Related Manuals for eta ePE-K
Summary of Contents for eta ePE-K
- Page 1 2019-07-10 0000000453 V.002 3.47.0 5300, 00 939076-001 Pellet boiler ePE-K 140-170 kW Service manual...
- Page 2 ETA Heiztechnik Gewerbepark 1 A-4716 Hofkirchen an der Trattnach Tel: +43 (0) 7734 / 22 88 -0 Fax: +43 (0) 7734 / 22 88 -22 info@eta.co.at www.eta.co.at...
- Page 3 Commissioned by (company): _________________________________________ _________________________________________ _________________________________________ Copyright All contents of this document are property of ETA Heiztechnik GmbH and are protected by copyright. Any reproduction, transfer to third parties or use for other purposes is prohibited without written permission from the owner.
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Page 4: Maintenan Ce
So you can maintain a long-term overview of maintenance carried out. course, the maintenance can also be carried out using the service Fig. 2-2: Maintenance step (example) guide, without the support of the ETAtouch control system. www.eta.co.at... - Page 5 Cleaning and maintenance Maintenance notes Follow the on-screen instructions and carry out all The maintenance switch is marked with the steps carefully. Enter your name at the end of symbol and has two settings. maintenance ( button) and save the maintenance •...
- Page 6 No leaks in the components, e.g. screw connection or maintenance cover. Clean panels If necessary, clean the panels of the boiler and the ETAtouch screen with a moist cloth. Under circumstances aggressive solvents, chemicals or scouring agents. They can lead to stress cracks and damage. www.eta.co.at...
- Page 7 Cleaning and maintenance Maintenance notes...
- Page 8 Pellets vacuum turbine Fill level sensor for pellet hopper Combustion chamber door Firebed switch (safety switch) Firebed level sensor Grate drive Actuator for primary air Ash screw Grate position switch 10 Connection for underpressure measurement 11 Vacuum sensor www.eta.co.at...
- Page 9 Cleaning and maintenance Maintenance openings in the boiler Actuator for secondary air Drive chain of the dosing screw Position sensor for stoker screw Drive chain of the stoker screw Ignition Retaining tube of the lambda probe Heat exchanger cleaner maintenance cover Safety switch for the maintenance cover De-ashing drive 10 Flue gas temperature sensor in heat exchanger...
- Page 10 Maintenance openings in the boiler Cleaning and maintenance Actuator of flue gas recirculation Precipitator maintenance cover Heat exchanger cover Release button for safety temperature limiter (STB) Mains switch (symbol Maintenance switch (symbol Door contact switch www.eta.co.at...
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Page 11: Table Of Contents
Cleaning and maintenance Maintenance table 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. -
Page 12: Tasks
Check the stoker drive chains • Check the clearance/gap of the position sensor for the Specialist stoker screw • Clean the fill level sensor • Clean the strainer Calibrate the lambda probe Specialist Reset the maintenance counter Specialist Perform a heating test Specialist www.eta.co.at... -
Page 13: Empty The Ash Box X Xx
Cleaning and maintenance Regular maintenance Regular maintenance Open the lock for the lid and empty the ash box. 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]. -
Page 14: Check The Pressure Of The Heating System
(e.g. treated water). 2.4.4 Establish operational readiness Switching on the boiler Switch the boiler back on using the on / off switch . www.eta.co.at... -
Page 15: Check The Safety Devices
Cleaning and maintenance Cleaning (customer) Cleaning (customer) 2.5.2 Check safety devices 2.5.1 Preparation Check safety valves Check all safety valves of the heating system by means of a visual inspection. The outlets of the safety Stop heating valves must not drip. Stop the heating mode of the boiler with the on / off switch in the overview of the boiler. -
Page 16: Clean The Flue Tube
Therefore, only carry out the check on weekdays, never on weekends in the cold winter, because there is probably no heating technician available if the seal is defective. Fig. 2-14: Condensate drain www.eta.co.at... -
