SOLARFOCUS PelletElegance 10 User manual

Installation manual for qualified personnel
Read carefully before operating.
DR-0032-EN / v35a-202109
Pellet boiler pelletelegance

1 About this manual
1 About this manual 2
2 Safety information 3
3 Technical requirements 3
3.1 Warranty, guarantee, liability 3
3.1.1 Technical requirements for warranty and gua-
rantee claims 3
3.1.2 Conditions for claims 4
3.1.3 Claims rendered void 5
3.1.4 Limitation of liability 5
3.2 Standards, guidelines, regulations 5
3.3 Installation room 6
3.4 Chimney, flue gas pipe 6
3.5 Supply air in the installation room 7
3.6 Room sealed operation (RS) 8
3.7 Heating system fill-up water 8
3.7.1 Avoiding scale buildup 8
3.7.2 Avoiding water-side corrosion 9
3.8 Information about the hydraulic connection 9
4 Product information 10
4.1 Scope of delivery 10
4.2 Accessories 10
4.3 Functional components 11
4.4 Dimensions and connections 12
4.4.1 Flue gas pipe facing upwards - dimensions 12
4.5 Technical specifications 14
5 Installation 16
5.1 Prepare and position the boiler 16
5.1.1 Removing the ash container 16
5.1.2 Removing the cover 16
5.1.3 Removing the boiler door 16
5.1.4 Removing the disposable pallet 16
5.1.5 Placement of the boiler 16
5.1.6 Removing the top cover 17
5.1.7 Removing the right-hand side panel 17
5.1.8 Setting the adjustable feet 17
5.1.9 Fitting the ball valve for return 1 and flow 2 17
5.2 Establishing the room-sealed connection
(optional) 17
5.3 Establishing the chimney connection 20
5.3.1 pellet elegance Flue gas pipes: Overview 20
5.3.2 Flue gas pipe facing upwards (optional) 21
5.3.3 Flue gas pipe: Hole for emission measurement 21
5.4 Connecting the pellet hose 22
5.4.1 Electrically earthing the pellet hose 22
6 Hydraulic equipment 23
6.1 Information about installing the hydraulic
extensions 23
6.2 Position of the servomotor on the mixer 24
6.3 Basic equipment: Buffer charging 25
6.4 Extension pack for heating circuit 1 25
6.5 Extension pack for heating circuit 2 27
6.6 Extension pack: DHW tank charging (or
unmixed heating circuit) 28
6.7 Extension pack: DHW tank charging
(without buffer tank) 29
6.8 Extension: Only heating circuit(s), without
DHW tank, without buffer tank 30
7 Hydraulic connection 31
7.1 Boiler connections 31
7.2 Filling the heating system 31
7.3 Venting the heating system 31
7.4 Connecting the safety valve's blow-off line 32
7.5 Installing thermal overload protection 32
7.6 Removing the shut-off valve on the buffer
return 33
8 Electrical connection 33
8.1 Power supply for the heating system 33
8.2 Connections on the power element 33
8.2.1 Connecting the heating circuit pump (X9, X10) 34
8.2.2 Pellet conveyor system (X14) 35
8.2.3 External boiler request (X28) 35
8.2.4 Operating fault (X29) 35
8.2.5 External request (X51) 35
8.2.6 Installing the emergency OFF switch 35
8.3 Sensor resistance table 36
8.4 Electrical fusing 36
8.5 Connecting the control to the internet 36
9 Initial start-up 37
10 Shut-down 37
11 Annex 38
11.1 Power element (figure) 38
11.2 Electrical components - overview 39
1 About this manual
Dear heating engineer
To ensure reliable and efficient operation of the hea-
ting system, the following points are extremely import-
ant:
–Correct installation
–Training of customers in initial commissioning
–Complying with the specifications and instructions
in this manual
–Regular maintenance by the system operator
–Regular maintenance by qualified personnel
2 Installation manual pelletelegance
Content

