MANUAL FOR
BURNERS
BRULEURS
BRENNER
QUEMADORES
BRUCIATORI
- INSTALLATION
- OPERATION
- MAINTENANCE
LIGHT OIL BURNERS
G18 G-.SP
PG25 G-.SP
PG30 G-.TN
M03978CA Rev. 00 10/99
FOREWORD Page 2
PARTE I: INSTALLATION Page 4
PARTE II: OPERATION Page 11
PARTE III: MAINTENANCE Page 12
APPENDIX Page 18
Complying with
EMC 89/336/CEE
LV 73/23/CEE
Technical Documentation CIB Unigas S.p.a. - Campodarsego (PD)
PREFACE
THIS MANUAL IS SUPPLIED AS AN INTEGRAL AND ESSENTIAL PART OF THE PRODUCT AND MUST BE DELIVERED
TO THE USER.
INFORMATION INCLUDED IN THIS SECTION ARE DEDICATED BOTH TO THE USER AND TO PERSONNEL FOLLOWING
PRODUCT INSTALLATION AND MAINTENANCE.
THE USER WILL FIND FURTHER INFORMATIONS ABOUT OPERATING AND USE RESTRICTIONS, IN THE SECOND
SECTION OF THIS MANUAL. WE HIGHLY COMMEND TO READ IT.
CAREFULLY KEEP THIS MANUAL FOR FUTURE REFERENCE.
1) GENERAL INTRODUCTION
The equipment must be installed in compliance with the
regulations in force, following the manufacturer’s instructions,
by qualified personnel.
Qualified personnel means those having technical knowledge
in the field of components for civil or industrial heating
systems, sanitary hot water generation and particularly
service centres authorised by the manufacturer.
Improper installation may cause injury to people and animals,
or damage to property, for which the manufacturer cannot be
held liable.
* Remove all packaging material and inspect the equipment
for integrity.
In case of any doubt, do not use the unit - contact the supplier.
The packaging materials (wooden crate, nails, fastening
devices, plastic bags, foamed polystyrene, etc), should not be
left within the reach of children, as they may prove harmful.
* Before any cleaning or servicing operation, disconnect the
unit from the mains by turning the master switch OFF, and/or
through the cut-out devices that are provided.
* Make sure that inlet or exhaust grilles are unobstructed.
* In case of breakdown and/or defective unit operation,
disconnect the unit. Make no attempt to repair the unit or take
any direct action.
Contact qualified personnel only.
Units shall be repaired exclusively by a servicing centre, duly
authorised by the manufacturer, with original spare parts.
Failure to comply with the above instructions is likely to impair
the unit’s safety.
To ensure equipment efficiency and proper operation, it is
essential that maintenance operations are performed by
qualified personnel at regular intervals, following the
manufacturer’s instructions.
* When a decision is made to discontinue the use of the
equipment, those parts likely to constitute sources of danger
shall be made harmless.
* In case the equipment is to be sold or transferred to another
user, or in case the original user should move and leave the
unit behind, make sure that these instructions accompany the
equipment at all times so that they can be consulted by the
new owner and/or the installer.
* For all the units that have been modified or have options
fitted then original accessory equipment only shall be used.
* This unit shall be employed exclusively for the use for which
it is meant. Any other use shall be considered as improper
and, therefore, dangerous.
The manufacturer shall not be held liable, by agreement or
otherwise, for damages resulting from improper installation,
use and failure to comply with the instructions supplied by the
manufacturer.
2) SPECIAL INSTRUCTIONS FOR BURNERS
*The burner should be installed in a suitable room, with
ventilation openings complying with the requirements of the
regulations in force, and sufficient for good combustion.
* Only burners designed according to the regulations in force
should be used.
* This burner should be employed exclusively for the use for
which it was designed.
* Before connecting the burner, make sure that the unit rating
is the same as delivery mains (electricity, gas oil, or other fuel).
*Observe caution with hot burner components. These are,
usually, near to the flame and the fuel pre-heating system,
they become hot during the unit operation and will remain hot
for some time after the burner has stopped.
* When the decision is made to discontinue the use of the
burner, the user shall have qualified personnel carry out the
following operations:
a) Remove the power supply by disconnecting the power cord
from the mains.
b) Disconnect the fuel supply by means of the hand-operated
shut-off valve and remove the control handwheels from their
spindles.
Special warnings
* Make sure that the burner has, on installation, been firmly
secured to the appliance, so that the flame is generated inside
the appliance firebox.
* Before the burner is started and, thereafter, at least once a
year, have qualified personnel perform the following
operations:
a) set the burner fuel flow rate depending on the heat input of
the appliance;
b) set the flow rate of the combustion-supporting air to obtain a
combustion efficiency level at least equal to the lower level
required by the regulations in force;
c) check the unit operation for proper combustion, to avoid any
harmful or polluting unburnt gases in excess of the limits
permitted by the regulations in force;
d) make sure that control and safety devices are operating
properly;
e) make sure that exhaust ducts intended to discharge the
products of combustion are operating properly;
f) on completion of setting and adjustment operations, make
sure that all mechanical locking devices of controls have been
duly tightened;
g) make sure that a copy of the burner use and maintenance
instructions is available in the boiler room.
* In case of repeated burner shut-downs, do not continue resetting the unit manually. Contact qualified personnel to take
care of such defects.
