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Maintenance openings in the boiler

Cleaning and maintenance

2.2

Maintenance openings in the

boiler

Maintenance openings and components

The illustration shows a boiler with its fuel
discharge on the left side. The fuel discharge

depicted here is the standard configuration.

Combustion chamber door

Firebed switch (safety switch)

Firebed level sensor

Grate position switch

Actuator for primary air

Ash screw

Grate drive

Connection for measuring underpressure

Safety switch for rotary valve maintenance cover

10 Plug screw for lubricating the stoker drive chain

11 Turnbuckle for the stoker drive chain

12 Drop chute safety switch

13 Drop chute maintenance cover

Содержание eHACK 20-50 kW

Страница 1: ...2018 05 14 EN 0000000262 V 006 3 43 0 5007 93032 002 Wood chip boiler eHACK 20 50 kW Service manual...

Страница 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...

Страница 3: ...rom the owner Subject to technical changes We reserve the right to make technical modifications without notice Printing and typesetting errors or changes of any kind made in the interim are not cause...

Страница 4: ...nance Persons who lack experience and knowledge as well as children may not operate clean or maintain the product Display maintenance steps on the screen With this boiler the maintenance steps can als...

Страница 5: ...aintenance switch The maintenance switch is marked with the symbol and has two settings 1 regular operation This is the standard position of the maintenance switch The boiler can execute heating mode...

Страница 6: ...vents chemicals or scouring agents They can lead to stress cracks and damage Seal the components The sealant to use is listed in the respective step Use glue to adhere the seals for example Do not use...

Страница 7: ...Cleaning and maintenance Maintenance notes 7...

Страница 8: ...picted here is the standard configuration 1 Combustion chamber door 2 Firebed switch safety switch 3 Firebed level sensor 4 Grate position switch 5 Actuator for primary air 6 Ash screw 7 Grate drive 8...

Страница 9: ...3 Stoker drive chain 4 Ignition 5 Retaining tube of the lambda probe 6 Heat exchanger cleaning maintenance cover 7 Safety switch for the maintenance cover 8 De ashing drive 9 Flue gas temperature sens...

Страница 10: ...Cleaning and maintenance 1 Actuator of flue gas recirculation optional 2 Precipitator maintenance cover 3 Heat exchanger cover 4 Release button for safety temperature limiter STB 5 Mains switch symbo...

Страница 11: ...mbustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check the firebed button and firebed switch Check refractory l...

Страница 12: ...st Clean the lambda probe X Specialist Check stoker Checking the stoker drive chain Check gap of the rotary valve position sensor X Specialist Check drop chute safety switch X Specialist Check end pos...

Страница 13: ...lso 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 locking lever forwards on the boi...

Страница 14: ...er 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...

Страница 15: ...Cleaning and maintenance Regular maintenance 15 2 4 4 Establish operational readiness Switching on the boiler Switch the boiler back on with the On Off switch...

Страница 16: ...the heating system The outlets of the safety valves may not drip Fig 2 11 Safety valve If the safety valve drips open it with a quarter turn of the red cap and rinse it out danger of scalding If the...

Страница 17: ...is free as ash can block the outlet To check rinse the outlet with some water Fig 2 13 Condensate drain 2 5 4 Cleaning the combustion chamber Clean inside of the secondary combustion chamber Open the...

Страница 18: ...oker to clean the tilting grate and the openings in it let the ash fall down Fig 2 17 Tilting grate Do not hit the tilting grate with the poker Clean secondary air openings Clean secondary air opening...

Страница 19: ...ifting Fig 2 22 Firebed switch Check refractory lining Check the refractory lining of the primary and secondary combustion chambers for damage and cracks Replace combustion chamber cover Reinsert the...

Страница 20: ...walls of the flue gas duct only applies to boilers without precipitator Clean the inner walls of the flue gas duct with the cleaning brush Fig 2 28 Flue duct Check seal on the maintenance cover Inspe...

