Related Manuals for eta HACK 20 kW
Summary of Contents for eta HACK 20 kW
- Page 1 2017-01-09 0000000295 V.002 X.38.0 3004, 3105 93528-001 Wood chip boiler 20 - 90 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...
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Page 3: General Information
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: Cleaning And Maintenance
Remove deposits with a vacuum or an ash vacuum. Remove deposits with the poker. Remove deposits with the cleaning brush. Replace the wear parts (e.g. seals) on the components. Lubricate the components. The lubricant to use is listed in the respective step. www.eta.co.at... - Page 5 Cleaning and maintenance Maintenance notes...
- Page 6 11 Drop chute maintenance cover Maintenance cover for optional flue gas recircula- tion Primary air actuator (mirrored for fuel discharge installed on the right) Firebed switch (mirrored for fuel discharge installed on the right) Safety switch for rotary valve maintenance cover www.eta.co.at...
- Page 7 Cleaning and maintenance Maintenance openings in the boiler Shut-off plug for optional flue gas recirculation Maintenance cover for optional flue gas recircula- tion Flue gas temperature sensor Heat exchanger cleaner Ignition Stoker drive chain Maintenance cover for optional flue gas recircula- tion Plug screw for lubricating the de-ashing system's drive chain...
- Page 8 Check boiler doors Specialist Check stoker • Check stoker drive chain Specialist • Check gap of the rotary valve position sensor Check drop chute safety switch Specialist Check end position of the rotary valve Specialist Calibrate the lambda probe Specialist www.eta.co.at...
- Page 9 Cleaning and maintenance Maintenance table Every Every Regular 2500 h 5000 h to be Tasks performed by 1 year 3 years Reset the maintenance counter Specialist Perform heating test Specialist...
- Page 10 By knocking on the vertical wall of the ash box, checked and the de-ashing interval reduced, if you can also check the ash level without opening necessary. the box. A full ash box makes a short, dull thump. When empty it makes a hollower sound like a drum. www.eta.co.at...
- Page 11 Cleaning and maintenance Regularly 2.4.3 Check pressure of the heating Inspect the seal on the ash box lid to ensure it is in good order, and replace it if necessary. system Check heating system water pressure In buildings with up to three storeys, the optimum water pressure in a cold heating system is between 1 and 2 bar.
- Page 12 Check the safety devices in the fuel path, such as the temperature-monitoring system, manually operated extinguishing system or the automatic extin- guishing system. Also check malfunction indicators and alarms, for example if messages from the boiler room are displayed elsewhere. www.eta.co.at...
- Page 13 Cleaning and maintenance 2500 h / annually 2.5.3 Chimney Checking the thermal relief valve Visually examine the thermal relief valve. The outlet should not drip. Clean the flue tube Sweep the flue tube from the flue outlet to the chimney and remove flue ash from the chimney using a vacuum cleaner.
- Page 14 Remove the combustion chamber cover in the secondary combustion chamber. Fig. 2-13: Actuator Use the poker to clean the tilting grate and the Fig. 2-11: Combustion chamber cover openings in it; let the ash fall down. Fig. 2-14: Tilting grate www.eta.co.at...
- Page 15 Cleaning and maintenance 2500 h / annually Do not hit the tilting grate with the poker. Check firebed button and firebed switch Check the mobility of the firebed button in the Clean secondary air openings combustion chamber by repeated lifting. Clean secondary air openings (above the tilting grate).
- Page 16 180°. Mount the cover on the front of the boiler. Also re-install the screws for securing the cover. Fig. 2-22: Knurled nuts and ball knobs Remove the heat exchanger cover. Fig. 2-20: Cover Fig. 2-23: Heat exchanger cover www.eta.co.at...
- Page 17 Cleaning and maintenance 2500 h / annually Clean heat exchanger and downdraft channel Remove the internal cover between the secondary combustion chamber and the heat exchanger. Clean lambda probe Vacuum out the head of the lambda probe using a vacuum cleaner. Do not dismantle the lambda probe. Fig.
- Page 18 Lubricate the spring, guide and bearing with a heat-resistant lubricant. Check seal on heat exchanger cover Inspect the integrity of the seal on the heat exchanger cover and replace if necessary. Fig. 2-29: Lever Fig. 2-31: Heat exchanger cover www.eta.co.at...
- Page 19 Cleaning and maintenance 2500 h / annually Put the insulating cover back on. CAUTION! Avoid operation with damaged seals Never operate the boiler with damaged seals. Otherwise, leak air is sucked in, disturbing the combustion process and causing increased wear. ...
- Page 20 Brush out the pipes of the flue gas recirculation with the brush and remove the ash with a vacuum cleaner. Fig. 2-35: Maintenance cover Also remove the shut-off plug (if present). Fig. 2-38: Pipes Fig. 2-36: Shut-off plug Fig. 2-39: Pipes www.eta.co.at...
