Fröling S3 Turbo User manual

Installation Instructions
Firewood boiler S3 Turbo
Translation of the original German installation instructions for technicians
Read and follow the instructions and safety information!
Technical changes, typographical errors and omissions reserved!
M1081217_en | Edition 23/03/2017
Froeling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.at
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Table of Contents
1 General 4
1.1 About this manual 4
2 Safety 5
2.1 Hazard levels of warnings 5
2.2 Qualification of assembly staff 6
2.3 Personal protective equipment for assembly staff 6
2.4 Design Information 7
2.4.1 Notes on standards 7
General standards for heating systems 7
Standards for structural and safety devices 7
Standards for heating water 7
Regulations and standards for permitted fuels 8
2.4.2 Installation and approval of the heating system 8
2.4.3 General information for installation room (boiler room) 8
2.4.4 Requirements for central heating water 9
2.4.5 Notes for using pressure maintenance systems 11
2.4.6 Return lift 11
2.4.7 Combination with storage tank 12
2.4.8 Chimney connection/chimney system 14
Draught limiter 14
Measuring port 14
Boiler data for planning the flue gas system 15
3 Technology 16
3.1 Dimensions 16
3.2 Components and connections 17
3.3 Technical specifications 18
4 Assembly 23
4.1 Materials supplied 23
4.1.1 Tools required 23
4.2 Positioning 24
4.2.1 Temporary storage 24
4.3 Setting up in the boiler room 25
4.3.1 Remove boiler from pallet 25
4.3.2 Moving the boiler in the boiler room 25
4.3.3 Minimum distances in the boiler room 26
4.4 Before Installation 26
4.4.1 Changing door stops (as needed) 26
Converting the fuel loading door 28
4.4.2 Fitting the door handles 29
4.4.3 Setting and checking the seal on the doors 29
Positioning the doors 31
4.5 Installing the boiler 32
4.5.1 Assembly overview 32
Insulation 32
Air duct system 34
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WOS system S3 Turbo 20-30 35
WOS system S3 Turbo 40-45 36
4.5.2 Fit flue gas pipe nozzle and the induced draught fan 37
4.5.3 Installing the pneumatic rods for the primary and secondary air 37
4.5.4 Final steps before insulating 39
4.5.5 Installing the insulation 39
4.5.6 Installing the door switch 42
4.5.7 Installing the back panel 42
4.5.8 Aligning the insulation and attaching the controller 43
4.5.9 Installing the cleaning port door and blank cover 45
4.5.10 Installing the insulated door 45
4.5.11 Fitting the sensors 48
4.5.12 Install the broadband probe (only with S-Tronic Lambda) 48
4.5.13 Installing the WOS system 49
4.5.14 Installing the manual controller/servo-motors 50
Mount the manual controller (with S-Tronic Plus control) 50
Mounting the servo-motors (with S-Tronic Lambda control) 50
Fit the cover plate. 51
4.6 Power connection and wiring 52
4.6.1 S-Tronic Plus / S-Tronic Lambda control 52
Power connection 52
Hydraulic system 53
4.6.2 Information on circulating pumps 54
Connecting a high efficiency pump 54
Connecting a squirrel cage standard pump 55
4.6.3 Concluding work 56
4.7 Connecting the hydraulic safety devices 57
5 Start-up 58
5.1 Before commissioning / configuring the boiler 58
5.2 Initial startup 59
5.2.1 Permitted fuels 59
Firewood 59
5.2.2 Fuels permitted under certain conditions 60
Wood briquettes 60
5.2.3 Non-permitted fuels 60
5.2.4 Heating up for the first time 61
Boiler with Lambda control 61
Boiler with manual controller 62
6 Decommissioning 65
6.1 Mothballing 65
6.2 Disassembly 65
6.3 Disposal 65
7 Appendix 66
7.1 Pressure equipment regulation 66
7.2 Addresses 67
7.2.1 Address of manufacturer 67
7.2.2 Address of the installer 67
Table of Contents
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1 General
Thank you for choosing a quality product from Froling. The product features a state-of-
the-art design and conforms to all currently applicable standards and testing
guidelines.
Please read and observe the documentation provided and always keep it close to the
system for reference. Observing the requirements and safety information in the
documentation makes a significant contribution to safe, appropriate, environmentally
friendly and economical operation of the system.
