Metal-Fach SEG BIO 14 Installation guide

ENGLISH
TRANSLATION OF THE ORIGINAL MANUAL
ISSUE I 2018/04/01
SEG BIO
OPERATION AND MAINTENANCE DOCUMENTATION

1
INTRODUCTION
Dear User, Thank you for choosing the heating boiler from Metal-Fach. We hope that the device will meet your requirements and bring much satisfaction. The heating boiler was designed and
manufactured according to the most important, current norms and standards, guaranteeing safety and dependable use. Using the device in accordance with the provided manual ensures effective and
dependable operation.
The boiler is not meant to be operated by persons of lowered mental or physical independence or by persons with no experience or limited knowledge about the product if they are not supervised or
instructed by the person responsible for their safety. Operation by children is prohibited.

2
Table of Contents
1. Initial activities .............................................................................................................................3
2. Applied symbols ..........................................................................................................................3
3. Definitions of terms in the manual ...........................................................................................3
4. General information ...................................................................................................................3
5. Boiler equipment ........................................................................................................................4
6. Use................................................................................................................................................4
7. Basic elements of the boiler.......................................................................................................5
8. Basic elements of the boiler SEG BIO 50 ..................................................................................6
9. Podstawowe elementy budowy kotłów SEG BIO 75-100 ........................................................7
10. Basic dimentions of the boiler SEG BIO....................................................................................8
11. Technical specifications SEG BIO.............................................................................................10
12. Control and safety.....................................................................................................................11
13. Fuel .............................................................................................................................................11
14. Requirements for the boiler room and boiler installation....................................................11
15. Boiler installation ......................................................................................................................12
16. Connecting the boiler to the heating system .........................................................................13
17. Connection of boiler to heating installation in closed-loop system (additional option)....16
18. Requirements for the expansion vessel .................................................................................17
19. Connecting the boiler to the power supply............................................................................17
20. Connecting the boiler to the chimney.....................................................................................20
21. Boiler start-up............................................................................................................................20
22. Recommended boiler power settings.....................................................................................24
23. Tips when using the boiler .......................................................................................................25
24. Boiler maintenece and cleaning ..............................................................................................25
25. Istruction for utilising the boiler ..............................................................................................25
26. Spare parts list...........................................................................................................................25
27. Possible faults and malfunctions.............................................................................................26
28. Trough burner manual .............................................................................................................31
29. Installation and replacing the overload clutch arrester ........................................................31
30. Burner design............................................................................................................................31
31. Operating requirements...........................................................................................................33
32. Installing the feeder in the boiler and start-up ......................................................................33
33. Installation and replacing the overload clutch arrester ........................................................33
34. Feeder operations.....................................................................................................................35
35. Feeder operation manual.........................................................................................................35
36. Feeder mantenance..................................................................................................................35
37. Replacing the ignition ...............................................................................................................35
38. Disposal of trough burner after its lifespan ...........................................................................36
39. Possible trough operation diturbances ..................................................................................37
Warranty conditions ................................................................................................................... 38
Confirmation of performance of inspection, guarantee repair, maintenance service:............. 40
Conformity declaration WE/UE.................................................................................................. 43
Warranty Card for the steel boilers, central heating water boilers........................................... 45
Warranty claim ........................................................................................................................... 47
Start-up report............................................................................................................................ 49
List of tables
Tab. 5.1 Boiler equipment ................................................................................................................... 4
Tab. 10.1 Boiler dimentions (mm) SEG BIO........................................................................................ 9
Tab. 11.1 Technical specifications SEG BIO...................................................................................... 10
Tab. 15.1 Flammability of construction products:........................................................................... 13
Tab. 16.1 Symbols applied in the schematics.................................................................................. 14
Tab. 16.2 Symbols applied in the schematics.................................................................................. 14
Tab. 17.1 Examples of devices enabling heating systems protection........................................... 16
Tab. 22.1 Suggested settings of GOLD and PLATINUM controller for work ................................. 24
Tab. 26.1 Spare parts ......................................................................................................................... 25
Tab. 39.1 Possible trough burner faults ........................................................................................... 37
Description of schematics
Schematic 1.1 Serial plate.................................................................................................................... 3
Schematic 7.1 Basic elements of the boiler SEG BIO 14-38 kW ....................................................... 5
Schematic 8.1 Basic elements of the boiler SEG BIO 50................................................................... 6
Schematic 9.1 Basic elements of the boiler SEG BIO 75 –100......................................................... 7
Schematic 10.1 Boiler dimentions SEG BIO ....................................................................................... 8
Schematic 14.1 Minimal requirements for the boiler room........................................................... 12
Schematic 16.1 Connecting the boiler to the heating system diagram ........................................ 14
Schematic 16.2 Connecting boilers to the heating system diagram ............................................. 14
Schematic 16.3 Connecting the boiler to the heating system........................................................ 15
Schematic 16.4 Connecting the boiler to the heating system with Laddomat and buffer.......... 15
Schematic 17.1 Safety schematics of the boiler with the cooling coil and thermal protection .. 16
Schematic 17.2 BVTS Valve ................................................................................................................ 17
Schematic 19.1 Electrical schematics for connecting the boiler–controller GOLD II and
PLATINUM. ............................................................................................................ 18
Schematic 19.2 Electrical schematics for connecting the boiler –additional B MODULE. .......... 19
Schematic 21.1 Automatic boiler start-up; PLATINUM controller:................................................. 20
Schematic 30.1 Technical schematic of gutter burner.................................................................... 32