2 Safety information
Language
The language of the original manual is German. Ver-
sions of this manual in all other languages are trans-
lations of the original.
Storage
Keep the manual for the entire service life of the pro-
duct and ready to hand. The manual must be passed
on to the new owner when the product is dis-
mantled/reused. If the manual is lost or destroyed,
request a new copy from the manufacturer.
Instructions and warnings
The instructions used in this manual are highlighted
with symbols and signal words. The signal word indi-
cates the level and nature of the danger.
iIndicates information for correct handling of
the product.
!ATTENTION - Failure to comply with this
instruction could result in damage to property.
DANGER - Failure to comply with this instruc-
tion poses a danger to people.
Manufacturer
SOLARFOCUS GmbH
Werkstrasse 1, A-4451 St.Ulrich
Company register no. 281755x
Tel.: [phone], Fax: [phone]
[email protected]
www.solarfocus.com
Service Hotline
–Email: [email protected]
2 Safety information
Qualification of personnel
–The work procedures described in this manual
must only be carried out by qualified specialist per-
sonnel.
–Work on electrical components must only be per-
formed by trained electricians and in accordance
with the relevant rules and directives.
Installation and commissioning
–System may only be installed and put into ope-
ration by qualified personnel (SOLARFOCUS ser-
vice technician or SOLARFOCUS service partner.
Keep unauthorized persons and children away
–Danger of burns due to hot lines and hot com-
ponents, risk of injury from mechanically moving
parts. Keep unauthorised persons away, do not
leave children unattended, and control access to
the boiler room and fuel storage room.
Safety devices
–Never disengage the safety equipment of the hea-
ting system. In case of failure, arrange for
immediate repair.
Maintenance and repair
–Perform maintenance activities at the specified
intervals. No or incorrect maintenance leads to
inefficient operation, higher failure risk of the boi-
ler and increased potential for hazards.
Recommendation: Conclude maintenance con-
tract
–Have repairs done by qualified personnel only.
Improper repairs can lead to risks for the user and
impaired operation.
–Only store hot ashes in metal containers. Never
put hot or warm ash in the dustbin. This poses a
huge fire risk.
–For repairs use only original spare parts or parts
approved by the manufacturer (e.g. standard
parts).
Damage to the system
–If the electrical insulation (cables, plugs, switches)
becomes damaged, switch off the power supply
and have the insulation repaired.
–In the case of visible damage (e.g. thermal defor-
mation, mechanical damage) do not continue to
use the system. The system may only be ope-
rated if it is in perfect technical condition.
3 Technical requirements
3.1 Warranty, guarantee, liability
Warrantyclaims are valid as part of a boiler main-
tenance agreement.
3.1.1 Technical requirements for warranty
and guarantee claims
The following technical requirements must be obser-
ved as a precondition for a warranty and guarantee
claim.
Installation manual pelletelegance 3

2 Safety information
Regular maintenance and cleaning
–The boiler and the heating system components
must be maintained and checked regularly.
–This is the prerequisite
–for permanently reliable functioning of the boi-
ler,
–for energy-saving and environmentally friendly
operation of the boiler,
–for a long boiler service life.
–Option/recommendation: Conclude maintenance
contract.
–Documentation is crucial: When maintenance is
performed by qualified personnel, the activities
carried out/measures taken are documented in
the maintenance log. It is advisable to keep a sys-
tem book, especially when foregoing main-
tenance by qualified personnel (for
documenting/as proof of one's own activities).
Fuel
–The fuel used > 1 must meet the specifications.
–Non-approved fuel may lead to inefficient
combustion and cause damage to the boiler.
Specifications for the heating system's fill-up/-
make-up water
–Check pH value: this must be in the range of
8.2 to 9.5
–Avoiding scale buildup > 8(limescale on heat
exchanger surfaces):
–Take the water hardness into account
–Soften the fill-up water, or better: desalinate it.
–Avoiding water-side corrosion > 9(is triggered by
the oxygen in the water):
–Correct system planning, correct dimen-
sioning, take material combinations into
account.
–Repair leaks immediately.
–Expansion tank > 9(prevents air from being
drawn in when the system cools down): Cor-
rectly set the pressure, check it regularly.
–Existing underfloor heating: Take care with
old, diffusion-open plastic pipes > 10
Return temperature in the boiler
–A temperature below the dew point (leads to cor-
rosion in the boiler) must be prevented by a suf-
ficiently high return temperature in the boiler.
–In the case of the pellet elegance, this is ensured
by the return flow boosting which is integrated as
standard.
Supply air to the heating boiler
–The supply air in the boiler must not contain any
aggressive substances. These substances can
cause corrosion in the boiler and chimney.
–Aggressive substances are, for example, chlorine
or fluorine compounds (used in cleaning agents,
solvents, adhesives, etc.).
3.1.2 Conditions for claims
For warranty and guarantee claims observe the fol-
lowing points:
–The warranty begins at the time at the time of han-
dover (delivery note, commissioning log).
–The warranty period is calculated from the date of
initial commissioning (according to the control's
operating hour counter).
–The warranty periods are based on the relevant
regulations.
–We must be notified promptly and accurately of
any damage incurred, so that the cause can be
clarified.
–If the system has defects despite correct instal-
lation (in compliance with the technical docu-
mentation), we grant a warranty provided that the
system has been examined by the plant customer
service (commissioning log).
–The guarantee applies to technical, construction-
related faults and faults in the manufacture of the
system that prevent correct and problem-free
usage.
–We are not liable for parts that were not produced
by SOLARFOCUS. However, we are prepared to
transfer our existing claims against the producer
(relating to this defect) to the buyer.
–In fulfilling the warranty/guarantee services, we
shall cover only the assembly time and the mate-
rials used, but not any travel or accommodation
costs necessary for the fitters/engineers or any
return transport costs.
–SOLARFOCUS GmbH assumes no liability for
any consequential costs of damages.
–The repair and/or warranty replacement shall be
carried out on site or in the SOLARFOCUS fac-
tory at our discretion.
–The company SOLARFOCUSwill determine whe-
ther such work requires a repair or whether the
parts are to be replaced free of charge.
4 Installation manual pelletelegance

