Viadrus G 700 User manual

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MANUAL
for boiler operation and installation
VIADRUS G 700

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Dear customer
We thank you that you have bought the VIADRUS G 700 boiler thus having
shown your confidence in ŽDB a.s.Bohumín, VIADRUS Heating technology
Enterprise.
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 ). Please follow the undermentioned
information and Regulation no. 91/93 Coll. issued by Czech Office for Labour
safety in order to ensure the safety at work in low-pressure boiler rooms.
Thereby a long-time and trouble-free boiler operation will be guaranteed to
both your and our satisfaction.
VIADRUS G 700 boiler was approved to be operated in the Czech Republic by:
Engineering Testing Institute, State Testing Laboratory no.. 202, Brno
Certificate ES type verification according to ES 90/42/EHS reg. no. E-37-0715-03
Certificate ES type verification according to ES 90/396/EHS reg. no. E-37-0723-03
Certificate according to 73/23/EHS reg. no. E-37-0721-03
Certificate according to 73/23/EHS reg. . no. E-30-0724-03
Certificate according to89/336/EHS reg. no. E-37-0722-03
Certificate according to89/336/EHS reg. no. E-30-0725-03
Certificate no. B-30-0726-03
Table of Contents :

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1. Boiler use and advantages........................................................... 4
2. Boiler technical data............................................................… 5
3. Description ................................................................................ 6
3.1. Boiler construction ..........................................................…. 6
3.2. Electric wiring diagram ........................................… 10
4. Positioning and installation ............................................................12
4.1. Boiler positioning in a boiler room..........................................12
4.2. Regulations and guidelines ................................................... 13
5. Assembly procedure ……………………………………………….. 14
6. Commissioning …………………………………………….. 14
6.1. Verification activities before commissioning ……………. 14
6.2. Operation……………………………. 14
7. Boiler operation by user ………………………………………… 15
7.1 Regulation elements setting ……………………………….. 15
7.2. Electric panel …………………………………….. 15
8. Maintenance …………………………………………………………17
9. Instructions for product disposal after its service life ………………17
10. Guarantee and liability for defects ………………………………….18
Purchase order: Purchase order specification code
(type designation)
G 700 X X X X
Number of
sections:
10: 10 sections
11: 11 sections
12: 12 sections
13: 13 sections
14: 14 sections
15: 15 sections
Way of delivery:
S: composed
R: decomposed
Type of
regulation:
4: Electric
panel – basic design
6: Electric
panel – mounted
OS06
In the purchase order you must specify the data according to purchase order specification code
Type of burner:
0:without burner
1:with burner

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1. Boiler use and advantages
A single-row cast-iron sectional hot-water boiler with an overpressure combustion chamber and a
direct firing designed for gas (natural gas) and fluid fuels ( furnace oil extra light ) central heating . The
pressure burners used in combination with boiler must correspond to:
ČSN EN 676: 2000 – Gaseous fuels burners with a ventilator and an automatic control
ČSN EN 267: 2000 – Fluid fuels burners wit a ventilator
ČSN EN 303-1:1999 – Boiler pro central heating with burners + ventilator
ČSN EN 303-2:1999 – Boiler pro central heating burners + ventilator
ČSN EN 303-3:1999 – Boiler pro central heating burners + ventilator
The boiler is produced exclusively for low-pressure hot-water central heating systems with
maximum 90 °C heating water operating temperature (optionally up to 115°C), minimum 60°C heating water
operating temperature at maximum 4 bar operating overpressure .
The boiler drum is tested by 8 bar testing overpressure.
Boiler advantages are as follows:
1. Longstanding service life of cast-iron boiler drum
2. Highly economical operation. Combustion efficiency in the whole power series is higher than 91,5 % for all
sorts of fuel
3. Optionally a delivery incl. the burner
4. Modern design
5. Fully automatic two-stage operation
6. Boiler operation and defects signalling, possibly use of signals for transfer into a superior control system
7. Possibility to operate boiler through the superior automatics or a spatial temperature sensor
8. According to the boiler layout the closing plate can either open to the left-or the right hand side
9. Easily accessible sight glass and the probe for overpressure measuring in combustion chamber.
10. In combination with recommended burners (see chapter “Boiler technical parameters”) this boiler is
environmentally friendly because the whole power series combustion results meet the strict environmental
standards and regulations.

