eta HACK 20, HACK 25, HACK 50, HACK 70, HACK 90 Operation
...
2017-01-30
EN
0000000294
V.003
2.38.0
3005, 3106
93526-001
Wood chip boiler
20 - 90 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 Boiler functionality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Changing the fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Slag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Empty the ash box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6 ETAtouch controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1 Getting to know the control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1.1 User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1.2 Text menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1.3 Integrated help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1.4 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1.5 Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.1.6 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.1.7 meinETA remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.2 [Boiler] function block – HACK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.2.1 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.2.2 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.3 [Buffer] function block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.3.1 Setting the buffer charging times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.3.2 Buffer with solar heating system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.3.3 Buffer as a combination tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.3.4 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.4 [Hot water tank] function block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.4.1 Setting the hot water charging times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.4.2 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.5 [Fresh water module] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.5.1 Setting the hot water charging times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.5.2 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.6 [Heating circuit] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6.6.1 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.6.2 Setting the heating time slots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.6.3 The heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.6.4 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
6.7 [Solar] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6.7.1 Solar heating system with one tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6.7.2 Solar heating system with 2 tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
6.7.3 Solar heating system for buffer with 2 internal coils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
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6.7.4 Solar heating system with external heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.7.5 Solar heating system with external heat exchanger and stratified charging valve. . . . . . . . . . 65
6.7.6 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.8 [Aux.boiler] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
6.8.1 Setting the charging times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
6.8.2 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
6.9 [External heat demand] function block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
6.9.1 Setting the charging times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6.9.2 Text menu - Adjustable parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6.10 [Heating pipeline] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.11 Function block [special conveyor] and [external conveyor] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6.11.1 Intermediate conveyor screw. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6.11.2 Double agitator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6.12 [Agitator] function block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
7 Filling the storage room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8 Rectifying problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
9 Information on fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
9.1 Suitable fuels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
9.2 Moist fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.3 Drying and chopping wood chips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
9.4 Water content. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
9.5 Judging the quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
9.6 Other fuels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
9.7 Heating value. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
10 Emission measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
11 Low-emission operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
12 Heating water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
12.1 Water hardness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
12.2 Refilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
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 through it.
Warranty and guarantee
You should also read the "Conditions for warranty,
guarantee, liability" (see 1.3 "
Warranty , gua rantee 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.
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 compa ny or by our
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 operate 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 ca ble i s req uired for the co nnectio n
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 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 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
Possible effects
• Measures for avoiding the danger
Types of safety instruction
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Warranty, guarantee and liability General
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 fuels
• Wood chips according EN ISO 17225-4:2014,
quality classes A1/A2/B1/B2, size P16S-P31S,
maximum water content 35% (M35)
• Wood pellets according EN ISO 17225-2:2014,
quality class A1, ENplus-A1
• Shavings and swarf briquets according EN
ISO 17225-3:2014, quality classes A1/A2/B
• Miscanthus-wood chips according
ÖNORM C 4000 and C 4001
• In germany: fuel classes 4/5a according
1. BImSchV. Use fuel classes 5/6/7/8 only after
consultation with company ETA.
Operation with unsuitable fuels, in particular high-
slag pellets from grain waste, for example, or
corrosive fuels such as miscanthus fertilised with
potassium chloride, is prohibited.
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 agents, adhesives and propellants, 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 12
"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.
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.
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.
General Warranty, guarantee and liability
7
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 common standardised
parts such as electrical fuses or fastening materials, as
long as they possess the required features and do not
restrict the functionality 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: Temp erature monitoring
and control devices, safety temperature limiters, safety
valves and thermal discharge valves.