2 Safety information
3.1.3 Claims rendered void
The warranty and guarantee claims are rendered
void if one of the following points applies:
–Non-compliance with the technical requirements
> 3
–Damage during transport.
–Wilful damage.
–Damage due to force majeure (water, fire, etc.).
–Non-observance of information in the planning,
installation and operation manual.
–Insufficient energy or water, fault in the hydrau-
lics.
–Incorrect operation, failure to perform main-
tenance and cleaning as prescribed.
–Commissioning and maintenance carried out by
non-certified companies.
–Undocumented commissioning (no com-
missioning log) and/or maintenance (main-
tenance log).
–It is almost impossible to produce flawless pain-
ted parts; for this reason, slight defects that do not
adversely affect proper use shall not be deemed
as grounds for complaint.
–No claims can be accepted under the warranty if
unauthorised intervention (or action that has not
been explicitly approved by us the manufacturer)
has been carried out. In addition, the goods must
be paid for within the specified payment time-
frame.
3.1.4 Limitation of liability
SOLARFOCUS GmbH accepts no liability for injury or
material damage resulting from:
–Failure to observe the instructions in this manual.
–Use of the product for any purpose other than for
its intended use.
–Deployment of unqualified personnel.
–Use of non-approved spare parts.
–Technical modification of the product by the sys-
tem operator.
3.2 Standards, guidelines, regulations
The following bodies of regulations must be con-
sidered and adhered to during planning, installation
and operation of the heating system:
Standards for heating systems
–EN303-5 - Part 5: Heating boilers for solid fuels,
manually and automatically stoked, nominal heat
output of up to 500 kW
–EN12828 - Heating systems in buildings - Design
for water-based heating systems
–EN13384-1 - Chimneys - Thermal and fluid dyna-
mic calculation methods - Part 1: Chimneys ser-
ving one combustion appliance
–ÖNORMH 5151 - Planning of central hot water
heating systems with or without hot water pre-
paration - Part 1: Building with a specific trans-
mission conductance value above 0.5 W/(K.m²)
–ÖNORM7510-1 - Checking of heating systems -
Part 1: General requirements and inspection -
national supplement to ÖNORM EN 15378
–ÖNORM7510-4 - Checking of heating systems,
Part 4: Simple testing of combustion systems for
solid fuels
Standards for structural setup and safety devi-
ces
–TRVB 118 H - Technical guidelines for pre-
ventative fire protection (Austria)
–ÖNORMH 5170 - Heating systems - requi-
rements for construction and safety technology as
well as for fire prevention and environmental pro-
tection
–ÖNORM M 7137 - Compressed wood in natural
state - Wood pellets - Requirements for storage of
pellets at the ultimate consumer
Standards for fuel
–EN ISO 17225-2 - Solid biofuels - Fuel spe-
cifications and classes; Part 2: Graded wood pel-
lets
–1. BImSchV- Federal Immission Control
Ordinance - ordinance on small and medium
solid-fuel combustion systems (Germany)
Standards for heating water
–ÖNORMH 5195-1 - Heat transfer media for buil-
ding services systems, Part 1: Preventing
damage from corrosion and scale formation in clo-
sed hot water heating systems (Austria)
–VDI 2035 - Prevention of damage in hot water
heating systems (Germany)
–SWKI BT 102-01 - Water quality for building sys-
tems (Switzerland)
–UNI 8065 (Italy)
Installation manual pelletelegance 5