* The unit shall be operated and serviced by qualified
personnel only, in compliance with the regulations in force.
2
FOREWORD
3) GENERAL INSTRUCTIONS DEPENDING ON FUEL USED
3B) FIRING WITH GAS, GASOIL OR OTHER FUELS
3A) ELECTRICAL CONNECTION
* For safety reasons the unit must be efficiently earthed and
installed as required by current safety regulations.
* It is vital that all saftey requirements are met. In case of any
doubt, ask for an accurate inspection of electrics by qualified
personnel, since the manufacturer cannot be held liable for
damages that may be caused by failure to correctly earth the
equipment.
* Qualified personnel must inspect the system to make sure
that it is adequate to take the maximum power used by the
equipment shown on the equipment rating plate. In particular,
make sure that the system cable cross section is adequate for
the power absorbed by the unit.
* No adaptors, multiple outlet sockets and/or extension cables
are permitted to connect the unit to the electric mains.
An omnipolar switch shall be provided for connection to mains,
as required by the current safety regulations.
The use of any power-operated component implies
observance of a few basic rules, for example:
- do not touch the unit with wet or damp parts of the body and/
or with bare feet;
- do not pull electric cables;
- do not leave the equipment exposed to weather (rain, sun,
etc.) unless expressly required to do so;
- do not allow children or inexperienced persons to use
equipment;
* The unit input cable shall not be replaced by the user.
In case of damage to the cable, switch off the unit and contact
qualified personnel to replace.
* When the unit is out of use for some time the electric switch
supplying all the power-driven components in the system (i.e.
pumps, burner, etc.) should be switched off.
GENERAL
* The burner shall be installed by qualified personnel and in
compliance with regulations and provisions in force; wrong
installation can cause injuries to people and animals, or
damage to property, for which the manufacturer cannot be
held liable.
* Before installation, it is recommended that all the fuel supply
system pipes be carefully cleaned inside, to remove foreign
matter that might impair the burner operation.
* Before the burner is commissioned, qualified personnel
should inspect the following:
a) the fuel supply system, for proper sealing;
b) the fuel flow rate, to make sure that it has been set based on
the firing rate required of the burner;
c) the burner firing system, to make sure that it is supplied for
the designed fuel type;
d) the fuel supply pressure, to make sure that it is included in
the range shown on the rating plate;
e) the fuel supply system, to make sure that the system
dimensions are adequate to the burner firing rate, and that the
system is equipped with all the safety and control devices
required by the regulations in force.
* When the burner is to remain idle for some time, the fuel
supply tap or taps should be closed.
SPECIAL INSTRUCTIONS FOR USING GAS
* Have qualified personnel inspect the installation to ensure
that:
a) the gas delivery line and train are in compliance with the
regulations and provisions in force;
b) all gas connections are tight;
c) the boiler room ventilation openings are such that they
ensure the air supply flow required by the current regulations,
and in any case are sufficient for proper combustion.
* Do not use gas pipes to earth electrical equipment.
* Never leave the burner connected when not in use. Always
shut the gas valve off.
* In case of prolonged absence of the user, the main gas
delivery valve to the burner should be shut off.
Precautions if you can smell gas
a) do not operate electric switches, the telephone, or any other
item likely to generate sparks;
b) immediately open doors and windows to create an air flow
to purge the room;
c) close the gas valves;
d) contact qualified personnel.
* Do not obstruct the ventilation openings of the room where
gas appliances are installed, to avoid dangerous conditions
such as the development of toxic or explosive mixtures.
3FOREWORD
PART I: INSTALLATION MANUAL
TECHNICAL DATA
BURNER TYPE G18 SP PG25 SP PG30 TN
Input min kcal/h 90.300 140.200 140.200
max kcal/h 180.000 250.200 300.000
min kW 105 163 163
max kW 209 291 349
Oil firin g rate kg/h m in. 9 14 14
kg/h max. 18 25 30
Fuel light oil light oil light oil
Electrical supply 230V 230V 230V
Frequency 50 Hz 50 Hz 50 Hz
Motor 2800 g/1' kW 0.25 0.37 0.37
A absorbed A 1.5 2.2 2.2
Total power absorption kW 0.55 0.87 0.87
Operation Soft start Soft start
Single
stage
BURNER MODEL IDENTIFICATION
Burners are identified by burner type and model. Burner type identification is described as follow:
Type: G18 Model: G-. SP. S. *. A.
(1) (2) (3) (4) (5) (6)
(1) BURNER TYPE G18 SP - PG25 SP - PG30 TN
(2) FUEL G = Light oil (Viscosity at 20°C 5 cSt)
(3) ADJUSTMENT SP = Soft Start
TN = Single Stage
(4) BLAST TUBE LENGHT (See overall dimensions)
S = Standard
L = Long
(5) DESTINATION COUNTRY * see data plate
(6) SPECIAL VERSIONS A = Standard
OVERALL DIMENSIONS
ABBLCCLDEGKH P M
G1 8 SP
275 90 200 365 475 340 255 115 230 125 121÷134 M8
Fig. 1
4
INSTALLATION
OVERALL DIMENSIONS
ABBLCCLD EFGKHPM
PG25SP
PG30SP
515 155 345 660 850 267 260 520 133 290 125 155 M10
PERFORMANCE CURVES
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
Back pressure in
0.2
0
combustion chamber mbar
6 8 10 12 14 16 18 20
Fig. 1a
Fig. 2
4
3
2
1
0
Back pressure in
-1
combustion chamber mbar
Back pressure in
10 12 14 16 18 20 22 24 26 28 30
3
2.5
2
1.5
1
0.5
0
-0.5
-1
combustion chamber mbar
10 12 14 16 18 20 22 24 26 28 30 32 34
Oil rate Kg/h
Fig. 3
Oil rate Kg/h
Fig. 3a
INSTALLATION
Oil rate Kg/h
5
MOUNTINGS AND CONNECTIONS
The burners are despatched in cardboard packages.