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Boiler functionality
2 Boiler functionality
1 Agitator plate
2 Clutch
3 Flat springs
4 Discharge screw
5 Rotary valve
6 Stoker screw
7 Combustion chamber
8 Actuator for primary air
9 Actuator for secondary air
10 Downdraught channel
11 Heat exchanger with turbulators
12 Draught fan
13 Ash screw under tilting grate
14 Heat exchanger ash screw
15 Ash box
Spring arms adjust to load
The wood chips are transported to the discharge screw
by the floor agitator. The spring arms adjust
themselves to the load above them. If the storage
room is full, the floor agitator is subjected to a heavy
load and the spring arms are pressed against the
agitator plate, reducing the force needed to turn the
agitator and thus the electricity consumption. As the
storage room empties, the spring arms extend toward
the wall and clear out the bunker.
Floor agitator must turn during filling
To prevent the spring arms from being stuck in an
extended position under the pile of wood chips, the
floor agitator must be turning during filling. Details can
be found in chapter 7 "
Filling the storage room".
Discharge screw torque control
The power consumption of the motors is monitored so
that any sluggishness in the conveyor screws is
registered immediately. This triggers the screws to run
briefly in reverse, up to three times if necessary. The
floor agitator is simultaneously decoupled via the
Boiler functionality
9
clutch so the motor's power is exclusively available for
unblocking the screw . Jammed pieces of wood or even
stones can be easily loosened this way so fuel
transport can resume.
Maximum protection against burn-back
The airtight one-chamber rotary valve keeps the
combustion chamber safely separated from the fuel
deposit in all operating modes. No hot gas can enter
the fuel conveying system and ignition of the wood
chips is impossible. This is the most reliable burn-back
protection possible. Individual pieces of wood that are
too long cannot bring the fuel conveying system to a
halt. They are cut off by a hardened bl ade on the edg e
of the rotary valve chamber.
Optimised ignition
After short breaks in combustion, the refractory-lined
combustion chamber remains hot enough that any
new fuel which is fed in can be ignited by the remaining
embers. The ignition fan only needs to be activated
after long periods without combustion. To save electricity, the ignition fan is deactivated immediately after
successful ignition, which is recognised by the lambda
probe and exhaust temperature.
Hot combustion chamber with tilting grate
The wood chips are pushed onto the side of the grate
by the stoker screw. A refractory-lined combustion
chamber ensures a clean fire with high burnout temperature. At intervals that depend on the output level,
the grate is tilted by 90° after a controlled ember
burnout in order to automatically remove ash and
foreign bodies from the combustion chamber. Until the
next time the grate is tipped, the ash remains under the
grate and can burn out before it is transported by the
ash screw to the detachable ash box.
Combustion breaks with minimal heat loss
The fire can be regulated between minimum and
maximum output. In autumn and spring, when heating
loads are smaller, the ou tput is re gu lated by pau ses in
combustion. To avoid a build-up of smouldering tar in
the boiler and chimney during these pauses, the fire
undergoes a controlled burnout. Closing the primary
and secondary air flaps ensures that no air can flow
through the boiler in standby, thus preventing unused
heat from being drawn into the flue.
Optimum fuel efficiency with lambda control
Gasification of the wood (output) can be controlled via
the flow of primary air. Through use of the lambdacontrolled secondary air , combustion is ke pt clean and
highly efficient.
A lack of air means there is not enough oxygen for
complete combustion. On the other hand, too much air
also results in incomplete combustion as it cools the
fire. Below 700°C, not all of the wood gas is burned.
Excessive air also draws too much heat out of the
boiler unused. The lambda probe ensures optimum
combustion and maximum fuel utilisation in everyday
operation.
Turbulent heat exchanger with cleaning
After complete combustion, the hot gas flows into the
cold section of the boiler, where it transfers its heat to
the boiler water. First it flows smoothly through a
downdraft channel for ash sedimentation and then
turbulently through the heat exchanger tubes, which
are equipped with turbulators. The more turbulent the
flow, the more the gas comes into contact with the tube
walls, thus ensuring maximum transfer of heat to the
boiler water. This ensures low exhaust temperatures
and high efficiency.
During cleaning (grate tipping) the turbulators are also
moved to scrape the flue ash from the heat exchanger
tubes. The ash is transported to the ash box by an ash
screw.
