eta TWIN 20 kW, TWIN 26 kW, SH20kW, SH40kW, SH30kW Operation
...
2016-04-02
EN
0000000302
V.001
X.36.0
2303
93412-001
TWIN pellet burner
20-26 kW
Operation
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
3
Contents
1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Warranty, guarantee and liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Emission measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Log boiler emission measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 TWIN emission measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Boiler functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Automatic operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.2 Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Suitable fuels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7 Correct quantity of wood. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9 ETAtouch controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
9.1 Getting to know the control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
9.1.1 User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1.2 Text menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.1.3 Integrated help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.1.4 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9.1.5 Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.1.6 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.1.7 meinETA remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.2 [Boiler] function block – log boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2.1 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.3 [TWIN] function block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.3.1 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.3.2 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4 [Buffer] function block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.4.1 Setting the buffer charging times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.4.2 Buffer with solar heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.4.3 Buffer as a combination tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9.4.4 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
9.5 [Hot water tank] function block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
9.5.1 Setting the hot water charging times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
9.5.2 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
9.6 [Fresh water module] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
9.6.1 Setting the hot water charging times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
9.6.2 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
9.7 [Heating circuit] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
9.7.1 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4 www.eta.co.at
9.7.2 Setting the heating time slots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
9.7.3 The heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
9.7.4 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
9.8 [Solar] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.8.1 Solar heating system with one tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
9.8.2 Solar heating system with 2 tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
9.8.3 Solar heating system for buffer with 2 internal coils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
9.8.4 Solar heating system with external heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
9.8.5 Solar heating system with external heat exchanger and stratified charging valve. . . . . . . . . . 69
9.8.6 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
9.9 [Pellet store] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9.10 [Pellet store with switch unit] function block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
9.10.1 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10 Regular cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
11 Heating value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
12 Low-emission operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
13 Heating water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
13.1 Water hardness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
13.2 Refilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
General Preface
5
1 General
1.1 Preface
Dear customer,
This user manual provides important information and
instructions, to ensure safe and satisfactory operation
of your product. Please take the time to look thr ough it.
Warranty and guarantee
You should also read the "Conditions for warranty,
guarantee, liability" (see 1.3 "
Warranty, guarantee and
liability") carefully. As a rule, these conditions will be
satisfied by a professional heating technician. Nevertheless, inform the technician of our warranty
conditions. All of the requirements we impose are
intended to prevent damage that neither you nor we
wish to occur.
Read the user manual
Please read the user manual carefully before starting
up the system. This is the only way to ensure that you
can operate your new boiler efficiently and with
minimum environmental impact.
Description of log boiler and pellet burner
In addition to descriptions of the TWIN pellet burner,
this manual also includes information about start-up,
operation, cleaning and maintenance of the log boiler.
Take advantage of the knowledge and skills of an
expert
Only allow an expert to assemble, install and
commission the equipment and carry out the basic
boiler settings. Insist on receiving an explanation and
training on how your new boiler functions and how to
operate and maintain it.
Extended warranty
We grant an extended warranty if the product is commissioned by an authorised partner comp any or by ou r
own customer service. In this regard, please note the
warranty conditions applicable at the time of purchase.
Service agreement
You can ensure the best care for your heating system
by taking out a service agreement with one of our
certified contractors or our own customer service.
Remote control of the boiler via the internet
The remote control enables you to o perate your ETA
boiler remotely via your own network (VNC Viewer) or
the internet <www.meinETA.at> using a PC,
smartphone or tablet, as though you were standing
right in front of the ETAtouch control system of your
ETA boiler. A LAN cable is required for the connection
from the ETAtouch control system to the internet
modem.
Details for the remote control can be found in the
manual "Communication platform meinETA".
Details for the connection of the LAN cable can be
found in the boilers installation manual.
1.2 General information
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.
Subject to technical alterations
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 optionally available. In the
event of contradictions between individual documents
regarding delivery scope, the information in our cu rrent
price list applies.
Software Description
The software version described in this documentation
corresponds to the version valid at the time of publication. The software version installed on your product
may differ from that described in this documentation.
A software update to a more recent version can
always be performed. With the appropriate authorisation, the required files can be found at
"www.eta.co.at".
Explanation of symbols
Instructions and information
Layout of safety instructions
SIGNAL WORD!
Type and source of danger
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Warranty, guarantee and liability General
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.
1.3 Warranty, guarantee and liability
Requirements
We can only accept liability for the function of our
products if they are correctly installed and operated.
This is only possible if the conditions below are
complied with.
Maximum of 2,000 hours at full load per year
The boiler described in this user manual may only be
used for heating and producing hot water , with no more
than 2,000 full-load hours annually.
Installation in a dry room
For set-up, a dry room is required. In particular, only
condensation dryers may be used as clothes dryers in
the same room.
Observe local building and fire safety regulations
Local building and fire safety regulations must be
observed.