The constant further development of our products means that there may be minor
differences from the pictures and content. If you discover any errors, please let us
know: [email protected].
Subject to technical change.
The EC Declaration of Conformity is only valid in conjunction with a delivery certificate,
which has been filled in correctly and signed as part of the commissioning process.
The original document remains at the installation site. Commissioning installers or
heating engineers are requested to return a copy of the delivery certificate together
with the guarantee card to Froling. On commissioning by FROLING Customer Service
the validity of the delivery certificate will be noted on the customer service record.
1.1 About this manual
These installation instructions contain information for the following S3 boilers:
S3 Turbo 181), S3 Turbo 20, S3 Turbo 30 (31 kW)2),
S3 Turbo 40, S3 Turbo 45
1) S3 Turbo 18 only available in Italy; 2) S3 Turbo 30 with 31 kW nominal output only available in Austria and Italy;
Issuing a delivery
certificate
1General
About this manual
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2 Safety
2.1 Hazard levels of warnings
This documentation uses warnings with the following hazard levels to indicate direct
hazards and important safety instructions:
DANGER
The dangerous situation is imminent and if measures are not observed it will lead
to serious injury or death. You must follow the instructions!
WARNING
The dangerous situation may occur and if measures are not observed it will lead
to serious injury or death. Work with extreme care.
CAUTION
The dangerous situation may occur and if measures are not observed it will lead
to minor injuries or damage to property.
Safety 2
Hazard levels of warnings
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2.2 Qualification of assembly staff
CAUTION
Assembly and installation by unqualified persons:
Risk of personal injury and damage to property
During assembly and installation:
❒ Observe the instructions and information in the manuals
❒ Only allow appropriately qualified personnel to work on the system
Assembly, installation, initial startup and servicing must always be carried out by
qualified personnel:
- Heating technician / building technician
- Electrical installation technician
- Froling customer services
The assembly staff must have read and understood the instructions in the
documentation.
2.3 Personal protective equipment for assembly staff
You must ensure that staff have the protective equipment specified by accident
prevention regulations.
▪ For transportation, setup and assembly:
- suitable work wear
- protective gloves
- sturdy shoes (min. protection class S1P)
2Safety
Qualification of assembly staff
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2.4 Design Information
2.4.1 Notes on standards
The system must be installed and commissioned in accordance with the local fire and
building regulations. Unless contrary to other national regulations, the latest versions
of the following standards and guidelines apply:
General standards for heating systems
EN 303-5 Boilers for solid fuels, manually and automatically fed
combustion systems, nominal heat output up to 500 kW
EN 12828 Heating systems in buildings - design of water-based heating
systems
EN 13384-1 Chimneys - Thermal and fluid dynamic calculation methods
Part 1: Chimneys serving one appliance
ÖNORM H 5151 Planning of central hot water heating systems with or without hot
water preparation
ÖNORM M 7510-1 Guidelines for checking central heating systems
Part 1: General requirements and one-off inspections
ÖNORM M 7510-4 Guidelines for checking central heating systems
Part 4: Simple check for heating plants for solid fuels
Standards for structural and safety devices
ÖNORM H 5170 Heating installation - Requirements for construction and safety
engineering, as well as fire prevention and environmental
protection
Standards for heating water
ÖNORM H 5195-1 Prevention of damage by corrosion and scale formation in
closed warm water heating systems at operating temperatures
up to 100°C (Austria).
VDI 2035 Prevention of damage hot water heating systems (Germany)
SWKI BT 102-01 Water quality for heating, steam, cooling and air conditioning
systems (Switzerland)
UNI 8065 Technical standard regulating hot water preparation.
DM 26.06.2015 (Ministerial Decree specifying the minimum
requirements)
Follow the instructions of this standard and any related updates.
Safety 2
Design Information
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Regulations and standards for permitted fuels
1. BImSchV First Order of the German Federal Government for the
implementation of the Federal Law on Emission Protection
(Ordinance on Small and Medium Combustion Plants) in the
version published on 26 January 2010,
BGBl. JG 2010 Part I No. 4.
EN ISO 17225-3 Solid bio-fuel - Fuel specifications and classes
Part 3: Wood briquettes for non-industrial use
EN ISO 17225-5 Solid bio-fuel - Fuel specifications and classes
Part 5: Firewood for non-industrial use
2.4.2 Installation and approval of the heating system
The boiler should be operated in a closed heating system. The following standards
govern the installation:
EN 12828 - Heating Systems in Buildings
NOTICE! Each heating system must be officially approved.