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2. Boiler technical data
Tab. č. 1 Boiler thermal-technical parameter boiler (fuel : natural gas H, furnace oil extra light)
Boiler size-number of sections ks 10 11 12 13 14 15
Nominal output kW 330 400 470 550 650 750
Reduced output kW According to the power range of particular type of burner
Input range kW 360 438 512 591 710 820
Efficiency min. % 91,5
temperature regulation range °C 60 – 90 (optionally 115)
Fuel consumption - natural gas H m3/h 36,1 43,9 51,4 60,2 71,1 82,3
- oil, furnace oil kg/h 30,2 36,8 43,1 50,5 58 65,5
Flue gases mass flow rate kg/s 0,088 0,10 0,12 0,135 0,156 0,180
flue gases temperature °C 165 - 190
flue gases temperature stage I. °C 130
flue gases way volume dm3610 676 742 808 874 940
Combustion chamber depth mm 1377 1527 1677 1827 1977 2127
Combustion chamber volume dm3314 347 381 414 447 480
Heat-delivery surface m2 21,35 23,8 26,26 28,7 31,14 33,58
Pressure loss on flue gases side mbar 0,9 1,4 2,2 3,2 5 6,2
Recommended chimney draught mbar min. 0,2
Boiler water volume l 252 277 302 327 352 377
Pressure loss on water side– dt =20 K mbar 0,9 1,35 1,9 2,6 3,34 4,2
- dt = 10 K mbar 3,4 3,9 5,3 8,6 12,4 16,7
Standby waste kW 0,89 0,95 1 1,06 1,11 1,16
Maximum operating overpressure bar 4
Dimensions - width mm 904
- height mm 1424
- depth L mm 1842 2142 2142 2442 2442 2592
Heat carrier connections φmm 100
Outlet neck diameter φmm 250 300
Flange for burner (part of boiler ) – H 70 mm 220
Connection dimensions for burner mm See in relevant type of burner documentation
boiler mass kg 1660 1815 1970 2125 2280 2430
Boiler size-number of sections pc 10 11 12 13 14 15
Recommended burners –
NATURAL GAS, BIOPLYN
INTERCAL SGN
77/2-350
SGN 77/2 SGN
88/2
BG 450 - 2
BG 450 - M
BG 550
– 2 (M)
BG 650 – 2 (M)
BENTONE
BG 450
LN
BG 550 LN BG 600
LN
BG 700 LN
WEISHAUPT WG 40 N/1-A G 5/1 – D (LN)
PBS TřebíčAPH-M 04 PZN,
PPN, PZ
APH-M 10 PZN,
PPN, PZ
DUNPHY TG05.100 HL
(MP)
Recommended burners - LIQUIDÉ
FUEL
INTERCAL (fa ESK Brno) SL 77/2 SL 88/2
CUENOD (fa ESK Brno) CUENOD
C. 100 H 201
BENTONE B 45 A2.2 B 55 - 2 B 65 - 2
WEISHAUPT WL 40 - A L3 Z-A

