switch off the electricity to the boiler via the mains switch  Switch off the electricity to the boiler via the mains switch. This prevents injuries caused by switching the boiler on inadvertently. WARNING! Burns caused by hot parts Risk of burning on parts located behind the boiler h ...

Checking the thermal relief valve Visually check the thermal relief valve. The outlet must not drip. Fig. 2-12: Thermally actuated relief valve If the relief valve drips, press the red button to rinse the valve (danger of scalding). If the relief valve still cannot be closed tightly after being rinsed several times, it must be cleaned by an installer (heating technician) or replaced. Press the red button to manually check the relief valve. This rinses the relief valve. It is however very likely that the seal will be damaged in the process and thus the outlet will drip. Therefore, only carry ...

Cleaning (customer) 17 2.5.4 Cleaning the combustion chamber Cleaning the inside of the combustion chamber Open the combustion chamber door and use the poker to scrape off the ash from the inner surfaces of the combustion chamber. Fig. 2-15: Combustion chamber Cleaning the primary and secondary combustion chamber In the primary combustion chamber remove the two- part combustion chamber cover. Fig. 2-16: Combustion chamber cover Using the poker, stoke all the ash out of the primary combustion chamber into the secondary combustion chamber. Fig. 2-17: Combustion chamber Do not vacuum the ash at the outer edge or under the combusti ...

Cleaning the tilting grate Clean the tilting grate as well as the openings in the tilting grate with the poker. Allow the ash to fall down. Fig. 2-19: Tilting grate Do not hit the tilting grate with the poker. Cleaning the secondary air openings Clean the opening for the secondary air (above the tilting grate) with an ash vacuum, for example. Fig. 2-20: Secondary air openings Cleaning the ignition tubes Clean both ignition tubes by suction and carefully remove any deposits. Fig. 2-21: Ignition tubes Remove the cover on the front Remove the cover from the front of the boiler. Fig. 2-22: Cover ...

Cleaning (customer) 19 Checking the firebed lever and firebed switch Check the movement of the firebed lever in the combustion chamber by repeated lifting. Fig. 2-23: Firebed lever The firebed switch on the front of the boiler must be actuated when lifting. Fig. 2-24: Firebed switch Check fire clay Check the fire clay in the primary and secondary combustion chamber for damage and cracks. Replacing the combustion chamber cover Re-install the two-part combustion chamber cover again and ensure that it is centred. Fig. 2-25: Combustion chamber cover The convex surface of the combustion chamber cover must point to the top of the boi ...

2.5.5 Clean flue gas ducts Remove the cover on the top Remove the cover from the top of the boiler. Fig. 2-27: Cover Checking the air valve for flue gas recirculation Actuate the air valve actuator manually and check that it moves smoothly. Fig. 2-28: Actuator of flue gas recirculation For manual actuation, push the unlocking device (red button) and turn the drive 90° with the locking screw. Fig. 2-29: Manually actuating the actuator If the actuator is difficult to move, remove it. Fig. 2-30: Actuator Clean the PTFE sealing washer on the air valve or replace it if damaged. Fig. 2-31: PTFE s ...