The packaging contains the following items:
1 burner;
2 flexible light oil tubes;
1 light oil filter;
1 gasket to be inserted between the burner and the boiler;
1 this manual, the Guarantee Certificate and the test certificate.
To get rid of the burner’s packing and in the event of scrapping of the latter, follow the procedures
laid down by current laws on disposal of materials.
FITTING BURNER TO BOILER
G18SP
Attach the flange of the burner to the boiler with the
reference as shown in picture. This allows a correct
inclination towards the combustion chamber
Fig. 4
PG25SP - PG30TN
After fitting the burner to the boiler see that the
space between the blast tube and the refractory
lining is sealed with appropriate insulating material
(ceramic fibre cord or refractory cement).
Key
1) Burner
2) Fixing nut
3) Washer
4) Seal
5) Stud bolt
6) Sightglass cleaning tube
7) Blast tube
Fig. 4a
6
INSTALLATION
G18SP PG25SP PG30TN
Fig. 5 Fig. 5bFig. 5a
Fig. 6
7
SETTINGS
Burners G18SP - PG25SP
These burners are fitted with a double-regulation pump. The flame control device, a twin-stage one, after the pre-purgue stage,
energized the valve EV1 and the burner starts up.
After few seconds, the intervention of the second stage caused the energizing of the valve EV2, so the burner is feeded with a
maximum pressure of about 18 bar.
Burner PG30TN
Before carry out the settings, start-up the light oil pump proceeding as follows:
- start up the burner, light the photoresistor after the solenoid valve opening and leak the air from the manometer gauge.
Before starting up the burner, be sure that the return pipe to the tank is not obstructed; any obstruction would cause the pump
seal to break.
Light oil flow rate setting
The light oil rate is adjusted by chosing a nozzle with appropriate dimensions and setting the inlet pump pressure; to chose the
nozzle, refer to the tables below.
LIGHT OIL PUMP SETTINGS
Burners G18SP - PG25SP
Adjust the pump for the ingnition, to a pressure value of about 8-10 bar (see fig. 7).
After 10”, the safety device drives the second stage; set the pump to a pressure value of 18 bar, by means of the regulation screw.
Burner PG30TN
Set the pump to a pressure value from 10 to 14 bar, depending by the nozzle fitted (see table 2).
SELECTING THE OIL NOZZLE
Table 1 - Burners G18SP - PG25SP
BAR
GPH 8 9 101112131415161718
1.75 6.02 6.38 6.73 7.05 7.37 7.67 7.96 8.24 8.51 8.77 9.02
2.00 6.88 7.29 7.69 8.06 8.42 8.77 9.10 9.42 9.72 10.02 10.31
2.25 7.74 8.20 8.65 9.07 9.47 9.86 10.23 10.59 10.94 11.28 11.60
2.50 8.59 9.12 9.61 10.08 10.53 10.96 11.37 11.77 12.16 12.53 12.89
3.00 10.31 10.94 11.53 12.09 12.63 13.15 13.64 14.12 14.59 15.03 15.47
3.50 12.03 12.76 13.45 14.11 14.74 15.34 15.92 16.48 17.02 17.54 18.05
4.00 13.75 14.59 15.37 16.13 16.84 17.53 18.19 18.83 19.45 20.05 20.63
4.50 15.47 16.41 17.30 18.14 18.95 19.72 20.47 21.18 21.88 22.55 23.21
5.00 17.19 18.23 19.22 20.16 21.05 21.91 22.74 23.54 24.31 25.06 25.78
Table 2 - Burner PG30TN
8
BAR
GP H 1 0 1 2 1 4
3.50 13.45 14.74 15.92
4.00 15.37 16.84 18.19
4.50 17.30 18.95 20.47
5.00 19.22 21.05 22.74
5.50 21.14 23.16 25.01
6.00 23.06 25.26 27.29
6.50 24.98 27.37 29.56
7.00 26.91 29.47 31.84
INSTALLATION
LIGHT OIL PUMPS
SUNTEC AS57C
Suction height: 0.5 bar
Advised value to prevent
air separation from oil: 0.35 bar
Rated speed: max. 2850 rpm
Operation viscosity: from 2 to 12 cSt
Inlet pressure: max. 2 bar
DELTA VM2RL2
Suction height: 0.5 bar
Advised value to prevent
air separation from oil: 0.35 bar
Rated speed: max. 3500 rpm
Operation viscosity: from 1.5 to 50 cSt
Inlet pressure: 0.7 - 1.5 bar
Fig. 7
Key
1 Pressure regulator
2 Manometer
3 Vacuum gauge
4 Solenoid valve
5 Nozzle
6 Supply to nozzle
7 Suction
8 Return
SUNTEC AT2 45C
Suction height: 0.45 bar
Advised value to prevent
air separation from oil: 0.35 bar
Rated speed: max. 3600 rpm
Operation viscosity: from 2 to 12 cSt
Inlet pressure: max. 2 bar
1 Low pressure regulation (first stage)
2 Manometer
3 Vacuum gauge
4 Lockoout solenoid valve
4a High-low pressure solenoid valve
5 To nozzle
6 High pressure regulation (second stage)
7 Suction
8 Return (with internal by-pass plug)
Fig. 8
Fig. 9
INSTALLATION
9
AIR FLOW ADJUSTMENT
+
VBS
-
Burner G18SP
VBS
Fig. 10
Fig. 10
Fig. 11
Fig. 11
Loose the screw VBS and rotate the air damper in the desired
position, to set the air flow.