Suitable fuel – logs
The log boiler is suitable for use with wood briquettes
and air-dried split logs with no more than 20% water
content. Use with unsuitable fuels, especially refuse,
coal and coke, and also wet wood, is not permitted.
Suitable fuel
The boiler is suitable for use with wood pellets
according to EN ISO 17225-2:2014, quality class A1,
ENplus-A1. Operation with unsuitable fuels, in
particular those containing halogens (chlorine) or highslag pellets such as from grain waste, is not permitted.
Ensure supply air is free from aggressive
substances
The air supplied to the boiler must be free from
aggressive substances such as chlorine and fluorine
from solvents, cleaning agent s, adhe sive s and p ro pellants, or ammonia from cleaning agents, to prevent
corrosion of the boiler and chimney.
Permissible water hardness
Water is the intended heat-transfer medium. For
special anti-frost requirements, up to 30% glycol may
be added. Softened water is required for the initial fillup of the heating system and for refilling after repairs.
Addition of hard water should be minimised to limit
limescale build-up in the boiler.
In order to protect the boiler from calcification, the
water hardness of the heating water must be
taken into account. Observe the indications outlined in
ÖNORM H 5195-1. Details can be found in chapter 13
"Heating water".
pH value between 8 and 9
The pH value of water used to fill the heating system
must be between 8 and 9.
Use a sufficient number of shut-off valves
Set enough shut-off valves to avoid bleeding large
amounts of water during repairs. Any leaks in the
system must be repaired at once.
Minimum return temperature 60°C
Ensure a minimum return tem perature of 60°C to the
boiler.
Install safety valve and thermal relief valve
A safety valve (triggered at 3 bar) as protection ag ainst
excess pressure and a thermal relief valve (triggered
at 97 °C) to protect against overheating must be
installed by the contractor.
Provide a sufficiently large expansion tank or a
pressure maintaining device
To prevent air from being drawn in while the system is
cooling, the heating system professional must provide
a sufficiently large expansion tank or a pressure
maintaining device.
General Warranty, guarantee and liability
7
Open expansion tanks must not be used.
Sufficient power
Operation at lower power than the lowest power
specified on the type plate is not permitted.
Expanding the control system
Only components provided by us may be used for
expanding the control system, unless these are
generally available standard devices, such as thermostats.
Regularly perform cleaning and maintenance
Cleaning and maintaining the product is essential. The
required steps and intervals are either contained in this
documentation or included as a separate document.
Repairs
Repairs are only permitted using spare parts provided
by us. The only exceptions are commonly available
standard parts such as electrical fuses or fastening
materials, provided such parts have the necessary
features and do not compromise the safety of the
system.
Proper installation
The installing contractor is liable for proper installation
according to the corresponding installation instructions
and the relevant rules and safety regulations. If you as
customer have installed the heating system partly or
entirely without relevant training and in particular
without up-to-date practical experience, without having
the installation checked by a trained and responsible
expert, we exclude defects in our delivery and consequential damages resulting from this cause from our
warranty, guarantee and liability.
Repair of defects
For repairs of defects carried out by the customer or by
a third party, ETA shall only bear the costs or remain
obligated by warranty if this work was approved in
writing in advance by the customer service of ETA
Heiztechnik GmbH.
No tampering with boiler safety devices
Boiler safety devices such as those mentioned below
must not be tampered with: Temperature monitoring
and control devices, safety temperature limiters, safety
valves and thermal discharge valves.
8 www.eta.co.at
Log boiler emission measurement Emission measurement
2 Emission measurement
Why measure emissions?
It is a requirement for the carbon monoxide (CO)
emissions of every boiler to be measured periodically.
In Germany, this periodic measurement must also
include a dust measurement.
There are several aspects of this that could go wrong,
resulting in incorrect measurements even though the
boiler fully and consistently complies with these limits
when operating in accordance with the relevant
standards.
Notes on emission measurement in Germany
In accordance with the provisions of "BImSchV,"
lower limit values for the emission measurement
in Germany apply to all new heating system installations starting 1 January 2015. Notes on compliance
are found under 12 "
Low-emission operation".
Clean the boiler 3 - 5 days before the emission
measurement
Thoroughly clean the boiler and flue pipe 3 - 5 days
before the emission measurement. Once this is
complete, heating can resume as usual.
This delay between cleaning and measurement
is necessary in order to allow dust disturbed
during cleaning to settle again. If the chimney sweep
measures unsettled dust, the dust reading will be
higher than normal and thus inaccurate.
CAUTION!
Under no circumstances clean the boiler and flue
pipe on the day of the measurement!
Buffer and boiler must be cold
Before the start of the emission measurement, the
buffer and the boiler must have cooled down to ensure
heat consumption in the heating system during the
emission measurement.
Preferably, the boiler should not be used the night
before the emission measurement.
Ensure sufficient heat consumption
Open all radiator valves and turn radiator thermostats
to maximum.