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The gas flow is specified at the gas temperature and 0 °C and 1013,25 mbar air pressure For a particular
temperature and pressure the real consumption is calculated as follows :
1013,25 . (273 + t)
V = VE . ----------------------------------------
p . 273
V - gas volume at a given pressure and temperature
VE - gas volume at 0°C and 1013,25 mbar
t - gas temperature (°C)
p - absolute gas pressure (mbar)
273 - absolute temperature (K)
3. Description
3.1.Boiler construction
The boiler drum (see Fig. no. 1 – individual positions) consists of sections by means of forced on
insertions and secured by anchor bolts. The boiler has three-draught construction and the combustion chamber
and the convective part are created by sections; the boiler water space is inside. The boiler tightness is
guaranteed by the packing cord inserted in a groove on four sides of individual sections and the combustion
chamber plus the silicon sealant deposited in grooves at the point of sections joint after boiler drum constriction.
On the frontal section is there is mounted closing plate with insulation which can open either to the left
or to the right hand side. This must correspond with hinges and closures position. The flange for burner is a part
of closing plate. On the flange there is placed a sight glass with a probe for measuring the overpressure in
combustion chamber.
The opening φ126 mm in the upper part of the frontal section is closed by a flange with boring 3 x G 1/2“ for
the reservoir of thermostat, safety thermostat and thermometer and the reverse valve of manometer. In the
lower part of the frontal section there is an opening φ126 closed by a blank flange.
Input and output of heat carrier are situated on the rear section and is carried out by means of flanges with
a sleeve DN 100 and intermediate flanges DN 100. On the lower sleeve there is the discharge cock G 3/4“.
The restricting insertion belongs to the flange with the sleeve for heat carrier input. In the riser above the lower
flange with a sleeve there is positioned the outside protective clamp of boiler. In the upper and lower parts of
the rear section there are four small covers for cleaning.
Flue gases are carried away from boiler through the outlet neck positioned on the flue collector. Under the
outlet neck there is the explosive flap with a holder. On the outlet neck there are the measurement points for
temperature and flue gases analysis. .
The boiler drum is perfectly insulated by the mineral wool plates 100 mm thick. The steel shell of boiler
is suspended on two consoles of the shell positioned next to upper anchor bolts. The surface is treated by
comaxit paint. In the frontal part of boiler there is installed the electric panel in which there are installed the
switching, regulation and safety elements and the wiring block.

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Fig.no.1 Boiler assembly

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1. frontal section
2. insertion
3. central section
4. rear section collector
5. flue gases
6. small cover for cleaning
7. sealing cord
8. explosive flap
9. closure
10. closing plate with insulation
11. hinge
12. flange for burner with
insulation
13. sight glass with measuring
probe
14. flange 170x170 with boring
3x G1/2“
15. el. box console
16. flange 170x170
17. distribution pipe with a sleeve
18. return water flange
19. intermediate flange
20. heating water flange
21. anchor bolt
22. console of shell
23. connecting console
24. side part of shell frontal left
25. side part of shell frontal right
26. side part of shell
27. side part of shell rear
28. frontal part of shell segment 2 right
29. frontal part of shell segment 2 left
30. upper part of shell frontal
31. upper part of shell rear
32. upper part of shell
33. rear part of shell upper, lower
34. rear part of shell central
35.discharge cock
36. thermomanometer clack-valve
37. reservoirs of thermostats and
thermostat capillary
38. blind flange big
39. blind flange with
thermomanometer
40. network module
41. frontal cover of the shell
42. electric panel cover
43. frontal part of shell right
44. service clock ( hours?)

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4.2. Electric wiring diagrams
Fig.no.2 Electric panel wiring diagram

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Legend to Fig.no.2:
F1 fuse 6,3A
S1 main switch
H1 boiler under voltage signalling
Z1 suppression component
BT1 safety thermostat
PS1 water pressure manostat
H2 safety thermostat signalling
K1 external control relay
BT2 service thermostat
X 10 burner connector
H3 burner defect signalling
H4 burner stage 2 operation
signalling
MPH1 burner stage 1 service hours
meter
MPH2 burner stage 2 service hours
meter
BT3 burner stage 2 thermostat
X20 burner connector
NOTE:
Water pressure manostat (PS1) only in design for
MORA firm, in case it isn’t used connect the
conductor BT1:1from terminal X1:8 to terminal
X1:9. The outside control relay24VAC(K1)only in
design for SLANT/FIN. firm.
in case it isn’t used connect the conductor
X10:T1:1from terminal X1:12 to terminal X1:13.
Conductor colour:
GNYE green- yellow
BK black
RD red
WIRING DIAGRAM- BASIC DESIGN

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Fig.no.3 Electric panel wiring diagram