Underpressure for maximum safety
A draught fan at the boiler outlet causes underpressure throughout the boiler, thus ensuring high
operational safety without risk of deflagration and
burn-back. The airtight one-chamber rotary valve
makes the usual combustion air fan unnecessary. The
required air is drawn into the combustion chamber
through the regulated primary and secondary air flaps
as a result of the underpressure within the boiler.
10 www.eta.co.at
General information Safety
3 Safety
3.1 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 children away from the fuel store and
storeroom
In fuel stores for wood chips, in particular, there is a
danger that a hollow space may form above the
agitator. Children playing on the pile of wood chips, or
careless adults, could fall in and ge t buried or caught
up in the discharge screw.
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 extingu isher sho uld
be kept outside the boiler room, visible and easily
accessible.
Fig. 3-1: Fire extinguisher
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 for cooling. Never put hot ash into the
waste bin!
3.2 Safety devices
Pump safety run, automatic heat dissipation at
overtemperature
If the boiler temperature exceeds 90°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 rising
further and triggering further safety devices such as
the safety temperature limiter and the thermal relief
valve.
The heat dissipation is limited by the maximum
flow temperature set in the heating circuits and
the target hot water temperature.
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
Safety Safety devices
11
overheating if the pump fails. The minimum pressure in
the cold water pipe must be 2 bar and the temperature
must not exceed 15 °C.
Fig. 3-2: Thermal emergency cooling valve
1 Cold water connection
2 Isolating valve; remove hand wheel
3Strainer
4 Thermal emergency cooling valve
5 Visible outlet to sewer
The cold water supply must be connected to the up per
connector of the safety heat exchanger; the lower
connector serves as an outlet to the sewer . To prevent
the supply line from being shut off accidentally , remove
the levers from ball valves or the hand wheels from
valves and hang them there with a piece of wire.
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 must
be installed on the boiler. With a generously
dimensioned air vessel, enough water for cooling will
come even if there is a power failure. 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, the power supply to the draught fan and the
fuel intake is interrupted. If 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 . Every heat producer in a h eating
system must be protected by at least one safety valve
against pressure exceeding the maximum operating
pressure (see EN 12828). These valves must be
designed such as to ensure the maximum permitted
operating pressure that can arise in the heating system
or parts thereof. The safety valve must be situated in
the boiler room and be easily accessible.
Fig. 3-3: Safety valve
DANGER!
Do not install any shut-off valves, strainers or such like
between the boiler and the safety valve.
The connection size of the safety valve is de termined
on the basis of the heating system's maximum heating
capacity, as shown in the table.
Install the safety valve at the highest point of the heat
producer or in the flow pipe close to the heat producer .
Only in this way can it discharge heat by blowing out
hot water and steam.
The safety valve may be installed in any position, but
the upper part of the valve must not face downward.
The flow pipe may be 1 m long maximum and must be
routed in a straight line in the nominal diameter of the
valve inlet.
Valve size
a
Nominal diameter (DN)
a. The valve size is determined by the size of the inlet
connection.
Maximum heating
capacity (kW)
15 (G ½) 50
20 (G ¾) 100
25 (G 1) 200
32 (G 1 ¼) 300
40 (G 1 ½) 600
50 (G 2) 900
12 www.eta.co.at
Safety devices Safety
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 discharge (vent) pipe must have
at least the same nominal diameter as the valve
outlet, have a consistent downhill gradient and be
routed to a sewer connection. The vent pip e may
contain a maximum of 2 bends and be 2 m long. If
a length of more than 2 m is required, the next size
of pipe must be selected. More than 3 bends and
4 m of length are not pe rmitted. The mouth of the
vent pipe must allow easy inspection and be routed
such as to exclude any danger to persons. If the
vent pipe ends above a funnel, its discharge pipe
must have a diameter at least double that of the
valve inlet.
Changing the fuel
13
4 Changing the fuel
WARNING!
Switch off the electricity to the boiler via the mains
switch
Switch off the electricity to the boiler via the mains
switch. This prevents injuries caused by switching
the boiler on inadvertently.