Page 17: Clean The Combustion Chamber
Cleaning and maintenance Cleaning (customer) 2.5.4 Cleaning the combustion chamber Using the poker, stoke all the ash out of the primary combustion chamber into the secondary 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. -
Page 18: Clean The Tilting Grate
Remove the cover from the front of the boiler. Cleaning the secondary air openings Clean the opening for the secondary air (above the tilting grate) with an ash vacuum, for example. Fig. 2-22: Cover Fig. 2-20: Secondary air openings www.eta.co.at... -
Page 19: Check The Firebed Lever And Firebed Switch
Cleaning and maintenance Cleaning (customer) Checking the firebed lever and firebed switch Replacing the combustion chamber cover Check the movement of the firebed lever in the Re-install the two-part combustion chamber cover combustion chamber by repeated lifting. again and ensure that it is centred. Fig. -
Page 20: Clean Flue Gas Ducts
Clean the sealing area for the air valve on the inside of the flue duct. 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. 2-32: Sealing area Fig. 2-29: Manually actuating the actuator www.eta.co.at... -
Page 21: Clean The Inner Walls Of The Flue Gas Duct
Cleaning and maintenance Cleaning (customer) Removing the maintenance cover CAUTION! Remove the insulation above the maintenance cover. Do not lubricate the washer and sealing area Never lubricate the sealing area in the flue duct or the washer on the air valve with oil, grease or other lubricants. -
Page 22: Clean The Flue Gas Recirculation Ducts
Re-install the cover on the front of the ash duct. Fig. 2-42: Cover Fig. 2-39: Maintenance cover Remove the ash from the flue gas duct with the clean- ing brush and an ash vacuum. Fig. 2-40: Flue gas duct www.eta.co.at... - Page 23 Cleaning and maintenance Cleaning (customer) Place the insulation back onto the maintenance cover. Checking the seal on the maintenance cover Check if the seal on the maintenance cover is intact and replace if necessary. Fig. 2-45: Insulation Fig. 2-43: Seal CAUTION! Do not operate with damaged seals Never operate the boiler with damaged seals.
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Page 24: Clean The Precipitator (Optional)
Clean the ash in the upper section of the precipitator Fig. 2-46: Insulation (above the sliding rake) with the poker. Allow the ash Remove the maintenance cover. to fall down. Fig. 2-47: Maintenance cover Fig. 2-49: Upper section of the precipitator www.eta.co.at... -
Page 25: Check The Alignment Of The Electrodes
The best way to do this is to stroke your hand over the electrode holder and, above all, check the area near the flushing air opening. If cracks or small holes can be "felt", there is damage. In this case, contact ETA Customer Support. - Page 26 Never operate the boiler with damaged seals. Otherwise, unwanted air is sucked in, disturbing the combustion process and causing increased wear. Always replace damaged seals immediately. Installing the maintenance cover Re-attach the maintenance cover. Tighten the screws alternately and evenly. Fig. 2-54: Maintenance cover www.eta.co.at...
- Page 27 Cleaning and maintenance Cleaning (customer) 2.5.7 Establish operational readiness Mounting the cover on the top Re-install the cover back on top of the boiler. Fig. 2-56: Cover Switch the boiler on via the mains switch and start ash removal Switch the boiler back on at the mains switch. Press the [De-ash] button for the boiler to start the de- ashing process.
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Page 28: Clean The Draught Fan
WARNING! Burns caused by hot parts Fig. 2-58: Fan housing Risk of burning on parts located behind the boiler housing, even after shutting the boiler down. Allow the boiler to cool down sufficiently before starting any activities. www.eta.co.at... - Page 29 Cleaning and maintenance Maintenance (expert) Carefully clean the impeller with a soft brush (not a 2.6.3 Cleaning the heat exchanger wire brush) or compressed air to prevent imbalance. Replace the seal. Remove the cover on the top Remove the cover from the top of the boiler. Fig.