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4. Positioning and installation
4.1. Boiler positioning in boiler room
The boiler is designed to be positioned in closed rooms with low or medium aggressiveness in view of
electrical regulations in an ordinary environment (ČSN 33 2000 – 7 – 701:1997). It is suitable for installation in
rooms separated from the housing premises (Regulation 91/93 Coll., ČSN 07 0703:1986 Gas boiler rooms).
The boiler noise level does not exceed the maximum level LA= 85 dB(A) (the real value depends
on the type of used burner : for recommended types it ranges between 60 and 70 dB).
The boiler must be installed on an incombustible base or a bedding 50 mm high. In front of the boiler
there must be left a free handling space minimum up to the boiler depth + 500 mm, from one side 600 mm (
access to the back ), rear access 800mm and 500 mm between two boilers.
When installing the boiler we must consider the layout requirements of selected type of burner (gas
supply etc.) In the next figure the distance L in front of boiler is specified in case that the boiler is
cleaned by a mechanical brush. If the chemical cleaning is used for maintenance the distance depends on
the type of used burner.
Fig.no.4 Boiler positioning in a boiler room
Legend: It is necessary to respect the layout requirements of selected type of burner( gas supply etc.)
Filling the heating system with water.. The heating system must be thoroughly rinsed out in order to wash out
all impurities that might be deposited in distribution system or in heating elements and subsequently can cause

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the pump damage. Water for boiler and heating system filling must be clear and colourless , with no suspended
materials, oil and aggressive chemicals. Parameters of circulating and refilling water must correspond with
standard as follows :
Tab. č. 3 The maximum permissible values of heating water according to e ČSN 07 7401:1992
hardness (mmol/l) 1
Ca2+ (mmol/l) 0,3
total Fe + Mn concentration (mg/l) 3*
*recommended value
In case that the water hardness doesn’t comply with standard it must be treated. Even heating the water with
a higher hardness several times does not prevent the soils from getting precipitated on the boiler drum walls.
Precipitation of 1 mm calcite reduces at a given point the heat transfer from the metal to water by 10%.
During the heating season the heating water volume in heating system must be kept constant and it has to be
prevented from air intake. Water from boiler and heating system must never be discharged or taken for usage
except for the emergency cases like repairs etc. Water discharge and filling with new water increases the danger
of corrosion and scale development.
In case we have to refill the heating system with water we only refill a cold boiler in order to prevent the
boiler sections from disruption.
4.2. Regulations and guidelines
The boiler can only be installed and maintained by special contractual service firm holding a valid IPB
and ITI authorization to do the installations that is regularly retrained by the manufacturer. A project
according to the valid regulations must be prepared for installation.
a ) regarding the heating system
ČSN 06 0310 : 1983 Central heating , design and assembly
ČSN 06 0830 : 1996 Safety devices for central heating and TUV( hot service water) heating
ČSN 07 7401 : 1992 Water and steam for thermal energy equipments with steam service pressure up to 8 MPa
b ) regarding the gas distribution
ČSN EN 1775 : 1999 – Gas supply–Pipelines in buildings–Maximum service overpressure less than 5 bar.
ČSN 38 6413 : 1990 – Gas conduits and connections with low and medium pressure
ČSN 07 0703 : 1986 – Gas boiler rooms.
ČSN 38 6405 : 1988 – Gas equipments . Operation principles .
ČSN 38 6420 : 1983 – Industrial gas conduits.
Act no. . 222/94 Coll. on business conditions and state administration in energy branches and on state
energetic inspection .
Regulation 91/93 Coll. issued by Czech Labour safety Office on work safety provision in low-pressure
boiler rooms.
c ) regarding liquid fuel distribution
ČSN 65 0201:1992 – Flammable liquids . Facilities and storerooms.
Reg. MV ČR č. 35/77 on fire safety at heating oil storage and use
PO 1410/65 z 1. 3. 1966 – interim instruction for heating with heating oil and furnace oil in view of fire
protection
d) regarding the electricity network
ČSN 33 2180 : 1980 Connection of electricity devices and appliances.
ČSN 33 2000-3 : 1995 Electrical regulations. El. equipment. Part 3 : Basic characteristics definition.
ČSN 33 2000-7-701:1997 Electrical regulations. El. equipment. Part 7 : Single-purpose equipments and in special
buildings.
ČSN 33 2130 : 1985 Electrical regulations. Internal electric wiring.
ČSN IEC 446 : 1989 Electrical regulations. Conductors marking with colours or numerals. Implementing
regulations.
ČSN 33 0165 : 1992 Electrical regulations. Conductors marking with colours or numerals. Implementing
regulations.
ČSN 33 2350 : 1983 Regulations for electric equipment under difficult climatic conditions .
ČSN 34 0350 : 1965 Electrical regulations. Regulations for movable connections and cord conducts .
ČSN 33 1500 : 1991 Electric equipment revisions
ČSN EN 60 335- 1 : 1997 Safety of el. appliances for household and similar purposes. Part 1- general requirements
If the selected burner has not its main switch it is necessary according to ČSN 07 5801:1990 – Gas fuels
burners – to install the main switch within the grasp of burner . The supply must be secured according to burner
manufacturer ´s instructions.