Setting the firebed level sensor
The better the fuel, the smaller the amount needed on
the tilting grate. Therefore, when the fuel is changed,
the position of the firebed level sensor must also be
changed. The sensor is located behind the cover on
the front of the boiler.
The settings for the various fuels are provided
under 4.2 "
Settings".
Fig. 4-1: Firebed level sensor
To adjust the position, loosen the screw, turn the
firebed level sensor and fix it in place with the screw.
Enable flue gas recirculation for pellets and
miscanthus
For very dry fuels such as pellets, carpentry waste,
miscanthus or wood chips with water content under
15%, the optional flue gas recirculation is needed in
order to lower the combustion temperature.
Flue gas recirculation must be enabled for the
fuels mentioned above. This is done by removing
the shut-off plug.
To do so, remove the maintenance cover for the flue
gas recirculation by loosening the two wing nuts while
taking care not to damage the seal.
Fig. 4-2: Removing the maintenance cover
Enable flue gas recirculation by taking out the shut-off
plug and fastening it to the boiler so it cannot be lost.
Fig. 4-3: Shut-off plug
Inspect the seals on the maintenance cover and
the shut-off plug and replace them if necessary.
Replace the maintenance cover and tighten it evenly.
14 www.eta.co.at
Slag Changing the fuel
When using wood chips with less than 15% water
content, enable flue gas recirculation and
manually set [Flue gas recirculation] to [Yes] in the
control system; see 6.2.2.2 "
Flue gas recirculation".
For wood chips with more than 15% water content, flue
gas recirculation remains disabled.
Setting the fuel type in the control system
The control system provides a selection of different
fuels. For each one different values are stored for the
combustion and de-ashing. If the fuel is changed, the
new fuel must also be set in the control system. If the
water content and density are known, these
parameters must also be adjusted. Changing the fuel,
density and water content in the control system is
described in chapter 6.2.2.1 "
Fuel".
4.1 Slag
What is slag?
Slag is liquified ash of combusted fuel. Liquefaction
occurs when the combustion temperature in the boiler
reaches the ash melting point of the fuel.
Slag clogs the openings in the grate and prevents the
flow of air. As a result, the combustion temperature
increases, which further promotes the formation of
slag. This causes increased wear of the combustion
chamber, the grate, and its de-ashing parts as well as
faults and unnecessary additional maintenance
demands.
How does slag form?
The ash melting point of wood is approximately 1100
°C. The combustion temperature of the boiler (with
good quality wood chips) is approximately 900 °C.
Since the combustion temperature is lower than the
ash melting point of the fuel, no slag will form.
The ash melting point of miscanthus and
impurities like needles, leaves, soil, dirt, and
rotten fuel is approximately 800 °C. Therefore, a high
level of impurities will lead to the formation of slag.
Optional flue gas recirculation is one way to avoid
the formation of slag. Flue gas recirculation
directs a portion of the flue gas back into the
combustion chamber, reducing the combustion temperature. As a result, the ash melting point of the fuel
is no longer reached, greatly reducing the formation of
slag.
Causes of slag
The causes of slag can be divided into the following
categories:
Characteristics of the fuel
• Wood chips and miscanthus containing a high
level of ash, contaminants (soil, sand, stones), a
high proportion of bark or leaves and needles.
• Pellets and bark pellets that contain a high
proportion of ash.
Improper operation and maintenance of the boiler.
• Leaks in the boiler caused by improperly sealed
maintenance openings.
• Unsealed Lambda probe, defective seals on the
ash box, flue gas recirculation.
• Boiler and flue gas recirculation not regularly
cleaned, or flue gas recirculation does not work
due to high flue draught.
Incorrect control system settings
• Incorrect fuel settings
• De-ashing interval too long.
Generally speaking, the darker th e wood chips,
the higher the proportion of dirt that will cause
slag.
When the fuel causes slag
If pieces of slag are found in the ash box, then this is
usually caused by the fuel's ash content. Therefore,
the boiler must be de-ashed more often. This is done
by shortening the de-ashing interval; see page 34
.
