Unigas PN1025, PN1040 Manual Of Installation - Use - Maintenance

PN1025
PN1030
PN1040
Progressive, Fully-modulating
Heavy oil Burners
MANUAL OF INSTALLATION - USE - MAINTENANCE
BURNERS - BRUCIATORI - BRULERS - BRENNER - QUEMADORES - ГОРЕЛКИ
M039117CC Rel. 3.0 07/2022
DANGERS, WARNINGS AND NOTES OF CAUTION
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 INFORMATION ABOUT OPERATING AND USE RESTRICTIONS, IN THE SECOND SECTION
OF THIS MANUAL. WE HIGHLY RECOMMEND TO READ IT.
CAREFULLY KEEP THIS MANUAL FOR FUTURE REFERENCE.
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.
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 cutout 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 and accessories.
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.
 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.The occurrence of any
of the following circustances may cause explosions, polluting unburnt
gases (example: carbon monoxide CO), burns, serious harm to people,
animals and things:
- Failure to comply with one of the WARNINGS in this chapter
- Incorrect handling, installation, adjustment or maintenance of the burner
- Incorrect use of the burner or incorrect use of its parts or optional supply
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 a burner shut-down, reser the control box by means of the
RESET pushbutton. If a second shut-down takes place, call the Technical Service, without trying to RESET further.
 The unit shall be operated and serviced by qualified personnel only, in
compliance with the regulations in force.
3) GENERAL INSTRUCTIONS DEPENDING ON FUEL USED
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.
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.
2
3b) FIRING WITH GAS, LIGHT OIL OR OTHER FUELS
DIRECTIVES AND STANDARDS
Gas burners
European directives
-Regulation 2016/426/UE (appliances burning gaseous fuels)
-2014/35/UE (Low Tension Directive)
-2014/30/UE (Electromagnetic compatibility Directive)
-2006/42/EC (Machinery Directive)
Harmonized standards
-UNI EN 676 (Automatic forced draught burners for gaseous fuels)
-EN 55014-1 (Electromagnetic compatibility- Requirements for house
hold appliances, electric tools and similar apparatus)
-EN 60204-1:2006 (Safety of machinery – Electrical equipment of
machines.)
-CEI EN 60335-1 (Specification for safety of household and similar
electrical appliances);
-CEI EN 60335-2-102 (Household and similar electrical appliances.
Safety. Particular requirements for gas, oil and solid-fuel burning
appliances having electrical connections).
-UNI EN ISO 12100:2010 (Safety of machinery - General principles for
design - Risk assessment and risk reduction);
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.
Light oil burners
European directives
-2014/35/UE (Low Tension Directive)
-2014/30/UE (Electromagnetic compatibility Directive)
-2006/42/EC (Machinery Directive)
Harmonized standards
-UNI EN 267-2011(Automatic forced draught burners for liquid fuels)
-EN 55014-1 (Electromagnetic compatibility- Requirements for house
hold appliances, electric tools and similar apparatus)
-EN 60204-1:2006 (Safety of machinery – Electrical equipment of
machines.)
-CEI EN 60335-1 (Specification for safety of household and similar
electrical appliances);
-CEI EN 60335-2-102 (Household and similar electrical appliances.
Safety. Particular requirements for gas, oil and solid-fuel burning
appliances having electrical connections).
-UNI EN ISO 12100:2010 (Safety of machinery - General principles for
design - Risk assessment and risk reduction);
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.
Heavy oil burners
European Directives
-2014/35/UE (Low Tension Directive)
-2014/30/UE (Electromagnetic compatibility Directive)
-2006/42/EC (Machinery Directive)
Harmonized standards
-UNI EN 267(Automatic forced draught burners for liquid fuels)
-EN 55014-1 (Electromagnetic compatibility- Requirements for house
hold appliances, electric tools and similar apparatus)
-EN 60204-1:2006 (Safety of machinery – Electrical equipment of
machines.)
-CEI EN 60335-1 (Specification for safety of household and similar
electrical appliances);
-CEI EN 60335-2-102 (Household and similar electrical appliances.
Safety. Particular requirements for gas, oil and solid-fuel burning
appliances having electrical connections).