The appropriate supervisory authority (inspection agency) must always be informed
when installing or modifying a heating system, and authorisation must be obtained
from the building authorities:
Austria: report to the construction authorities of the community or magistrate
Germany: report new installations to an approved chimney sweep / the building
authorities.
2.4.3 General information for installation room (boiler room)
Boiler room characteristics
▪ The floor must be even, clean and dry and have an adequate load-bearing
capacity.
▪ There must not be a potentially explosive atmosphere in the boiler room as the
boiler is not suitable for use in potentially explosive environments.
▪ The boiler room must be frost-free.
▪ The boiler does not provide any light, so the customer must ensure sufficient
lighting in the boiler room in accordance with national workplace design
regulations.
▪ When using the boiler above 2000 metres above sea level you should consult the
manufacturer.
▪ Danger of fire due to flammable materials.
The floor of the boiler room must not be flammable. No flammable materials
should be stored near the boiler. Flammable objects (e.g. clothing) must not be put
on the boiler to dry.
Note on standards
2Safety
Design Information
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▪ Damage due to impurities in combustion air.
Do not use any solvents or cleaning agents containing chlorine and hydrogen
halides in the room where the boiler is installed (e.g. chlorination units for
swimming pools).
▪Keep the air suction opening of the boiler free of dust.
▪ The system must be protected against the chewing or nesting of animals (e.g.
rodents etc.).
Ventilation of the boiler room
Ventilation air for the boiler room should be taken from and expelled directly outside,
and the openings and air ducts should be designed to prevent weather conditions
(foliage, snowdrifts, etc.) from obstructing the air flow.
Unless otherwise specified in the applicable building regulations for the boiler room,
the following standards apply to the design and dimensions of the air ducts:
ÖNORM H 5170 - Construction and fire protection requirements
2.4.4 Requirements for central heating water
Unless contrary to other national regulations, the latest versions of the following
standards and guidelines apply:
Austria:
Germany:
ÖNORM H 5195
VDI 2035
Switzerland:
Italy:
SWKI BT 102-01
UNI 8065
Observe the standards and also follow the recommendations below:
❒Aim for a pH value of between 8.2 and 10.0. If the central heating water comes
into contact with aluminium, the pH value must be between 8.0 and 8.5
❒ Use prepared water which complies with the standards cited above for filling and
makeup water
❒ Avoid leaks and use a closed heating system to maintain water quality during
operation
❒ When filling with make-up water, always bleed the filling hose before connecting,
in order to prevent air from entering the system
Advantages of prepared water:
▪ Complies with the applicable standards
▪ Less of a drop in output due to reduced limescale build-up
▪ Less corrosion due to fewer aggressive substances
▪ Long-term cost savings thanks to improved energy efficiency
Limit values for filling and make-up water:
Austria Germany Switzerland
Total hardness ≤ 1.0 mmol/L ≤ 2.0 mmol/L < 0.1 mmol/L
Conductivity - < 100µS/cm < 100 µS/cm
Note on standards
Safety 2
Design Information
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Austria Germany Switzerland
pH value 6.0 – 8.5 6.5 – 8.5 6.0 – 8.5
Chloride < 30 mg/L < 30 mg/L < 30 mg/L
Additional requirements for Switzerland:
The filling and make-up water must be demineralised (fully purified)
▪The water must not contain any ingredients that could settle and accumulate in the
system
▪ This makes the water non-electroconductive, which prevents corrosion
▪ It also removes all the neutral salts such as chloride, sulphate and nitrate which can
weaken corrosive materials in certain conditions
If some of the system water is lost, e.g. during repairs, the make-up water must also be
demineralised. It is not enough to soften the water. The heating system must be
professionally cleaned and rinsed before filling the units.
Inspection:
▪ After eight weeks, the pH value of the water must be between 8.2 and 10.0. If the central
heating water comes into contact with aluminium, the pH value must be between 8.0 and
8.5
▪ Yearly. Values must be recorded by the owner
2Safety
Design Information
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2.4.5 Notes for using pressure maintenance systems
Pressure maintenance systems in hot-water heating systems keep the required
pressure within predefined limits and balance out volume variations caused by
changes in the hot-water temperature. Two main systems are used:
Compressor-controlled pressure maintenance
In compressor-controlled pressure maintenance units, a variable air cushion in the
expansion tank is responsible for volume compensation and pressure maintenance. If
the pressure is too low, the compressor pumps air into the tank. If the pressure is too
high, air is released by means of a solenoid valve. The systems are built solely with
closed-diaphragm expansion tanks to prevent the damaging introduction of oxygen
into the heating water.