3
1. Initial activities
(USER)
Procedure to follow on delivery of the METAL-FACH boiler
check if the boiler is complete (tab 5.1) and if it has not been damaged during delivery
confront your order with the data plate, that is placed on the left or right on the boiler body
read the user's manual carefully as it contains all the information required for safe operation
of the boiler
If you happen to encounter any problems, please contact our service department or dedicated
METAL- FACH service centre. The staff are trained and certified and have access to the original parts
which ensure proper servicing and boiler installation.
Schematic 1.1 Serial plate
2. Applied symbols
(USER/INSTALLER)
ATTENTION!
Very important piece of information that needs to be read
TIP!
Information that should be read to make operation easier.
3. Definitions of terms in the manual
(USER/INSTALLER)
Central heating boiler is a device intended to burn solid fuels in order to heat up the heat
carrier (usually water) that circulates in the heating system.
Burner is a device used for burning various fuels
Feeder is a part or set of devices designed for delivering various fuels to the boiler
Biomass - in energy production terms, it is a source of primeval energy consisting of different
plant or animal substances which have been biodegraded. Its use is not limited within the legal
system.
Pellet is a burning material that comes from the pressed wood waste, mainly wood dust,chip,
woodwork or lumbermill waste. It can also be produced from bark, straw,sunflower or other organic
materials. Pellet is delivered in the form of granules or rolls
4. General information
(USER)
The maintenance and operation documentation is a part of the product that comes with the
delivered boiler. The Operation and Maintenance Documentation contains data concerning the
design, installation and method of using SEG BIO series boilers with a gutter burner. A thorough
study of the manual enables a proper and safe operation of the boiler.
ATTENTION!
The user is advised to follow all guidelines concerning the appliance given in this
Operation and Maintenance Documentation, Guarantee Terms as well as in
generally applicable law.
Our boilers are shipped assembled. They are tightly attached to a pallet. Some other forms of
securing the boiler are used e.g. foil wrapping.
During the shipping, the boiler should be tightly secured (e.g.with transport belts) so that it does
not turn or move. The delivery should meet the requirements set in the general rules for
transporting materials. The loading and unloading of the boilers should be carried out using lifting
devices (fork lift truck) of lifting capacity over 1000kg.