-UNI EN ISO 12100:2010 (Safety of machinery - General principles for
design - Risk assessment and risk reduction);
3
Burner data plate
For the following information, please refer to
the data plate:
 burner type and burner model: must be
reported in any communication with the
supplier
 burner ID (serial number): must be reported in any communication with the supplier
 date of production (year and month)
 information about fuel type and network
pressure
Gas - Light oil burners
European Directives
-Regulation 2016/426/UE (appliances burning gaseous fuels)
-2014/35/UE (Low Tension Directive)
-2014/30/UE (Electromagnetic compatibility Directive)
-2006/42/EC (Machinery Directive)
Harmonized standards
-UNI EN 676 (Automatic forced draught burners for gaseous fuels)
-UNI EN 267(Automatic forced draught burners for liquid fuels)
-EN 55014-1 (Electromagnetic compatibility- Requirements for house
hold appliances, electric tools and similar apparatus)
-EN 60204-1:2006 (Safety of machinery – Electrical equipment of
machines.)
-CEI EN 60335-1 (Specification for safety of household and similar
electrical appliances);
-CEI EN 60335-2-102 (Household and similar electrical appliances.
Safety. Particular requirements for gas, oil and solid-fuel burning
appliances having electrical connections).
-UNI EN ISO 12100:2010 (Safety of machinery - General principles for
design - Risk assessment and risk reduction);
Type
Model
Year
S.Number
Output
Oil Flow
Fuel
Category
Gas Pressure
Viscosity
El.Supply
El.Consump.
Fan Motor
Protection
Drwaing n°
P.I.N.
-----------------
SYMBOLS USED
WARNING!
DANGER!
Gas - Heavy oil burners
European directives:
-Regulation 2016/426/UE (appliances burning gaseous fuels)
-2014/35/UE (Low Tension Directive)
-2014/30/UE (Electromagnetic compatibility Directive)
-2006/42/EC (Machinery Directive)
Harmonized standards
-UNI EN 676 (Automatic forced draught burners for gaseous fuels)
-EN 55014-1 (Electromagnetic compatibility- Requirements for house
hold appliances, electric tools and similar apparatus)
-EN 60204-1:2006 (Safety of machinery – Electrical equipment of machines.)
-CEI EN 60335-1 (Specification for safety of household and similar electrical appliances);
-CEI EN 60335-2-102 (Household and similar electrical appliances.
Safety. Particular requirements for gas, oil and solid-fuel burning
appliances having electrical connections).
-UNI EN ISO 12100:2010 (Safety of machinery - General principles for
design - Risk assessment and risk reduction);
WARNING!
Failure to observe the warning may result
in irreparable damage to the unit or
damage to the environment
Failure to observe the warning may result
in serious injuries or death.
Failure to observe the warning may result
in electric shock with lethal consequences
Figures, illustrations and images used in this manual may differ in appearance from
the actual product.
BURNER SAFETY
The burners - and the configurations described below - comply with the
regulations in force regarding health, safety and the environment. For
more in-depth information, refer to the declarations of conformity that are
an integral part of this Manual.
DANGER! Incorrect motor rotation can seriously
damage property and injure people.
Residual risks deriving from misuse and prohibitions
Industrial burners
The burner has been built in order to make its operation safe; there are,
however, residual risks.
European directives
-Regulation 2016/426/UE (appliances burning gaseous fuels)
-2014/35/UE (Low Tension Directive)
-2014/30/UE (Electromagnetic compatibility Directive)
-2006/42/EC (Machinery Directive)
Do not touch any mechanical moving parts with your hands
or any other part of your body. Injury hazard
Do not touch any parts containing fuel (i.e. tank and pipes).
Scalding hazard
Do not use the burner in situations other than the ones provided for in the data plate.
Do not use fuels other than the ones stated.
Do not use the burner in potentially explosive environments.
Do not remove or by-pass any machine safety devices.
Do not remove any protection devices or open the burner
or any other component while the burner is running.
Do not disconnect any part of the burner or its components
while the burner is running.
Untrained staff must not modify any linkages.
Harmonized standards
-EN 55014-1 (Electromagnetic compatibility- Requirements for house
hold appliances, electric tools and similar apparatus)
-EN 746-2 (Industrial thermoprocessing equipment - Part 2: Safety requirements for combustion and fuel handling systems)
-UNI EN ISO 12100:2010 (Safety of machinery - General principles for
design - Risk assessment and risk reduction);
-EN 60204-1:2006 (Safety of machinery – Electrical equipment of machines.)
-EN 60335-2 (Electrical equipment of non-electric appliances for household and similar purposes. Safety requirements)
After any maintenance, it is important to restore the protection devices before restarting the machine.
All safety devices must be kept in perfect working order.
Personnel authorized to maintain the machine must always
be provided with suitable protections.
ATTENTION: while running, the parts of the burner near
the generator (coupling flange) are subject to overheating.