Pump-controlled pressure maintenance
A pump-controlled pressure maintenance unit essentially consists of a pressure-
maintenance pump, relief valve and an unpressurised receiving tank. The valve
releases hot water into the receiving tank if the pressure is too high. If the pressure
drops below a preset value, the pump draws water from the receiving tank and feeds it
back into the heating system. Pump-controlled pressure maintenance systems with
open expansion tanks (e.g. without a diaphragm) introduce ambient oxygen via the
surface of the water, exposing the connected system components to the risk of
corrosion. These systems offer no oxygen removal for the purposes of corrosion
control as required by VDI 2035 and in the interests of corrosion protection should not
be used.
2.4.6 Return lift
If the hot water return is below the minimum return temperature, some of the hot water
outfeed will be mixed in.
CAUTION
Risk of dropping below dew point/condensation formation if operated without
return temperature control.
Condensation water forms an aggressive condensate when combined with
combustion residue, leading to damage to the boiler.
Take the following precautions:
❒ Regulations stipulate the use of a return temperature control.
➥The minimum return temperature is 60 °C. We recommend fitting some
sort of control device (e.g. thermometer).
Safety 2
Design Information
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2.4.7 Combination with storage tank
Observe the regional regulations for using a storage tank!
Certain subsidy guidelines prescribe compulsory requirements for the installation of
storage tanks. Up-to-date information about individual subsidy guidelines can be found
at www.froeling.com.
Channelling the heat generated by the Firewood boiler to a storage tank can bring
major advantages, including:
❒better utilisation of fuel
❒ more user-friendly operation in terms of reloading intervals
❒ maximum independence from instantaneous heating requirements
❒ minimal dirt in boiler and flue gas system
As the boiler’s minimum continuous heat output is 30% above the nominal heat
output, we as boiler manufacturer are obliged under EN 303-5:2012, Section 4.4.6 to
advise that the Firewood boiler S3 Turbo must always be connected to a storage tank
with adequate storage capacity.
Certain countries have recommended storage capacities; these are listed below. The
specified values apply when the nominal heat output of the boiler corresponds to the
heating requirements of the building and a maximum of 50% of the nominal heat
output can be dissipated to the building being heated under partial load conditions.
The storage tank capacity can be calculated according to EN 303-5:2012 using the
following formula:
VSp= 15TBx QN(1 - 0.3 x QH/Qmin)
VSp
QN
TB
QH
Qmin
Storage tank capacity in [l]
Nominal heat output of boiler in [kW]
Burn-off period of boiler in [h]1)
Heating load of building in [kW]
Minimum heat output of boiler in [kW] 2)
1.Sample combustion times for various fuels are provided in the technical data
2.The boiler’s minimum output is the lowest value of the output range in the technical data. If there is no minimum heat output specified, use
the nominal heat output (Qmin = QN)
According to the relevant Austrian laws governing energy technology, which are based
on Art. 15a B-VG "Agreement on protective measures for small furnaces" (2012):
No storage tank is required on manually fed biomass boilers that have been positively
tested at both nominal load and partial load (below 50% of nominal load) to ensure
they adhere to the emissions limits specified in that agreement.
Recommended storage tank capacity:
Unit S3 Turbo
20 – 301)
S3 Turbo
40 - 45
Recommended storage tank capacity2) [l] 1700 3000
1.Applies for S3 Turbo 18 as well (only available in Italy)
2.Values for calculating the capacity can be found in the technical data or the technical data with partial load inspection (if available)
General information
Austria
2Safety
Design Information
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The first BImSchV (Ordinance on small and medium-sized heating plants of 26
January 2010, BGBl. I P. 38) stipulates a minimum water heat storage tank volume of
55 litres per kilowatt of rated heat output; a water heat storage tank with a volume of
12 litres per litre of fuel loading chamber is recommended.