Страница 21: ...panel on the top of the boiler again Fig 2 32 Panel 2 5 6 Clean flue gas recirculator optional Remove the panel on the top Remove the panel on the top of the boiler Fig 2 33 Panel Check air valve for...

Страница 22: ...ue duct Fig 2 38 Sealing area CAUTION 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...

Страница 23: ...2 42 Insulation Remove the maintenance cover Fig 2 43 Maintenance cover Clean flue gas recirculation ducts Clean the inside of the flue gas duct with the clean ing brush The ash can to fall down Fig...

Страница 24: ...cover Inspect the seal of the maintenance cover to ensure it is in good working order replace if necessary Fig 2 49 Seal CAUTION Avoid operation with damaged seals Never operate the boiler with damage...

Страница 25: ...boiler again Fig 2 52 Panel 2 5 7 Clean precipitator optional Remove the panel on the top Remove the panel on the top of the boiler Fig 2 53 Panel Removing the maintenance cover Remove the insulation...

Страница 26: ...is will stir up the ash which can end up in the precipitator control system and cause damage Clean and inspect the electrode holder Clean the electrode holder with a soft cloth Fig 2 58 Electrode hold...

Страница 27: ...iler with damaged seals Otherwise leak air is sucked in disturbing the combustion process and causing increased wear Always replace seals as soon as they are damaged Installing the maintenance cover R...

Страница 28: ...ance 2 5 8 Establish operational readiness 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 b...

Страница 29: ...performs an ember burnout and then changes to Switched off mode Press the De ash button to make the boiler perform a final de ashing WARNING Switch off the electricity to the boiler via the mains swit...

Страница 30: ...nuts evenly Connect the power supply to the draught fan again 2 6 3 Cleaning the heat exchanger Remove the panel on the top Remove the panel on the top of the boiler Fig 2 67 Panel Remove heat exchang...

Страница 31: ...oor or the lambda probe an incorrectly calibrated lambda probe overly moist wood chips insufficient boiler runtime start stop operation Check seal on heat exchanger cover Inspect the integrity of the...

Страница 32: ...e insulation placed over the heat exchanger cover Fig 2 74 Insulation 2 6 4 Check ash box position switch Check ash box position switch Inspect the function of the ash box position switch It must be a...

Страница 33: ...front around the ash duct Fig 2 77 Cover Check air valve for primary and secondary air Manually operate the air valve actuator and check its freedom of movement Fig 2 78 Actuator for primary air Manua...

Страница 34: ...ximately 4 minutes of power supply before they are fully charged Only after this can a function test be carried out 2 Unlock the actuator for the primary air and turn it to the completely open positio...

Страница 35: ...y carefully blowing out or vacuuming out with a vacuum Vacuum out the connection on the front only with a vacuum Fig 2 86 Connection Calibrate underpressure sensor With the boiler switched off and sil...

Страница 36: ...on the front around the ash duct Fig 2 89 Cover 2 6 7 Check de ashing Check de ashing system Dismantle the heat exchanger cleaner maintenance cover Fig 2 90 Maintenance cover Check the de ashing syst...

Страница 37: ...he flue gas temperature sensor only from the bottom with a soft cloth Removal is not required Fig 2 93 Flue gas temperature sensor in heat exchanger 2 6 9 Clean lambda probe Clean lambda probe Vacuum...

Страница 38: ...ver Remount the heat exchanger cleaner maintenance cover Tighten the screws evenly and cross wise Fig 2 96 Maintenance cover 2 6 10 Attaching panels Mount all side panels Mount the boiler side panels...

Страница 39: ...tched off This prevents injuries caused by switching the boiler on inadver tently Check stoker drive chain Remove the drive chain cover by loosening the acorn nuts Fig 2 99 Cover Check the tension of...

Страница 40: ...chain spray Fig 2 102 Lubricate drive chain Check gap of the rotary valve position sensor Check the gap between the screw in the gear and the sensor The gap should be about 1 2 mm Fig 2 103 Gap betwee...