At the end of settings, tight the screw VBS.
Burners PG25SP - PG30TN
Loose the screw VBS and set the air flow, working directly on the
air damper.
At the end of settings, tight the screw VBS.
COMBUSTION HEAD ADJUSTMENT
The burner is factory-adjusted with the combustion head in the “max” position (maximum output).
Move back the combustion head towards the “MIN” position, turning the screw VRT clockwise.
G18SP
Fig. 12
Fig. 12
PG25SP - PG 30TN
10
Fig. 12a
Fig. 12a
INSTALLATION
PART II: OPERATION MANUAL
LIMITATIONS OF USE
THE BURNER IS AN APPLIANCE DESIGNED AND CONSTRUCTED TO OPERATE ONLY AFTER BEING CORRECTLY
CONNECTED TO A HEAT GENERATOR (E.G. BOILER, HOT AIR GENERATOR, FURNACE, ETC.), ANY OTHER USE IS
TO BE CONSIDERED IMPROPER AND THEREFORE DANGEROUS.
THE USER MUST GUARANTEE THE CORRECT FITTING OF THE APPLIANCE, ENTRUSTING THE INSTALLATION OF IT
TO QUALIFIED PERSONNEL AND HAVING THE FIRST COMMISSIONING OF IT CARRIED OUT BY A SERVICE CENTRE
AUTHORISED BY THE COMPANY MANUFACTURING THE BURNER. A FUNDAMENTAL FACTOR IN THIS RESPECT IS
THE ELECTRICAL CONNECTION TO THE GENERATOR’S CONTROL AND SAFETY UNITS (CONTROL THERMOSTAT,
SAFETY, ETC.) WHICH GUARANTEES CORRECT AND SAFE FUNCTIONING OF THE BURNER.
THEREFORE ANY OPERATION OF THE APPLIANCE MUST BE PREVENTED WHICH DEPARTS FROM THE
INSTALLATION OPERATIONS OR WHICH HAPPENS AFTER TOTAL OR PARTIAL TAMPERING WITH THESE (E.G.
DISCONNECTION, EVEN PARTIAL, OF THE ELECTRICAL LEADS, OPENING THE GENERATOR DOOR, DISMANTLING
OF PART OF THE BURNER).
DO NOT EVER OPEN OR DISMANTLE ANY COMPONENT OF THE MACHINE.
OPERATE ONLY THE MAIN SWITCH, WHICH THROUGH ITS EASY ACCESSIBILITY AND RAPIDITY OF OPERATION
ALSO FUNCTIONS AS AN EMERGENCY SWITCH, AND ON THE RE-SET BUTTON.
IN THE EVENT OF REPEATED LOCKOUTS, DO NOT PERSIST WITH THE RE-SET BUTTON AND CONTACT QUALIFIED
PERSONNEL WHO WILL PROCEED TO ELIMINATE THE MALFUNCTION.
WARNING: DURING NORMAL OPERATION THE PARTS OF THE BURNER NEAREST TO THE GENERATOR (COUPLING
FLANGE) CAN BECOME VERY HOT, AVOID TOUCHING THEM SO AS NOT TO GET BURNT.
OPERATION
11
PART III: MAINTENANCE
At least once a year carry out the following maintenance procedures.
If servicing is on a seasonal basis, it is recommended at the end of the season; routine sevice should be carried out every
months.
Note: Any operation on the burner must be carried out with the main electricity switched off.
PERIODICAL SERVICING
- Clean and examine the oil filter cartridge and replace it if necessary;
- Examine the condition of the oil flexìble pipeworks and check for possible leaks;
- Clean and examine the filter inside the oil pump;
- Dismantle, examine and clean the combustion head. When reassembling respect the measures reported in table 3.
- Examine the ignition electrodes and their ceramic insulators, adjust and replace if necessary (fig. 13);
- Dismantle and clean the oil nozzle (important: use solvents for cleaning and not metal utensils).
At the end of the maintenence procedures replace the burner, light it and check the shape of the flame:if in doubt replace the
nozzle(s);
where the burner is used intensively it is recommended to replace the nozzles at the beginning of the operating season;
- Examine and carefully clean the flame detector photoelectric cell and replace if necessary. If in doubt light the burner and
then check the detector circuit as shown in Fig. 14.
Correct position of electrodes and combustion
head (G18SP)
Prepare a stable surface where lying the burner
during maintenance.