Recommended storage tank capacity:
Unit S3 Turbo
20 – 301)
S3 Turbo
40 - 45
Recommended storage tank capacity2) [l] 1700 3000
1.Applies for S3 Turbo 18 as well (only available in Italy)
2.Values for calculating the capacity can be found in the technical data or the technical data with partial load inspection (if available)
For the correct dimensions of the storage tank and the line insulation
(e.g. in accordance with ÖNORM M 7510 or guideline UZ37) please consult your installer or
Froling.
Germany
Safety 2
Design Information
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2.4.8 Chimney connection/chimney system
EN 303-5 specifies that the entire flue gas system must be designed to prevent,
wherever possible, damage caused by seepage, insufficient feed pressure and
condensation. Please note in this respect that flue gas temperatures lower than 160K
above room temperature can occur in the permitted operating range of the boiler.
The flue gas temperatures (for clean systems) and additional flue gas values can be
found in the table below.
The connection between the boiler and the chimney system should be as short as
possible. The upward angle of the connection should not exceed 30 - 45°. Insulate the
connection. The entire flue gas system - chimney and connection - should be
calculated in accordance with EN 13384-1.
Local regulations and other statutory regulations also apply.
NOTICE! The chimney must be authorised by a smoke trap sweeper or chimney
sweep.
Draught limiter
We generally recommend the installation of a draught limiter. A draught limiter must
be installed if the maximum permissible feed pressure as given in the boiler data for
planning the flue gas system is exceeded.
NOTICE! Install the draught limiter directly under the mouth of the flue line, as the
pressure is constantly low at this point.
Measuring port
For measuring the emissions of the system, a suitable measuring port must be
installed in the connecting piece between the boiler and chimney system.
D
D
M
2 x D
In front of the measuring port (M) a straight inlet section should be located at a
distance corresponding to about twice the diameter (D) of the connecting piece. A
straight outlet section at a distance corresponding to about the single diameter of the
connecting piece should be provided after the measuring port. The measuring port
must remain closed whenever the system is in operation.
Ensure that the outside diameter of the sampling probes in the measuring port can
accommodate up to 13 mm. To avoid the ingress of false air, the diameter of the
measuring port must not exceed 21 mm.
2Safety
Design Information
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Boiler data for planning the flue gas system
Name S3 Turbo
201) 30 40 45
Flue gas temperature at nominal
load
°C 150 170 150 170
Flue gas temperature at partial load - 120 110 120
Flue gas mass flow at nominal load kg/s 0.016 0.022 0.028 0.033
Flue gas mass flow at partial load - 0.011 0.013 0.016
Required feed pressure at nominal
load
Pa 8
mbar 0.08
Required feed pressure at partial
load
Pa - 8
mbar - 0.08
Maximum permissible feed pressure Pa 30
mbar 0.3
Flue pipe diameter mm 149
1.Applies for S3 Turbo 18 as well (only available in Italy)
Safety 2
Design Information
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3 Technology
3.1 Dimensions
Dim
ensi
on
Name Unit S3 Turbo
20-301)
S3 Turbo
40-45
LLength of boiler mm 1160 1250
L1 Total length including induced draft fan 1260 1350
BWidth of boiler 570 670
B1 Total width inc. side cleaning door 680 780
HHeight of boiler 1470 1570
H1 Total height incl. flue gas nozzle 1530 1630
H2 Height of flue pipe connection 1750 1850
H3 Height of flow connection 1280 1380
H4 Height of return connection 140 140
H5 Height of safety battery connection 890 970
H6 Height of drainage connection 120 120
1.Applies for S3 Turbo 18 as well (only available in Italy)
3Technology
Dimensions
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3.2 Components and connections
Item Description Unit S3 Turbo
1 Boiler flow connection inches 6/4
2 Boiler return connection inches 6/4
3 Drainage connection inches 1/2
4 Safety battery connection inches 1/2
5 Immersion sleeve for thermal discharge valve
(supplied by the customer)
inches 1/2
6 Immersion sleeve for boiler sensor and STL inches 1/2
7 Flue gas pipe connection mm 149
