Viadrus HERCULES ECO Specification sheet

VIADRUS HERCULES ECO
M
anual for boiler operation and installation
GB_2015_11 SD

2
Table of contents: page
1. Produced boiler variants..............................................................................................................................3
1.1 Purchase order.....................................................................................................................................3
2. Boiler usage and advantages......................................................................................................................3
3. Boiler technical data ....................................................................................................................................5
4. Boiler description.........................................................................................................................................7
4.1 Boiler drum construction.......................................................................................................................7
4.2 Construction of combustion chamber and fuel transport lines.............................................................8
4.3 Control, regulation and safety elements...............................................................................................8
4.4 Boiler outfit and accessories ..............................................................................................................11
5. Positioning and installation........................................................................................................................13
5.1 Rules and regulations.........................................................................................................................13
5.2 Positioning possibilities.......................................................................................................................14
5.3 Boiler hydraulic diagram.....................................................................................................................16
6. Boilers assembly .......................................................................................................................................17
6.1 Boiler drum installation.......................................................................................................................17
6.2 Burner assembly ................................................................................................................................18
6.3 Assembly of combustion chamber.....................................................................................................19
6.4 Assembly of the fuel transport lines ...................................................................................................24
6.5 Boiler shells and regulator assembly..................................................................................................25
6.6 Fuel reservoir assembly (this part is delivered optionally):.................................................................26
6.7 Filling the heating system with water..................................................................................................27
7. Commissioning- instructions for contracting service organization.............................................................28
7.1 Verification before commissioning. ....................................................................................................28
7.2 Boilers commissioning .......................................................................................................................28
8. Boiler operation by user.............................................................................................................................29
8.1 MONEX regulator...............................................................................................................................29
8.2 Boiler output setting............................................................................................................................33
8.3 Boiler firing .........................................................................................................................................35
8.4 Boiler operation ..................................................................................................................................35
8.5 Boiler shut-down.................................................................................................................................35
9. IMPORTANT NOTES................................................................................................................................36
10. Maintenance by user..............................................................................................................................36
11. Product liquidation instructions after service life....................................................................................37
12. Guarantee and liability for defects .........................................................................................................37

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Dear customer,
we thank you that you have bought the VIADRUS HERCULES ECO automatic boiler thus having
shown your confidence in VIADRUS a.s.
For you to get used to a correct way of handling your new product from the beginning please read at
first this manual for its usage (first of all the chapter no. 8 – Boiler operation by user, chapter no. 9 –
Important notes and chapter no. 10 – Maintenance by user). Please follow the undermentioned
information in order to guarantee a long-time and trouble-free boiler operation to both your and our
satisfaction.
1. Produced boiler variants
1.1 Purchase order
In the purchase order there must be specified:
Purchase order specification code
VIADRUS HERCULES ECO X
1. Boiler design (defined by the fuel reservoir position against the boiler drum in the front view):
- left version
- right version
2. Optional accessories (see chapter 4.4.)
!ATTENTION! The fuel reservoir isn’t included in standard boiler accessories!
The version of the boiler you received is only intended for combustion of wooden pellets (see the specification
chp. no. 3) and its trade name is VIADRUS HERCULES ECO.
The boiler is manufactured as in warm-water design with forced heating water circulation and operating
overpressure up to 400 kPa (4 bar). Before dispatch it is checked for tightness by applying 800 kPa (8 bar)
test overpressure.
2. Boiler usage and advantages
Usage:
• VIADRUS HERCULES ECO 5 boiler is preferentially intended for heating the individual housing units,
cottages, weekend houses, office buildings, small premises, smaller leisure amenities, etc.
• VIADRUS HERCULES ECO 10 boiler is preferentially intended for heating the medium size buildings-
shops, schools, leisure amenities, medium size premises, big cottages etc.
Boiler advantages:
• automatic operation controlled by an indoor device that guarantees a comfortable heating;
• mechanical fuel supply from any reservoir;
• simple, not time-consuming operation and maintenance;
• high efficiency achieving up to 87 %;
• low emissions complying with the values defined by „Environmentally friendly product”;
• depending on boiler room disposition there can be chosen either the left-or right-hand side boiler version
(given by the fuel reservoir position);
• boiler drum verified on a long-term basis;
• high service life of the cast-iron boiler drum;
• boiler drum guarantee 5 years.
Size:
5: 5 sectional design
10: 10 sectional design