Where necessary, avoid any contact risks by wearing suitable PPE.
4
C.I.B. UNIGAS - M039117CC
PART I: INSTALLATION
Burner model identification
Burners are identified by burner type and model. Burner model identification is described as follows..
Type PN1025
(1)
Model
N-.
(2)
PR.
(3)
S.
(4)
*.
(5)
A.
(6)
(1) BURNER TYPE
PN1025 - PN1030 - PN1040
(2) FUEL
N - Heavy oil, viscosity <= 50cSt (7° E) @ 50° C
E - Heavy oil, viscosity <= 110cSt (15°E) @ 50° C
D - Heavy oil, viscosity <= 400cSt (50° E) @ 50° C
P - Petroleum, viscosity 89cSt (12° E) @ 50° C
(3) OPERATION (Available versions)
PR - Progressive
MD - Fully modulating
(4) BLAST TUBE
S - Standard
(5) DESTINATION COUNTRY
* - see data plate
(6) BURNER VERSION
A - Standard
Technical Specifications
BURNER
Output
min - max kW
PN1025
PN1030
PN1040
2550 - 8700
2550 - 10600
2550 - 13000
Heavy oil
Fuel
See “Burner model identification” table
Oil viscosity
Heavy oil rate
Oil train inlet pressure
min. - max. kg/h
227 - 775
bar
227- 945
227 - 1160
4 max
400V 3N a.c. 50Hz
Power supply
Total power consumption (Heavy oil)
kW
72.5
76
84
Total power consumption (Petroleum)
kW
-
64
-
Fan motor
kW
18.5
22
30
Pump motor
kW
5.5
5.5
5.5
Pre-heater resistors (heavy oil)
kW
Pre-heater resistors (Petroleum)
kW
-
2 x 18
-
Approx. weight
kg
700
750
800
2 x 24
Protection
IP40
Operation
Progressive - Fully modulating
Operating temperature
°C
-10 ÷ +50
Storage Temperature
°C
-20 ÷ +60
Intermittent
Working service*
Heavy oil net calorific value (Hi): 9650 kcal/kg (average value).
* NOTE ON THE BURNER WORKING SERVICE: for safety reasons, one controlled shutdown must be performed every 24 hours of
continuous operation.
5
C.I.B. UNIGAS - M039117CC
Performance Curves
PRESSURE IN
COMBUSTION CHAMBER (mbar)
PN1025
PN1030
30
30
20
20
10
10
0
2500
3500
4500
5500
6500
7500
0
2000 3000 4000 5000 6000 7000 8000 9000 10000 11000
8500
kW
kW
PRESSURE IN
COMBUSTION CHAMBER (mbar)
PN1040
20
10
0
2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000
kW
To get the input in kcal/h, multiply value in kW by 860.
Data are referred to standard conditions: atmospheric pressure at 1013mbar, ambient temperature at 15°C
NOTE: The performance curve is a diagram that represents the burner performance in the type approval phase or in the laboratory
tests, but does not represent the regulation range of the machine. On this diagram the maximum output point is usually reached by adjsuting the combustion head to its “MAX” position (see paragraph “Adjusting the combustion head”); the minimum output point is reached setting the combustion head to its “MIN” position. During the first ignition, the combustion head is set in order to find a
compromise between the burner output and the generator specifications, that is why the minimum output may be different from the Performance curve minimum.
6
Overall dimensions (mm)
Recommended boiler drilling jig
C.I.B. UNIGAS - M039117CC
7
Burner flange
AL*
AA
AD
BS*
BL*
BB
C
CC
D
DD
E
F
G
H
K
L
M
N
O
P
RR
SS
T
W
Y
Z
PN1025 1960 2154
AS*
377
25
350
544
641
1560
680
1574
497
680
894
422
472
660
815
M16
651
460
460
265
80
86
1145
379
330
PN1030 1938 2132
377
25
350
544
657
1538
680
1574
497
680
894
422
472
660
815
M16
651
460
460
265
80
86
1145
379
330
PN1040 1970 2164
377
25
350
544
657
1570
680
1574
497
680
894
514
564
660
815
M16
651
460
460
265
80
86
1145
404
330
*AS/BS = measure referred to standard blast tube
*AL/BL = measure referred to extended blast tube
C.I.B. UNIGAS - M039117CC
INSTALLING THE BURNER
Packing
Burners are despatched in wooden crates whose dimensions are:730mm x 1280mm x 1020mm (L x P x
H)
Packing cases of this kind are affected by humidity and are not suitable for stacking. The following are
placed in each packing case:
H
z
burner;
gasket to be inserted between the burner and the boiler;
z oil flexible hoses;
z oil filter;
z envelope containing this manual.