Страница 41: ...r screw Opening the drop chute cover results in a risk of crushing by the accessible conveyor screw Therefore perform only a visual check Never reach into the conveyor screw Check end position of the...

Страница 42: ...is Yes The function can be seen under It can be deliberately set to No if the used fuel requires it If the discharge screw and the stoker screw are in operation simultaneously and the function is set...

Страница 43: ...to the boiler 1 Closing roller mount 2 Hinge Loosen the flange nuts top and bottom on the hinge and the closing roller mount and evenly make the gap to the boiler a bit smaller Fig 2 111 Reduce gap Ti...

Страница 44: ...l system automatically performs another calibra tion 2 6 16 Establish operational readiness Reset maintenance counter When maintenance is complete reset the counter With the Service access level it wi...

Страница 45: ...Cleaning and maintenance Maintenance expert 45 After the heating test switch the boiler back to normal mode To do this press the Deactivate measurement button in the settings window...

Страница 46: ...lean the combustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Ch...

Страница 47: ...bustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check the fire...

Страница 48: ...ignition tubes Check the firebed button and firebed switch Check refractory lining Clean flue gas duct Clean the flue gas recirculation optional Check air valve for flue gas recirculation Clean flue...

Страница 49: ...er drive chain Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve Check boiler doors Calibrate the lambda probe Reset the maintenance c...

Страница 50: ...the combustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check t...

Страница 51: ...bustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check the fire...

Страница 52: ...ignition tubes Check the firebed button and firebed switch Check refractory lining Clean flue gas duct Clean the flue gas recirculation optional Check air valve for flue gas recirculation Clean flue...

Страница 53: ...er drive chain Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve Check boiler doors Calibrate the lambda probe Reset the maintenance c...

Страница 54: ...the combustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check t...

Страница 55: ...bustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check the fire...

Страница 56: ...ignition tubes Check the firebed button and firebed switch Check refractory lining Clean flue gas duct Clean the flue gas recirculation optional Check air valve for flue gas recirculation Clean flue...

Страница 57: ...er drive chain Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve Check boiler doors Calibrate the lambda probe Reset the maintenance c...

Страница 58: ...the combustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check t...

Страница 59: ...bustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check the fire...

Страница 60: ...ignition tubes Check the firebed button and firebed switch Check refractory lining Clean flue gas duct Clean the flue gas recirculation optional Check air valve for flue gas recirculation Clean flue...

Страница 61: ...er drive chain Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve Check boiler doors Calibrate the lambda probe Reset the maintenance c...

Страница 62: ...the combustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check t...

Страница 63: ...bustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check the fire...

Страница 64: ...ignition tubes Check the firebed button and firebed switch Check refractory lining Clean flue gas duct Clean the flue gas recirculation optional Check air valve for flue gas recirculation Clean flue...

Страница 65: ...er drive chain Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve Check boiler doors Calibrate the lambda probe Reset the maintenance c...

Страница 66: ...the combustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check t...

Страница 67: ...bustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check the fire...

Страница 68: ...ignition tubes Check the firebed button and firebed switch Check refractory lining Clean flue gas duct Clean the flue gas recirculation optional Check air valve for flue gas recirculation Clean flue...

Страница 69: ...er drive chain Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve Check boiler doors Calibrate the lambda probe Reset the maintenance c...

Страница 70: ...the combustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check t...

Страница 71: ...bustion chamber Clean inside of the secondary combustion chamber Clean primary and secondary combustion chamber Clean tilting grate Clean secondary air openings Clean the ignition tubes Check the fire...

Страница 72: ...ignition tubes Check the firebed button and firebed switch Check refractory lining Clean flue gas duct Clean the flue gas recirculation optional Check air valve for flue gas recirculation Clean flue...

Страница 73: ...er drive chain Check gap of the rotary valve position sensor Check drop chute safety switch Check end position of the rotary valve Check boiler doors Calibrate the lambda probe Reset the maintenance c...

Страница 74: ...www eta co at...

Страница 75: ......

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