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Fig.no.1 VIADRUS HERCULES ECO with fuel reservoir front view– left version
Fig.no.2 VIADRUS HERCULES ECO with fuel reservoir rear view– left version

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3. Boiler technical data
Tab. no.1 Dimensions, boiler thermal& technical parameters
VIADRUS HERCULES ECO 5
VIADRUS HERCULES ECO 10
Number of section 5 10
Nominal output kW 24 42
Adjustable output kW 7 – 24 13 – 42
Fuel consumption
(heating power approx. 17 MJ.kg
-1
) kg. h
-1
1,8 – 5,9 3,9 – 10,8
Output in „inhibition“ regime kW 1,5
Fuel Consumption in „inhibition“ regime kg. h
-
1
0,37
Efficiency % 86,5 87,3
Boiler category according to EN 303-5 4 4
Weight kg 441 645
Water space volume l 40,9 64,4
Diameter of smoke socket mm 156
Delivered fuel reservoir capacity dm
3
725
kg 470
Burning time at the nominal output h 80 43,5
Burning time at the minimum output h 261 120,5
Boiler dimensions: width x height x depth mm 1893 x 1407 x 1217,5 1893 x 1407 x 1697,5
Maximum water operating overpressure kPa (bar) 400 (4)
Testing water overpressure kPa (bar) 800 (8)
Heating water minimum temperature °C 60
Heating water maximum temperature °C 90
Minimum return water temperature °C 40
Chimney draught mbar 0,15 – 0,25 0,20 – 0,30
Flue gases temperature °C 110 – 170 110 – 142
Flue gases mass flow rate at the output:
- at the nominal output kg. s
-
1
0,019 0,038
- at the minimum output kg. s
-
1
0,013 0,029
Boiler connections - heating water Js G 1 1/2“
- return water Js G 1 1/2“
Noise level dB Doesn´t exceed level 60 dB (A)
Connecting voltage 1/N/PE 230 V AC 50 Hz TN - S
Electric input W 90
Regulator electric coverage IP 65
* When keeping the minimum temperature of heating water
BOILER HYDRAULIC LOSS
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
0 0,5 1 1,5 2 2,5 3 3,5 4 4,5
HERCULES ECO 10
HERCULES ECO 5
Q
[dm
3.
s
-1
]
p
z
[Pa]

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Specified fuel:
The pellets must comply at least with one of the standards or regulations as follows:
Regulation no.14-2000 MŽP ČR
DIN 517 31
ÖNORM M 7135
Prescribed pellets granularity: between 6 and 10 mm
Maximum fuel water content. 12%.
Ash content max. 1,5 %
WARNING! A poor quality of fuel can markedly negatively affect the boiler output and emission
parameters
Fig.no. 3 Boiler dimension
(dimensions behind the slash apply to VIADRUS HERCULES ECO 10)

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4. Boiler description
4.1 Boiler drum construction
The main boiler component is the cast iron sectional boiler drum made of grey cast iron according to
EN 1561.
• Central sections – quality 150 (previously ČSN 42 2415)
• Front and rear sections – quality 200 (previously ČSN 42 2420)
The boiler pressure components comply with strength requirements according to EN 303-5.
The boiler drum consists of cast iron sections by means of forced on boiler insertions and is secured with
anchor bolts. The sections create a combustion chamber and the ash pan space, the water space and the
convection section. The ash pan space is divided from the combustion chamber through a solid water-cooled
grate.
Between the combustion chamber and the convection part of heat exchanger there are installed the ceramic
plates that regulate combustion and influence positively the emission values.
In the flue gases ducts of the heat exchanger convection part there are inserted the turbulators in order to
reduce the flue gases temperature thus to increase the boiler efficiency.
The boiler rear section has in its upper part a smoke adapter and heating water flange (G 1 1/2“), then in
lower part the return water flange (G 1 1/2“) with a sleeve piece for filling and discharging cocks (G 1/2“). To
the front section there are mounted the stoking and ash pan doors; the combustion chamber door is behind
them.
The whole boiler drum is insulated by using a health harmless mineral insulation which reduces the heat
interchange losses in surroundings. The steel boiler shell is treated by applying a good quality powder paint.
Fig.no. 4 Cast iron boiler drum
1. Front section
2. Middle section
3. Rest section
4. Anchor bolt
5. Stoking door
6. Ash pan door
7. Smoke extension