- Page 21 Cleaning and maintenance 2500 h / annually Also brush out and clean out the pipes on the front side Re-install maintenance cover. of the boiler. Replace the shut-off plug (if this was already installed). Fig. 2-40: Pipes Fig. 2-42: Shut-off plug Inspecting seals on maintenance covers Re-install all maintenance covers for flue gas recircu- Check all seals for the maintenance cover of the flue...
- Page 22 Switch the boiler on via the mains switch and start de-ashing. Establish the boiler's power supply at the mains switch. Press the [De-ash] button to de-ash the boiler. Switch the boiler back on with the On/Off switch. Fig. 2-44: Maintenance cover www.eta.co.at...
- Page 23 Cleaning and maintenance 5000 h / 3 years 5000 h / 3 years 2.6.2 Clean draught fan Clean the draught fan 2.6.1 Preparation Unplug the power supply and remove the draught fan from the boiler by removing the wing screws. Before this maintenance, perform all steps for the preceding maintenance intervals Before this maintenance, all steps for the...
- Page 24 To clean, loosen the screw and pull out the flue gas temperature sensor. Clean the sensor with a soft cloth and then re-install it. When fixing the temperature sensor in place, only tighten the screw hand-tight so as not to damage the sensor. Fig. 2-48: Flue gas temperature sensor www.eta.co.at...
- Page 25 Cleaning and maintenance 5000 h / 3 years 2.6.4 Check air valve For manual operation, push the release button (red button) and manually turn the actuator through 90° with the set screw. Remove the cover on the front Remove the screws for securing the cover. Push the cover on the front up slightly, detach and remove it.
- Page 26 Start de-ashing in order to check de-ashing of the boiler. The movement of the turbulators in the heat exchanger must be audible, the tilting grate must tip and then close again, and the ash screws must operate without malfunction. www.eta.co.at...
- Page 27 Cleaning and maintenance 5000 h / 3 years 2.6.7 Clean ignition Also clean the opening in the boiler for the ignition tube. Clean ignition fan and photocell Remove the ignition fan from the boiler. Fig. 2-57: Ignition tube Re-install the ignition fan and attach it to the boiler with Fig.
- Page 28 Attach the door and check whether it closes fully. If not, repeat the process. Always adjust hinges closing roller mount so that the seal is evenly compressed. Closing roller mount Hinge www.eta.co.at...
- Page 29 Cleaning and maintenance 5000 h / 3 years 2.6.9 Check stoker If it sags more, the chain must be tensioned with the turnbuckle. Check stoker drive chain Remove the drive chain cover by loosening the acorn nuts. Fig. 2-63: Turnbuckle Lubricate the drive chain with chain spray.
- Page 30 Remount the drive chain cover. Fig. 2-67: Contact switch on the drop chute Check drop chute safety switch Check the safety switch on the drop chute. To do so, raise the drop chute cover. Fig. 2-66: Cover Fig. 2-68: Drop chute safety switch www.eta.co.at...
- Page 31 Cleaning and maintenance 5000 h / 3 years 2.6.11 Check end position of the Next perform a visual check of the rotary valve end position. To do so, remove the locking nut and the rotary valve spring and raise the drop chute cover. WARNING! Injuries caused by moving parts Possible danger of crushing by stoker drive...
- Page 32 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 33 Cleaning and maintenance 5000 h / 3 years 2.6.13 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 34 Check heat exchanger tubes • Check heat exchanger cleaner • Check seal on heat exchanger cover Clean flue gas recirculator (optional) • Clean flue gas recirculation piping • Inspecting seals on maintenance covers performed on: _________________________ performed by: _________________________ Comments: www.eta.co.at...
- Page 35 Records Cleaning (customer) Cleaning (customer) Cleaning is to be carried out once a year or after 2500 hours. Tasks Notes Empty the ash box • Remove excess ash from secondary combustion chamber • Empty the ash box • Check the seals Check the pressure of the heating system _________ bar Check safety devices...
- Page 36 Check the ash box position switch Check de-ashing system Clean ignition Check boiler doors Check stoker • Check stoker drive chain • Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve www.eta.co.at...
- Page 37 Records Maintenance (expert) Tasks Notes Calibrate the lambda probe Reset the maintenance counter Perform heating test performed on: _________________________ performed by: _________________________ Comments:...
- Page 38 Check heat exchanger tubes • Check heat exchanger cleaner • Check seal on heat exchanger cover Clean flue gas recirculator (optional) • Clean flue gas recirculation piping • Inspecting seals on maintenance covers performed on: _________________________ performed by: _________________________ Comments: www.eta.co.at...
- Page 39 Records Cleaning (customer) Cleaning (customer) Cleaning is to be carried out once a year or after 2500 hours. Tasks Notes Empty the ash box • Remove excess ash from secondary combustion chamber • Empty the ash box • Check the seals Check the pressure of the heating system _________ bar Check safety devices...
- Page 40 Check the ash box position switch Check de-ashing system Clean ignition Check boiler doors Check stoker • Check stoker drive chain • Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve www.eta.co.at...