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e ) regarding the chimney
ČSN 06 1610 : 1985 Elements of household appliances smoke flues.
ČSN 73 4201 : 2002 Chimneys and smoke flues design.
The connection must be approved by a chimneyers ´ firm and must meet all provisions of these standards.
The chimney must resist the flue gases condensate, otherwise in can be seriously damaged.
f ) regarding the fire regulations
ČSN 06 1008 : 1997 Thermal equipments fire safety.
ČSN 73 0823 : 1984 Materials fire-technical properties Building materials flammability degrees
On view of safety when installing the boilers it is necessary to keep a safe 200 mm distance from combustible
materials. For easily flammable materials which burn quickly and by themselves also after the ignition source
removal ( like paper, millboard, stiff paper, asphalt and tar boards, wood and fibreboards, plastics, flooring
materials) the safe distance is doubled. The safe distance is to be doubled also in case that the combustibility
degree of a building material wasn’t proved.
Tab.no.4 Combustibility degrees of building materials and products
Combustibility degrees of
building materials and
products
Building materials and products ranked in combustibility degrees i
(extract from ČSN 73 0823 : 1984)
A – incombustible Granite, sandstone, concretes, bricks, ceramic tiles, mortars fireproof plasters,… …...
B – hardly combustible acumin, izumin, heraklit, lignos, boards and basalt felt , fibreglass boards ,…..
C1– combustible with
difficulties Beech and oak wood, hobrex boards, plywood, werzalit, umakart, sirkolit,….
C2– medium combustible Pinewood, larch, whitewood, chipboard and cork boards, rubber flooring …...
C3– easily combustible Asphalt board, fibreboards, cellulose materials, polyurethane, polystyrene, polyethylene, PVC,
….
In case that it has occurred the danger of combustible vapours or gases development and their penetration into
the boiler room or at works with temporarily developed fire or explosion danger (flooring gluing works, painting
works using the flammable paints, etc.), boiler must be shut down long enough before the works start by pulling
the supply cord out of the socket or switching off the main switch of the burner.
Warning:
Don’t put any objects made of flammable materials on boiler and within a distance smaller than the safe
distance from the boiler.
5. Assembly procedure
The assembly procedure is described in „ VIADRUS G 700 boiler assembly manual “.
6.Commisioning
The boiler commissioning, heat output setting and any interference with boiler electric part or
connection of additional control elements can only be done by a contractual service organization
authorized to do the service works and a firm authorized to service the burner being operated.
1. Installation and assembly of the burner, its adjustment and boiler putting into operation together with burner
must be done by burner supplier ´s the service firm. This service firm will give a training to the user
regarding the operation, provide him with burner operation manual and will ensure the guarantee and after-
guarantee repairs.
2. Make a registration in Revision book before the boiler commissioning.