To gain access to the combustion head and to the
nozzles, loose the screw which lock the blast tube
and remove it from the part that remains fixed to
the boiler.
To guarantee a good ignition, respect the
measures indicated in table 3.
Be sure to lock the screw that fix the electrodes
group, before reassembly the burner.
Removal of the combustion head
(PG25SP - PG30TN)
- Remove the cap C;
- Take out the photoresistance from its housing;
- Unscrew the floating pipe-fitting E from the oil
pipe, using 2 spanners, to avoid to loose the pipefirrings from the distribution block;
- Remove the screws V and unscrew the screw
VRT until the threaded rod AR is free;
Remove the complete assembly as shown in
figure 13a.
Note: To re-assemble reverse the order of
procedures descibed above.
AR
VRT
R
Table 3
Fig. 13
G1 8 SP
PG28SP
PG30TN
ABCD
60°6446
45°10546
60°8446
45°12546
60°8446
45°12546
C
Fig. 13a
C
12
V
MAINTENANCE
CHECK OF THE IONIZATION CURRENT
To check the detector signal follow the
prcedure shown in fig. 14.
If the signal is not within the prescribed
range, check the electrical contacts; check
also that the combustion head is clean and
the photoelectric sensor is correctly
positioned. Replace it if necessary.
TERMINAL BLOCK MC
Scale µA DC
Minimum current .7067 ( witt )Tj/TT3 1 Tf52.9337 (-0.0101 Tc-0.0061 Tw[flame:)-6187.8(65e µT)]TJ -10 -1523 TD-0.0002 Tc-0.0516 TwMaxnimum current 467067 ( witoutt )Tj/TT3 1 Tf33.5337 (03 Tc0.001 Tw[flame:)-4346.7(5e µT)]TJ -1.084 -1533-3 TD-0.0002 Tc-0.0376 TwMaxnimum(posibale current )Tj/TT2 1 Tf-1.93337 (00.0547067 ( witt )Tj/TT3 1 Tf52.9337 (-0.0006 Tc[flame:)-19606.6200e µT)]TJ/TT5 1 Tf8 0 0 8279.626 24.88 Tm0.0071 TcMAINTENANCE
Fig. 14
F
AULA
S FINDING T
ABLET
13
ELECTRICAL DIAGRAM code 01-369 BURNER G18SP
1 - Electric supply 230V 50Hz 2N a.c.
2 - Don't reverse Phase and Neutral
3 - Make sure that the burner is properly hearted
CO Time counter
EVG1 Light oil solenoid valve Ist stage
EVG2 Light oil solenoid valve II
F Fuse
FR Photoresistor
IL Main switch
L1 Phase
LF Burner operation light
LB Burner lockout light
LOA24/BOA64 Flame monitor device
MA Power supply terminal block
MV Fan motor
N Neutral
ST Thermostats or pressure switches
TA Ignition transformer
TS Boiler thermostat or pressure switch
nd
stage
ELECTRICAL DIAGRAM code 04-575 BURNER PG25SP
1 - Electric supply 230V 50Hz 2N a.c.
2 - Don't reverse Phase and Neutral
3 - Make sure that the burner is properly hearted
14
MAINTENANCE
EVG1 Light oil solenoid valve
F Fuse
FR Photoresistor
IL Main switch
L Phase
LFA Burner operation light
LB Burner lockout light
LEVG1 Opening of EVG1 signalization light
LOA24/BOA64 Flame monitor device
LTA Ignition transformer signalization light
MA Power supply terminal block
MC Terminal block for burner components connection
MV Fan motor
N Neutral
ST Thermostats or pressure switches
TA Ignition transformer
ELECTRICAL DIAGRAM code 04-574 BURNER PG30TN
1 - Electric supply 230V 50Hz 2N a.c.
2 - Don't reverse Phase and Neutral
3 - Make sure that the burner is properly hearted
EVG1 Light oil solenoid valve Ist stage
EVG2 Light oil solenoid valve II
F Fuses
FR Photoresistor
IL Main switch
L Phase
LF Burner operation light
LB Burner lockout light
LEVG1 EVG1 opening signalization light
LEVG2 EVG2 opening signalization light
LOA24/BOA64 Flame monitor device
MA Power supply terminal block
MC Terminal block for burner components connection
LTA Ignition transformer light
MV Fan motor
N Neutral
ST Thermostats or pressure switches
TA Ignition transformer
nd
stage
MAINTENANCE
15
SPARE PARTS BURNER G18SP
POS. DESCRIPTION CODE POS. DESCRIPTION CODE
1
HOUSING 3010019 19 BLAST TUBE 3090055
2
CONDENSER 6030004 20 COMBUSTION HEAD 3060115
3
MOTOR 2180009 21 ELECTRODE SUPPORT 2280016
4
FLAME CONTROL DEVICE LOA24 2020445 22 GASKET 2110031
5
SOCKET FOR LOA24 2030409 23 FLANGE 2100011
6
SUPPORT BRACKET 2430004 24 DISTRIBUTION MOVING BLOCK 2320012
7
TRANSFORMER 2170106 25 LIGHT OIL PIPE 2220125
8
BURNER CASING 2050228 27 CONNECTOR 6200008
9
FAN 2150004 28 SUNTEC AT2 45C PUMP 2590147
10
COMPLETE JOINT 254… 29 FILTER 2090016
13
ATOMIZER 3020020 30 FLEXIBLE HOSE 2340001
14
NOZZLE 261.. 31 SOLENOID VALVE COIL 2580402
15
ATOMIZER SUPPORT 2280006 32 AIR DAMPER 1010702
16
BOTTOM 2010102 33 PHOTORESISTOR QRB1B 2510008
17