4
5. Boiler equipment
(USER)
The delivery includes basic as well as additional elements depending on the type of order. On
receiving the boiler you should carefully inspect the boiler to ensure that it has been delivered
undamaged and complete. The additional and basic elements are listed below (Tab 5.1).
Tab. 5.1 Boiler equipment
Basic equipment
Unit
Number
of items
Central heating boiler
pcs.
1
Microprocessor regulator operates:
boiler temperature sensor
hot tap water temperature sensor
central heating feed and return temperature sensor C.H.1 and
C.H.2
return water temperature sensor
outside temperature sensor
fumes temperature sensor
burner temperature
szt.
1
Blower fan
pcs.
1
STB
pcs.
1
Fuel feeding system with burner
set
1
Fuel bin
pcs.
1
Boiler cleaning equipment
-poker
-brush
pcs.
1
STRAŻAK fire extinguishing system
pcs.
1
Adjustable screws
pcs.
4
Additional equipment
Unit
Number
of items
LAMBDA SENSOR module
pcs.
1
Cooling coil for closed system with valve
pcs.
1
Documentation
Unit
Number
of items
Boiler maintenance and operation documentation
pcs.
1
Controller user's manual and warranty card
pcs.
1
Blower fan user's manual and warranty card
pcs.
1
Screw motoreducer user's manual
pcs.
1
ATTENTION!
METAL-FACH reserves the right to implement changes to the parametres, equipment
and specification of the offered products without prior notice.
6. Use
(USER/INSTALLER)
Boilers intended for heating of residential buildings like: single-family and multi-family homes,
utility buildings, public buildings are equipped with an automatic furnace chamber filling system.
Thanks to the newest construction solutions, the SEG BIO boilers can reach the capacity of 90%. The
proper operation and highest performance of the boiler depends on the quality of installation, right
flue and appropriate service and maintenance.
ATTENTION!
The boilers are designed to operate only with open system water installations with
gravitional or forced circulation which are secured in accordance with PN-EN 13384-
1:2004/ A1:2007 Heating and Calorifics

5
7. Basic elements of the boiler
(USER/INSTALLER)
The water chassis is a construction made from welded certified steel sheets of 6 mm thickness
P265GH (for fumes interacting elements) and 4 mm (for other elements) S235JR+N.
Schematic 7.1 Basic elements of the boiler SEG BIO 14-38 kW
Schematics description
1. Exchanger
2. Fuel bin
3. Feeder
4. Motoreducer
5. Burner
6. Feeder cover
7. Extinguishing unit
8. Cleaning door
9. Observation door
10. Ash pan door
11. Infeed stub
12. Return stub
13. Discharge stub
14. Adjustable screw
15. Flue
16. Upper cleaning hatch
17. Ash pan cleanout
18. Cooling coil (optional)
19. Sleeve of STB sensor
20. Sleeve of boiler temp. sensor
21. Sleeve of flue gas temp. sensor
22. Lambda sensor case
23. Pressure equalization conduit
24. Ventilator
25. Sleeve of Feeder temp. sensor
26. Ash drawer
27. Deflector
28. Swirlers
30. Control module
31. Display
32. Switch
33. Fuse
34. STB
35. Ventilator electrical connection
36. Feeder electrical connection
37. Ignition electrical connection
38. Feeder temperature sensor
39. Sensor of mixer 2
40. Hot Tap Water Sensor
41. Fumes sensor
42. Hot tap water pump (CWU)
43. Mixer pump 2
44. Mixer pump 1
45. Boiler socket
46. Mixer 1
47. Mixer 2
48. Central heating pump (CO)
49. Circulation pump
50. Return sensor
51. Weather sensor
52. Sensor of mixer 1

6
8. Basic elements of the boiler SEG BIO 50
(USER/INSTALLER)
Schematic 8.1 Basic elements of the boiler SEG BIO 50
Schematics description
1. Exchanger
2. Fuel bin
3. Feeder
4. Motoreducer
5. Burner
6. Feeder cover
7. Extinguishing unit
8. Cleaning door
9. Observation door
10. Ash pan door
11. Infeed stub
12. Return stub
13. Discharge stub
14. Adjustable screw
15. Flue
16. Upper cleaning hatch
17. Ash pan cleanout
18. Cooling coil (optional)
19. Sleeve of STB sensor
20. Sleeve of boiler temp. sensor
21. Sleeve of flue gas temp. sensor
22. Lambda sensor case
23. Pressure equalization conduit
24. Ventilator
25. Sleeve of Feeder temp. sensor
26. Ash drawer
27. Deflector
28. Swirlers
30. Control module
31. Display
32. Switch
33. Fuse
34. STB
35. Ventilator electrical connection
36. Feeder electrical connection
37. Ignition electrical connection
38. Feeder temperature sensor
39. Sensor of mixer 2
40. Hot Tap Water Sensor
41. Fumes sensor
42. Hot tap water pump (CWU)
43. Mixer pump 2
44. Mixer pump 1
45. Boiler socket
46. Mixer 1
47. Mixer 2
48. Central heating pump (CO)
49. Circulation pump
50. Return sensor
51. Weather sensor
52. Sensor of mixer 1