2.1 Log boiler emission
measurement
Use half-metre split logs
Use half-metre split logs for the emission measurement. Place them as close together as poss ible in the
fuel chamber to fill it as completely as possible.
However, keep the burn- through openings in the gr ate
free.
Prepare and perform emissions measurement
1. In the log boiler overview, press the [Measure-
ment] button in order to open the emissions
measurement settings window.
Fig. 2-1: Settings window for emission measurement
2. By pressing the [Start now] button, the log
boiler will immediately begin preparations for a
subsequent measurement after heating up.
Use the [Begin measurement] button to enter
the date agreed for chimney sweeping. If the date
has been entered, it will appear in the boiler
overview.
Fig. 2-2: Set date
In addition, the locking time of the log boiler can be
adjusted ( [Lock duration] button). This relates
to the set time of the measurement. During this
period, a warning notice will appear that no heating
operation should be started, so that the heating
system has time to cool down.
Example: If a time of 17:00 is set for emissions
Emission measurement TWIN emission measurement
9
measurement and a cool-down time of [Lock
duration] 8 h, the warning notice will appear
starting at 9:00 .
3. The log boiler must be heated up approximately 2
hours before the measurement in order to reach
the permissible operating temperature that is
required for measurement.
4. When the log boiler is ready for emissions measurement, a corresponding message will appear
on the screen. In addition, a countdown for the
emissions measurement will be displayed. The
emission measurement is to be carried ou t during
this period.
Fig. 2-3: Countdown
No doors on the log boiler may be opened
during the emission measurement. Also, do
not stoke the fire in the log boiler.
5. Switch the boiler back to normal mode after the
emission measurement. To do this, press the
[Deactivate measurement] button in the
settings window. If you do not press this button, the
boiler will automatically switch back to normal
mode after some time.
2.2 TWIN emission measurement
Prepare and perform emissions measurement
1. The pellet burner must be switched on with the On/
Off switch. In the boiler overview, press
the [Measurement] button in order to open the
emissions measurement settings window.
Fig. 2-4: Settings window for emission measurement
2. Use the [Begin measurement] button to enter
the date agreed for chimney sweeping. The pellet
burner will then start in time to reach the
permissible operating temperature for
measurement purposes. By pressing the [Start
now] button, the boiler will immediately begin
preparations for a subsequent measurement.
In addition, the locking time of the boiler can be
adjusted ( [Lock duration] button). This relates
to the set time of the measurement. During this
period no heating operation will be started, so that
the heating system has time to cool down.
Example: If a time of 17:00 is set for the emission
measurement and at [Lock duration] 8 h, heating
will end at 09:00 .
3. If the date has been entered, it will appear in the
boiler overview. The boiler will then start in time to
reach the permissible operating temperature for
measurement purposes.
Fig. 2-5: Set date
4. If the boiler is ready for emissions measurement, a
corresponding message will appear on the screen.
In addition, a countdown for the emissions
10 www.eta.co.at
TWIN emission measurement Emission measurement
measurement will be displayed. The emission
measurement is to be carried out during this
period.
Fig. 2-6: Countdown
No doors on the log boiler may be opened
during the emission measurement. Also, do
not stoke the fire in the log boiler.
5. Switch the boiler back to normal mode after the
emission measurement. To do this, press the
[Deactivate measurement] button in the
settings window. If you do not press this button, the
boiler will automatically switch back to normal
mode after some time.
Boiler functionality
11
3 Boiler functionality
1 Pellet suction hose DN50
2 Pellet back air DN50
3 Aspirator for pellet transport
4 Automatic turbulator cleaning
5 Stainless steel combustion chamber
6 Burn-through opening between the pellet burner
and the log boiler's combustion chamber
7 movable, self-cleaning rotating grate
8 detachable ash box
9 Ash screw
10 Stoker screw
11 Rotary valve
12 Metering screw
13 Pellet bin
An aspirator sucks the pellets from the storage room,
which may be up to 20 m away, into the pellet bin on
the boiler. This pel let bin has a cap acity of up to 60 kg.
The metering screw doses the pellets as they are
conveyed from the pellet bin, to avoid overfilling the
rotary valve. This way, pellets do not need to be cut.
This protects the sealing edges and enables quiet
operation. The rotary valve separates the pellet bin
from the combustion chamber to prevent back burning
in the pellet bin. The stoker screw pushes the pellets
into the pellet burner's combustion chamber.
The pellets are burned on the movable rotating grate.
Automated cleaning takes place during breaks in
combustion. The grate is rotated against a comb to
clean the air gaps. For a restart, the p ellets are ignited
with a ceramic igniter. Beneath the grate and the heat
exchanger, the ash screws convey the ash to a
detachable ash box.
After the stainless steel combustion chamber, the
wood gas flame can burn out unhindered through the
burn-through opening in the log boiler's combustion
chamber. The heat is transferred from the cleanly
burned combustion gases to the boiler water in the
heat exchanger.