An excessive flue draught can also cause slag by
reducing the effectiveness of the flue gas recirculation.
If the flue draught is over 15 Pa, a draught limiter is
required, or a nozzle on the chimney opening with
which higher exit velocities and better lift for the flue
gas are achieved.
Remedies for slag
If slag appears, the following measures can be used as
remedies:
• Shorten the de-ashing interval by 50%. See
chapter 6.2.2.3 "
Boiler de-ashing interval".
• Raise the residual oxygen content O
2
. See chapter
6.2.2.6 "
Increase O2 target value".
• Install flue gas recirculation on the boiler
• Check the position of the firebed level sensor. See
chapter 4.2 "
Settings".
In any case, the de-ashing interval must be
adjusted. As an additional measure, the residual
oxygen content can be briefly raised. However, if
would be preferable to change the fuel or to retrofit the
optional flue gas recirculation in order to sustainably
lower the combustion temperature.
Changing the fuel Settings
15
4.2 Settings
Changing the fuel
16
Adaptations for
HACK 20-50 kW
Fuel Pellets Wood chips Carpentry material Miscanthus
a
a. Reduced max. output: 35 kW
Water content < 15% < 15% 15 - 25% 25 - 35% < 15% < 20%
Ash/dust content low high low high low high low high low high low high
Software parameters [Fuel] [Pellets] [Woodchips] [Woodchips] [Miscanthus]
Firebed level sensor
Position 1 3 4 3 5
De-ashing interval (boiler with buffer storage tank)
Software parameters
[De-ash after min.] 35 kg 12 kg 25 kg 6 kg 25 kg 6 kg 25 kg 6 kg 12 kg 6 kg 1 kg 1 kg
[De-ash after max.] 60 kg 45 kg 50 kg 25 kg 50 kg 25 kg 50 kg 25 kg 50 kg 25 kg 10 kg 8 kg
De-ashing interval (boiler without buffer storage tank)
Software parameters
[De-ash after min.] 35 kg 25 kg 25 kg 12 kg 25 kg 12 kg 25 kg 20 kg 25 kg 12 kg 3 kg 3 kg
[De-ash after max.] 60 kg 45 kg 50 kg 25 kg 50 kg 25 kg 50 kg 25 kg 50 kg 25 kg 10 kg 8 kg
Boiler with flue gas recirculation installed
Software parameters [Flue gas recirculation] [Yes] [Yes]
[Yes]
(recom-
mended)
[Yes] [No] [Yes] [Yes]
Flue gas recirculation status Open Open
Open
(recom-
mended)
Open Closed Open Open
Boiler without flue gas recirculation
Software parameters [Flue gas recirculation] [No]
Changing the fuel
17
Adaptations for
HACK 63-90 kW
Fuel Pellets Wood chips Carpentry material Miscanthus
a
a. Reduced max. output: 65 kW
Water content < 15% < 15% 15 - 25% 25 - 35% < 15% < 20%
Ash/dust content low high low high low high low high low high low high
Software parameters [Fuel] [Pellets] [Woodchips] [Woodchips] [Miscanthus]
Firebed level sensor
Position 2 3 5 3 5
De-ashing interval (boiler with buffer storage tank)
Software parameters
[De-ash after min.] 80 kg 28 kg 35 kg 9 kg 35 kg 9 kg 35 kg 9 kg 17 kg 9 kg 2 kg 2 kg
[De-ash after max.] 120 kg 90 kg 65 kg 33 kg 65 kg 33 kg 65 kg 33 kg 65 kg 33 kg 15 kg 12 kg
De-ashing interval (boiler without buffer storage tank)
Software parameters
[De-ash after min.] 80 kg 57 kg 35 kg 18 kg 35 kg 18 kg 35 kg 28 kg 35 kg 18 kg 5 kg 5 kg
[De-ash after max.] 120 kg 90 kg 65 kg 33 kg 65 kg 33 kg 65 kg 33 kg 65 kg 33 kg 15 kg 12 kg
Boiler with flue gas recirculation installed
Software parameters [Flue gas recirculation] [Yes] [Yes]
[Yes]
(recom-
mended)
[Yes] [No] [Yes] [Yes]
Flue gas recirculation status Open Open
Open
(recom-
mended)
Open Closed Open Open
Boiler without flue gas recirculation
Software parameters [Flue gas recirculation] [No]
18 www.eta.co.at
Empty the ash box
5 Empty the ash box
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.