7
9. Podstawowe elementy budowy kotłów
SEG BIO 75-100
(USER/INSTALLER)
Schematic 9.1 Basic elements of the boiler SEG BIO 75 –100
Schematics description
1. Exchanger
2. Fuel bin
3. Feeder
4. Motoreducer
5. Burner
6. Feeder cover
7. Extinguishing unit
8. Cleaning door
9. Observation door
10. Ash pan door
11. Infeed stub
12. Return stub
13. Discharge stub
14. Adjustable screw
15. Flue
16. Upper cleaning hatch
17. Ash pan cleanout
18. Cooling coil (optional)
19. Sleeve of STB sensor
20. Sleeve of boiler temp. sensor
21. Sleeve of flue gas temp. sensor
22. Lambda sensor case
23. Pressure equalization conduit
24. Ventilator
25. Sleeve of Feeder temp. sensor
26. Ash drawer
27. Deflector
28. Swirlers
30. Control module
31. Display
32. Switch
33. Fuse
34. STB
35. Ventilator electrical connection
36. Feeder electrical connection
37. Ignition electrical connection
38. Feeder temperature sensor
39. Sensor of mixer 2
40. Hot Tap Water Sensor
41. Fumes sensor
42. Hot tap water pump (CWU)
43. Mixer pump 2
44. Mixer pump 1
45. Boiler socket
46. Mixer 1
47. Mixer 2
48. Central heating pump (CO)
49. Circulation pump
50. Return sensor
51. Weather sensor
52. Sensor of mixer 1

8
10. Basic dimentions of the boiler SEG BIO
(USER/INSTALLER)
ATTENTION!
Feet are present on boilers:
- from SEG BIO 14 to SEG BIO 38
Their height is 30 mm.
Schematic 10.1 Boiler dimentions SEG BIO

9
Tab. 10.1 Boiler dimentions (mm) SEG BIO
TYPE
SEG BIO - 14
SEG BIO - 19
SEG BIO - 25
SEG BIO - 38
SEG BIO - 50
SEG BIO - 75
SEG BIO - 100
A
1256
1256
1256
1306
1406
1505
1505
B
535
535
535
585
682
793
793
C
1160
1355
1415
1415
1484
1520
1620
D
705
745
795
795
1003
1175
1325
E
910
1105
1160
1160
1110
1115
1215
F
350
360
410
410
535
545
695
G
1 1/2”
1 1/2”
1 1/2”
1 1/2”
1 1/2”
1 1/2”
1 1/2”
H
3/4''
3/4''
3/4''
3/4''
3/4''
3/4''
3/4''
I
180
180
180
180
220
220
220
J
1 1/2”
1 1/2”
1 1/2”
1 1/2”
1 1/2”
1 1/2”
1 1/2”
K
213
247
245
245
337
350
300
L
213
207
205
205
190
175
175
M
680
680
680
680
680
680
700
N
707
720
776
766
850
1075
1075
O
125
125
125
125
175
220
220
P
870
905
955
955
1218
1413
1570
R
-
-
-
-
-
-
-
S
-
-
-
-
-
-
-
T
-
-
-
-
-
-
-
U
338x158
338x198
338x198
388x198
488x198
600x264
600x264

10
11. Technical specifications SEG BIO
(USER/INSTALLER)
Tab. 11.1 Technical specifications SEG BIO
PARAMETERS
UNIT
TYPE OF BOILERS
SEG BIO - 14
SEG BIO - 19
SEG BIO - 25
SEG BIO - 38
SEG BIO - 50
SEG BIO - 75
SEG BIO - 100
Nominal thermal output (pellet fuel)
[kW]
14
19
25
38
50
75
100
Boiler power range
[kW]
4,2-14
5,7-19
7,5-25
10,5-38
15-50
22,5-75
30-100
Heating surface
[m2]
2,1
2,54
2,85
3,11
5,41
6,75
8,2
Boiler water capacity
[L]
60
68
73
95
120
173
194
Maximum working pressure
[bar]
3
3
3
3
3
3
3
Maximum working temperature
[°C]
95
95
95
95
95
95
95
Test pressure
[bar]
4,5
4,5
4,5
4,5
4,5
4,5
4,5
Boiler class
[-]
5
5
5
5
5
5
5
Boiler efficiency
[%]
≤90
≤90
≤90
≤90
≤90
≤90
≤90
Single fuel load
[L]
190
290
350
350
400
520
520
Fuel
[-]
pellet φ 6-8
Power supply
[-]
~230V; 50Hz
Electric Power consumption at boiler nominal power
[W]
300
300
300
300
400
400
400
Electric- power consumption (temporarily maximum)
[W]
1000
1000
1000
1000
1000
1000
1000
Temperature controller setting range
[°C]
60-85 (1 at a time)
Required chimney flue
[Pa]
20
23
23
35
38
40
40
Flow resistance δT [10k]
[mbar]
5,47
8,79
12,33
35,16
60,88
136,98
243,52
Flow resistance δT[20k]
[mbar]
1,19
2,19
3,80
8,79
15,47
34,24
60,88
Boiler weight
[kg]
415
475
510
530
745
855
995

