Alarko ALG Series Owner's manual

ALG SERIES
GAS BURNERS
ALG 50/2, ALG 70/2
INSTALLATION , OPERATION
MAINTENANCE
ALG SERIES
NATURAL GAS & LPG
BURNERS
ALG 200/M, ALG 120/M,
ALG 200/M (LPG), ALG 120/M (LPG)
INSTALLATION, OPERATION, MAINTENANCE

Code: A.6.1.5i
Revision Date: 071116 Print Date: 071116

ALARKO
Models ALG 200/M , ALG120/M
Natural Gas & LPG Burners.
ASSEMBLY
OPERATION
MAINTENANCE

CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . 5
DECLARATION OF CONFIRMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
GUARANTEE & SERVICE.. . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAIN PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PACKAGE CONTENTS . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PRINCIPLES OF OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
TECHNICAL SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PERFORMANCE CURVES (CAPACITY –PRESSURE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
GAS LINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
GAS LINE PRESSURE ADJUSTMENT AND CAPACITY ADJUSTMENT. . . . . . . . . . . . . . . . . . . . 10
EXAMPLE OF CAPACITY ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DIMENSIONS. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
CONNECTION TO THE BOILER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ELECTRODE ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
COMBUSTION HEAD & TURBULATOR ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
AIR FLOW ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
AIR DAMPER MOTOR AND AIR ADJUSTMENT in MODULATING BURNERS …….. . . . . . . 19
BURNER CONTROL UNIT (LFL 1.322) for MODULATING BURNERS ALG200/M .. . . . . . . . . . . 20
ERROR CODES (LFL 1.322) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
IONIZATION CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
GAS LINE ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
COMISSIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
BOILER CONTROL UNIT (RWF50) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
RWF40 MENU SYSTEM AND SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PRESSURE SWITCH . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
PRESSURE SWITCH SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
VALVE PROVING SYSTEM -VPS 504 SO2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
VALVE PROVING SYSTEM -VPS 504 SO2 SAFETY INSTRUCTION. ... . . . . . . . . . . . . . . . . . 33
GAS MULTİBLOCK MBC700 VEF, MBC 1200 VEF SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
GAS MULTİBLOCK MBC1900 VEF, MBC 3100 VEF SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . 40
GAS MULTİBLOCK MBC … VEF WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
CONVERSION TO OTHER GASES (NG to LPG, LPG to NG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
GAS LINE CHANGE (NG to LPG, LPG to NG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
WIRING DIAGRAMS ………………………………. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
PROBLEMS / POSSIBLE CAUSES / REMEDIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Provided that the principles, warnings and standards as set out in the operation User Manual are
complied with, your burner shall be covered by the warranty of ALARKO CARRIER for a period of 3
(three) years starting from the date of sale, against any faults, of material and workmanship.
The Certificate of Warranty shall be filled out and forwarded to ALARKO CARRIER by our Dealer
who you bought the burner. Please follow up for its prompt forwarding.
The Authorized ALARKO CARRIER Service people will be at your service all the time even to solve
your smallest problems. The contact information of our Authorized Services can be found in the
Authorized Dealers Address Booklet which is supplied along with the burner.
The minimum lifetime established by the Ministry of Industry and Commerce for these burners is 10
(ten) years. The producer and the dealers undertake to provide maintenance service and spare
parts during this established time.
GUARANTEE AND SERVICE
INTRODUCTION
5
This manual includes the information concerning the ASSEMBLY, OPERATION and MAINTENANCE of
ALG type gas burners produced by ALARKO.
Please read this manual very carefully in order to be able to operate your burner with high efficiency and
economically as well as to use it without running into any difficulty for a long period. Please keep this
manual as a source of further reference whenever you need.
Our Authorized Dealers and Services will install your burner in its place of operation and will make the
necessary connections. You will be informed about the operation and maintenance of your equipment.
DECLARATION OF CONFIRMITY
The equipment which the models are indicated in this manual are produced by Alarko-Carrier according
to the EC directives and are CE marked. These directives are:
2006/42/EC The Machinery Directive
2009/142/EC Gas Appliances Directive
2006/95/EC Low Voltage Directive
2004/108/EC EMC Directive
•The equipments are certified according to the European standards for the gas categories which are listed
in the General Information Section of this manual.