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4.2 Construction of combustion chamber and fuel transport lines
The combustion chamber consists of a longitudinal concave drum made of heat-resisting steel to which there
joins askew from below the piping for fuel supply with a screw conveyer for the combustion chamber. This
conveyer is also connected with pellets reservoir through another height offset (mismatch) screw conveyer
which is equipped with regulators functioning in dependence on discharging the combustion chamber
conveyer. The combustion chamber concave drum which is interconnected with forced air supply is equipped
with a system of slots in the side walls and in the bottom for the purpose of primary air supply.
Thanks to a convenient combustion chamber disposition the combustion chamber functional space doesn’t
get clogged with the combusted material. This after combustion is continually and mechanically expelled by
the fresh fuel supply. The unburnt fuel will not become clinkered neither will it become attached to
combustion chamber walls. The combustion is safe. Thanks to the regulated fuel supply and the screw
conveyer height offset (mismatch) there is excluded the fuel transport lines fire penetration.
The combustion chamber screw conveyer and the fuel reservoir screw conveyer are mutually interconnected
through a flex hose.
Combustion chamber is from above covered by a ceramic arch which directs the flames to the secondary air
inlets. This results in a better combustion with a significant reduction in light ash particles.
4.3 Control, regulation and safety elements
The boiler regulator serves for an automatic control of boiler activities and elements. It processes the input
data from the sensors and external control elements (see chap.8.1) and according to parameters set by the
manufacturer or user it controls automatically the boiler activity in required regimes.
The regulator also enables to operate the boiler manually which can be advantageously used to at boiler
commissioning.
A high variability in setting the limit and operating parameters makes it possible for both the manufacturer and
user to use fully and effectively the characteristics of automatic boilers for pellets it means an economical
boiler operation, controlled combustion process thus the toxicants content in flue gases minimization.
Emergency thermostat is installed in the regulator box and its function is to protect the heating system
against overheating. The manufacturer set it on 95 °C, it means the temperature higher than it can be set as
the required temperature at the boiler. In case that the emergency thermostat was switched off (the red
control lamp on regulator is on) the unblocking process must be done manually.
In case that the emergency thermostat was switched off repeatedly the boiler must be shut down and the
reason for repeated boiler overheating must be found out.
Programmable regulator - digital programmable indoor device (like HONEYWELL CM 27) intended for
automatic heating regulation in cottages and flats.
- 7-day heating time programme
- 6 time sections during a day with individual temperature, setting range 5 – 30 °C with 0,5 °C step
- programmable antifreeze protection for the season when the building isn’t used
- information about the real and required temperature in the room
ATTENTION! For boiler control there can only be used the free potential-free contact, switching
voltage is 5 V DC.
Thermomanometer serves for determination of heating water output temperature and its pressure in heating
system and it is installed in the upper part of boiler shells. The clack valve and the reservoir for
thermomanometer connection are situated in the upper part of rear boiler section.
Forced-draught fan for combustion air is mounted directly in combustion chamber body. The combustion air
volume is regulated by a throttling flap. The flue gases flow from the boiler to the chimney can be reduced by
a smoke flap. This is controlled by a handle with a tow bar in the upper left part of boiler drum next to the
stoking door.
The air rose of stoking door cannot be used at boiler with automatic combustion of wooden pellets and it
must be permanently closed.
Cleaning cover of the smoke adapter positioned in its lower part serves for flue gases ways cleaning.