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6.1.Verification activities befor commissioning
Before the boiler commissioning it is necessary to check and bring into a correct status :
-water volume in system according to manometer
-open all slide valves and valves between the boiler and heating system
-correct burner mounting and its connection to electricity network (we recommend to have the box main
switch in “0” position before we connect the supply cord with network )
-fuel supply opening
-regulation and safety elements setting
6.2. Operation
The boiler can be operated with both gaseous and liquid fuels and with burners tested and approved by
Engineering Testing Institute Brno. Recommended types of burners - see chap. No. 3 – VIADRUS G 700 boiler
technical data .
The boiler operation itself is controlled by the burner automatics and setting of individual regulation
elements. The boiler operation in individual stages is signalled by pilot lamps on electric panel.
7. Boiler operation by user
7.1. Setting of regulation elements.
Setting of temperature stage I. (reduced output) to 50 - 90°C range (optionally 50 - 115°C)
Setting of temperature stage II. (nominal output) to 50 - 90°C range (optionally 50 - 115°C)
in low-temperature regime the heating water temperature is set to 50 - 75 °C range.
safety thermostat is permanently set to 100°C by manufacturer (optionally to 120°C).
In case of switching off – defect signalling is alight on electric panel – it is necessary ( after having found
out the reason and possible defect elimination) to bring the thermostat into its on-state position by pressing the
button on the rear box panel.
The required chimney draught is min. 0,2 mbar. A probe positioned on sight-glass body serves for
overpressure measuring in combustion chamber.
7.2. Electric panel – basic design
The electric panel consists of basic parts as follows :
-electric panel itself with network module
-capillary manometer
-capillary thermometer
-service thermostat stage I.
Main switch
Blind flange
Service
thermostat
stage I.
Safety
thermostat
thermomanomete
r
Service hours meter stage I. and II.
Fuse10 A Blind flanges
Burner defect
signalling
Exceeded heating
water temperature
signalling
Service thermostat sta
g
e II.

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-service thermostat stage II.
-Safety thermostat
-Service hours meters stage I. and II.
-burner operation stage I. and II. pilot lamps
-"defect" pilot lamp - safety thermostat switching on
-connecting terminal board
„In case you require an equithermal regulation- OS 06 mounted in electric panel -
Manual for operation and installation belongs to the delivery“.
IMPORTANT WARNINGS :
1. The boiler works automatically after its start up. It only can be operated by adults familiar with this manual
and the burner operation manual.
2. The boiler must be operated according to manual and related standards.
3. Combustion air must not contain a high moisture and dust content. If it is impossible to prevent moisture
and dust in environment where the boiler is installed, then the combustion air must be brought to the
boiler room directly from outdoor environment.
4. The boiler room must be kept clean and dustless. All sources of pollution must be removed from the
boiler room and during the works producing dust (insulating works, boiler room cleaning), the boiler
must be put out of operation. Even a partial dust deposit on burner will deteriorate the combustion
process , jeopardize an economical and reliable boiler operation.
5. In order to prevent boiler from dewiness followed by low-temperature corrosion in situations where the
boiler is operated at lower temperatures for a longer time (transition periods, heating system with a
large volume of heating water, low- temperature regime etc. ) it is necessary to ensure that the return
water temperature does not drop below 50 °C. Creation of boiler own circuit is the best solution.
6. Burner stage I. adjustment (reduced output) must be done with regard to flue gases temperature
which shouldn’t be lower than 130°C.
7. Water from boiler and heating system must never be discharged or taken for usage except for the
emergency cases like repairs etc. Water discharge and filling with new water increases the danger of
corrosion and scale development.
In case we have to refill the heating system with water we only refill a cold boiler in order to prevent
the boiler sections from disruption.
8. In case of boiler failure state the burner defect pilot lamp in boiler electric panel is alight. In case of
electricity outage the burner is switched off and will start automatically after voltage recovery in el.
network.
9. The burners operation defects are described in detail in burners operation manual including the ways
of their elimination and they have to be followed.
10. In case of a long-term boiler shutdown is put it must be disconnected from el. network.
11. In case that it has occurred the danger of combustible vapours or gases development and their
penetration into the boiler room or at works with temporarily developed fire or explosion danger (flooring
gluing works, painting works using the flammable paints, etc.), boiler must be shut down long enough before
the works start.
12. Don’t put any objects made of flammable materials on boiler and within a distance smaller than the
safe distance from the boiler.
13. The user is obliged to have the commissioning, regular maintenance and defects elimination done by
professional contractual service accredited by ŽDB a.s. Bohumín, Závod topenářské techniky VIADRUS, the
boiler manufacturer , otherwise the guarantee for boiler proper function is void. „ VIADRUS G 700“ boiler
quality and completeness certificate” after having been filled by contractual service organization serves as the
“Guarantee certificate”.
14. Once a year a regular maintenance must be done on boiler according to the next chapter.
When these terms are not observed the guarantee repairs cannot be demanded.
The list of contractual service organizations is enclosed separately.
8. Maintenance
If the burner is properly adjusted the flue gases generated by gaseous and liquid fuels don’t cause clogging
of convection furnaces but after the heating season the sediments must be removed from the boiler in order to
maintain its efficiency.

