Related Manuals for eta eHACK 80
Summary of Contents for eta eHACK 80
- Page 1 2020-02-18 0000000355 V.008 3.48.0 5108 93086-002 Wood chip boiler eHACK 60-80 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.
- Page 4 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 con- nection 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 14 Drop chute maintenance cover Vacuum sensor Grate position switch Actuator for primary air Ash screw Grate drive Connection for measuring underpressure 10 Safety switch for rotary valve maintenance cover 11 Plug screw for lubricating the stoker drive chain www.eta.co.at...
- Page 9 Cleaning and maintenance Maintenance openings in the boiler Actuator for secondary air Stoker drive chain Ignition Retaining tube of the lambda probe Heat exchanger cleaner maintenance cover Safety switch for the maintenance cover De-ashing drive Flue gas temperature sensor in heat exchanger Water pressure sensor 10 Draught fan 11 Flue gas temperature sensor on flue gas...
- Page 10 Maintenance openings in the boiler Cleaning and maintenance Actuator of flue gas recirculation (optional) 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...
-
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: Mainte
Check the clearance/gap of the rotary valve posi- tion sensor Check drop chute safety switch Specialist Check the end position of the rotary valve Specialist Check the boiler doors Specialist 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 The ash box can be lifted on the bottom with a handcart and transported. 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
The safety valve triggers at approx. 2.8 bar. If the water pressure drops several times a year, contact a heating professional. When refilling water in the heating system, the same water as used during initial filling should be used whenever possible (e.g. treated water). www.eta.co.at... - Page 15 Cleaning and maintenance Regular maintenance 2.4.4 Establish operational readiness Switching on the boiler Switch the boiler back on using the on / off switch .
-
Page 16: Check The Safety Devices
Check the safety devices in the fuel path such as: the temperature monitoring device, the manual extinguish- ing device or the automatic extinguishing device. Also, check fault detectors and warning devices if, for example, they display messages from the boiler room at a different location. www.eta.co.at... -
Page 17: Clean The Flue Tube
Cleaning and maintenance Cleaning (customer) 2.5.3 Chimney 2.5.4 Cleaning the combustion chamber Clean flue tube Cleaning the inside of the combustion chamber Sweep the flue duct from the flue outlet to the chimney Open the combustion chamber door and use the poker and remove the fly ash from the chimney with an ash to scrape off the ash from the inner surfaces of the vacuum cleaner. -
Page 18: Clean The Tilting Grate
Cleaning the secondary air openings otherwise removed by vacuuming. Clean the opening for the secondary air (above the tilting grate) with an ash vacuum, for example. Fig. 2-17: Ceramic fibre fleece Fig. 2-19: Secondary air openings www.eta.co.at... -
Page 19: Clean The Ignition Tubes
Cleaning and maintenance Cleaning (customer) Cleaning the ignition tubes Checking the firebed lever and firebed switch Clean both ignition tubes by suction and carefully Check the movement of the firebed lever in the remove any deposits. combustion chamber by repeated lifting. Fig. -
Page 20: Clean The Flue Gas Duct
Remove the insulation above the maintenance cover. cover must point to the top of the boiler. Mount cover on the front Mount the cover on the front of the boiler. Fig. 2-27: Insulation Remove the maintenance cover. Fig. 2-25: Cover Fig. 2-28: Maintenance cover www.eta.co.at... - Page 21 Cleaning and maintenance Cleaning (customer) Cleaning the inner walls of the flue gas duct Installing the maintenance cover Clean the insides of the flue gas duct with the cleaning Re-attach the maintenance cover. Tighten the screws brush. Allow the ash to fall down. alternately and evenly.
-
Page 22: Check The Air Valve For Flue Gas Recirculation
If the actuator is difficult to move, remove it. grease or other lubricants. The reason for this is because dust particles in the flue gas adhere to the lubricant and cause encrustation and sluggishness. Fig. 2-35: Actuator www.eta.co.at... -
Page 23: Clean The Flue Gas Recirculation Ducts
Cleaning and maintenance Cleaning (customer) Check if the seal on the cover is intact and replace if Cleaning the flue gas recirculation ducts necessary. Remove the maintenance cover and the enclosed seal for the primary air valve. Fig. 2-38: Seal Re-install the actuator. -
Page 24: Clean The Precipitator (Optional)
Mounting the cover on the ash duct Re-install the cover on the front of the ash duct. Removing the maintenance cover Remove the insulation above the maintenance cover. Fig. 2-44: Cover Fig. 2-45: Insulation Remove the maintenance cover. Fig. 2-46: Maintenance cover www.eta.co.at... -
Page 25: Clean The Upper Section Of The Precipitator
Use an ash vacuum to vacuum out the opening for the small holes can be "felt", there is damage. In this case, flushing air from the electrode at the isolator. contact ETA Customer Support. Check the alignment of the electrodes The electrode must be in the centre of the precipitator, so that the flue gas can be optimally cleaned. - 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. 2-52: Maintenance cover www.eta.co.at...