11
12. Control and safety
(USER/INSTALLER)
1) Automatic control of the boiler can adjust:
boiler temperature
temperatury w obiegu centralnego ogrzewania C.O.1,C.O.2 ;
hot water temperature
room temperature
temperature of return water from central heating (boiler exchanger protective feature)
ignition time (depending on type of fuel)
fuel feeder operation time
feeder and vent manual control time
automatic burner power modulation (fuzzy logic)
automatic air feed (lambda sensor module)
2) Temperature sensor
The STB mechanical protection is situated inside the boiler and prevent the heating system from
overheating. it is set by default at 95oC. if temperature exceeds 95, the vent is turned off. at the same
time central heating hot water pumps come on and the mixer valve opens.
3) Fuzzy Logic control (advantages):
advanced algorithm
reduces fuel consuption and lowers the amount of sooth and contamination in the boiler
enhanced boiler working temperature stability- eliminates condensation in the boiler
(sweating of the boiler)
combustion chamber temperature is high and stable which lowers carbon oxides emission.
4) Lambda sensor
The sensor continiously adjusts the amount of air in order to provide the most efficient
operation of the boiler and minimise the carbon oxide emission under the given boiler load, fuel
type and weather conditions.
5) Fumes temperature sensor
The sensor is situated in the boiler flue. it allows to control the fumes temperature. if the
temperature exceeds 250 oC, the vent automatically shuts down until the combustion temperature
drops.
6) Mixing valve acutator x2
With this device you can adjust the set heating circle temperature in the central heating system,
keeping the constant boiler temperature. The temperature is calculated from the heating curve in
relation to the outside temperature.
13. Fuel
(USER)
The default fuel of boilers equipped with a screw feeder or retort or BIO burner is:
1) Class C wood pellet compliant with section 5.3 (Table 7) of standard PN EN 303-5:2012:
diameter: 6 ± 1 mm; 8 ± 1mm;
length: 3,15 ≤ L ≤ 40;
humidity ≤ 12%;
ash content ≤ 0,5%;
calorific value >17 MJ / kg;
The fuel should be clean and not contain rocks, pieces of wood etc.
14. Requirements for the boiler room and
boiler installation
(USER/INSTALLER)
In Poland, all the soild fuels boilers should be made in accordance with PN- 87/B-02411 Norm
„Soild fuels boilers”. The have been divided into two categories.
1) For small boilers under 25 kW, the following requirements should be met:
the boiler should be placed in the central position to the heated rooms and in a seperate
room.
the floor surface should be inflammable. If the floor is flammable, it should be covered with
steel metal sheet of 0,7 mm thickness and exceed the boiler contour by at least 50 cm. the
boiler should be placed on inflammable base of 0,05 m above the floor and secured by steel
angles.
the boiler room can be lit naturally as well as artificially.
the location of the boiler in the room should enable free access to the boiler during cleaning
and maintenance works. The distance between the back of the boiler and a wall should be
at least 70 cm, the side of the boiler and a wall should be at least 100 cm and the front of
the boiler and a wall opposite should be at least 200 cm;
the height in a new building should be at least 220 cm. in old buildings the the boiler room
should be at least 190 cm high as long as the ventilation inside is sufficient (supply- exhaust
ventilation)
supply ventilation should be provided by an open slot of 200 cm2 in diameter and placed
up to 100 cm over the floor surface.
the exhaust ventilation should be provided by an exhaust duct of 14 x 14 diameter and
made from noncombustible material. Its outlet should be installed under the ceiling of the
boiler room. The exhaust duct should lead out over the roof and placed in the close vicinity
of the chimney. No shut down equipment can be installed on the duct.
2) Boiler rooms of heating power greater than 25kW should meet extra requirements, such
as:
the distance to the far-most chimney, at gravitional draught, cannot exceed 50 cm of the
chimney height.