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All skilled interventions can only be done by a professional contractual service organization trained by
the manufacturer.
Before the cleaning works you must disconnected the boiler from el. network and the burner from fuel
supply, open the closing plate with burner, which makes the combustion chamber and convection parts
chambers accessible for cleaning. By using the brush remove the impurities from heat transfer surfaces. For a
proper cleaning of vertical draughts between the rear and central sections you must dismount 4 small covers for
the purpose of cleaning. This you can do after you have removed the upper and lower part of the rear shell. The
remains after cleaning must be removed from combustion chamber space, from exhaust neck and flue gases
collector- this after you have dismounted the holder with explosive flap (you must not handle the explosive flap
and springs).
After cleaning you must close all small covers, closing plate, burner plate with burner, mount the
holder with explosive flap and check them for tightness.
9. Instructions for product disposal after its service life
Because the product is made of common metal materials its individual components are recommended to be
disposed of as follows:
- the exchanger (grey cast-iron) through a firm dealing with waste collection and disposal
- piping, shell through a firm dealing with waste collection and disposal
- other metal parts through a firm dealing with waste collection and disposal
- ROTAFLEX insulation material - into the common waste
The boiler package should be disposed of in following way:
-plastic foil, cardboard package and wooden pallet into the common waste
-metal strap (for strapping) - through a firm dealing with waste collection and disposal
In case that the product has lost its serviceability you can advantage of product “take back service” ( if
this is established); in case that the originator has declared that it is a scrap it must be handled
according to the valid legislation of relevant country.
10. Guarantee and liability for defects

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Závod topenářské techniky VIADRUS (VIADRUS Heating technology enterprise )provides the
guarantee :
–for boilers during 24 months after the date when product was sold the end user
–for the boiler drum during 5 years after the date of dispatch from the manufacturer
The manufacturer requires for guarantee applicability :
–In sense of Act no. 222/94 Coll.„On business conditions and government administration in certified
branches and on State electricity inspection “, regulation no. 91/1993 Coll. issued by “Czech Office
for labour safety for ensuring the labour safety in low-pressure boiler rooms” and ČSN 38 6405,
ČSN EN 1775 to check the boiler regularly once a year. The checks can only be done by an authorized
organization (contractual service), accredited by ŽDB a.s. Bohumín, Závod topenářské techniky
VIADRUS and the manufacturer of the burner being operated.
–To document all records about carried out guarantee and after-guarantee repairs and regular annual
checkups in the annex enclosed to this guarantee certificate which belongs to boiler revision book.
The guarantee does not apply to the :
-defects caused by a faulty assembly and wrong product service
-products damaged during transport or in other mechanical way
- defects caused by an inconvenient way of storing
Every defect must be announced immediately after having been found out and always in writing .
If the above instructions are not observed then the manufacturer will not provide the warranties.
The manufacturer reserves the right to make changes within the product innovations that needn’t be
included in this manual.