Eta HACK 20 kW Bedienungsanleitung

2017-01-09

0000000295

V.002

X.38.0

3004, 3105

93528-001 Wood chip boiler

20 - 90 kW

Service manual

ETA Heiztechnik

Gewerbepark 1

A-4716 Hofkirchen an der Trattnach

Tel: +43 (0) 7734 / 22 88 -0

Fax: +43 (0) 7734 / 22 88 -22

[email protected]o.at

www.eta.co.at

General information

1 General information

Support for cleaning and maintenance

This document helps support you with the cleaning

and maintenance of the boiler. 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 boiler number (printed on the type plate), the

date of commissioning as well as the heating

technician who commissioned the system.

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.

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

for claims. Individual configurations depicted or

described here are only available optionally. In the

event of contradictions between individual documents

regarding delivery scope, the information in our current

price list applies.

Explanation of symbols

Instructions and information

Layout of safety instructions

SIGNAL WORD!

Type and source of danger

Possible effects

• Measures for avoiding the danger

Types of safety instruction

CAUTION!

On non-compliance with this safety instruction, there is

a risk of material damage.

WARNING!

On non-compliance with this safety instruction, there is

a risk of physical injury.

DANGER!

On non-compliance with this safety instruction, there is

a risk of major physical injury.

Commissioning data

Boiler number:

________________________________________

Commissioned on:

_________________________________________

Commissioned by (company):

_________________________________________

4 www.eta.co.at

Maintenance notes Cleaning and maintenance

2 Cleaning and maintenance

2.1 Maintenance notes

Performing regular cleaning and maintenance

To ensure satisfactory functioning, cleaning and

maintenance must be performed at regular intervals.

Carry out this work within the intervals stated here.

All tasks where the maintenance table reads

"Customer" or "Customer or expert" in the column

"To be carried out by" can be carried out by any trained

adult. Instructions can be provided by the heating

technician or our customer service.

Steps that are marked with "Expert" only can only be

carried out by the heating technician or our customer

service.

Operation only by trained personnel

The product may be operated by trained adults only.

Training may be provided by the heating technician or

our customer service. Please read the associated doc-

umentation carefully in order to avoid errors during

operation and maintenance.

Persons who lack experience and knowledge as well

as children may not operate, clean, or maintain the

product.

Explanation of pictograms

Switch the boiler on/off with the mains switch.

Perform a visual check of the components.

Clean the components, for example, with a

soft cloth.

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.

Install the components with some force (for

example the retaining tube or the Lambda

probe).

Handle the components carefully, since they

break very easily.

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.

Checking the boiler counters

The counters can be seen in the boiler's text menu.

Counter [Full load hours since maint.] is used for the

service intervals. If it has reached one of the listed

intervals, maintenance is required. This counter is in:

Counters

Full load hours since maint.

Cleaning and maintenance Maintenance notes

6 www.eta.co.at

Maintenance openings in the boiler Cleaning and maintenance

2.2 Maintenance openings in the

boiler

Maintenance openings and components

The illustrations show a boiler with a size of 2 (63

- 90 kW) with its fuel discharge on the left side.

The fuel discharge depicted here is the standard con-

figuration.

1 Combustion chamber door

2 Secondary air actuator (mirrored for fuel discharge

installed on the right)

3 Actuator for tilting grate

4 Maintenance cover for optional flue gas recircula-

tion

5 Primary air actuator (mirrored for fuel discharge

installed on the right)

6 Firebed switch (mirrored for fuel discharge

installed on the right)

7 Safety switch for rotary valve maintenance cover

8 Plug screw for lubricating the stoker drive chain

9 Turnbuckle for the stoker drive chain

10 Drop chute safety switch

11 Drop chute maintenance cover

Cleaning and maintenance Maintenance openings in the boiler

1 Shut-off plug for optional flue gas recirculation

2 Maintenance cover for optional flue gas recircula-

tion

3 Flue gas temperature sensor

4 Heat exchanger cleaner

5 Ignition

6 Stoker drive chain

7 Maintenance cover for optional flue gas recircula-

tion

8 Plug screw for lubricating the de-ashing system's

drive chain

9 Draught fan

8 www.eta.co.at

Maintenance table Cleaning and maintenance

2.3 Maintenance table

Tasks Regular

Every

2500 h

1 year

Every

5000 h

3years

to be

performed by

Empty the ash box

• Remove excess ash from secondary combustion chamber

• Empty the ash box

• Check the seals

X X X Customer

Check the pressure of the heating system X X X Customer

Check safety devices

• Visual check of the safety valves

• Visual check of the thermal relief valve

• Check operational readiness of the safety devices in the fuel

path

X X Customer or

specialist

Chimney

• Clean the flue tube

• Flush the chimney's condensate drain X X Customer or

specialist

Clean combustion chamber

• Clean inside of the secondary combustion chamber

• Clean tilting grate

• Clean secondary air openings

• Clean the ignition tube

• Check firebed button and firebed switch

• Check refractory lining

X X Customer or

specialist

Clean heat exchanger

• Clean heat exchanger and downdraft channel

• Clean lambda probe

• Check heat exchanger tubes

• Check heat exchanger cleaner

• Check seal on heat exchanger cover

X X Customer or

specialist

Clean flue gas recirculator (optional)

• Clean flue gas recirculation piping

• Inspecting seals on maintenance covers X X Customer or

specialist

Clean the draught fan XSpecialist

Clean the temperature sensor XSpecialist

Check air valve for primary and secondary air XSpecialist

Check the ash box position switch XSpecialist

Check de-ashing system XSpecialist

Clean ignition XSpecialist

Check boiler doors XSpecialist

Check stoker

• Check stoker drive chain

• Check gap of the rotary valve position sensor XSpecialist

Check drop chute safety switch XSpecialist

Check end position of the rotary valve XSpecialist

Calibrate the lambda probe XSpecialist

Cleaning and maintenance Maintenance table

Reset the maintenance counter XSpecialist

Perform heating test XSpecialist

Tasks Regular

Every

2500 h

1 year

Every

5000 h

3years

to be

performed by

10 www.eta.co.at

Regularly Cleaning and maintenance

2.4 Regularly

2.4.1 Preparation

Stop heating

End the boiler's heating mode with the On/Off switch

in the boiler overview window. The boiler

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.

2.4.2 Empty the ash box

Remove excess ash from secondary combustion

chamber

Open the combustion chamber door and use the poker

to scrape the excess ash into the combustion

chamber.

The ash in the secondary combustion chamber

may not be steeper than 45°.

To remove this ash, initiate boiler de-ashing by

pressing the [De-ash] button.

Empty the ash box, inspect 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.

Open both lateral fasteners by pressing their safety

catches in the direction of the arrow. Remove the ash

box from the boiler.

Fig. 2-1: Fastener

Remove the lid by opening the fasteners and empty

the ash box.

Fig. 2-2: Check ash

If there are large pieces of slag in the ash, the

combustion chamber and the tilting grate must be

checked and the de-ashing interval reduced, if

necessary.

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