Automatic actuation of the turbulators also cleans the
log boiler's heat exchangers.
12 www.eta.co.at
Automatic operation
4 Automatic operation
Automatic operation with the pellet burner
If the buffer is empty and the log boiler is not deliverin g
any more heat, a green LED on the digital roo m sensor
(optional accessory) indicates that fuel replenishment
is needed. If no additional logs are added within the
selected time (factory setting 10 minutes, see 9.3.2.1
"Start lag" for adjustment) the pellet burner will start au-
tomatically and take care of heating. Therefore, it is not
necessary to manually switch between log and pellet
modes.
If the insulating door of the log boiler stays open
longer than 1 minute, the ETAtouch control
system will automatically switch the pellet burner off on
the assumption that the log boiler will be started.
When the insulation door is opened, the draught fan
starts and a message appears on the display.
However, if no logs are added and ignited, the draught
fan will switch back off after 30 minutes. Then the
ETAtouch control system will restart the pellet burner
as needed.
If no logs are added, the log boiler can also be
switched off in its function block with th e
switch after the log boiler's insulation door has been
closed. The waiting period of 30 minutes will then be
skipped and the control system can start the pellet
burner immediately.
Only add wood if the log boiler will immediately
take over heating operations.
WARNING!
Wood may only be added to the log boiler if it will
then be heated up, i.e. take over heating
operations.
Otherwise, if the pellet burner is switched on, there is
a risk that it will switch on when there is a request from
the buffer. The flames cause the wood to release gas.
This gas will not be fully combusted and can lead to tar
build-up in the boiler and explosions.
Buffer switch on/off temperatures
In the buffer's function block you can set a minimum
temperature for the upper buffer section (=[Buffer top
min.], see 9.4.4.1 "
Buffer top min.") which the buffer
storage tank will maintain. There is also a switch-off
temperature (=[Buffer bottom off], see 9. 4.4.2 "
Buffer
bottom off") which specifies when the boiler stops
charging the buffer.
The buffer's adjustable charging times (see 9.4.1
"Setting the buffer charging times") define when the
buffer can request heat from the boiler. If the log boiler
does not supply this heat, the pellet burner will be
started.
In other words, if temperature [Buffer top min.] or
function [Full buffer charge with pellets] are set to
[Yes], the buffer will be kept at temperature continually
and the charging status will be correspondingly high.
Therefore, for heating mode with the log boiler,
the charging status of the buff er must be checked
before heating up. The addition of too much wood
must be avoided to prevent overhea ting. The correct
amount of wood is indicated in table 7 "
Correct quantity
of wood".
Safety General information
13
5 Safety
5.1 General information
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 documentation 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.
Keep fire extinguishers in a clearly visible location
In Austria, the minimum requirement is an ABC
powder extinguisher with 6 kg. An AB foam extinguisher with 9 litres, which produces less damage when
used, is preferable. The fire extinguisher should be
kept outside the boiler room, visible and easily
accessible.
In Germany and Switzerland, fire extinguishers are not
required for heating systems in private residences. In
spite of this, we recommend having one in the house.
Storage of ash
The ash must be kept in non-flammable containers
with covers. Do not put hot ash in the waste bin due to
risk of fire.
5.2 Safety devices
Pump safety run, automatic heat dissipation at
overtemperature
If the boiler temperature exceeds 87 °C (factory
setting) for any reason, the pump safety run will start.
All heating pumps and boiler pumps that are
connected to the boiler control system are switched on
to dissipate heat from the boiler.
This action prevents the boiler temperature from risin g
further and triggering further safety devices such as
the safety temperature limiter and the thermal relief
valve.
Heat dissipation is limited by the selected
maximum flow temperature in the heating circuits
and the target hot water temperature.
Boiler overheating
If a boiler temperature of 90°C is reached, the control
system switches the draught fan off and a warning
message appears on the display.
Reasons for a boiler temperature increase include:
• too much wood in the fuel chamber
• heating circuits unexpectedly switched off
• heating pump failed
• heating line inadvertently shut off
Once the boiler temperature has fallen below
86°C, heating resumes automatically.
During such emergency shutdowns the wood
continues to emit gas and the unburned wood
gas causes tar deposits in the boiler and chimney.
Install thermal emergency cooling valve against
overheating
The safety heat exchanger built into the boiler must be
connected by the heating technician to the house's
cold water supply via a thermal relief valve (opening
temperature 97 °C) to protect the boiler against
overheating if the pump fails. The minimum pressure in
the cold water pipe must be 2 bar.
Fig. 5-1: Thermal emergency cooling valve
1 Cold water connection
2 Isolating valve; remove hand wheel
3 Strainer
4 Thermal emergency cooling valve
5 Visible outlet to sewer
The cold water supply must be connected to the upper
connector of the safety heat exchanger; the lower
connector serves as an outlet to the sewer. T o pre vent
the supply line from being shut off accidentally, remove
the levers from shut-off valves or th e hand wheels from
valves and hang them there with a piece of wire.