2 Safety information
3.3 Installation room
Structural specifications
–The boiler may only be installed in a dry, frost-free
room; the permissible room temperature is 5 to
30°C.
–The boiler may only be used on a non-com-
bustible surface with sufficient load-bearing capa-
city.
–Observe spacing to combustible materials (regio-
nal regulations).
–Note the installation dimensions to ensure suf-
ficient space is provided (e.g. for service and
maintenance work).
–For normative requirements, see ÖNORMH5170
and directive TRVB 118 H.
Fire extinguishers
–Austria: A 6 kg ABC powder extinguisher is spe-
cified as the minimum requirement. Install it out-
side the boiler room in an easily visible and
quickly accessible place.
–Germany, Switzerland: In private homes, no fire
extinguisher is required for heating systems.
However, having a fire extinguisher is recommen-
ded.
Keep escape routes clear
–Under staircases, on escape routes and in uncon-
verted attics, the installation of fireplaces is inad-
missible.
3.4 Chimney, flue gas pipe
Chimney cross-section and chimney height
The necessary cross-section depends on the nominal
output of the heating system and the effective chim-
ney height (at least 6.5 m). We recommend that you
have the chimney calculations performed by qualified
personnel.
As a general rule of thumb:
For nominal boiler outputs of up to 25 kW, select
achimney diameter of 13 cm.
Chimney execution
–The chimney must be resistant to moisture. Use
fire brick or stainless steel.
–The chimney must conduct away the flue gases
reliably at all times.
Connect the chimney condensate drain to the
sewage system
–Connect the condensate drain line of the chimney
to the domestic sewage system (to drain con-
densate, rainwater).
–Use DN 25 diameter pipe, install trap.
Provide each boiler with its own chimney
–The boiler and the chimney must be coordinated.
This is the only way to ensure the proper func-
tioning of the heating system and the correct
discharge of the flue gases.
–If there is only one chimney available for two boi-
lers, there is a risk (considering the different ope-
rating states of the boilers - full load/partial load)
of poor coordination. This can lead to problems
(e.g. the flue gas has too little energy during the
ascent, and does not lift off sufficiently from the
chimney mouth, ...odour pollution by flue gases).
–Chimneys with just one device are more reliable
and safer than chimneys with multiple devices.
Do not connect a gas boiler and blower boiler to
the same chimney
Do not connect a wood-burning stove and
blower boiler to the same chimney
–A wood-burning stove typically requires a larger
chimney diameter than the blower boiler.
–Acoustic disturbance from the blower boiler may
be possible in the living room (by the wood-
burning stove).
–Unnecessary risk due to gas leakage, e.g. if the
blower boiler is defective.
6 Installation manual pelletelegance

2 Safety information
Execution of the flue gas pipe
–Run the flue gas pipe towards the chimney in
a short and rising direction, with as few chan-
ges of direction as possible.
–Change direction in the form of aerodynamically
favourable arcs, do not build kinks.
–The diameter of the flue gas pipe to the chimney
may be enlarged if required, but may not be redu-
ced.
–Place the inlet of the flue gas pipe in the chimney
just below the ceiling.
–The flue gas pipe must be tight. Seal seal-less
flue gas pipes on site with heat-resistant silicone.
Insulate flue gas pipe
–Insulate the flue gas pipe continuously from the
boiler to the chimney.
–Recommended insulation thickness: 50 mm rock-
wool.
–Serves to prevent temperature loss and prevents
the consequential formation of condensation.
Cleaning opening in the flue gas pipe
–To clean the flue gas pipe (e.g. removal of accu-
mulated flue ash) there must be an easily acces-
sible cleaning opening.
–Recommendation:Coordinate the number and
placement of the cleaning openings with the chim-
ney sweep.
Opening for emissions measurement in the flue
gas pipe
Make an opening (hole) in the flue gas pipe to per-
form the prescribed emission measurement > 21
Minimum draught requirement for boiler: 5 Pa
A draught stabiliser must be fitted if the specified
draught of 15 Pa is exceeded.
Recommended chimney diameter
Install explosion flap
Abb. 2-1:Explosion flap integrated into draught stabiliser
iBefore longer horizontal pipe sections
(L>20xD) and at the high point before drop-
ping down the flue gas pipe, an explosion flap
must be installed, independent of the boiler
output.
In the case of boiler output <50 kW, no explosion flap
is required (in the case of a short and rising flue gas
pipe to the chimney).
3.5 Supply air in the installation room
For Austria (according to standard H 5170):
–For the supply air, 2 cm² per kW thermal output of
the fuel, but allow at least 200 cm² free cross-sec-
tion. (Fuel heat capacity = boiler capacity / effi-
ciency)
–For the exhaust air, allow at least 180 cm² free
cross-section up to 100 kW nominal heat and an
additional 1 cm² free cross-section for every fur-
ther kW.
iCalculate at least a further 20% for wire mesh
in the aeration cross-section.
For Germany In accordance with the Model Firing
Ordinance:
–For heating appliances with a nominal output of
up to 35 kW, a combustion air opening of at least
150 cm² or 2 x 75 cm² routed directly into the open
air must be provided.
–Alternatively, a door/window leading outside and
a room content of at least 4 m³/kW nominal heat
output are suitable. If the Aufstellraum does not
abut onto an outside wall, combustion air supply
via connecting rooms is possible. Here, the com-
bustion air is supplied via a sufficiently dimen-
sioned adjacent room which abuts onto an
outside wall.
–From 35 to 50 kW, provide a free aeration cross-
section of at least 150 cm². From 50 kW upwards,
for aeration and ventilation, provide a minimum
free cross-section of 150 cm² for each, plus 2 cm²
per KW in excess of 50 kW.
iCalculate at least a further 20% for wire mesh
in the aeration cross-section.
Installation manual pelletelegance 7