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1. The boiler body with armature
2. Turbulators
3. Ceramic plates
4. Burner
5. Fan
6. Sealing pr. 90x60x3
7. Flange of heating water
8. Flange of return water
9. Cock for filling and emptying G 1/2“
10. Side panel of the shell
11. Side panel of the shell
12. Sticker for alarm of smoke damper
13. Rod
14. Upper panel of the shell
15. Thermomanometr
16. Controller RKU
17. Partition of combustion chamber
18. Partition of smoke channel
19. Gripping of partitions
Fig.no. 5a) Boiler VIADRUS HERCULES ECO 5

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1. The boiler body with armature
2. Turbulators
3. Ceramic plates
4. Burner
5. Fan
6. Sealing pr. 90x60x3
7. Flange of heating water
8. Flange of return water
9. Cock for filling and emptying G 1/2“
10. Side panel of the shell
11. Side panel of the shell
12. Sticker for alarm of smoke damper
13. Rod
14. Upper panel of the shell
15. Thermomanometr
16. Controller RKU
17. Partition of combustion chamber
18. Partition of smoke channel
19. Plate for ashes on the sheet metal
20. Screw M6 x 25
21. Nut M6
Fig.no. 5b) Boiler VIADRUS HERCULES ECO 10

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Fig. No. 5c) Insulation of stoking door and ash pan door
4.4 Boiler outfit and accessories
A) Standard boiler outfit:
the boiler drum including fittings 1 pc
shell side section incl. insulation 2 pcs
shell upper section incl. insulation 1 pc
ash pan drawer 1 pc
ceramic plate central 1 pcs / 3 pcs
ceramic plate central with a riser 0 pc / 3 pcs
ceramic plate outer 1 pc / 1 pc
ceramic plate frontal 1 pc
turbulator 4 pcs
partition of smoke channel 2 pcs
tow bar of smoke flap control mechanism 1 pc
burner incl. worm shaft, elbow pipe and adapter 1 pc
combustion chamber ceramic arch 1 pc
fuel feeder incl. a transport hose and strapping tapes 1 pc
regulator 1 pc
forced draught fan with a cover incl. throttling of the fan 1 pc
brush butt-end 1 pc
manual for boiler operation and installation 1 pc
manufacturing plate 1 pc
package (see point B) 1 pc
• fuel reservoir 725 l
fuel reservoir side 3 pcs
fuel reservoir side with an opening for screw 1 pc
fuel reservoir leg 4 pcs
fuel reservoir bottom 2 pcs
fuel reservoir bottom A 2 pcs
fuel reservoir cover 1 pc
handle 1 pc
bolt M6 x 12 72 pcs
nut M6 72 pcs
bolt M6 x 16 2 pcs
1. Stoking door
2. Insulation of stoking door upper
3. Insulation of stoking door lower
4. Ash pan door
5. Insulation of ash pan door upper
6. Insulation of ash pan door lower
•Stick door insulation by
boiler sealant.

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washer 8,4 2 pcs
pendant chainlet 1 pc
Notes:
1.) Number of pieces behind the slash apply to VIADRUS HERCULES ECO 10.
2.) The tow bar of smoke flap control mechanism includes:
- Control mechanism lever
- 2 pc washers 10,5
- 1 pc pins Ø 3 x 26 mm (for the lever mounting)
B) Accessories in the package:
plug blind 6/4” 1 pcs
sealing Ø 60x48x2 mm 2 pcs
bakelite ball for draw bar 1 pc
split pin 2,5 x 32 1 pc
label for smoke flap signalling 1 pc
thermomanometer 1 pc
logo VIADRUS 1 pc
SK strip Ø 70 - 90 2 pcs
heating water flange G 1 1/2" 1 pc
return water flange G 1 1/2" 1 pc
sealing Ø 90x60x3 mm 2 pcs
elbow 1/2” 1 pc
filling and discharging cock 1/2“ 1 pc
partition of combustion chamber 2 pc
gripping of partitions 1 pc/0 pc
plate for ashes on the sheet metal 0 pc/1 pc
insulation of stoking door upper 1 pc
insulation of stoking door lower 1 pc
insulation of ash pan door upper 1 pc
insulation of ash pan door lower 1 pc
adapter (reduction) 1 pc
brush 1 pc
tip of the spike 1 pc
dowel 8 mm 2 pcs
clinch straight threaded 5 x 60 1 pc
flexo 3C x 0,75, L = 4,5 m 1 pc
cable CMSM 3C x 0,75, L=1,8m 2 pcs
cable CMSM 3C x 0,75, L=2m 1 pc
bushing PG 9 6 pcs
bushing HEYCO SB - 625-8 2 pcs
dummy plug 15,9 2 pcs
capillary spring 1 pc
cable holder self-adhesive 4 pcs
binding band – 160 mm 5 pcs
insulating girdle on the flat cup 3 pcs
nut M10 12 pcs
washer 10,5 8 pcs
pad10,5 (large) 4 pcs
bolt ST 4,8 x 13 4 pcs
bolt M6 x 12 4 pcs
spring washer 6,4 4 pcs
panel pin 4 pcs
serrated washer 5,3 4 pcs
nut M 5 4 pcs
bolt M6 x 25 2 pcs
nut M6 2 pcs
boiler cement 1 pc/2 pcs
C) Optional accessories:
•
digital indoor device (according to VIADRUS a.s. offer)
• u rear section shut
The optional boiler accessories are not included in boiler basic price.