12
the fuel and slag store should be located by the boiler room. The storing height up to 220
cm with a 50 cm free space above it.
the equipment for vertical and horizontal delivery of the fuel and slag should be considered.
the fuel store should be equipped with natural ventilation that allows for full airing once an
hour in the fuel store and three airing circles an hour in the slag store.
the entrance door to the boiler room should be fire- resistant (0,5 class of fire resistance),
the minimum width 80cm and should open outside. the door should have a handle- free
system when opened from the inside and have a door handle when coming inside
the requirements for the ventilation are the same as those for the boiler rooms of lower
power; additionaly, in the boiler rooms of power greater than 400 kW, the supply exhaust
ventilation should be accompanied by mechanical ventilation that can be periodically
activated when feeding the fuel and removing slag. it must also be able to provide 10 airing
circles an hour
natural lightning which can light the front of the boiler should be considered in the room.
the total surface of the windows should equal at least 1/15 of the floor surface; half of the
windows in the room should open; the electrical lightining and electrical socket of max. 24 V
should also be located in the room
inspection chamber that will allow cooling water should be located in the floor; its capacity
should equal the water capacity of the biggest boiler but not exceed 2m3
in the boiler room all the heating pipes should be insulated
The placing of the boiler together with the minimum distance requirements is presented in
the boiler room (Schematic 14.1)
ATTENTION!
The mechanical exhaust ventilation should not be used in the boiler room
ATTENTION!
Correct fresh air infeed to the boiler room will ensure efficient fuel burn.
ATTENTION!
Ensure that the carbon dioxide level in the room is not too high.
ATTENTION!
For more information on boiler room construction, refer to the 12.03.2009 Minister
of Infrastructure Law.
TIP!
The rules included in the law serve only as guidelines which must be verified as the
law is amended.
Schematic 14.1 Minimal requirements for the boiler room
15. Boiler installation
(USER/INSTALLER)
The important element of installation is correct setting and levelling of the SEG BIO boilers. The
boilers do not require special base and need to be leveled with adjustable feet. The boiler must be
set in the vertical position.
1. Check that four adjustable feet have been provided

13
2. Level the boiler in relation to the floor (if the position
of the boiler is level, there is no need for the feet)
3. Place the feet into the dedicated slots.
4. Level the position of the boiler.
ATTENTION!
If the boiler is not levelled properly it can be damaged.
ATTENTION!
The boiler must not be placed in a damp and wet room as the enhanced corrosion
process will shortly damage the boiler.
The boiler must be placed on a flameproof pad that exceeds the boiler outline by 2 cm. if the
boiler is located in the basement, it is recommended that it is placed on a base of at least 5 cm thick.
The bearing of the floor and the fire hazard conditions are the key elements of choosing the right
location for the boiler i.e:
20 cm - from any flammable materials
40 cm - from any flammable materials of C3 flammability
40 cm - from any flammable materials of unknown flammability
Tab. 15.1 Flammability of construction products:
Flammability of construction products:
Construction products
A - noncombustible
Sandstone, concrete, bricks, fire-resistant
plaster, (concrete/ cement) mortar, tiles,
granite
B - difficult to ignite
Wood- cement boards/beams, fibreglass,
mineral insulation
C1 - difficult to ignite
Beech wood, oak wood, plywood
C2 - normal combustibility
Pine, larch and spruce wood, corck, plank
boards, rubber floorings
C3 - Easily ignited
Asphalt plywood, celluloid compound,
polyurethane, polystyrene, polyethylene,
plastics, PVC
16. Connecting the boiler to the heating
system
(INSTALLER)
The connecting of the boiler to the central heating system should be contracted to a producer-
certified company. this procedure should be confirmed in the warranty card which is attached to
this manual. the boiler must be connected according to the manufacturer’s guidelines and this
manual.
ATTENTION!
It is recommended for first start-up of the boiler to be performed according to
the guidelines given in the Operation and Maintenance Documentation, by a person
holding a valid license - (Information concerning persons licensed to start up the
boiler is available from the Manufacturer - tel. [phone]).
The schematics of the connecting the boiler to the heating installation meet the PN- 91/B-02420
requirements.
ATTENTION!
The temperature of the return water from the central heating boiler should not be
lower than 45C.
ATTENTION!
It is required that the boiler is connected to the heating installation by a four- way
valve.