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. 5-1: Fastener
Remove the lid by opening the fastener s and empty
the ash box.
Fig. 5-2: 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.
Empty the ash box
19
Inspect the seal on the ash box lid to ensure it is in
good order, and replace it if necessary.
Fig. 5-3: Seal
Inspect the integrity of the ash box seals on the boiler,
replace them if necessary.
Fig. 5-4: Seal
Attaching the ash box to the boiler
Reattach the cover of the ash box and secure with the
fasteners. Push the ash box over the connection on
the boiler and attach it to the boiler with the fasteners.
Switching on the boiler
Switch the boiler back on with the On/Off
switch.
20 www.eta.co.at
Getting to know the control system ETAtouch controller
6 ETAtouch controller
6.1 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. 6-1: 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 6.1.3
"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 6.1.7 "
meinETA
remote control"
9 System configuration
ETAtouch controller Getting to know the control system
21
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. 6-2: Selection of views
1 User interface
2 Text 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
6.1.1 "
User interface".
The parameters of a function block are
displayed in the text menu and can be
adjusted,if necessary, see chapter 6.1.2 "
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, pumps and mixers can be
started in manual mode. This menu is intended for
specialists only. Details can be found in chapter 6.1.5
"Inputs and outputs".
Any hints, errors or faults are displayed in the
messages menu, see chapter 6.1.4
"Messages".
6.1.1 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. 6-3: 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
22 www.eta.co.at
Getting to know the control system ETAtouch controller
6.1.2 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. 6-4: 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. 6-5: 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.
6.1.3 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. 6-6: Activated help in the user interface
ETAtouch controller Getting to know the control system
23
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. 6-7: 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. 6-8: Activate help in the text menu
To disable help, press the button again.
6.1.4 Messages
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. 6-9: 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.
24 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 block in
which the error occurred will be displayed.
Fig. 6-10: 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. 6-11: 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 .
6.1.5 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. 6-12: Overview
Details of a component, such a s 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. 6-13: 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.
ETAtouch controller Getting to know the control system
25
6.1.6 Getting started
6.1.6.1 System settings
Open the system configuration
By tapping the symbol (in the lower left of the
screen), the system settings menu opens.
Fig. 6-14: Open the system configuration
In the system settings, among other things, the date
and time is set, the language of the control system is
set, and access to the remote "meinETA" system is
activated.
With corresponding authorisation, the software for the
ETAtouch control system is updated in this menu.
Fig. 6-15: System configuration menu
To close the system settings, simply tap the
symbol again.
6.1.6.2 Setting the language
Change the language using the ETAtouch control
system
The language used can be changed using the
ETAtouch control system For this, open the system
preferences and tap the [Language] symbol. A
settings window appears.
Fig. 6-16: Setting the language
Select the desired language. Following this, the
ETAtouch control system will appear in the chosen
language.
6.1.6.3 Setting the date and time
Setting the date and time
The date and time can be adjusted to the respective
time zone. The date and time are factory-set to Central
European Time (UTC+01:00). For setting on the
screen, tap the date or time. A settings window
appears.
Fig. 6-17: Date and time
26 www.eta.co.at
Getting to know the control system ETAtouch controller
Using the arrow keys, set the time. Tap on the date
field to open the calendar. Press the [Save] button to
save. Subsequently , the system settings ar e closed by
tapping the symbol.
6.1.6.4 Changing the names of function
blocks
Renaming function blocks
You can individually adapt the names of function
blocks to make them easier for you to recognise.
Be sure to keep the name short. This improves
the clarity of the screen.