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5. Positioning and installation
5.1 Rules and regulations
The solid fuels boiler can only be installed by a firm authorized to mount these equipments. A project
according to valid regulations must be prepared for installation. The heating system must be filled
with water that meets the requirements ČSN 07 7401 and especially its hardness must not exceed the
required parameters.
Recommended values
Hardness mmol/l 1
Ca
2+
mmol/l 0,3
total o Fe + Mn concentration mg/l (0,3)*
*) Recommended value
WARNING!!! The use of anti-freeze mixture is not recommended by the manufacturer.
a) to the heating system
ČSN 06 0310 Heating systems in buildings – Designing and installation
ČSN 06 0830 Heating systems in buildings – protecting device
ČSN 07 7401 Water and steam for thermal energy equipments with working pressure
up to 8 MPa.
EN 303-5 Boilers for central heating – Part 5: Solid fuel boilers for central heating with
manual or automatic feed and max. 500 kW nominal thermal output:
terminology, requirements, testing and marking.
b) to the chimney
ČSN 73 4201 Chimneys and flue gas ducting– designing, implementation and connection of
fuel consumers.
c) regarding the fire regulations
ČSN 06 1008 Fire safety of heat installations.
EN 13501-1 +A1 Fire classification of construction products and building elements – Part 1:
Classification using test data from reaction to fire tests
d) to the system of HWS heating
ČSN 06 0320 Heating systems in buildings – Hot water preparation – Designing and planning
ČSN 06 0830 Heating systems in buildings – Safety devices.
ČSN 75 5409 Water installations inside buildings.
e) regarding the electric network
CSN 33 0165 Electrical regulations. Identification of conductors by colours or numerals.
Procedure provisions
ČSN 33 1500 Electrical regulations; revision of electrical equipments
ČSN 33 2000-1 ed. 2 Low-voltage electrical installations – Part 1: Fundamental principles,
assessment of general characteristics, definitions.
ČSN 33 2000-4-41 ed. 2 Low voltage electrical installations - Part 4- 41: Protection for safety -
Protection against electric shock
ČSN 33 2000-5-51 ed. 3 Electrical installations of buildings – Part 5-51: Selection and erection of
electrical equipment – Common rules
ČSN 33 2130 ed. 2 Low-voltage electrical installations – Internal electric distribution lines
ČSN 33 2180 Electrical regulations: Connection of electric instruments and appliances
ČSN 34 0350 ed. 2 Safety requirements for flexibile cords and cables
EN 60079-10-1 Explosive atmospheres — Part 10-1: Classification of areas — Explosive gas
atmospheres
EN 60079-14 ed.3 Explosive atmospheres - Part 14: Electrical installations design, selection and
erection
EN 60252-1 ed. 2 Capacitors for AC motors – Part 1: In general – Design, testing, dimensioning
– Safety requirements – Instructions for installation and operation.
EN 60 335-1 ed.2 Electric appliances for household and similar purposes – Safety – Part 1:
General requirements
EN 60 335-2-102 Electric appliances for household and similar purposes – Safety – Part 2-102:
Special demands on appliances containing the electric connections and
burning the gas, oil and solid fuels
EN 60445 ed. 4 Basic and safety principles for man-machine interface, marking and
identification – Identification of equipment terminals, conductor terminations
and conductors