2 Safety information
Boiler
power
[In kW]
Minimum space [in cm²] including 20%
surcharge for grids
Austria Germany Switzerland
Supply
air
Exhaust
air
Supply
air/Exhaust
air
Supply air
20 kW
>240 >216
>180 >206
25 kW >180 >258
35 kW >180 >361
50 kW >228 >515
70 kW >228 >721
90 kW >276 >927
130 kW >347 >252 >372 >1339
200 kW >533 >336 >540 >2060
400 kW >1067 >576 >1020 >4120
3.6 Room sealed operation (RS)
Basic information
In conventional boiler Installation rooms, the
necessary supply air openings from outdoors lead to
uncontrolled heat loss. This is prevented by room-
sealed (RS) boilers, as the combustion air is drawn in
from outside in closed supply air lines directly into the
boiler and not in the installation room.
RS line integrated in chimney
The recommended variant: The intake air is taken in
from outside of the chimney pipe down to the boiler.
RS line outside of the chimney
–Fire-rated insulation with rockwool required if the
RS line passes through other rooms.
–Cold insulation of the RS line within building ele-
ments (wall, floor, etc.) required to avoid damage
to the building from condensate.
–Further information: standard EN 15287-2
►Establishing the room-sealed connection > 17
3.7 Heating system fill-up water
In regard to the fill-up water quality, two key points
must be observed (in accordance with Guideline
VDI2035):
–Avoiding scale buildup (limescale)
–Avoiding water-side corrosion (caused by oxygen
in the heating water)
The lowest possible rate of corrosion of the installed
metal materials is primarily achieved when the circula-
tion water is in the correct pH range (8.2 to 9.5) while
at the same time, the electrical conductivity (50 to 100
µS/cm) is as low as possible.
3.7.1 Avoiding scale buildup
What is scale buildup?
Scale buildup is the formation of firmly adhering depo-
sits on water-contacting walls of hot water heating
systems (e.g. the boiler heat exchanger surfaces).
This can subsequently lead to damage (stress cracks
in metal, leaks).
Causes of scale buildup
The cause of scaling is the presence of calcium carbo-
nate in the water.
The following calculation/table determines the total
permitted hardness of the fill-up water. If the value is
exceeded, the fill-up water must be treated, e.g. sof-
tened.
Calculation of the total permitted hardness of the
fill-up water
To use the table, the specific system volume for the
system must be determined:
System volume divided by total heat output results in
the specific system volume
1166 litres / 25 kW =46.64 l/kW specific system
volume
Table:Total permitted hardness of the fill-up water
Total heat
output
Specific system volume (VDI 2035)
<20
l/kW
≥ 20 <50
l/kW
≥ 50
l/kW
< 50 kW ≤ 16.8°dH ≤ 11.2°dH < 0.11°dH
50 - 200 kW ≤ 11.2°dH ≤ 8.4°dH < 0.11°dH
20 - 600 kW ≤ 8.4°dH < 0.11°dH < 0.11°dH
> 600 kW < 0.11°dH < 0.11°dH < 0.11°dH
In our example: if the total hardness of the fill-up
water is more than 11.2dH, then the fill-up water
must be treated.
8 Installation manual pelletelegance

2 Safety information
3.7.2 Avoiding water-side corrosion
Corrosion is usually triggered by the available oxygen
in the water. This value can be brought into a safe
range with proper planning, design, installation and
maintenance of the heating system. A constant input
of oxygen should be avoided.
Important in this regard:
–Expansion tank > 9: Air must be prevented from
being drawn in when the heating system is coo-
ling down. Ensure:
–Correct planning and implementation of the
expansion tank.
–Regular check of the system pressure, expan-
sion tank pre-pressure.
–Immediate repair of leaks in the heating system.
–In the case of older underfloor heating, ensure
pipes are diffusion resistant > 10
Check the pH of the fill-up water
–The pH value must be between 8.2 and 9.5.
–If this pH value does not self adjust after a week of
operation, it must be raised by adding 10 g/m³ tri-
sodium phosphate (Na3PO4) or 5 g/m³ sodium
hydroxide (NaOH). Allow 2 to 4 weeks of ope-
ration before further corrections.
–Exception: If aluminium materials are used in the
heating system, a pH from 8.2 to 8.5 must be met
(pH> 8.5 increased corrosion tendency).
Electrical conductivity
The probability of corrosion usually decreases with
decreasing electrical conductivity of the heating
water.
Low salt operation - filling with demineralised
water, see VDI 2035 sheet 2.
Low salt
Electrical conductivity at 25°C < 100 µS/cm
In the case of low-salt operation, feeding with non-
demineralised water can have a significant effect on
the pH value and push it into a critical range.
►Check the pH value regularly.
3.8 Information about the hydraulic
connection
Return flow boosting (RFB)
–Functioning: If cold heating water (temperature <
55°C) flows from the heating circuit or the buffer
tank into the hot boiler, the steam contained in the
flue gas condenses on the "cool" boiler heat
exchanger surfaces. In the long term this leads to
corrosion and damage in the boiler. To avoid this,
hot water from the boiler flow is added to the
boiler return.
–Return booster modules with a motor-controlled
mixer perform this task more accurately and
reliably than thermally controlled modules.
–In addition, they allow the use of residual heat: If
the boiler temperature rises again after the burner
has stopped, then the charging pump starts, the
mixer opens, and the residual heat from the boiler
is transferred to the buffer tank.
iThe pellet elegance has integrated return flow
boosting as standard, i.e. no further measures
are required in this regard.
Provide shut-off options in the lines
–Position shut-off valves for each section (in buffer
tank, etc.) in order to minimise the quantity of
water that needs to be replaced in the event of
repairs or system extensions (see: preventing the
ingress of oxygen, heating system's fill-up/make-
up water > 8).
Pressure equalisation through expansion tank
–The expansion tank prevents air from being
drawn in when the system cools down (issue: oxy-
gen input, heating system's fill-up water > 8)
–Dimension the expansion tank with a capacity of
12% of the total hydraulic system volume.
–Secure the expansion tank against shut-off. To do
this, either use the shut-off options on the way to
the expansion tank as cap valves, or unscrew the
hand lever (handwheel) and attach it to the expan-
sion tank with the wire in a clearly visible position.
–Installation of an expansion tank or a pressure
maintenance system is essential. Use of open
expansion tanks is not permitted.
–The pressure in the heating system (can be read
off the manometer) and the set pre-pressure in
the expansion tank must be checked regularly.
Installation manual pelletelegance 9