The assembly and the commissioning must be done by an officially authorized Alarko-Carrier dealer
or service.Do not make any operations on any part of this burner for any purpose such as starting,
adjusting and servicing, other than operations which are stated in this manual.
Please take into account the warning labels such as “Fragile” and “Upright Position” while
handling.
The best carrying position of the burner is handling by the burner body and combustion head.
•Necessary information about the Gas appliances and Boiler Rooms can be gathered from
authorized ALARKO-Carrier dealers.
•The operation and commissioning rules are of importance. Please take these cautions into account
during daily operations, after long-term non operating times and error determinations.
•The yearly maintenance and seasonal start-ups of your burner must be done by Alarko-Carrier
service people.
•Do not keep flammable substances in any for (gas / liquid / solid) close to your burner.
6
PRECAUTIONS
GENERAL INFORMATION
Alarko ALG gas burners of modulating kinds are designed for the combustion of natural gas and
LPG and are equipped with appropriate safety equipment requested by the international standards.
The burner category is II 2R/3R and they operate in a capacity range of 844 –1861kW(ALG200/M),
512-1180kW(ALG120/M) and 553-1200kW (ALG120/M LPG).
Alarko ALG 200/M, ALG 120/M gas burners;
•Are designed for the combustion of natural gas,
•Are equipped with appropriate safety equipment required by international regulations,
•Have auto start-up
•Are comparably silent burners.
ALG 200/M (LPG), ALG 120/M (LPG) gas burners;
•Are designed for the combustion of LPG,
•Are equipped with appropriate safety equipment required by international regulations,
•Have auto start-up
•Are comparably silent burners.

7
Burner
Type Stage Fuel Gas Line Diameter
Min / Max
Gas
Pressure
[mbar]
Gas Line Components
Filter Multiblock
ALG 200/M Modulating
Naturalgas
(2H)
2" 90-360 - DUNGS MBC 700 VEF
2" 33-360 - DUNGS MBC 1200 VEF
DN65 26-360 ANELLO FİLTER 70610 F/CE DUNGS MBC 1900 VEF
DN80 19,5-360 ANELLO FİLTER 70620 F/CE DUNGS MBC 3100 VEF
LPG
(3B/P)
2" 29-360 - DUNGS MBC 700 VEF
2" 18-360 - DUNGS MBC 1200 VEF
DN65 16-360 ANELLO FILTER 70610 F/CE DUNGS MBC 1900 VEF
ALG 120/M Modulating
Naturalgas
(2H)
2" 47-360 - DUNGS MBC 700 VEF
2" 20,6-360 - DUNGS MBC 1200 VEF
LPG
(3B/P)
2" 21-360 - DUNGS MBC 700 VEF
2" 17-360 - DUNGS MBC 1200 VEF
The burner modulating unit (RWF 50) is sold seperately from the burner. The modulating unit can be mounted on a seperate elec
The burner modulating unit (RWF 50) is sold seperately from the burner. The modulating
unit can be mounted on a seperate electric panel or on the plastic panel casing with the
RWF mounting gap whether to be ordered with the so called gapped version.

MAIN PARTS
8
User’s Manual
Certificate of Warranty
Authorized Dealers & Services Booklet
M12 Bolts (4 Units)
Washers (4 Units)
PACKAGE CONTENTS
1. Main Body
2. Top Cover
3. Connection Body
4. Boiler Connection Gasket
5. Burner Motor
6. Multiblock Valve
7. Air pressure switch
8. Combustion Head
9. Gas Inlet Line
10. Turbulator
11. Ignition & Ionization Electrodes
12. Ignition Transformer
13. Fan
14. Air Damper Motor
15. Sight Glass
16.Gas Filter
17. Multibllck Valve Plug
18. Control Panel
19. Operation –Error / Reset
20. On –Off Button
21. Control Unit
22. Fuse
23. Cable Connector
24. Thermal relay
25. Terminal
26. Contactor
27. Air Damper
28. RWF40 Universal Controller
29. Gas Pressure Switch
30. Valve Proving System
31. Pressure Switch Plug
28
18
21
19
20
26
25
23
22
24
27
30
29
31
12
513 14
10 811 4 9 3
1
16
7
17
6
2
15
ALG 200/M, ALG 120/M GAS LINE
MBC Series
6
29
MBC Serisi
IP 54
Min. gas pressure values are given for burner maximum capacity. İn case of operating the
burner under the maximum capacity, the minimum required gas pressure values are lower
then the declared value and can be determined by using the "gas line pressure loss graph".