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Safety devices Safety
The discharge must have an easily visible flow path so
malfunctions can be recognised. Direct the discharged
water to the sewer via a siphon funnel or at least with
a pipe into the ground so that nobody can be scalded
if the valve is activated.
Even for cold water coming from a domestic well with
its own pump, a thermal emergency cooling valve mu st
be installed on the boiler. With a generously
dimensioned air vessel, enough water for cooling will
come even if there is a power fa ilure. If the electricity
supply is very uncertain, a dedicated air vessel for the
thermal emergency cooling valve is required.
Safety shutdown by safety temperature limiter
For additional safety against boiler overheating, a
safety temperature limiter is built into the boiler. When
a boiler temperature of 105°C (tolerance 100 to 106°C)
is reached, it blocks the draught fan so that it can no
longer be switched on. When the boiler temperature
decreases below 70°C again, the safety temperature
limiter can be manually released for a restart of the
boiler.
Install safety valve against overpressure
A safety valve with 3 bar opening pressure must be
installed on the boiler. No shut-off valve may be
installed between the boiler and the safety valve. If
solar or other heat sources provide energy to the buf fer
storage tank via a heat exchanger, a safety valve (3
bar maximum) is also required on the buffer storage
tank.
Fig. 5-2: Safety valve
Normally an expansion tank that is too small or
defective, or blocked heating lines, are the cause for
activation of the safety valve. The safety valve should
be
installed at the highest point of the heat producer or i
n the flow pipe close to the heat producer.
DANGER!
Safety valve outlet
The safety valve outlet must be directed to the ground
in a pipe so nobody is endangered by hot water or
steam.
The safety valve outlet must be directed to the
sewer via a clearly visible, open route (siphon
funnel), so that malfunctions, especially a failure of
the safety valve to close, can be detected. If no
sewer connection is available, the outlet must be
directed to the ground in a pipe.
Suitable fuels
15
6 Suitable fuels
Suitable fuel
The firewood must be air-dry, i.e. it must have dried for
at least one year and have a water content unde r 20%.
We recommend using half-metre split logs with an
average diameter of 10 cm.
Do not split round logs with a diameter under 8 cm;
instead place them between the split logs in the
middle.
Boards may only be added between the logs and in no
case should they be included in the first layer as they
would block the burn-through opening in the gra te .
Small pieces of fuel may only be burned as a minor
addition placed among the split logs, but never in the
bottom layer. The smaller the pieces, the less of them
may be added.
Wood briquettes measuring 6 cm to 10 cm in diameter
in compliance with ISO 17225-3:2014.
Only 1 oversized split log or 1 stump piece can be
placed in the top layer, but no more. Complete
burning may require 2 combustion phases.
Unsuitable fuel
Wet fuel with a moisture content in excess of 20% may
not be burned as it results in condensation which can
lead to corrosion of the boiler's fuel chamber walls.
The following also may not be burned: rubbish, paper
and cardboard (only for start-up), wood dust from
sanding, sawdust, pieces of wood smaller than thumbsized, coal and coke, and fuels generally prohibited by
local air quality regulations, such as old railway
sleepers, plastic-coated plywood, impregnated wood,
etc.
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Correct quantity of wood
7 Correct quantity of wood
When not much heating is needed only place a
small amount of wood in the boiler
Absorbing all the heat from a boiler fully loaded with
wood would require buffer storage tanks larger than
needed for winter operation and also la rger than those
normally installed.
When less heat is required, i.e. for hot water in the
summer, or during the evening shortly before the night
set-back, only load the boiler with the amount of wood
actually needed.
The table below displays the amount of wood n eeded
for summer operation for different boiler sizes (= fuel
chamber capacity), wood type, buffer volume and
buffer charging status. Bear in mind that a "buffer top"
temperature sensor that is installed too low reduces
the usable volume.
If the living space already needs some heating, start
with the amount of wood indicated in the table below.
To establish the correct amount, approach the fully
charged buffer state slowly, adding one or two more
logs every heating cycle. If too much wood is loaded,
an emergency shutdown of the boiler will occur. If the
boiler overheats, the flow of air is stopped. The fire will
go out, but the hot wood will continue to smoulder for a
while and the unburned wood gas resulting from the
lack of air can create tar deposits in the boiler and flue.
If this occurs often, the boiler's heat exchanger will
become clogged with tar.
Observe the energy density of the fuel. The
energy content of 50 litres of wood briquettes
corresponds to 100 litres of beech wood or 150 litres of
spruce.
The current buffer charging status is displayed in
the control system in the boiler and buffer
overviews. It is shown in percent and is the average of
the three buffer temperatures (top, middle, bottom)
between 30°C (=0%) and 80°C (=100%).