14
Schematic 16.1 Connecting the boiler to the heating system diagram
Tab. 16.1 Symbols applied in the schematics
Designation
Key
RO
Deaeration pipe
RW
Expansion pipe
RS
Signal pipe
RP
Spill pipe
RB
Safety pipe
T1
Temperature
P1
Pressure
Schematic 16.2 Connecting boilers to the heating system diagram
Tab. 16.2 Symbols applied in the schematics
Designation
Key
T
Temperature sensor
Tk
Boiler temperature sensor
Tz
Outside temperature sensor
Tcw
Hot tap water temperature sensor
Tco
Central heating temperature sensor
Tpw
Return water temperature
Tpod
Feeder temperature sensor

15
Schematic 16.3 Connecting the boiler to the heating system
Figure description:
1. Outside the building
2. Expansion vessel
3. Room regulator
4. Mixer
5. Heater
6. Heating circle
7. Floor heating
Schematic 16.4 Connecting the boiler to the heating system with Laddomat and buffer
8. Central heating pump (CO)
9. Hot tap water pump (CWU)
10. Circulation pump
11. Additional pump P3
12. Block
13. Laddomat
14. 1,2,3,4 heating circle pumps
15. Thermostat mixing valve

16
17. Connection of boiler to heating
installation in closed-loop system
(additional option)
(INSTALLER)
ATTENTION!
The central heating system in the open system must meet the requirements set in
the PN-EN 12828:2006 norm- Heating systems in buildings and the PN-EN 303-
5:2012 Solid fuel boilers with manual and automatic feeding.
When installing the boiler in the closed system, it is important to use elements that prevent
overheating, excessive increase of pressure and use the controller of temperature during burning
process.
In the SEG BIO boilers , there is a copper coil that is installed inside the boiler exchanger. The
coil is made from ribbed copper pipe.
Tab. 17.1 Examples of devices enabling heating systems protection
Part
Description
STB
Safety temperature stop with manual return to start position
Cooling coil
Cooling coil cools the system when the temperature exceeds
97C
BVTS Valve
BVTS valve prevents the flame from returning back into the
solid fuel feeder through flooding the fuel in heightened
temperature situation.
Pressure expansion tank
Preventing heightened pressure
Safetly fixtures
It includes safety valve, manometer and deaerator
ATTENTION
The boiler installed in the closed system must be equipped with all the safety
devices listed in Tab. 17.1.
ATTENTION!
The cooling coil should be connected to the water system. The power supply cannot
be the pressure tank unit because it needs power supply for its operation.
The exchanger that is installed in the water coat is connected to the cold water cable, that flows
through it only when the thermal valve opens up when it exceeds the given temperature. The water
goes through the exchanger and receives the heat from boiler water coat and then is led to the
sewage system as hot water might damage it.
The exchanger is able to lower the temperature in the water coat by few degrees within several
seconds. If the temperature in the boiler coat drops below the set temperature then the valve cuts
off the water to the exchanger. In this solution, the high quality of the exchanger and valve allows
several consecutive switch off and on of the protection
In the solution with a built in safety coil e.g thermal protection is used (Schematic 17.2).
Schematic 17.1 Safety schematics of the boiler with the cooling coil and thermal protection
The solid fuel boilers with an automatic feeding feature carry very little risk of an uncontrolled
rise in central heating temperature as the amount of the fed fuel is small. Moreover, in case of a
sudden temperature rise, the safety procedure will activate without the user.
If anything goes wrong, the controller will switch off the feeder for 30 sec in order to remove the
ember. If after 2 min from the ember removal, the feeder temperature does not drop, the controller
will try again. After four consecutive trials to reach 85oC the controller fails to lower the feeder
temperature, the boiler stops and emergency extinguishing will start.