- Page 41 Records Maintenance (expert) Tasks Notes Calibrate the lambda probe Reset the maintenance counter Perform heating test performed on: _________________________ performed by: _________________________ Comments:...
- Page 42 Check heat exchanger tubes • Check heat exchanger cleaner • Check seal on heat exchanger cover Clean flue gas recirculator (optional) • Clean flue gas recirculation piping • Inspecting seals on maintenance covers performed on: _________________________ performed by: _________________________ Comments: www.eta.co.at...
- Page 43 Records Cleaning (customer) Cleaning (customer) Cleaning is to be carried out once a year or after 2500 hours. Tasks Notes Empty the ash box • Remove excess ash from secondary combustion chamber • Empty the ash box • Check the seals Check the pressure of the heating system _________ bar Check safety devices...
- Page 44 Check the ash box position switch Check de-ashing system Clean ignition Check boiler doors Check stoker • Check stoker drive chain • Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve www.eta.co.at...
- Page 45 Records Maintenance (expert) Tasks Notes Calibrate the lambda probe Reset the maintenance counter Perform heating test performed on: _________________________ performed by: _________________________ Comments:...
- Page 46 Check heat exchanger tubes • Check heat exchanger cleaner • Check seal on heat exchanger cover Clean flue gas recirculator (optional) • Clean flue gas recirculation piping • Inspecting seals on maintenance covers performed on: _________________________ performed by: _________________________ Comments: www.eta.co.at...
- Page 47 Records Cleaning (customer) 3.11 Cleaning (customer) Cleaning is to be carried out once a year or after 2500 hours. Tasks Notes Empty the ash box • Remove excess ash from secondary combustion chamber • Empty the ash box • Check the seals Check the pressure of the heating system _________ bar Check safety devices...
- Page 48 Check the ash box position switch Check de-ashing system Clean ignition Check boiler doors Check stoker • Check stoker drive chain • Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve www.eta.co.at...
- Page 49 Records Maintenance (expert) Tasks Notes Calibrate the lambda probe Reset the maintenance counter Perform heating test performed on: _________________________ performed by: _________________________ Comments:...
- Page 50 Check heat exchanger tubes • Check heat exchanger cleaner • Check seal on heat exchanger cover Clean flue gas recirculator (optional) • Clean flue gas recirculation piping • Inspecting seals on maintenance covers performed on: _________________________ performed by: _________________________ Comments: www.eta.co.at...
- Page 51 Records Cleaning (customer) 3.14 Cleaning (customer) Cleaning is to be carried out once a year or after 2500 hours. Tasks Notes Empty the ash box • Remove excess ash from secondary combustion chamber • Empty the ash box • Check the seals Check the pressure of the heating system _________ bar Check safety devices...
- Page 52 Check the ash box position switch Check de-ashing system Clean ignition Check boiler doors Check stoker • Check stoker drive chain • Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve www.eta.co.at...
- Page 53 Records Maintenance (expert) Tasks Notes Calibrate the lambda probe Reset the maintenance counter Perform heating test performed on: _________________________ performed by: _________________________ Comments:...
- Page 54 Check heat exchanger tubes • Check heat exchanger cleaner • Check seal on heat exchanger cover Clean flue gas recirculator (optional) • Clean flue gas recirculation piping • Inspecting seals on maintenance covers performed on: _________________________ performed by: _________________________ Comments: www.eta.co.at...
- Page 55 Records Cleaning (customer) 3.17 Cleaning (customer) Cleaning is to be carried out once a year or after 2500 hours. Tasks Notes Empty the ash box • Remove excess ash from secondary combustion chamber • Empty the ash box • Check the seals Check the pressure of the heating system _________ bar Check safety devices...
- Page 56 Check the ash box position switch Check de-ashing system Clean ignition Check boiler doors Check stoker • Check stoker drive chain • Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve www.eta.co.at...
- Page 57 Records Maintenance (expert) Tasks Notes Calibrate the lambda probe Reset the maintenance counter Perform heating test performed on: _________________________ performed by: _________________________ Comments:...
- Page 58 Check heat exchanger tubes • Check heat exchanger cleaner • Check seal on heat exchanger cover Clean flue gas recirculator (optional) • Clean flue gas recirculation piping • Inspecting seals on maintenance covers performed on: _________________________ performed by: _________________________ Comments: www.eta.co.at...
- Page 59 Records Cleaning (customer) 3.20 Cleaning (customer) Cleaning is to be carried out once a year or after 2500 hours. Tasks Notes Empty the ash box • Remove excess ash from secondary combustion chamber • Empty the ash box • Check the seals Check the pressure of the heating system _________ bar Check safety devices...
- Page 60 Check the ash box position switch Check de-ashing system Clean ignition Check boiler doors Check stoker • Check stoker drive chain • Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve www.eta.co.at...
- Page 61 Records Maintenance (expert) Tasks Notes Calibrate the lambda probe Reset the maintenance counter Perform heating test performed on: _________________________ performed by: _________________________ Comments:...
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