IGNITION CABLES 6050122 34 ADJUSTING SCREW 2320011
18 IGNITION ELECTRODE 2080203
16
MAINTENANCE
SPARE PARTS BURNERS PG25SP - PG30TN
POS. DESCRIPTION PG25SP PG30TN
1 ELECTRIC BOARD 6100086 6100086
2 THERMAL RELAY --- --3 SOCKET FOR FLAME CONTROL DEVICE 2030415 2030415
4 FLAME CONTROL DEVICE 2020445 2020445
5CONTACTOR --- --6 IGNITION TRANSFORMER 2170107 2170107
7 TOP COVER 2210103 2210103
8 LANDIS PHOTORESISTOR 2510003 2510003
9 GASKET 2110004 2110004
10 IGNITION CABLES 6050109 6050109
11 LONG ELECTRODE --- --12 SHORT ELECTRODE 2080208 2080208
13 STANDARD BLAST TUBE 3090033 3090033
13 LONG BLAST TUBE 3090035 3090035
14 DIFFUSER 3060179 3060179
15 NOZZLE 261… 261…
16 STANDARD NOZZLE SUPPORT 3020009 3020009
16 LONG NOZZLE SUPPORT 3020017 3020017
17 STANDARD LIGHT OIL PIPE 3071003 3071003
17 LONG LIGHT OIL PIPE 3071021 3071021
22 COIL FOR SUNTEC PUMP 2580402 2580402
22 COIL FOR DELTA PUMP --- 2580406
23 SUNTEC PUMP 2590147 2590144
23 DELTA PUMP --- 2590009
24 LIGHT OIL FILTER 2090016 2090016
25 FLEXIBLE HOSES 2340001 2340001
26 AIR DAMPER 2140005 2140005
30 COMPLETE JOINT FOR SUNTEC PUMP 2540109 2540109
30 COMPLETE JOINT FOR DELTA PUMP --- 2540103
33 FAN 2150006 2150006
34 BURNER CASING 2050117 2050117
35 HEAD ADJUSTING SCREW 2320503 2320503
36 ELECTRIC MOTOR 2180704 2180704
MAINTENANCE
17
APPENDIX: COMPONENTS CHARACTERISTICS
FLAME CONTROL DEVICE LANDIS LOA24 Page 18
LIGHT OIL PUMPS Page 19
LANDIS AUTOMATIC CONTROLLER LOA24
FOR LIGHT OIL BURNERS
Use
LOA... safety devices are intended for use in conjunction with
QRB... photoresistors, for lighting and controlling low capacity
forced air diesel burners with max. capacity 30 kg/h in accordance
with standard DIN 4787.
The One or two flames are lit, depending on electrical connections,
with or without post-ignition.
Performance
The controllers just need plugging in, so they can be mounted in
almost any position: on the burner, on the electrical panel or on
the control panel. The casing is made of robust heat-resistant
plastic and contains:
- the thermic programmer operating a multiple switch control
system with ambient temperature compensator
- flame signal amplifier with flame relay
- warning light indicating lockout and associated sealed reset
button.
The plug-in socket, also made of robust heat-resistant plastic,
contains the 12 terminals and also:
- 3 neutral terminals, ready wired up to terminal 2
- 4 earth terminals for earthing the burner
- 2 supplementary terminals numbered “31” and “32”.
The socket has two openings at the bottom for the leads; 5 others
with threaded connection for cable holders PG11 or
3/4UNP for non-metallic sleeves are located on a mobile stuffing
box, one on either side and 3 on the front.
There are two flexible metal tongues on the sides of the socket
for mounting.
To dismantle it only requires gentle pressure with a screw driver
in the slot of the mounting guide.
The base dimensions of the socket are exaclty the same as for
types LAB/LAI and there is no difference in the diameter of the
reset button, the two mounting screws and the flange of the
burner earth.
Safety at low voltage levels
Safety devices against any reduction in the mains voltage
operate on a special electronic circuit which, in the event of the
power supply falling below 165V~, stops the burner switching on
without releasing the fuel and locks out the apparatus.
Wiring diagram of the programme
To ensure correct wiring it is essential to observe local standards
and follow the instructions of the burner manufacturer with
regard to assembly and start-up.
t2 Safety time
t3n Post-ignition time
t4 Interval between the flame lighting and energising of
solenoid 2a at terminal 5
Internal layout
AL Optical alarm
BV. Fuel valve
EK Reset button
FR Flame relay
fr Flame relay contacts
FS Flame alight signal
G Burner motor
K Flame relay anchor to delay the tzl command in the
event of a premature flame signal or endorse it where
the signal is correct.
OH diesel pre-heater
OW Operational all-clear contact
QRB Photo-resistant cell (flame detector)
R Thermostat or pressure switch
TZ Thermo-electric programmer (bimetal system)
tz.. TZ contacts
V Flame signal amplifier
W Safety thermostat or pressure switch
Z Ignition transformer
These are safety devices
To tamper with them in any way may have unforeseeable
consequences !