SH20 / SH30 Buffer charging status SH40 / SH50 / SH60
Maximum fuel load Size of buffer storage tank (litres) Maximum fuel load
Briquette
s
Beech Spruce 3300 2200 1650 1100
Briquette
s
Beech Spruce
90% 85% 80% 70%
85% 78% 70% 55%
1/4 80% 70% 60% 40%
1/4 75% 63% 50% 25% 1/4
70% 55% 40% 10%
1/2 65% 48% 30% 0%
60% 40% 20% 1/8 1/4
55% 33% 10%
1/4 1/2 3/4 50% 25% 0% 1/2
45% 18%
40% 10%
4/4 35% 0%
30%
3/4 25% 1/4 1/2 3/4
20%
15%
10%
5%
1/2 4/4 0% 4/4
Start-up
17
8 Start-up
Check heating system's water 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 bar.
If the water pressure is too low, fill the cold heating
system to approx. 2 bar. Do not fill to a higher
pressure, as water expands with increasing
temperature and the water pressure also rise s when
the boiler is heating. The safety valve triggers at
approx. 2.8 bar.
Open heating lines
If the system is new or has been out of operation for
some time, verify whether the return riser mixing valve
is in the "AUTO" position and all shut-off valves in the
heating lines are open.
Always keep ball valves completely open to avoid
ruining the seals. Open valves by turning anticlockwise, and then turn back 1/4 turn from the fully
open position to relieve pressure on the valve stem.
Check buffer charging status
Before starting the boiler, check the current buffer
charging status to avoid adding too much wood.
The table on page 16
shows how much wood should
be added. The buffer charging status is shown in the
boiler overview.
Pay particular attention to the different energy
densities of the fuels and the lower heat
consumption in summer.
Open insulation door, draught fan starts automatically
When the insulating door is opened, the draught fan
starts automatically and the switch changes to the
setting. The operating condition changes
from [Ready] to [Insulation door open]. The open
insulation door is shown on the display.
If the draught fan does not start, there is either a
fault or an alarm. Therefore check the messages
on the screen.
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Start-up
Open fuel chamber door
The draught fan must be running before the fuel
chamber door is opened so that any combustion gas
can be extracted from the fuel chamber.
1 Fuel chamber door
2 Ignition door
3 Combustion chamber door
If the boiler has not safely cooled, no boiler doors
may be opened without an operating draught fan.
A sudden inflow of air in the presence of smouldering
wood may result in an explosion.
The fuel chamber door is always closed during
both start-up and heating operation. It is opened
only when ash is removed from the boiler.
Check fuel chamber
Use the poker to distribute ashes and charcoal evenly
throughout the fuel chamber. In the panels, the two
upper openings for primary air must be free.
Also, the 3 burn-through openings in the grate must
stay open so that the fire reaches the combustion
chamber during ignition.
Place logs close together in fuel chamber
Add the required amount of closely spaced logs to the
fuel chamber. Stack the logs instead of throwing them
in at random. Always place the first layer of logs
lengthwise.
1 Half-metre logs
2 33 cm logs
Adjust log over burn-through opening
Lift the bottom log above the burn-through opening
with the poker and place pieces of charcoal (from the
fuel chamber) or small pieces of wood under it so that
the burn-through openings in the grate remain clear . To
Start-up
19
make ignition easier, ne xt to the log on the left and right
there should be a small gap separating it from the
neighbouring logs.
Place only one oversized log on top
Only one oversized split log or one stump piece can be
placed in the top layers, but no more. Two combustion
phases may be needed for complete burning.
Brushwood, coarse wood chips, unsplit logs and
untreated wood waste should be added only as a
secondary fuel among the split logs
First place half of the required amount of logs in the
fuel chamber (at least 3 layers). Then alternately add
the secondary fuel (brushwood, coarse wood chips,
round logs, wood waste) and additional logs.
The smaller the pieces of secondary fuel are, the
more logs must be added between them.
Under no circumstances should secondary fuel
(brushwood, coarse wood chips, round logs,
wood waste) be used for the bottom layer. Such fine
material burns too quickly, resulting in incomplete
combustion in the combustion chamber, which is still
cold during start-up. As a result, tar can build up in the
heat exchanger.
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Start-up
Close fuel chamber door, open ignition door
Close the fuel chamber door and then open the ignition
door.
If the boiler will not be started up yet, close both
doors and, in the boiler overview, switch off the
boiler using the switch.
Ignite fire with cardboard and newspaper
Place crumpled paper or a few pieces of cardboard in
front of the first layer of wood and ignite it. Th e draught
fan sucks the flame over the tightly stacked logs,
causing them to ignite more quickly . For heavy , smooth
hardwood, larger pieces of kindling may be needed for
ignition.
CAUTION!
Never use petrol, turpentine o r si milar materia ls as an
"ignition aid": risk of explosion!
The ignition door should be kept open after
ignition to monitor the progress of the fire. It
should only be closed once the boiler's exhaust
temperature has reached 100 °C.