Air supplied through suction cell into the burner. The air is pressurized via the fan in the special shell
shaped burner body and delivered to the mixing group. The mixing group consists of the turbulator and
and the combustion head. The gas is delivered to this volume by the gas line. The gas and air is mixed
in this volume and formes an ideal air –gas mixture. Ideal air –gas mixture assures high combustion
efficiency.
PRINCIPLE of OPERATION
9
TECHNICAL SPECIFICATIONS
NOTE : The performance curve shows the possible fuel consumption versus flue pressure losses.
The fuel consumption is determined via tests which are done in standard test tubes complying with
the EN 676 standard.
PERFORMANCE CURVES
ELECTRIC SUPPLY: 3~ 380\415 V –50 Hz ;
Lower Heating Value of Natrual Gas: 8.250 kcal\m³
Lower Heating Value of mix LPG: 26000 kcal\m³
The capacity values are given under standard conditions. (15°C, 1013 mbar)
Burner Weight excluding gas line:73kg
WORKING DIAGRAM
-1
0
1
2
3
4
5
6
7
8
9
10
11
400 600 800 1000 1200 1400 1600 1800
Capacity (kW)
Flue Gas Losses (mbar)
ALG 200/M ALG 120/M ALG 120/M (LPG)
BURNE
R TYPE
CAPACITY
(m3/h)
HEAT INPUT
MOTOR
PACKAGE
DIMENSIONS
kW
Kcal/h
Min.
Max
.
Min.
Max.
Min.
Max.
Speed(rpm
)
Power
(kW)
Curren
t (A)
TOTAL POWER
CONSUMPTIO
N
ALG
120/M
53.4
123
512
1180
440320
1014800
2850
2,2
1,8
3,8
1380x700x60
0
ALG
120/M
LPG
18.3
39.7
553
1200
475580
1032000
ALG
200/M
88
194
844
1861
726000
1600500
3
2,4
4,6
ALG
200/M
LPG
27,9
61,6
844
1861
726000
1600500

10
GAS LINE
The gas line components which are mandatory or optional to use are schematically shown below.
1. Ball valve
2. Flexible connection (optional)
3. Gas line inlet pressure measuring point
4. Gas Filter
5. Minimum Gas Pressure Switch
6. Safety Solenoid Valve
7. Gas Pressure Regulator
8. Solenoid Valve
9. Multiblock Valve
10. Valve Proving System (is optional for burners having capacity of lower than 1200 kW)
11. Air Pressure Switch
12. Burner Gas Pressure Measuring Point
13. Burner
14. Filter Outlet Pressure Measuring Point
15. Boiler Flue Gas Pressure Measuring Point
16. Burner Air Pressure Measuring Point
16
Multiblock Gas Line (Modulating)

GAS LINE PRESSURE LOSS GRAPHS & CAPACITY ADJUSTMENT
The following graphs show the minimum “gas line inlet pressure” and “burner gas pressure” values
for burners having various gas line diameters and various gas line types. The measuring points of
these values are respectively shown in 3. and 12. points on page 9. “Combustion chamber pressure”
must be added to the values gathered from the graphs according to the capacity need. Combustion
chamber pressure can be measured on the boiler front door or via the measuring nipple placed on
the connection body of the boiler (see page 9). The “burner gas pressure” which is found with this
method is the gas pressure to achieve the desired capacity. “Gas line inlet pressure” should be
calculated to supply the desired burner gas pressure.
The graphs are given under standard conditions (15 °C and 1013 mbar). The ratio of densities of NG
to air is taken as 0,595. The graphs may change according to the gas supplied.
11
Lower Heating Value of NG : 8250 kcal/m³
Lower Heating Value of mix LPG : 26000 kcal/m³
Burner Gas Pressure
Gas Line Inlet Pressure
ALG 200/M GAS LINE PRESSURE LOSS (Natural Gas)
Burner Gas Pressure
MBC 700 VEF Gas Line
(DN 50)
MBC 1200 VEF Gas Line
(DN 50)
MBC 1900 VEF Gas Line
(DN 65)
MBC 3100 VEF Gas Line
(DN 80)
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
600 800 1000 1200 1400 1600 1800 2000 2200
CAPACITY (kW)
PRESSURE LOSS (mbar)

GAS LINE PRESSURE LOSS GRAPHS & CAPACITY ADJUSTMENT
ALG 200/M GAS LINE PRESSURE LOSS (LPG)
Burner Gas Pressure
MBC 700 VEF Gas Line
(DN 50)
MBC 1200 VEF Gas Line
(DN 50)
MBC 1900 VEF Gas Line
(DN 65)
MBC 3100 VEF Gas Line
(DN 80)
0
5
10
15
20
25
30
35
600 800 1000 1200 1400 1600 1800 2000 2200
CAPACITY (kW)
PRESSURE LOSS (mbar)
Lower Heating Value of NG : 8250 kcal/m³
Lower Heating Value of mix LPG : 26000 kcal/m³
Burner Gas Pressure
Gas Line Inlet Pressure
12
Flue gas losses should be added to the Gas line inlet pressure value in above graph.