To change a name, first open the desired function
block settings using the [Settings] button. Below
the hot water tank function block is explained.
Fig. 6-18: Function block settings
An overview of the setting options appears. These
depend on the function block and can vary in number.
Fig. 6-19: Overview of the settings menu
To change the name, tap on the [Change name]
symbol. An on-screen keyboard appears in order to
enter the new name.
Fig. 6-20: On-screen keyboard
Press the [Save] button to save. To cancel, close the
window using the arrow on the left side.
6.1.6.5 Switch between function blocks
The principle of "producers" and "consumers"
In the user interface, the "producer" of the function
block and (if present) also the "consumer(s)" are
displayed. Producers are those components of the
heating system that produce heat, for example the
boiler or the buffer. Consumers are those components
which absorb the heat, for example the heating circuit
or the hot water tank.
The principle of "producers" and "consumers" are
explained using the example of the buffer below. The
buffer is charged by the boiler. The boiler is a
"producer" for the buffer, and the buffer is a
"consumer" of the boiler.
The heating circuit and the hot water tank are
connected to the buffer. Thus, the buffer is a producer
for the two consumers, namely the heating circuit and
the hot water tank.
ETAtouch controller Getting to know the control system
27
In the user interface, producers f or the function
block are always displayed on the left side and
consumers on the right side.
Fig. 6-21: Consumers and producers in the overview
1 Producers (in this example the boiler)
2 Consumers (e.g. heating circuit, hot water tank)
These symbols are also used to navigate. For
example, tapping the symbol of the producer
( )switches to its function block. The same works
with the symbol of the consumer ( ). If several
producers or consumers are present, a selection
window appears.
Fig. 6-22: Selection window
The symbols for both producers and consumers
vary between the function blocks.
6.1.6.6 Setting a time window
Setting the charging and operation times
In some function blocks, the time window for charging
the tank (for example the buffer and hot water tank), or
the operating times (for example for the heating circuit)
are set. This time window must be created in the
settings of the respective function block.
Subsequently, the setting of the charging times
and temperatures will be described in relation to
the hot water tank. This example applies accordingly to
other function blocks.
Open the overview of the time window settings
1. Open the settings for the function block with the
[Settings] button.
Fig. 6-23: Open the settings
2. Access the charge times of a particular day with
the [Charging times Daily plan] button.
Fig. 6-24: Access charging times
28 www.eta.co.at
Getting to know the control system ETAtouch controller
3. An overview screen opens.
Fig. 6-25: Overview
1 Selected time window (charging times or operating
times)
2 Select day of the week
3 Add another time window
4 Graphical representation of the time window
setting
5 Overview of all time windows for the entire week
6 Delete time window
7 Adjustable target temperature.
This is dependent on the function block, and, in this
example, corresponds to a hot water temperature
of 55 °C.
8 Period of the time window.
In this example, the hot water is charged between
08:00 a.m. and 8:00 p.m. to 55 °C.
9 Set-back temperature.
Outside the time window, the hot water is charged
to this set temperature.
Setting the time window is described below.
Setting the charging times
1. In the overview, select the charge time. In each
field, use the arrow keys ( , ) to set the
time and temperature.
Fig. 6-26: Setting time slot and temperature
In this example, the hot water is charged between
08:00 a.m. and 8:00 p.m. to 55 °C
2. If an additional time window is necessary, add it
using the button. Adjust as described above.
A maximum of 3 time windows can be set. To
delete an unnecessary time window, press
the button in the selected time window.
3. For the period outside of the set charging times, a
reduced temperature can be set. To adjust the
settings, select the [Set-back temperature outside
the time window] field and use the arrow keys to
select the desired temperature.
Fig. 6-27: Reduced operation temperature settings
In this example, the desired hot water temperature
outside the charging times is 30 °C.
When loading times and temperatures of a day of the
week have been set, they can be copied to other days
of the week.
Copying time windows
In the following example, the time windows from
Wednesday are copied to Saturday and Sunday.
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