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EN 61000-6-3 ed. 2 Electromagnetic compatibility (EMC) - Part 6-3: Generic standards – Emission
standard for residential, commercial and and light industrial environments
EN 61000-3-2 ed. 3 Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic
current emissions (equipment input current ≤16 A per phase)
EN 61000-3-3 ed. 2 (ed. 3) Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage
changes, voltage fluctuations and flicker in public low-voltage supply systems,
for equipment with rated current ≤16 A per phase and not subject to
conditional connection.
5.2 Positioning possibilities
Boiler positioning in the living space (including corridors) is prohibited!
The installation of the boiler must comply with all requirements of ČSN 06 1008.
Boilers positioning with regard to the fire regulations:
1. Positioning on the floor made of incombustible material (see Fig.6)
−install the boiler on the fireproof base material exceeding the boiler platform by 20 mm on the sides
and only in boiler drum depth.
−If the boiler is positioned in a cellar we recommend to install it on an under-plate (bedding) minimum
50 mm high; the boiler must be installed horizontally.
Fig. no. 6 Dimensions of a bedding under the boiler drum
(dimensions behind the slash apply to VIADRUS HERCULES ECO 10)
2. Safe distance from combustible materials
−when installing and operating the boiler it is necessary to keep a safety distance of 200 mm from the
materials of combustibility grade A1, A2, B and C (D);
−for easily combustible materials of combustibility grade E (F), which quickly burn and burn themselves
even after removal of ignition source (such as paper, cardboard, asphalt and tar paper, wood and
wood-fiber boards, plastics, floor coverings) the safe distance has to be doubled, i.e. to 400 mm;
−safe distance should be doubled as bulb where the grade of reaction to fire has not been proved.
Tab. no. 2 Grade of reaction to fire
Grade of reaction to fire Examples of building materials and products included in the reaction to fire
(Extract from EN 13501-1 + A1)
A1 – incombustible Granite, sandstone, concrete, bricks, ceramic tiles, mortars, fireproof plasters, …
A2 – combustible with difficulty
acumin, izumin, heraklit, lignos, boards and basalt felt, fibreglass boards,...
B– hardly combustible Beech and oak wood, hobrex boards, plywood, werzalit, umakart, sirkolit,...
C (D) – medium combustible Pinewood, larch, whitewood, chipboard and cork boards, rubber flooring,...
E (F) – easily combustible Asphaltboard, fibreboards, cellulose materials, polyurethane, polystyrene,
polyethylene, PVC,…

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Boilers positioning with regard to the necessary handling space:
• Basic setting AA5 / AB5 according ČSN 33 2000-1 ed. 2
• Minimum 2100 mm boiler room height (when the fuel reservoir cover is fully open)
Fig.no. 7 Positioning of boiler in boiler room
(dimension behind the slash applies to VIADRUS HERCULES ECO 10)
Boilers positioning with regard to the electricity network:
• Boiler must be installed in a way making sure that the plug in the socket (230 V/50 Hz) is always
accessible.
• Boiler is connected to the el. network through a wired in and movable cord terminated by a standardized
plug.
• Protection against electric shock must be provided according to valid EN (see chap.5.1.)
Fuel positioning:
• for a correct fuel combustion in boiler there must be used dry fuel (up to 12% moisture). We
recommend to store the pellets in their original package from manufacturer (PET bags) on a dry place.
• it is out of question to store the fuel behind the boiler or to store it next to boilers in a distance less than
400 mm
• the manufacturer recommends to keep min. 1 000 mm distance between boiler and fuel or to store fuel
in a room different from that where boiler is installed.
The room where boiler is installed must be provided with permanent air supply for combustion and
possibly with ventilation (the air consumption at VIADRUS HERCULES ECO 5 boilers is approx.
80 m
3
. h
-1
, (the air consumption at VIADRUS HERCULES ECO 10 boilers is approx. 160 m
3
. h
-1
).
The heating system piping connection must be done by a person authorized according to
regulations.
WARNING: At a boiler connected to the heating system there must be installed a discharge cock
at the lowest point and as close as possible to boiler.