How long it takes the fire to start depends on the type
of wood used; rough spruce may need only 2minutes,
smooth beech may require 5 minutes until the exhaust
gas temperature reaches 100°C.
At 100°C exhaust temperature, close ignition door
and insulating door
Once a few logs are burning well and the exhaust
temperature is over 100°C, close the ignition door and
the insulating door.
Fig. 8-1: Close ignition door
Start-up
21
Fig. 8-2: Close insulation door
The exhaust temperature is displayed in the boiler
overview. At over 100°C, an arrow appears to indicate
that the ignition door should be closed.
When the insulating door is closed, the boiler automatically switches to [Ignition] mode and, once the
residual oxygen content is below 15%, to [Heating]
mode. The boiler is now in heating mode and regulates
the combustion of the wood independently.
Avoid opening boiler doors unnecessarily
Avoid opening the insulating door and the fuel
chamber door unnecessarily in [Heating] status. That
disrupts the boiler control and increases fuel consumption. Also keep the ignition door and the combustion
chamber door closed.
CAUTION!
Never open the insulating door and the fuel
chamber door when the boiler is in [Calibrating
lambda probe] or [Overtemperature] status.
Completion of heating mode with ember burnout
Once the wood in the boiler has been burned (residu al
oxygen content above 15% for more than 5 minutes) o r
the exhaust temperature falls below 80 °C, the boiler
automatically starts the ember burnout ([Ember
burnout] status).
If the [Ember burnout] button was not
pressed, the boiler will flush the secondary air
ducts with air in order to free them of dust. Charcoal
and embers remain in the boiler by design so that
newly added wood can be ignited more easily.
Complete ember burnout for cleaning
To clean after the final heating operation, press the
[Ember burnout] button in the log boiler overview
(the button will then turn yellow ). Ember retention is
then deactivated and the boiler performs a complete
ember burnout (duration approx. 1 hour). burning most
of the charcoal in the fuel chamber to make
subsequent cleaning of the boiler easier.
Adding fuel
You should only add fuel when the buffer
charging status is below 30% and the fuel
chamber has burned to empty.
If wood has been added and there are still embers in
the boiler, it automatically tries to ignite the wood
again. If the wood is hard to ignite and there are only a
few remaining embers, it may help to push the
charcoal together in the middle before refilling. If the
remaining embers do not ignite the wood, light it with
paper and cardboard through the ignition door.
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Getting to know the control system ETAtouch controller
9 ETAtouch controller
9.1 Getting to know the control
system
Get to know the control system
Take your time and read the following chapter
carefully. It describes the functions and settings of the
ETAtouch control for your heating system. If you are
familiar with these, it will be easier for you to make adjustements, even without consulting the manual.
Design of the control system
The individual components of the heating system, e.g.
buffer, hot water tank or heating circuit are shown in
the control system as "function blocks". These are
listed in the uppermost row on the screen. The
respective user interface is opened with a single tap of
the finger.
Fig. 9-1: ETAtouch control system function blocks
1 Currently selected function block
2 Other function blocks, e.g. hot water tank, heating
circuit, solar heating system
3 Scroll to other function blocks (displayed if not all
function blocks can be displayed simultaneously)
4 Help button. Details can be found in chapter 9.1.3
"Integrated help".
5 Settings of the selected function block
6 Date and time
7 Current outside temperature
8 Status of the remote control for the boiler (via
www.meinETA.at), see chapter 9.1.7 "
meinETA
remote control"
9 System configuration
ETAtouch controller Getting to know the control system
23
Several views are available for each function block. To
switch between these, tap on the symbol at
the top left. The selection of views appears.
Fig. 9-2: Selection of views
1 User interface
2Text menu
3 Inputs and outputs menu
4 Messages menu
In the user interface, you can set the most
important and common settings. For example,
adjustment of the charging times, heating
times, room temperatures and operating modes are
contained in this list. Details can be found in chapter
9.1.1 "
User interface".
The parameters of a function block are
displayed in the text menu and can be
adjusted,if necessary, see chapter 9.1.2 "
Text
menu".
The terminal assignment of individual
components, such as temperature sensors,
pumps and mixers, are visible within the input
and output menu, where they can be changed if
required. Also, for example, pump s an d mixers can b e
started in manual mode. This menu is intended for
specialists only. Details can be found in chapter 9.1.5
"Inputs and outputs".
Any hints, errors or faults are displayed in the
messages menu, see chapter 9.1.4
"Messages".
9.1.1 User interface
The user interface
The user interface is always displayed by default. If
you are in a different view, switch to the user view by
tapping the symbol (upper left) and then
selecting .
In the user interface, you can set the most important
and common settings. The display is dependent on the
selected function block. The illustrated example shows
the user interface of a heating circuit with a room
sensor.
Fig. 9-3: Heating circuit user interface
1 Operating condition and information
2 Producer for the heating circuit.
Currently , the buffe r provides a flow temperature of
65 °C to the heating circuit.