- Page 27 Cleaning and maintenance Cleaning (customer) 2.5.8 Establish operational readiness Mounting the cover on the top Re-install the cover back on top of the boiler. Fig. 2-54: 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.
-
Page 28: Clean The Draught Fan
Burns caused by hot parts Replace the seal. 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. Fig. 2-57: Cleaning the impeller, replacing the seal www.eta.co.at... - Page 29 Cleaning and maintenance Maintenance (expert) Lubricate the screws with heat-resistant lubricant and 2.6.3 Cleaning the heat exchanger re-attach the draught fan to the boiler. Tighten the nuts alternately and evenly. Plug the power supply back into Remove the cover on the top the draught fan.
-
Page 30: Check The Heat Exchanger Tubes
• leak air through the heat exchanger cover, the combustion chamber door or the lambda probe. • an incorrectly calibrated lambda probe Fig. 2-64: Heat exchanger cover • overly moist wood chips • Insufficient boiler runtime (start-stop operation) www.eta.co.at... -
Page 31: Check The Ash Box Position Switch
Cleaning and maintenance Maintenance (expert) Replace the insulation on the heat exchanger cover. 2.6.4 Check ash box position switch Checking the ash box position switch Check the function of the position switch for the ash box. It must be actuated when the ash box is attached. Fig. -
Page 32: Check The Air Valve
Removing the cover on the ash duct Remove the cover on the front of the ash duct. Fig. 2-70: Primary air valve Use an ash vacuum to remove the ash from the area behind it. Fig. 2-68: Cover Fig. 2-71: Remove ash www.eta.co.at... -
Page 33: Check The Air Valve For Primary And Secondary Air
Cleaning and maintenance Maintenance (expert) Inspect the integrity of the seal and replace it if Checking the air valve for primary and secondary necessary. A glued ceramic fibre seal can also be used as a seal. Actuate the actuator for the primary air manually and check that it moves smoothly. - Page 34 Fig. 2-82: Flue gas recirculation closes The function test is successful if the actuators rotate back into the closed position. If they do not move, please contact ETA customer service. Fig. 2-79: Flue gas recirculation fully opened www.eta.co.at...
-
Page 35: Sensor
Cleaning and maintenance Maintenance (expert) 2.6.6 Check underpressure sensor Mounting the cover on the ash duct Re-install the cover on the front of the ash duct. Remove the cover on the front Remove the cover from the front of the boiler. Fig. -
Page 36: 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 Fig. 2-89: Cover value of 0 Pa. Example: Negative-pressure = 2 Pa => Offset = -2 www.eta.co.at... -
Page 37: 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 38: Clean The Lambda Probe
Fig. 2-95: 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 39: Check Stoker
Cleaning and maintenance Maintenance (expert) 2.6.10 Attaching panels 2.6.11 Check stoker Installing the side covers WARNING! Re-install the side covers on the boiler. Injuries caused by moving parts Possible danger of crushing by stoker drive chain. The boiler must be switched off. This prevents injuries caused by switching the boiler on inadver- tently. - Page 40 Check the gap between the screw in the gear and the Fig. 2-100: Stoker drive chain sensor. The gap should be about 1 - 2 mm. If it sags more, the chain must be tensioned with the turnbuckle. Fig. 2-103: Gap between sensor and screw Fig. 2-101: Turnbuckle www.eta.co.at...
-
Page 41: Check Drop Chute Safety Switch
Cleaning and maintenance Maintenance (expert) 2.6.12 Inspect safety switch on the drop Mounting the drive chain cover chute Re-install the cover. Check the contact switch on the drop chute Check the contact switch on the chute. Raise the drop chute cover slightly. Fig. -
Page 42: Check The End Position Of The Rotary Valve
[Yes], either the sensor is faulty or the gap between the screw in the gear and the sensor is too large and must be adjusted. The gap should be about 1 - 2 mm. www.eta.co.at... -
Page 43: Check The Boiler Doors
Cleaning and maintenance Maintenance (expert) 2.6.14 Check boiler doors Adjustment requires the removal of the combustion chamber door. To do this, lift the combustion chamber door slightly when it is open, unhook it and carefully Checking the airtightness of the combustion place the door next to the boiler. -
Page 44: Calibrate The Lambda Probe
Altogether, these steps last approxi- mately 1.5 to 2 hours. When the calibration is complete, the boiler goes back into operation and starts heating, if necessary. After another 100 hours of operation, the control system automatically performs another calibra- tion. www.eta.co.at... -
Page 45: Reset The Maintenance Counter
Cleaning and maintenance Maintenance (expert) 2.6.16 Establish operational readiness After the heating test, switch the boiler back to normal mode. To do this, press the [Deactivate measurement] button in the settings window. Reset maintenance counter When maintenance is complete, reset the counter. With the [Service] access level, it will be visible in the boiler text menu under: Counters... - Page 46 www.eta.co.at...
- Page 48 DOWNLOAD www.eta.co.at...
Need help?
Do you have a question about the eHACK 80 and is the answer not in the manual?
Questions and answers