GAS LINE PRESSURE LOSS GRAPHS & CAPACITY ADJUSTMENT
Lower Heating Value of NG : 8250 kcal/m³
Lower Heating Value of mix LPG : 26000 kcal/m³
Burner Gas Pressure
Gas Line Inlet Pressure
13
ALG 120/M GAS LINE PRESSURE LOSS
Burner Gas Pressure
MBC 1200 VEF Gas Line 2"
MBC 700 VEF Gas line 2"
0,0
5,0
10,0
15,0
20,0
25,0
30,0
35,0
40,0
45,0
50,0
400 500 600 700 800 900 1000 1100 1200 1300
Capacity (kW)
Pressure Loss (mbar)
Flue gas losses should be added to the Gas line inlet pressure value in above graph.

GAS LINE PRESSURE LOSS GRAPHS & CAPACITY ADJUSTMENT
Lower Heating Value of NG : 8250 kcal/m³
Lower Heating Value of mix LPG : 26000 kcal/m³
Burner Gas Pressure
Gas Line Inlet Pressure
14
ALG 120/M GAS LINE PRESSURE LOSS (LPG)
Burner Gas Pressure
MBC 700 VEF Gas Line 2"
MBC 1200 VEF Gas Line 2"
0,0
5,0
10,0
15,0
20,0
25,0
400 500 600 700 800 900 1000 1100 1200 1300
Capacity (kW)
Pressure Loss (mbar)
Flue gas losses should be added to the Gas line inlet pressure value in above graph.

Problem
Boiler: Alarko ACK2-1250, Fuel: Natural Gas,
Gas Line Pressure: 300 mbar
1. Select burner for this case.
2. Max capacity adjustment of the burner.
3. Determination of the Burner Gas Pressure for the desired capacity.
4. Determination of the gas line diameter for the given inlet pressure.
Solution
1. Gas burner is selected from the Alarko-Carrier Boiler-Burner Compatibility
Charts as ALG 200/M
2. The boiler max capacity (outlet) is given as 1.250.000 kcal/h (1453,5kW), in
the same document, it is also stated that the burner should be operating at a min
capacity of 1579,9kW as the boiler inlet capacity.
3. Boiler flue losses are given as 3,1mbar in the same document. It is seen in the
below graph (ALG 200/M Gas Line Pressure Graph) that the burner
pressure is 8,6 mbar for 1579,9 kW (point #1). If the boiler flue losses is added
to this value,burner gas pressure to be adjusted is found as 11,7 mbar
4. The minimum gas inlet pressure for “MBC 1200 VEF Gas Line”line is found as
25mbar in the same graph (point #2). If the boiler flue losses is added,
the minimum gas inlet pressure is found as 28,1mbar. Since this value is lower
than the line inlet pressure (300mbar), MBC 1200 VEF Gas Line”line is
suitable. Note that the best selection for smaller investment is the cheapest
15
EXAMPLE of CAPACITY ADJUSTMENT

16
DIMENSIONS (mm)
ALG 200/M, ALG 200/M LPG
ALG 200/M, ALG 200/M LPG , ALG 120/M ALG, 120/M LPG

CONNECTION TO THE BOILER
ELECTRODE ADJUSTMENTS
The connection plate must be prepared
according to the dimensions given. Boiler
Connection Gasket (4) can be used as a
master copy for M10 holes.
Combustion head and
connection body group (3)
is connected to the boiler
with the gasket (4) in
between utilizing
connection bolts (5).
Burner is placed to the
hinge on the connection
body and is stabilized with
the hinge rod (2) and bolt
(1).
17
There are 3 electrodes:
2 for ignition and 1 for
ionization.
Dimensions are in mm.
Make sure the spaces between the electrodes and the
turbulator comply with the above given dimensions. These
dimensions must be checked after every change made on
the turbulator.
NOTE: Ignition and ionization electrodes should never
touch the turbulator and combustion head. In case, the
electrodes will not operate correctly resulting in burner’s
malfunction.
Ionization Electrode Adjustment
20-22
8
14
26
Ignition Electrode Adjustment
2
1
534