To get rid of the burner’s packing, follow the procedures laid down by current laws on disposal of materials.
z
Handling the burner
P
L
Eyebolts
ATTENTION! the lfting and moving operations must be carried out by
specialised and trained personnel. If these operations are not carried out
perfectly, there is the residual risk of the burner to overturn and fall
down.
As for moving the burner, use means suited for the weight to sustain
(see paragraph “Technical specifications”).
The burner is provided with eyebolts, for handling operations.
Fitting the burner to the boiler
To perform the installation, proceed as follows:
1 drill the furnace plateas decribed in paragraph (“Overall dimensions”);
2 place the burner towards the furnace plate: lift and move the burner by means of its eyebolts placed on the top side (see”Lifting and
moving the burner”);
3 screw the stud bolts (5) in the plate holes, according to the burner’s drilling plate described on paragraph “Overall dimensions”;
4 place the ceramic fibre plait on the burner flange;
5 install the burner into the boiler;
6 fix the burner to the stud bolts, by means of the fixing nuts, according to the picture below.
7 After fitting the burner to the boiler, ensure that the gap between the blast tube and the refractory lining is sealed with appropriate
insulating material (ceramic fibre cord or refractory cement).
;
Keys
4
8
1
2
3
4
5
7
Burner
Fixing nut
Washer
Ceramic fibre plait
Stud bolt
Blast tube
C.I.B. UNIGAS - M039117CC
The burner is designed to work positioned according to the picture below. Set the upper side of the burner flange in a horizontal position, in order to find the correct inclination of the pre-heating tank. For different installations, please contact the Technical Department.
1
SIDE UP
2
SIDE
DOWN
3
Key
1 Burner flange (upper side indicated)
2 Bracket
3 Pre-heating tank on the burner
Electrical connections
Respect the basic safety rules. Make sure of the connection to the earthing system. do not reverse the phase and
neutral connections. Fit a differential thermal magnet switch adequate for connection to the mains.
ATTENTION: before executing the electrical connections, pay attention to turn the plant’s switch to OFF and be
sure that the burner’s main switch is in 0 position (OFF) too. Read carefully the chapter “WARNINGS”, and the
“Electrical connections” section.
WARNING: The burner is provided with an electrical bridge between terminals 6 and 7; when connecting the
high/low flame thermostat, remove this bridge before connecting the thermostat.
IMPORTANT: Connecting electrical supply wires to the burner teminal block MA, be sure that the ground wire is
longer than phase and neutral ones.
auxiliary contacts are provided (terminals no. 507 and no. 508 of the MA terminal block) to connect an intervention system (alarm/power supply cutoff) in case of fault of the oil resistor contactor (see the wiring diagrams).
To execute the electrical connections, proceed as follows:
1 remove the cover from the electrical board, unscrewing the fixing screws;
2 to execute the electrical connections see chapter “Electrical wiring diagrams”,
3 check the direction of the fan-pump motor (see next pargraph)
4 refit the panel cover
CAUTION: adjust the thermal cut-out according to the motor rated current value.
Fan motor and pump motor direction
Once the electrical connection of the burner is performed, remember to check the rotation of the motor. The motor should rotate in an
counterclockwise direction looking at cooling fan. In the event of incorrect rotation reverse the three-phase supply and check again the
rotation of the motor.
PUMP MOTOR CONNECTION
Connecting the oil heating resistors 18 - 24 kW
400 V
400 V
230V
230V
W2
U2
V2
U1
V1
W1
W2
U2
V2
L1
L1
R1
R6
R1
R2
R5
L2
R3
R2
R6
L2
U1
R3
R5
V1
W1
R4
L3
L3
R4
L1
Fig. 1
L2
L3
L1
L2
L3
Fig. 2
Fan motor connection
In case of star-delta start-up, connect all the 6 wires, according to the sequence shown in the “Electrical wiring diagrams” chapter.
9
C.I.B. UNIGAS - M039117CC
Double-pipe and single-pipe system
The pumps that are used can be installed both into single-pipe and double-pipe systems.
Single-pipe system: a single pipe drives the oil from the tank to the pump’s inlet. Then, from the pump, the pressurised oil is driven to
the nozzle: a part comes out from the nozzle while the othe part goes back to the pump. In this system, the by-pass pulg, if provided,
must be removed and the optional return port, on the pump’s body, must be sealed by steel plug and washer.