Do not open them!
Program's key:
Controller output signals
Required input signals
A’ Burner start up with diesel pre-heater OH
A Burner start-up without diesel pre-heater
B Flame lit
C Normal operation
D Normal stop through R
tw Oil pre-heating time until operational all clear given
through contact OW
tl Pre-purge time
t3 Pre-ignition time
18
APPENDIX
Technical characteristics
Voltage 220V-15%..240V+10% or 100V
-15%...110V+10%
Frequency 50...60Hz +/- 6%
External fuse max.10A slow action
Contact flow:
- terminal 1 5A
- terminal 3 5A (incl.capacity absorbed by motor and pre-
heater)
Terminal flow:
- terminals 4, 5 &10 1A
- terminals 6&7 2A
- terminal 8 5A
Absorbed cap 3VA
Protection IP40
Premitted temp:
operational -20...+60°C
transport & storage -50...+60°C
Emplacement any
Mass (weight) controller 180 g
socket 50 g
AGK accessories 12 g
DELTA “VM” PUMPS
In the VM series of DELTA pumps the pressurised flow of oil P
is shut off by a built in solenoid and may therefore be switched
on for startup of the motor pre-purge) or off before the motor
itself switches off (flame goes out instantly when the spray from
the nozzle stops).
Oil pressure is regulated and kept constant by the piston valve
which is activated when the light comes on to signify that the oil
discharged exceeds nozzle capacity and is being returned to
the tank (twin-pipe system) or being returned to the suction
pipe through a bypass in the pipe (single-pipe system).
In this model both the single-pipe and twin-pipe versions have
automatic priming. It is recommended that in eiether case a
standard external filter be installed.
All twin-pipe models can be used as single-pipe systems with
the simple removal of a nylon plug and by closing the return
pipe.
Technical data
Oil viscosity 1,5÷50 cSt
Oil temperature 50°C
Pressure range 2÷10 bars
4÷15 bars
8÷20 bars
10÷125 bars
Suction vacuum max.0,5 bars
Suction pressure max.0,7 bars
Return pressure max.1,5 bars
Rotational speed max.3500 rpm
Filter stainless steel mesh 110 micron, 20 cm
Mounting Hub 32, shaft 8 (DIN 24220)
On request: flange, hub 54, shaft 7/16"
2
Commands in the event of operational interference
- Stray light/premature ignition
During pre-purge and/or pre-ignition there should be no flame
signal. If there is a flame signal, eg from premature ignition due
to a faulty solenoid, external light, short circuit in the photoresistor
or wiring, malfunction in the flame signal amplifier, etc., at the
end of pre-purge and safety time the controller locks out the
burner and stops the fuel flow even during safety time.
- Absence of flame
If there is no flame at the end of safety time the controller locks
out immediately.
- Absence of flame during operation
If there is no flame during operation the controller cuts off the
supply of fuel and automatically initiates a fresh start-up
programme: at the end of t4 the start-up programme ends.
Whenever there is a safety stop, terminals 3-8 and 11 are deenergised in less than 1 second; at the same time a remote
lockout signal is transmitted through terminal 10. The controller
can be reset after c. 50 seconds.
Hydraulic connections
Return suction 1/8"G 1/4"G (1/8"G only Vl,V2)
Delivery 1/8"G vacuum gauge 1/8"G
Rate VMl, VM2: max.0,1 Nm; VM3: 0,18 Nm
APPENDIX
19
SUNTEC AS oil pumps
- Oil
- Flow up to 75 1/h (c.600,000 kcal/h - 700 kW)
- Twin-pipe system
- Single-pipe system
Technical data
Mounting On flange or hub in acccordance with
standards DIN 24220 and ISO/TC 109 SC
3 DP 5062F
Threads round-headed in accordance with ISO R
228-NFE 03005(DIN2S9)
Supply and return R 1/4"
Delivery R 1/8"
Pressure R 1/8"
On cover R 1/8"
Valve function Pressure control and cut out
2
120 micron
Filter area 34 cm
,
Shaft 8 mm in acc. with DIN 24220
Plug Inserted
By-pass Insert for twin-pipe, remove for single-
pipe system
Weight 1,8 kg - hub-mounted
1,9 kg - flange-mounted
Rotation and delivery position (view from shaft side)
A - clockwise rotation/RH delivery
C - anticlockwise rotation/LH delivery
Hydraulic data
Operational pressure range
7-14 bars adjustable
9-15 bars adjustable (for AS67)
Calibration 9 bars at factory
Viscosity at 20°C 2-12mm2/s (cSt)
Supply pressure max.2 bars
Return pressure max.2 bars
Suction max. vacuum 0,5 bars;
recommended 0,35 bars to
avoid separation of oil and gas
Rotational speed 2850 rpm
Max. oil temperature 70°C
Torque 1,0cm - daN
Absorbed capacity see motor curves
Electrical data
Solenoid voltage 20V +10%-15%; 50/60Hz
Absorbed capacity 9VA
Length of coil cable 600mm
Length of plug cable 600mm
Cable Ø6 mm with cross section of
0,75 mm
2
A Closed solenoid valve
B Open solenoid valve (NO)
C Closed return
1 Solenoid valve
2 Pressure regulating valve
3 Pressure adjustment
4 To nozzle
5 Pressure gauge port
Oil under suction
Oil under pressure
By-passed oil returned to
tank or to suction
6 Escape valve
7 Shaft seal
8 Vacuum gauge port
9 By-pass plug “P”
10 Gear set
11 Inlet
12 Return
13 Back to suction
20
Twin pipe installation Single pipe installation (remove the by-pass plug “P”)
APPENDIX
Operation
The gear-set draws oil from the tank through the built-in filter and transfers it to the valve that regulates the oil pressure or tne nozzle
line. All oil which does not go through the nozzle line will be dumped through the valve back to the return line or, if it is a one-pipe
installation, back to the suction port in the gear-set.