3 On/Off switch for the heating circuit
= switched on
= switched off
4 Increase or decrease the room temperature
5 Function block settings.
In this menu, the settings and functions most
commonly used can be stored. For the heating
circuit, for example, the heating times and the
heating curve are adjusted here.
6 Graphic display of the heating times and room tem-
peratures settings
7 Different operating modes of the heating circuit
24 www.eta.co.at
Getting to know the control system ETAtouch controller
9.1.2 Text menu
Adjust parameters in the text menu
To enter the text menu, tap in the upper left on the
symbol, followed by . In the text menu, the
required parameters for the control system of the
function block are listed. Modifiable parameters are
indicated by the symbol.
Fig. 9-4: Text menu
1 Parameter
2 Current value or setting
3 Editable parameter
Changing a parameter is simple. Select this and tap
the symbol. The settings window appears.
Fig. 9-5: Settings window
1 Factory setting and adjustment range
2 Reset to factory setting
3 Save and close
4 Cancel and close
The default setting and the setting range are displayed
on the right side. The new value is entered with the
keypad, and stored by pressing the [Save] button.
Resetting to factory settings is done by pressing the
[Factory settings] button. To cancel and close the
window, tap the arrow on the left side of the screen.
Only modify parameters whose function you're
familiar with. Before making any changes, read
the relevant section of the user manual or configuration manual, or open the integrated help feature. If yo u
cannot find sufficient information about a parameter,
please consult a specialist.
Commonly used parameters can be found in the
settings
Commonly used parameters can be found in the
function block settings ( button). There, the
parameters are identified by the symbol and can be
adjusted by tapping. This saves you having to search
through the text menu for these parameters.
9.1.3 Integrated help
How to use the integrated help
Use the integrated help to find information. This
appears when the button is pressed. If help is
activated, annotations will appear in the user interface
in blue boxes.
Fig. 9-6: Activated help in the user interface
ETAtouch controller Getting to know the control system
25
Fields with additional line symbols on the right
side (example: ) indicate that further
information is available. Tap on the appropriate field
and a window with the description will open. Close the
window using the arrow on the left side.
Fig. 9-7: Description
The help function can also be accessed via the text
menu. A detailed description is available for all the
parameters displayed in blue writing. Just tap on a
parameter and a window will open with the description.
Fig. 9-8: Activate help in the text menu
To disable help, press the button again.
9.1.4 M essages
An error message appears
If an error occurs, a symbol of the type of error appears
in the corresponding function block. This symbol is
also displayed at the bottom of the screen.
Fig. 9-9: Symbols when an error occurs
Types of errors and their meaning
• Notification
A notification does not interrupt operation, and
therefore no acknowledgement is requir ed. Notifications inform the user, for example, that pump
anti-blocking protection has been activated.
• Warning
A warning is displayed on failure of a function
which is not absolutely essential for continued
operation. It can be acknowledged before the
cause of failure is remedied. However, it will
continue to be displayed until the cause has
actually been dealt with.
• Malfunction or alarm
An error or alarm stops operation. Some of these
can be acknowledged before the cause of the
problem is remedied. However, they will continue
to be displayed until the cause has actually been
dealt with. Other errors and alarms can only be acknowledged after the cause has successfully been
remedied. Once an error or alarm has been
resolved and acknowledged, you must restart the
boiler or the affected function block.
26 www.eta.co.at
Getting to know the control system ETAtouch controller
If the error symbol at the bottom of the screen is
tapped, a window appears. In this, the function b lock in
which the error occurred will be displayed.
Fig. 9-10: Display of the function blocks in which the error
occurred
If the function block is selected, the view changes to
the messages menu. By tapping the error, the error
description is displayed.
Fig. 9-11: Error description
To acknowledge, press the [Acknowledge] button.
Depending on the nature of the fault, this either
remains visible or disappears.
You can also switch to the messages menu to
display any errors. Just tap on the
symbol and then select .
9.1.5 Inputs and outputs
See terminal assignment of individual
components
The terminal assignments of the individual
components of the selected function block are
displayed in the inputs and outputs menu, e.g. pumps,
temperature sensors, and mixers.
When authorization is given, the terminal
assignment can be changed. Also, manual mode
for, e.g. a pump or a mixer, is possible.
Below is an example of the function block of the
heating circuit. To view the terminal assignment, first
select the heating circuit. To access the inputs and
outputs menu, tap on the symbol, followed by
. An overview screen opens.
Fig. 9-12: Overview
Details of a component, such as the current situation
or the operating state, are displayed when the
symbol is tapped. Try this with the heating circuit
mixing valve. A settings window appears.
Fig. 9-13: Settings window
With the appropriate authorization, the heating
circuit mixing valve can be manually put into
operation in the settings window using the [Forward],
[Back] and [Stop] buttons. However, this is primarily
intended for specialists.
Close the settings window using the arrow on the left
side.
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