4 Product information
Caution with (older) diffusion-open plastic pipes,
e.g. existing underfloor heating
–In the case of older underfloor heating, the dif-
fusion-open plastic pipes can result in increased
oxygen input in the heating system. This has a cor-
rosion-inducing effect on the heating system com-
ponents (see: Avoiding water-side corrosion > 9).
–In this case, the system must be separated
(through installation of a heat exchanger).
–Newer plastic pipes (since around the mid 1980s)
are diffusion resistant in line with DIN 4726.
Buffer tank: Use, dimensioning
Advantages of using a buffer tank:
–The boiler can always be operated in the optimum
load range. This results in a longer boiler service
life and reduces emissions.
–Avoids unnecessary boiler start phases, the hig-
her fuel consumption during the start phases is
significantly reduced.
–Continuously heated water is available in the buf-
fer tank for the heating circuit. The heating circuits
can therefore always be quickly supplied with
heat at all times.
If the heating system is operated without a buffer
tank, a hydraulic switch > 10 must be installed.
Dimensioning the buffer tank:
For pellet boilers, a buffer tank volume of at 30 litres
per kW heating output is recommended.
Hydraulic switch
–A hydraulic switch separates the flows in the boi-
ler and heating circuits.
–If the heating system is operated without a buffer
tank, a hydraulic switch must be installed bet-
ween flow and return.
Installing the dirt and sludge separator
–The separator removes circulating, magnetic and
non-magnetic free dirt and sludge particles (as of
5μm) in fully-automatic continuous operation
from the heating system.
–Ensures the long-term, correct functioning of heat
generators, thermostatic valves, heat exchangers
and lowers the risk of defects and malfunctions
over the long-term.
–Helps ensure quality heating water, even in the
case of existing systems, for example.
4 Product information
4.1 Scope of delivery
Qty. Designation
1 Boiler, preassembled
1 Return flow booster, integrated
2 Combustion grate
1Bag (transparent) with outdoor temperature sen-
sor
1 Flue pipe extension
from ∅80 to ∅100 mmfor pelletelegance 10/15
from ∅100 to ∅130 mmfor pelletelegance 20/24
Further information > 20
1 Operation manual
1 Installation manual
Not included in the standard scope of delivery:
–Pellet hose
–Flue pipe to chimney
–Chimney connection material
–Integratable heating circuits HC1, HC2.
4.2 Accessories
Lifting aid
–Optional accessories for carrying/moving the boi-
ler.
–Art. 6144
Abb. 2-2: Lifting aid mounted
10 Installation manual pelletelegance

2 Safety information
Extension pack for operation as a room-sealed
appliance (RS)
–Optional accessories for operation of the boiler as
a room-sealed appliance.
–Item 67250
–Further information about room-sealed operation
> 8
►Establish the room-sealed connection > 17
Abb. 2-3_RSExtension
Extension for flue gas pipe connection
–Optional accessories for extension of the connec-
tion to the top of the boiler.
►Establish the chimney connection > 20
4.3 Functional components
1 Buffer tank return / DHW tank return
2 Buffer tank flow / DHW tank flow
3 Suction turbine for pellets
4 Intermediate pellet store
5 Rotary valve
6 Pellet auger
7 Filling chamber
8 Combustion grate
9 Combustion chamber
10 Ash container
11 Ash extraction auger
12 Ash extraction auger motor
13 Heat exchanger turbulator
14 ID fan
15 Heat exchanger turbulator motor
Installation manual pelletelegance 11