8 Flue gas temperature sensor connection inches 1/2
9 Broadband probe connection inches 3/4
Technology 3
Components and connections
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3.3 Technical specifications
Name S3 Turbo 181) S3 Turbo 20
Nominal output kW 22.5 20
Electrical connection 230V / 50Hz / fused C13A
Power consumption at nominal load W 60 63
Power consumption in slumber mode 3
Weight of boiler incl. insulation and control kg 520
Total boiler capacity (water) l 120
Water pressure drop (ΔT = 10 / 20 K) mbar 4.6 / 1.9
Minimum boiler return temperature °C 60
Maximum permitted operating temperature 90
Permitted operating pressure bar 3
Airborne sound level dB(A) < 70
Permitted fuel as per EN ISO 17225 Part 5: Firewood class A2 / D15 L50
Fuel loading door dimensions (width / height) mm 330 / 370
Fuel loading chamber capacity l 140
Combustion time2) - beech h 4.3 - 6.3 4.7 - 6.9
Combustion time2) - spruce 3.0 - 4.4 3.3 - 4.8
1.S3 Turbo 18 only available in Italy
2.Values specified for combustion time are guideline values at nominal load and will vary depending on water content (15-25%) and fill level
(80-100%)
Regulation (EU) 2015/1187
Energy efficiency A+ A+
Rated heat output kW 23 20
Energy efficiency index of the boiler model 116 116
Seasonal space heating energy efficiency % 79 79
Energy efficiency index of the boiler in package with
temperature control
118 118
Energy efficiency class of the boiler in package with
temperature control
A+ A+
S3 Turbo 18 - 20
3Technology
Technical specifications
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Name S3 Turbo 30 S3 Turbo 301)
Nominal output kW 30 31
Electrical connection 230V / 50Hz / fused C13A
Power consumption at nominal load W 51 49 - 70
Power consumption in slumber mode 3
Weight of boiler incl. insulation and control kg 530
Total boiler capacity (water) l 120
Water pressure drop (ΔT = 10 / 20 K) mbar 6.1 / 2.0
Minimum boiler return temperature °C 60
Maximum permitted operating temperature 90
Permitted operating pressure bar 3
Airborne sound level dB(A) < 70
Permitted fuel as per EN ISO 17225 Part 5: Firewood class A2 / D15 L50
Fuel loading door dimensions (width / height) mm 330 / 370
Fuel loading chamber capacity l 140
Combustion time2) - beech h 3.9 - 5.6
Combustion time2) - spruce 2.8 - 3.9
1.S3 Turbo 30 with 31 kW nominal output only available in Austria and Italy
2.Values specified for combustion time are guideline values at nominal load and will vary depending on water content (15-25%) and fill level
(80-100%)
Regulation (EU) 2015/1187
Energy efficiency A+ A+
Rated heat output kW 30 31
Energy efficiency index of the boiler model 117 115
Seasonal space heating energy efficiency % 80 78
Energy efficiency index of the boiler in package with
temperature control
119 117
Energy efficiency class of the boiler in package with
temperature control
A+ A+
S3 Turbo 30
Technology 3
Technical specifications
Installation Instructions S3 Turbo | M1081217_en 19
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Name S3 Turbo 40 S3 Turbo 45
Nominal output kW 40 45
Electrical connection 230V / 50Hz / fused C13A
Power consumption at nominal load W 53 – 73 66
Power consumption in slumber mode 3
Weight of boiler incl. insulation and control kg 610 620
Total boiler capacity (water) l 190
Water pressure drop (ΔT = 10 / 20 K) mbar 7.0 / 2.1 22.0 / 6.3
Minimum boiler return temperature °C 60
Maximum permitted operating temperature 90 95
Permitted operating pressure bar 3
Airborne sound level dB(A) < 70
Permitted fuel as per EN ISO 17225 Part 5: Firewood class A2 / D15 L50
Fuel loading door dimensions (width / height) mm 330 / 370
Fuel loading chamber capacity l 210
Combustion time1) - Beech h 4.1 - 6.0 3.9 - 5.6
Combustion time1) - Spruce 2.9 - 4.2 2.7 - 4.0
1.Values specified for combustion time are guideline values at nominal load and will vary depending on water content (15-25%) and fill level
(80-100%)
Regulation (EU) 2015/1187
Energy efficiency A+ A+
Rated heat output kW 40 45
Energy efficiency index of the boiler model 115 116
Seasonal space heating energy efficiency % 78 79
Energy efficiency index of the boiler in package with
temperature control
117 118
Energy efficiency class of the boiler in package with
temperature control
A+ A+
S3 Turbo 40 - 45
3Technology
Technical specifications
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