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Page 30: Check The Heat Exchanger Tubes
Fig. 2-66: Heat exchanger cover combustion chamber door or the lambda probe. Replace the insulation on the heat exchanger cover. • an incorrectly calibrated lambda probe • Insufficient boiler runtime (start-stop operation) Fig. 2-67: Insulation www.eta.co.at... -
Page 31: Check The Ash Box Position Switch
Cleaning and maintenance Maintenance (expert) 2.6.4 Check ash box position switch 2.6.5 Check air valve Checking the ash box position switch Dismantling the side covers Check the function of the position switch for the ash Remove the side covers from the side of the boiler on box. -
Page 32: Clean The Area Behind The Primary Air Valve
Fig. 2-75: Actuator for primary air necessary. A glued ceramic fibre seal can also be used as a seal. Actuate the actuator for the secondary air manually and check that it moves smoothly. Fig. 2-73: Seal Fig. 2-76: Actuator for secondary air www.eta.co.at... -
Page 33: Sensor
Cleaning and maintenance Maintenance (expert) For manual actuation, push the unlocking device (red 2.6.6 Check underpressure sensor button) and turn the drive 90° with the locking screw. Remove the cover on the front Remove the cover from the front of the boiler. Fig. -
Page 34: Calibrate The Vacuum Sensor
If a different value is shown, a calibration using the [Offset] parameter must be carried out. Inputs Negative-pressure Offset For this parameter, enter the difference from the target value of 0 Pa. Example: Negative-pressure = 2 Pa => Offset = -2 Fig. 2-84: Cover www.eta.co.at... -
Page 35: Check The De-Ashing System
Cleaning and maintenance Maintenance (expert) 2.6.7 Check de-ashing 2.6.8 Clean temperature sensor Checking the de-ashing Cleaning the flue gas temperature sensor on the flue gas connection Dismantle the maintenance cover of the heat exchanger cleaner. Loosen the screws and pull out the flue gas temperature sensor. -
Page 36: Clean The Lambda Probe
Fig. 2-90: Seal CAUTION! Do not operate with damaged seals Never operate the boiler with damaged seals. Otherwise, unwanted air is sucked in, disturbing the combustion process and causing increased wear. Always replace damaged seals immediately. www.eta.co.at... -
Page 37: Check The Boiler Doors
Cleaning and maintenance Maintenance (expert) 2.6.10 Attaching panels 2.6.11 Check boiler doors Installing the side covers Checking the airtightness of the combustion chamber door Re-install the side covers on the boiler. Open the combustion chamber door and then close it again. - Page 38 Closing roller holder Hinge Loosen the flange nuts (top and bottom) on the hinge and the closing roller holder and evenly reduce the gap (only slightly) to the boiler. Fig. 2-96: Reduceing the gap www.eta.co.at...
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Page 39: Check The Pellet Hopper
Cleaning and maintenance Maintenance (expert) 2.6.12 Check pellet hopper Checking the position sensor clearance Check the clearance between the sensor and the washer. The clearance should be about 2 - 3 mm. Removing the collector from the pellet hopper Remove the cover from the pellet hopper. Fig. -
Page 40: Clean The Fill Level Sensor
Practical tip: take a photo of the strainer through the fill level sensor opening (with your mobile phone, for example). From the pictures you will recognise which points of the strainer need to be cleaned. www.eta.co.at... -
Page 41: Calibrate The Lambda Probe
Cleaning and maintenance Maintenance (expert) 2.6.13 Calibrate lambda probe Re-installing the fill level sensor Re-install the mounting panel with the fill level sensor back on the pellet hopper. Observe the correct instal- Calibrating the lambda probe lation position. The boiler's built-in lambda probe checks the residual oxygen content of the flue gas and uses it to control the combustion. -
Page 42: Reset The Maintenance Counter
If the value does not drop below 12% residual oxygen content, the boiler is fed leak air. The reason must be identified and rectified (leaky combustion chamber door, heat exchanger cover, etc.). If possible, perform a flue gas measurement during test heating. www.eta.co.at... - Page 44 DOWNLOAD www.eta.co.at...