Double-pipe system: as for the single pipe system, a pipe that connects the tank to the pump’s inlet is used besides another pipe that
connects the pum’s return port to the tank, as well. The excess of oil goes back to the tank: this installation can be considered self-bleeding. If provided, the inside by-pass plug must be installed to avoid air and fuel passing through the pump.
Burners come out from the factory provided for double-stage systems. They can be suited for single-pipe system (recommended in the
case of gravity feed) as decribed before.
To change from a 1-pipe system to a 2-pipe-system, insert the by-pass plug G (as for ccw-rotation- referring to the pump shaft).
Caution: Changing the direction of rotation, all connections on top and side are reversed.
pipeline length in meters.
SUNTEC T
Key
A
B
1
2
3
5
6
Oil under suction
Oil under pressure
To the pressure adjustment valve
Vacuum gauge port
Pressure gauge port
Suction (from the tank)
By-pass plug inserted
Bleed
Bleeding in two-pipe operation is automatic : it is assured by a bleed flat on the piston. In one-pipe operation, the plug of a pressure
gauge port must be loosened until the air is evacuated from the system.
Suntec T..
Viscosity
3 - 75 cSt
Oil temperature
0 - 150 °C
Minimum suction pressure
- 0.45 bar to prevent gasing
Maximum suction pressure
5 bar
Rated speed
3600 rpm max.
Key
1
Inlet G3/4
2
Pressure gauge port G1/4
3
Vacuum gauge port to measure the inlet vacuum G1/4
4
To pressure adjusting valve G3/4
"Note: pump with “C” rotation.
10
C.I.B. UNIGAS - M039117CC
Suntec TV Pressure governor
Pressure adjustment
Remove cap-nut 1 and the gasket 2, unscrew the lock nut 4. To increase pressure,
twist adjusting screw 3 clockwise.
To decrease the pressure, twist screw counterclockwise. Tight the lock nut 4, refit the
gasket 2 and the cap nut 1.
Key
1
Cap nut
2
Gasket
3
Adjusting screw
4
Lock nut
5
Gasket
Fig. 3
About the use of fuel pumps
z
z
z
z
z
z
z
z
Make sure that the by-pass plug is not used in a single pipe installation, because the fuel unit will not function properly and damage
to the pump and burner motor could result.
Do not use fuel with additives to avoid the possible formation over time of compounds which may deposit between the gear teeth,
thus obstructing them.
After filling the tank, wait before starting the burner. This will give any suspended impurities time to deposit on the bottom of the
tank, thus avoiding the possibility that they might be sucked into the pump.
On initial commissioning a "dry" operation is foreseen for a considerable length of time (for example, when there is a long suction
line to bleed). To avoid damages inject some lubrication oil into the vacuum inlet.
Care must be taken when installing the pump not to force the pump shaft along its axis or laterally to avoid excessive wear on the
joint, noise and overloading the gears.
Pipes should not contain air pockets. Rapid attachment joint should therefore be avoided and threaded or mechanical seal junctions preferred. Junction threads, elbow joints and couplings should be sealed with removable sg component. The number of junctions should be kept to a minimum as they are a possible source of leakage.
Do not use PTFE tape on the suction and return line pipes to avoid the possibility that particles enter circulation. These could deposit on the pump filter or the nozzle, reducing efficiency. Always use O-Rings or mechanical seal (copper or aluminium gaskets) junctions if possible.
An external filter should always be installed in the suction line upstream of the fuel unit.
Assembling the light oil flexible hoses
To connect the flexible light oil hoses to the pump, proceed as follows, according to the pump provided:
1 remove the closing nuts A and R on the inlet and return connections;
2 screw the rotating nut of the two flexible hoses on the pump being careful to avoid exchanging the inlet and return lines: see
the arrows marked on the pump that show the inlet and the return (see prevoius paragraph).
R
A
11
C.I.B. UNIGAS - M039117CC
Connections to the oil gun
Gun with the oil nozzle inside
1 Inlet
5
4
2 Return
3 Gun opening
4 Heating wire (only for high
density oil burners)
5 Cartdrige-type heater
(only for oil with viscosuty
> 110 cSt)
3
2
1
Oil manifold
5
1
2
3
Recommendations to design heavy oil feeding plants
This paragraph is intended to give some suggestions to make feeding plants for heavy oil burners. To get a regular burner operation, it
is very important to design the supplying system properly. Here some suggestions will be mentioned to give a brief description.