2 Safety information
4.4 Dimensions and connections
Flue gas pipe connection aligned backwards
Flue gas pipe connection aligned upwards
1 Buffer tank return / DHW tank return
2 Buffer tank flow / DHW tank flow
âPellet suction
3 Heating circuit 1 - return
4 Heating circuit 1 - flow
5 Heating circuit 2 - return
6 Heating circuit 2 - flow
áPellet return air
All hydraulic connections external thread 1" flat
sealing.
4.4.1 Flue gas pipe facing upwards - dimen-
sions
pellet elegance 10 and 15
With extension 1(Ø80 to Ø100 mm, Art. 97013).
With extension 1(Ø80 to Ø100 mm, Art. 97013), and
optional extension 2(Ø100 to Ø130 mm, Art.
66556NIRO).
12 Installation manual pelletelegance

2 Safety information
pellet elegance 20 and 24
With extension 1(Ø100 to Ø130 mm, Art.
66556NIRO).
Overview of the pellet elegance flue gas pipes > 20
Installation manual pelletelegance 13

4.5 Technical specifications
pellet elegance 10 15 20 24
Power range [kW] 2.9 - 9.9 4.4 - 14.9 5.9 - 19.8 7.2 - 24
Energy efficiency class A+
Boiler class (acc. to EN305:5 2012) 5
Boiler efficiency - full load [%] 93.80 93.90 94 94.40
Boiler efficiency - partial load [%] 94 92.42 94.30 94.30
Dimensions
Width [cm] 60
Depth [cm] 90.5
Height (H)
- incl. adjustable feet, feet screwed in all the way
- without hydraulic connections on the top of the boiler
[cm] 130 157
Minimum room height [cm] 180 185
Weight
Weight [kg] 288 329
Water side
Water content [l] 25 36
Thermal overload protection [”] not required External thread
1/2”
Drain [”] External thread 1/2”
Max. permissible operating pressure [bar] 3
Electrical connection
Connection, fuse 230 VAC, 50 Hz, C13 A
Fuel
Fuel Wood pellets acc. to EN17225-2, ENplus-A1
Capacity of intermediate pellet store [l] 48 88
Flue gas side
Flue gas pipe diameter [cm] 10 13
Height to centre of flue pipe (D) [cm] 70 72
Flue pipe - side (A) [cm] 44 47
Capacity of ash container [l] 16.3 16.3
Flue gas mass flow full load [g/s] 5.5 8.4 10.5 12.5
Flue gas mass flow partial load [g/s] 2.5 3 3.5 4.1
Maximum flue gas temperature [1] full load [°C] 140
Maximum flue gas temperature [1] partial
load [°C] 100
Minimum draught requirement [2] [Pa] 5
Emissions according to test report
Flue gas values (in relation to 13% O2) from
test report:testing institute/test report No.
TÜV Austria /14-
UW-Wels-EX-
425-1
TÜV Austria /14-
U-023/ALN
TÜV Austria /14-
UW-Wels-EX-
425-2
TÜV Austria /14-
UW-Wels-EX-425-3
CO full load [mg/m³] 30 30 30 49
CO partial load [mg/m³] 168 132 97 97
NOx full load [mg/m³] 112 112 112 111
NOx partial load [mg/m³] 111 108 105 105
Org. C full load [mg/m³] 3 3 3 3
Org. C partial load [mg/m³] 4 3 3 3
Dust content full load [mg/m³] 11 13 13 12
Dust content partial load [mg/m³] 12 13 14 14
2 Safety information
14 Installation manual pelletelegance

2 Safety information
Installation manual pelletelegance 15
pellet elegance 10 15 20 24
Regulation (EU) 2015/1187
Nominal heating output [kW] 9.9 14.9 15.5 22
Boiler's energy efficiency class A+ A+ A+ A+
Energy efficiency class EEI of boiler and con-
trol combined A+ A+ A+ A++
Energy efficiency index EEI of the heating
boiler 114 119 121 122
Energy efficiency index EEI of the boiler and
control combined 118 123 125 126
Space heating annual usage etaS [%] 77 80 82 83
Annual emission values
CO - carbon monoxide [mg/m³] 93 103 112 116
NOX- nitrogen oxide [mg/m³] 140 143 146 145
C - Total (carbon) [mg/m³] 4 4 3 3
Dust [mg/m³] 19 19 20 20
[1] Flue gas temperature can be adjusted electronically
[2] A draught stabiliser must be fitted if the specified draught of 15 Pa is exceeded (attention:In the case of a boiler with room-sealed ope-
ration, use a room-sealed draught stabiliser)

5 Installation
5 Installation
5.1 Prepare and position the boiler
5.1.1 Removing the ash container
►Pull the bar of the retaining device upwards and
pull the ash container out toward the front.
Abb. 2-4
5.1.2 Removing the cover
►Loosen the 4 screws and remove the cover 1.
5.1.3 Removing the boiler door
►Pull the small tab underneath the fitting (see fig.).
ÄThe hinge is released from the fixture.
Abb. 2-5
5.1.4 Removing the disposable pallet
►Remove the 4 x mounting brackets of the boi-
ler/pallet.
►Optional:Fit the lifting aid > 10 to the boiler.
►Lift/move the boiler from the pallet.
5.1.5 Placement of the boiler
iIf the boiler is extended for room-sealed ope-
ration > 8, fit the required parts before posi-
tioning the boiler.
iDuring placement of the boiler, observe the
required minimum distances > 12
16 Installation manual pelletelegance