17
Schematic 17.2 BVTS Valve
The emergency extinguisher, that prevents from combustion of fuel in the tank, can also be
connected to the water system. In case the set temperature is exceeded, the extinguisher opens the
water valve and activated regardless of the power supply.
Due to the design of the SEG BIO series boilers, there is a very little probability that the fire gets
into the fuel tank. It is prevented by the tight construction of the feeder with a stop; levelling device
that levels the pressure in burner chamber and fuel tank.
ATTENTION!
The gas pressure in the expansion vessel should be checked before use and
properly adjusted. The vessel should be inspected once a year.
ATTENTION!
The safety valve should be installed in the heat source or its closest vicinity e.g
power cable to the system in an easily accessible spot.
ATTENTION!
The safety valve should prevent the max excessing of work pressure no more than
10%
18. Requirements for the expansion vessel
(INSTALLER)
Every open water heating installation should be equipped with an expansion vessel, which
receives excess water volume and deaerates the installation. The vessel should be installed in the
top-most point of the installation, and if possible, vertically above the boiler (boilers).
The capacity of the vessel should be calculated using the unit capacity for every kW of power at
1-2 dm 3.
The expansion vessel is equipped in stubs to connect a riser safety tube, safety downpipe, and
a spill pipe and - connected to it - deaeration.
The diameter of the deaeration and spill pipe should be at least
[MM]
- Boiler efficiency [kW]
The most important requirements on the operation of the device are the following:
The expansion vessel should be about 3.5% of the total water volume in the water heating
installation and boiler.
Each boiler must have a safety tube and spill-pipe.
Installation should be equipped with a signal pipe and expansion pipe, and a stub for
deaerating the expansion vessel.
In the case of several boilers, each should have its own safety pipe in accordance with the
guidelines in PN-91/B-02413. Safety and spill pipes should not have any closing valves, and the pipes
and vessel should be protected from freezing.
19. Connecting the boiler to the power supply
(INSTALLER)
The boiler is designed for 230V/50 Hz voltage. Such connection should be carried out by a
certified specialist. The 230V/10A connection socket with grounding should be easily accessible. The
power supply to the boiler and room lighting should have own circuit.
The finishing and heating test should be noted in the Warranty Card. the Warranty Card should
then be sent over to the manufacturer in order for the user to be registered in the company system.
ATTENTION!
First start-up of the boiler must be performed solely by service personnel trained by
the manufacturer, holding a current Authorized Service Technician or Distributor
certificate issued by METAL-FACH, or by a person holding an Electrician's license up
to 1.5 kW.
ATTENTION!
All the pumps, mixers, transmitters, ignition etc. are not parts of the controller
equipment.

18
Schematic 19.1 Electrical schematics for connecting the boiler–controller GOLD II and PLATINUM.
Electrical connection diagram of regulator:
Panel - control panel, and additionally, ecoSTER200/ecoSTER TOUCH room panel, λ- Lambda sensor module, B -module for support of additional heating circulations, BT –CT4 boiler temperature sensor, FS
–CT4 fuel feeder temperature sensor, CWU –domestic hot water temp. sensor, RS - CT4 return water temp. sensor, M1/M2 –CT4 temp. sensor of regulated mixer’s circulation, BH- upper CT4 buffer temp.
sensor, BL- lower CT4 buffer temp. sensor, WS- CT6-P weather temperature sensor, FT- CT2S flue gas temp. sensor, TR- universal thermostat of mixer (open-close), H- outlet for control of back-up boiler or
signaling of alarms, RE- relay (12V, max 80mA) for connection of back-up boiler/alarm, DS- inlet to fuel dispenser cover flap or door opening sensor, RMP- inlet of RPM sensor, L N PE- 230V~ grid power supply,
GR –earthing strip, STB –inlet to safety temp. limiter, PO –main feeder, W- fan, PM-domestic hot water circulating pump, PCO- boiler pump charging the buffer, IG-igniter, PCW- domestic hot water pump,
SM1/SM2- mixer’s actuator, PM1/PM2- mixer’s pump, CPU- control

19
Schematic 19.2 Electrical schematics for connecting the boiler –additional B MODULE.
Schematics of electric connections –additional B MODULE,
where
M3- regulated circuit temperature sensor (mixer 3) CT4 type
M4- regulated circuit temperature sensor (mixer 4) CT4 type
RM3 - mixer 3 room thermostat
RM4 - mixer 4 room thermostat
FS - BU feeder fuel level sensor
H2- outlet to the back-up boiler control or alarm or hot tap water
circulation pump
Relay
L N PE- power supply 230V~
P/M ¾ - mixer pump
SM ¾ - mixer servo
BU - The fuel tank from the bunker to the tank in the boiler
CPU- control
A- ecoMAX 860P2-T controller, module A