The term “heavy oil” is generic and summarises several chemical-physical properties, above all viscosity. The excessive viscosity
makes the oil impossible to be pumped, so it must be heated to let it flow in the pipeline; because of the low-boiling hydrocarbons and
dissolved gases, the oil must be also pressurised. The pressurisation is also necessary to feed the burner pump avoiding its cavitation
because of the high suction at the inlet. The supplying system scope is to pump and heat oil.
The oil viscosity is referred in various unit measures; the most common are: °E, cSt, Saybolt and Redwood scales. Table 3 shows thevarious unit convertions (e.g.: 132 cSt viscosity corresponds to 17.5°E viscosity).
The diagram in shows how the heavy oil viscosity changes according to its temperature.
Example: an oil with 22°E viscosity at 50°C once heated to 100°C gets a 3 °E viscosity.
As far as the pumping capability, it depends on the type of the pump that pushes the oil even if on diagram in a generic limit is quoted
at about 100 °E, so it is recommended to refer to the specifications of the pump provided.
Usually the oil minimum temperature at the oil pump inlet increases as viscosity does, in order to make the oil easy to pump. Referring
to the diagram on Fig. 5, it is possible to realise that to pump an oil with 50°E viscosity at 50°C, it must be heated at about 80°C.
Pipe heating systemП
Pipe heating system must be provided, that is a system to heat pipes and plant components to mantain the viscosity in the pumping limits. Higher the oil viscosity and lower the ambient temperature, more necessary the pipe heating system.
Inlet minimum pressure of the pump (both for supplying system and burner)
A very low pressure leads to cavitation (signalled by its peculiar noise): the pump manifacturer declares the minimum value. Therefore,
check the pump technical sheets.
By increasing the oil temperature, also the minimum inlet pressure at the pump must increase, to avoid the gassification of the oil lowboiling products and the cavitation. The cavitation compromises the burner operation, it causes the pump to break too. The diagram on
Fig. 6 roughly shows the inlet pump pressure according to the oil temperature.
Pump operating maximum pressure (both for the supplying system and burner)
Remember that pumps and all the system components through which the oil circulates, feature an upper limit. Always read the technical documentation for each component. Schemes on Fig. 8 and Fig. 9 are taken from UNI 9248 "liquid fuel feeding lines from tank to
burner" standard and show how a feeding line should be designed. For other countries, see related laws in force. The pipe dimensioning, the execution and the winding dimensioning and other construcitve details must be provided by the installer.
Adjusting the supplying oil ring
According to the heavy oil viscosity used, in the table below indicative temperature and pressure values to be set are shown.
Note: the temperature and pressure range allowed by the supplying ring components must be checked in the specifications table of the
components themselves.
12
C.I.B. UNIGAS - M039117CC
PIPELINE
PRESSURE
bar
1- 2
1- 2
1- 2
HEAVY OIL VISCOSITY AT 50 °C
cSt (°E)
> 50 (7)
> 110 (15)
< 50 (7)
< 110 (15)
< 400 (50)
PIPELINE
TEMPERATURE
°C
20
50
65
Tab. 1
Burner adjustments
The table below shows indicative values of temperature and pressure to be set on the burner devices, according to the viscosity of the
heavy oil used. The oil temperature should be set on TR resistor thermostat in order to get about 1.5°E viscosity at the nozzle.