16
5.3 Boiler hydraulic diagram
Legend of piping, signs and symbols in the diagrams:
Fig. no. 8 Recommended diagram of boiler connection to the heating system

17
6. Boilers assembly
6.1 Boiler drum installation
1. Set up the e boiler drum on the bedding (see Fig. no 6).
2. Insert the sealing ∅90 x 60 x 3 on the upper flanged part of the rear boiler section and bolt the flange of
heating water (see Fig. no 5) and connect the other end with the heating system.
3. Insert the sealing ∅90 x 60 x 3 on the bottom flanged part of the rear boiler section and bolt the flange of
return water with a sleeve for the filling and discharge cock (see Fig. no 5) and connect the other end with
the heating system. In order to guarantee the boiler protection against low-temperature corrosion we
recommend to install a thermostatic valve in heating system (like ESBE TV 40).
4. For boiler connection to the heating system there must be screwed an elbow with filling and discharge
cock in the return water flange sleeve.
5. Set the smoke pipe on the smoke adapter and insert it into chimney opening
6. Threaded hole Js 6/4 "in the front boiler section is blinded with a plug Js 6/4" with sealing ∅60 x 48 x 22.
7. By means of boiler putty are stuck 4 pieces of insulation according to Fig. no 5c into the stoking and ash
door.
Fig. no. 9 Connection dimensions at boiler

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6.2 Burner assembly
1. Spread the boiler cement on the flange of the fan and screw the fan to the air flange (7) by means
of 4 screws M6 x 12 (5) and spring washers (6).
2. Spread the boiler cement around the rectangular hole in the rear section and put the burner on 4 pieces
of stud bolts M10. Ensure the burner by means of nuts M10 (3) and washers 10.5 (2).
Fig.no.10 Burner assembly
1. Burner
2. Washer 10,5
3. Nut M10
4. Fan
5. Bolt M6 x 12
6. Spring washer 6,4
7. Air flange

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6.3 Assembly of combustion chamber
1. Through the stoking door insert the ceramic arch into the combustion chamber (Fig. no. 12) and mount it
on the fireplace with the open part forward (see Fig. no.13 and 14).
2. Insert through the stoking door by using a tool 2 pcs partitions of combustion chamber (see Fig. no. 13a
and 14a), so that they are in a vertical position at the level of head of the ceramic vault. In case of
VIADRUS HERCULES ECO 5 set up the partitions of combustion chamber (1) into the sheet metal for
gripping of partitions (3). In case of VIADRUS HERCULES ECO 10 insert the partitions of combustion
chamber (1) into the combustion chamber of boiler and mount the plate for ashes (3) on the sheet metal
by means of 2 screws M6 x 20 and nuts M6. The whole assembly is inserted up to the stop of ceramic
vault of burner.
3. Through the stoking door mount the ceramic plates into the combustion chamber on the side risers of the
sections (see Fig.13 a 14). For boiler there exist 4 types of ceramic plates (see tab. 3 a Fig. no. 11).
Mount the ceramic plates according to Fig. no. 13 and 14.
When mounting the ceramic plates is necessary to mind that the plates sit properly on the risers of the
sections and fit together with their locks. Possible leakage can be sealed by sealing cement with
resistance up to 1200 °C (like ZWALUW) or heat-resisting concrete.
4. Insert through the stoking door 2 pcs partitions of smoke channel (see Fig. no. 15).
5. Through the stoking door insert into the convection part of cast-iron heat exchanger (4 smokes channels)
4 pc turbulators (see Fig. no. 13a and 14a).
Fig. no. 11 Ceramic plate shape for VIADRUS HERCULES ECO 10
Tab. no. 3 Number of ceramic plates for individual sizes of boilers
Boilers size VIADRUS HERCULES ECO 5 VIADRUS HERCULES ECO 10
Ceramic plate central 1 3
Ceramic plate central with risers 0 3
Ceramic plate outer 1 1
Ceramic plate frontal 1 1
Fig.no. 12 Ceramic arch for VIADRUS HERCULES ECO 10
Ceramic plate
central
Ceramic
plate central
with risers
Ceramic plate
outer
Ceramic plate
frontal

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1. Ceramic plate frontal
2. Ceramic plate outer
3. Ceramic plate central
4. Ceramic arch
5. Burner
6. Partition of smoke channel
7. Partition of combustion chamber
Fig. no. 13 Ceramic plates and partition mounted in VIADRUS HERCULES ECO 5