The combustion head and turbulator must be placed correctly in order to achieve a proper combustion
efficiency.
The turbulator can be placed to min, medium and max (1, 2, 3) values by unscrewing the nuts. The
position of the combustion head relative to the turbulator is adjusted and nuts are tightened when
positioning is ended. The air flow cross-section area is varied with this method. The correct position
can be found by utilizing the below graphs.
18
COMBUSTION HEAD –TURBULATOR ADJUSTMENT
Somun
Namlu Ayar Kapağı
Stroke length
Nut
Head Adjustment Cover
ALG 200/M
0,5
1
1,5
2
2,5
3
800 1000 1200 1400 1600 1800
Capacity (kW)
Combustion Head
Position
ALG 200/M (LPG)
0,5
1
1,5
2
2,5
3
400 600 800 1000 1200 1400 1600 1800
Capacity (kW)
Combustion Head
Position
ALG 120/M
0,5
1
1,5
2
2,5
3
3,5
400 500 600 700 800 900 1000 1100 1200 1300
Capacity (kW)
Combustion Head
Position
ALG 120/M (LPG)
0,5
1
1,5
2
2,5
3
3,5
400 500 600 700 800 900 1000 1100 1200 1300
Capacity (kW)
Combustion Head
Position

AIR FLOW ADJUSTMENT
Combustion air is taken into the burner through air
suction cell. Air flow amount is adjusted by an air
damper placed in this cell. The damper is run by
damper motor (See Figure on the right). 0 value on the
indicator means the damper is fully closed, 9 value
means fully opened. Air damper motor adjustment is
told in an other section of this manual.
Decrease the air flow to minimum value for
the first running of the burner. Make the
adjustments of the air damper following the
combustion start.Air flow adjustment is
made with the damper motor shafts for
modulating burners. Check if the burner
start is OK after completing the air flow
adjustments.
The correct position of the air damper for
the desired burner capacity can be found
using the graphs given on this page.
These graphs are derived in laboratory
conditions and are for avarage values. The
positioning values may vary according to
different boiler conditions. Therefore the
final adjustment must be done by the
evaluation of the flue gas emissions on
site.
Proper emissions are given as follows;
CO < 93 ppm
ג≤1,2 (for max capacity)
ג≤1,5 (for min capacity )
NOx ≤83 ppm
ג: Excess air ratio
19
ENERJÝBESLEMESÝ:
..... - ........
KAPASÝTE:
ISI YÜKÜ :
SERÝNO: **
ÜRETÝM YILI :
kW *
XX
ALG 200/M
TÝP :
Gebze - KOCAELÝ
SANAYİ VE TİCARET A.Ş.
Tel: [phone]
Þahabettin Bilgisu Cad. 41480
ALARKO CARRIER
GOSB - Gebze Organize Sanayi Bölgesi
ALG 200/M
1
3
5
7
9
800 1000 1200 1400 1600 1800
Capacity(kW )
Air Damper Position
ALG 200/M (LPG)
1
3
5
7
9
800 1000 1200 1400 1600 1800
Capacity (kW)
Air Damper Position
ALG 120/M
0,5
2,5
4,5
6,5
8,5
400 500 600 700 800 900 1000 1100 1200 1300
Capacity(kW )
Air Damper Position
ALG 120/M (LPG)
0,5
1
1,5
2
2,5
3
3,5
400 500 600 700 800 900 1000 1100 1200 1300
Capacity(kW )
Air Damper Position

AIR DAMPER MOTOR & AIR FLOW ADJUSTMENT FOR MODULATING
BURNERS (SQN 30.401A2700 )
20
Siemens SQN30 actuators are used on modulating burners. There are 5 cams on this actuator.
(II) 0 point cam.
(III)Minimum capacity adjustment cam.
(I) Maximum capacity adjustment cam.
(V) Min –max switching cam.
(IV) Not actively used.
SQN 30 damper motor stroke is 90°and
the time to achieve this stroke is 30s.
Note : Proper 0 (Zero) adjustment must be
checked. The air damper must be fully closed
when (II) cam indicates 0°.
Stage Switching cam; from 1st to 2nd
stage. (Must be adjusted 10-15°smaller
than the 2nd stage point).
0 point cam
Min. Capacity (1st) adjustment cam.
Max. Capacity (2nd) adjustment cam.
AIR DAMPER MOTOR & AIR FLOW ADJUSTMENT FOR MODULATING
BURNERS (SQN 70.664A20 )
BLUE : 0 point adjustment cam
RED : Max. Capacity adjustment cam
ORANGE : Min. Capacity adjustment
BLACK: Stage Switching cam; from 1st to
2nd stage. (Must be adjusted 10-15°smaller
than the 2nd stage point).
SQN 70 damper motor stroke is 90°and
the time to achieve this stroke is 30s.
Note : Proper 0 (Zero) adjustment must be
checked. The air damper must be fully closed
when (II) cam indicates 0°.