OIL PRESSURE
OIL PRESSURE
AFTER
AFTER OIL
BURNER PUMP
METERING VALVE
(N. 24 in 3ID0023/14) (N. 33 IN 3ID0023/14)
min
max
min
max
°E
bar
bar
< 50 (7)
5
8
0.5
2
> 50 (7)
< 110 (15)
5
8
0.5
2
> 110 (15) < 400 (50)
5
8
0.5
2
TEMPERATURE OF
THE PRE-HEATING
RESISTORS
THERMOSTAT TR
min
max
°C
70
95
75
105
100
140
VISCOSITY
AT 50 °C
Tab. 2
13
TEMPERATURE OF
THE RESISTORS
SAFETY
THERMOSTAT TRS
TEMPERATURE OF
THE PLANT
ENABLING
THERMOSTAT TCI
°C
190
190
190
°C
50
60
70
C.I.B. UNIGAS - M039117CC
Viscosity units conversion table
Cinematics
viscosity
Centistokes (cSt)
Engler Degrees
(°E)
Saybolt
Seconds
Universal
(SSU)
Saybolt
Seconds
Furol (SSF)
Redwood
Seconds no.1
(Standard)
Redwood Seconds
no..2 (Admiralty)
1
1
31
--
29
--
2.56
1.16
35
--
32.1
--
4.3
1.31
40
--
36.2
5.1
7.4
1.58
50
--
44.3
5.83
10.3
1.88
60
--
52.3
6.77
13.1
2.17
70
12.95
60.9
7.6
15.7
2.45
80
13.7
69.2
8.44
18.2
2.73
90
14.44
77.6
9.3
20.6
3.02
100
15.24
85.6
10.12
32.1
4.48
150
19.3
128
14.48
43.2
5.92
200
23.5
170
18.9
54
7.35
250
28
212
23.45
65
8.79
300
32.5
254
28
87.6
11.7
400
41.9
338
37.1
110
14.6
500
51.6
423
46.2
132
17.5
600
61.4
508
55.4
154
20.45
700
71.1
592
64.6
176
23.35
800
81
677
73.8
198
26.3
900
91
762
83
220
29.2
1000
100.7
896
92.1
330
43.8
1500
150
1270
138.2
440
58.4
2000
200
1690
184.2
550
73
2500
250
2120
230
660
87.6
3000
300
2540
276
880
117
4000
400
3380
368
1100
146
5000
500
4230
461
1320
175
6000
600
5080
553
1540
204.5
7000
700
5920
645
1760
233.5
8000
800
6770
737
1980
263
9000
900
7620
829
2200
292
10000
1000
8460
921
3300
438
15000
1500
13700
--
4400
584
20000
2000
18400
--
Tab. 3
14
C.I.B. UNIGAS - M039117CC
VISCOSITY vs TEMPERATURE DIAGRAM FOR COMBUSTIBLE OILS
1000
PUMPING LIMIT
VISCOSITY (°E)
100
10
1
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
TEMPERATURE (°C)
LIGHT OIL 1,3°E AT 20°C
HEAVY OIL 2,4°E AT 50°C
HEAVY OIL 4°E AT 50°C
HEAVY OIL 7,5°E AT 50°C
HEAVY OIL 10°E AT 50°C
HEAVY OIL 13°E AT 50°C
HEAVY OIL 22°E AT 50°C
HEAVY OIL 50°C
HEAVY OIL 47°E AT 50°C
HEAVY OIL 70°E AT 50°C
HEAVY OIL 200°E AT 50°C
Fig. 4
15
C.I.B. UNIGAS - M039117CC
Indicative diagram showing the oil temperature at burner pump inlet vs. oil viscosity
Example: if the oil has a 50°E @ 50°C viscosity, the oil temperature at the pump inlet should be 80°C (see diagram).
OIL TEMPERATURE FOR PUMP FEEDING
VISCOSITY (°E a 50°C)
100
10
1
0
10
20
30
40
50
60
70
80
90
TEMPERATURE (°C)
Fig. 5
Indicative diagram showing the oil pressure according to its temperature
PUMP FEEDING PRESSURE
6
Max. for T and
TA pumps
PRESSURE (bar)
5
Max. for E ..1069
pimps
4
3
2
1
0
40
60
80
100
120
140
160
TEMPERATURE (°C)
Fig. 6
Indicative diagram showing the oil atomising temperature according to its viscosity
Example: if the oil has a 50°E @ 50°C viscosity, the oil atomising temperature should be between 145°C and 160°C (see diagram).