The hydraulic valve has a cut-off function besides regulating the nozzle pressure. Contrary to the AN pump, the valve has no bleed
slot. The function of the bleed slot is taken over by the solenoid valve. When the solenoid valve is non-activated, the by-pass channel
between the pressure and return sides of the valve is open. No pressure will then be built up to open the valve. It does not matter
which speed the gear set has. When the solenoid is activated, this by-pass channel will be closed and because of the full speed
of the gear set, the pressure necessary to open the valve will be built up very rapidly which gives a very sharp cut-on function.
When the burner stops, the solenoid opens the by-pass at the same moment which drains all the oil down to the return and the
nozzle valve closes immediately. This gives a very sharp cut-off function.
The cut-on and off can be regulated regardless of motor speed and has an extremely fast response. The torque requirement is low
up to full motor speed.
SUNTEC AT oil pumps
- Oil
- Twin-pipe system
- Single-pipe system
- Twin feed
Technical data
Mounting On hub Ø 32mm, in acccordance with
standards DIN 24220
Threads round-headed in accordance with ISO R
228-NFE 03005 (DIN259)
Supply and return R 1/4"
Delivery R 1/8"
Pressure R 1/8"
On cover R 1/8"
Valve function Pressure regulation
2,
Filter Area 34 cm
mesh 120 micron
Shaft Ø 8 mm in acc. with DIN 24220
By-pass Insert for twin-pipe, remove for single-
pipe system
Weight 1,3 kg
Rotation and delivery position (viewed from shaft side)
D - counterclockwise rotation/right delivery
C - counterclockwise rotation/left delivery
Hydraulic data
Operational pressure range to the nozzle
4 - 25 bar
Calibration 22 bars at factory
Viscosity at 20°C 2-12mm
2
/s (cSt)
Supply pressure max.2 bars
Return pressure max.2 bars
Suction max. vacuum 0,35 bars,
recommended to
avoid separation of oil and gas
Rotational speed 3600 rpm
Max. oil temperature 70°C
Torque 1,0 cm - daN
Electrical data
Solenoid voltage 220V +10%-15%; 50/60Hz
Absorbed capacity 9VA
Protection IP50
Max. pressure 25 bar
Approved by TUV n.1 x 23985S
PUMP OPERATING PRINCIPLE
The gear set draws oil from the tank through the built-in filter and transfers it to the nozzle line via the cut off solenoid valve.
Pressure regulation is assured by two spool valves, one for each pressure mode.
In one pipe operation, oil which is not required at the nozzle is returned directly to the gear inlet via the pressure regulating
valves and the suction line flow is equal to the nozzle flow.
In two pipe operation, the by-pass plug must be fitted in the return port, which ensures that the oil dumped by the regulating
valves is returned to the tank and the suction line flow is equal to the gear set capacity.
Purging on 2 pipe installations is assured by a bleed flat on the pistons. On 1 pipe installations, a high pressure connection
must be loosened until the air is evacuated from the system.
Switching between low and high pressure is assured by a normally open by-pass solenoid valve. When this solenoid is non
activated, a by-pass channel is open, allowing the normal operation of the low pressure valve which sets the nozzle pressure.
When this solenoid is activated, the by-pass channel is closed, thus pressure will build up on both sides of the low pressure
valve eliminating its effect and the high pressure valve now determines the nozzle pressure.
The blocking solenoid valve is of the normally closed type and is situated in the nozzle line.
This design ensures extremely fast response and the switching can be selected according to the burner operating sequence
independently from the motor speed.
When the solenoid is non-activated, the valve is closed and all oil pressurised by the gear set passes through the regulators
to suction or the return line, depending upon the pipe arrangement.
As soon as the solenoid is activated, oil passes to the nozzle line at the pressure set by the pressure regulating valve.
APPENDIX
21
A Closed by-pass solenoid valve
B Opened by-pass solenoid valve
C Opened cut-off solenoid valve
D Closed cut-off solenoid valve
1 Manometer plug
2 To nozzle
3 Shaft seal
Oil under suction
Oil under pressure
By-passed oil returned to
tank or to suction
4 Return to suction
5 By-pass plug
6 Return (twin pipe installation)
7 Suction (twin pipe installation)
8 Vacuum gauge plug
9 Gear
10 Hi-pressure regulator with control screw
11 Lo-pressure regulator with control screw
Twin pipe installation Single pipe installation (remove the
by-pass plug “P”)
22
APPENDIX
23
Via C. Colombo, 9 - 35011 Campodarsego (PD) Italy
Tel. +39-049-9200944 - Fax +39-049-9200945-9201269
Internet: www.cibunigas.it - E mail: cibunigas@cibunigas.it
Loading...