5 Installation
5.1.6 Removing the top cover
►Loosen the 2 Allen screws 1on the right side of
the boiler.
►Lift the cover up and remove.
Abb. 2-6
5.1.7 Removing the right-hand side panel
►Lift the side panel and remove.
Abb. 2-7
5.1.8 Setting the adjustable feet
►Set the adjustable feet (x4) as required.
Abb. 2-8
5.1.9 Fitting the ball valve for return 1and
flow 2
(Only applies to pelletelegance 20 and 24)
5.2 Establishing the room-sealed connec-
tion (optional)
Optional extension pack for room sealed operation
(Art. no. 67250)
Abb. 2-9
Pos. Qty. Designation
1 1 Connection adapter
2 1 Aluminium hose - flexible, ∅80 mm,
length 1 m
3 1 Aluminium hose - flexible, ∅50 mm,
length 2.5 m
4 1 RS air distribution box
3 Clamp 70 - 90 mm
4 Clamp 40 - 60 mm
iIn case of exceeding the draught demand > 14
an RS draught stabiliser must be installed
(e.g. from Kutzner &Weber).
Installation manual pelletelegance 17

5 Installation
Remove boiler cladding
►Remove the top boiler cover > 17
►Remove the right-hand side panel > 17
►Release the 5 Allen screws and remove the
cover 1.
Abb. 2-10
Remove cover (including display)
►Lift the cover up and remove it by pulling it for-
ward.
Abb. 2-11
Remove the left side panel
►Remove the 12 x self-tapping screws and
remove the left side panel.
Abb. 2-12
Remove feeder sensor, disconnect cable
►Remove feeder sensor 1from the primary air
box.
►Terminate the cable of the primary air holding
magnet 2at the terminal (not at the magnet).
Abb. 2-13
18 Installation manual pelletelegance

5 Installation
Mount the RS air distribution box
►Route the cable of the primary air holding
magnet in the feed-through 1.
►Mount the RS air distribution box 2with 2 x self-
tapping screws 3on the primary air box (addi-
tional sealing is not required).
Abb. 2-14
Mount the aluminium hose, clamp the cable
►Fit the aluminium hose ∅50 mm for secondary
air 1and ignition supply air 2on the connection
pipes; clamp the cable (see following figure) bet-
ween the connection pipe and the aluminium
hose).
Abb. 2-15:View from the front
Clamping the cable at the hose connection
Abb. 2-16:
Mount connection adapter
The outlet for the RS intake line can be either at the
rear of the boiler or on top of boiler.
Abb. 2-17
►Mount adapter 1with 2 x Allen screws 2.
Abb. 2-18
Installation manual pelletelegance 19

5 Installation
Note: The standard intake line (scope of supply) has
a diameter of 80 mm and is 1 m long (can be exten-
ded to a maximum of 3 m). To extend the line further
(an additional length of 8 m is possible), the diameter
must be increased to 100 mm.
Mount aluminium hose and feeder sensor
►Mount aluminium ηοσε ∅ 80 mm 1on the
connecting pipes, fix with clamps.
►Insert feeder sensor 2into the RS air distribution
box as far as it will go.
Abb. 2-19
Boiler-controlled room air damper in the RS line
(optional)
Function: When the burner is switched off, the dam-
per closes to prevent any exchange of air inside the
RS line.
Abb. 2-20: Actuation of a room air damper
►Connect the room air damper to the boiler power
element at X6 (230 V AC).
►For the parameter Reserve relay, select the
value External boiler.
The parameter Reserve relay is located in the Ser-
vice menu >External boiler.
5.3 Establishing the chimney connection
See instructions for execution > 6
5.3.1 pellet elegance Flue gas pipes: Overview
pellet elegance 10 and 15
Abb. 2-21
1 ID fan
2Pipe Ø80 mm, length =500 mm
(Art. 66552NIRO, optional accessory)
3Extension from Ø80 mm to Ø100mm
(Art.97013, included in the scope of delivery of the boiler)
4Extension from Ø100 mm to Ø130mm
(Art.66556NIRO, optional accessory)
pellet elegance 20 and 24
Abb. 2-22
1 ID fan
2
Pipe Ø100 mm, length =250 mm
–Art. 66574NIRO, optional accessory;
–This article is included in the extension pack Art.
66553NIRO
3
Pipe Ø100 mm, length =500 mm
–Art. 66575NIRO, optional accessory
–This article is included in the extension pack Art.
66553NIRO
4Extension from Ø100 mm to Ø130mm
(Art.66556NIRO, included in the scope of delivery of the boi-
ler)
20 Installation manual pelletelegance