VISCOSITY vs. TEMPERATURE DIAGRAM
2
VISCOSITY (°E)
1.9
1.8
1.7
1.6
BEST VISCOSITY RANGE FOR A
PROPER ATOMIZATION
1.5
1.4
1.3
1.2
50
60
70
3°E AT 50°C
5°E AT 50°C
7°E AT 50°C
12°E AT 50°C
15°E AT 50°C
20°E AT 50°C
50°E AT 50°C
80
90
100
110
120
130
140
150
160
170
180
TEMPERATURE (°C)
Fig. 7
16
C.I.B. UNIGAS - M039117CC
HYDRAULIC DIAGRAMS
Fig. 8 - Hydraulic diagram 3ID0023 - Single burner configuration
17
C.I.B. UNIGAS - M039117CC
Fig. 9 - Hydraulic diagram 3ID0014 - Two or more burners configuration
18
C.I.B. UNIGAS - M039117CC
Hydraulic Diagram 3ID0014
Hydraulic Diagram 3ID0023
1 Main tank
1 Main tank
2 Bottom valve
2 Bottom valve
3 Main tank pre-heating pipe
3 Main tank pre-heating pipe
4 Oil filter (filtration, 1mm)
4 Oil filter
5 Circuit pressure regulator
5 Circuit pressure regulator
6 Manometer
6 Manometer
7 Pressure regulation by-pass valve
7 Pressure regulation by-pass valve
8 Manual valve
8 Manual valve
9 Oil pump
9 Oil pump
10 Pump pressure regulator
10 Pump pressure regulator
11 Unidirectional valve
11 Unidirectional valve
12 Service tank pre-heating resistor
12 Service tank pre-heating resistor
13 Service tank pre-heating thermostat
13 Service tank pre-heating thermostat
14 Burner consent thermostat
14 Burner consent thermostat
15 Thermometer
15 Thermometer
16 Consent pressure switch for service tank resistor
16 Consent pressure switch for service tank resistor
17 Service tank heating pipe
17 Service tank heating pipe
18 Service tank air drain valve
18 Service tank air drain valve
19 Service tank
19 Service tank
20 Oil filter
20 Oil filter
21 Fuel solenoid valve
21 Fuel solenoid valve
22 Fuel valve
22 Fuel valve
23 Burner pump flexible hoses
23 Burner pump flexible hoses
24 Burner oil pump
24 Burner oil pump
25 Pre-heating tank resistor
25 Pre-heating tank resistor
26 Pre heating tank
26 Pre heating tank
27 Oil consent thermostat
27 Oil consent thermostat
28 Heather safety thermostat
28 Pre-heating tank resistors safety thermostat
29 Thermostat for oil temperature setting
29 Thermostat for oil temperature setting
30 Tank filter
30 Pre-heating tank filter
31 Thermometer
31 Thermometer
32 Check valve
32 Check valve
34 Burner safety solenoid valve
33 Return pressure regulator
35 Oil needle drive piston
34 Burner safety solenoid valve
36 Oil rate regulator
35 Oil needle drive piston
37 Burner consent thermostat
36 Three way valve for piston drive
42 Burner start consent thermostat
37 Burner consent thermostat
43 Burner
42 Air separation bottle
45 Thermostat for pipes pre-heating pumps
43 Burner
46 Water pump for service tank pre-heating (1)
45 Thermostat for pipes pre-heating pumps
47 Water pump for main tank pre-heating (19)
46 Water pump for service tank pre-heating (1)
48 Water pre-heating balance setting valve
47 Water pump for main tank pre-heating (19)
50 Oil circulation pump
48 Valves for setting of pre-heating water balance
52 Oil ring max. pressure switch
52 Oil ring max. pressure switch
19
C.I.B. UNIGAS - M039117CC
ADJUSTING THE BURNER
Adjusting the pilot gas flow rate: gas valve Brahma EG12xR and pressure govrnor
To change the pilot gas valve flow rate, proceed as follows:
1 remove the protection on the bottom of the valve, moving it counterclockwise (see next picture);
2 rotate clockwise the nut 1 as shown below to close the valve or counterclockwise to open.
To perform a finest adjustment, act directly on the pressure governor as follows (see next figure):
3 remove the cap T: to increase the gas pressure at the outlet use a screwdriver on the screw TR as shown in the next picture. Screw
to increase the pressure, unscrew to decrease; once the regulation is performed, replace cap T.
TR
T
1
Brahma gas valve EGR*12
Pressure stabiliser
Oil thermostat adjustment
To find the thermostats, remove the cover of the burner switchboard. Adjust them using a screwdriver on the VR screw as shown in the
next picture.
NOTE: thermostat TCI is provided on burners fired with fuel oil having a 50° E at 50° C viscosity only.
TCN - Oil enabling thermostat (Fig. 10)
Adjust this thermostat to a value 10% lower than that showed
in the viscosity-temperature diagram (Fig. 4).
TRS - Resistor safety thermostat (Fig. 10)
The thermostat is set during factory testing at about 190° C.
This thermostat trips when the operating temperature exceeds
the set limit. Ascertain the cause of the malfunction and reset
the thermostat by means of the PR button.
PR
VR
VR
TR - Resistor thermostat (Fig. 10)
Adjust this thermostat to the correct value according to the
viscosity-temperature diagram (Fig. 4) and check the temperature by using a thermometer with a scale of up to 200° C
mounted on the pre-heating tank.
Fig. 10
TCI - Installation enabling thermostat (Fig. 10)
This thermostat is fitted on burners fired with oil at a viscosity
of 50° E at 50° C only. Set the thermostat according to data on
page 15.
20
VR
C.I.B. UNIGAS - M039117CC
Adjusting light oil flow rate
The light oil flow rate can be adjusted choosing a by-pass nozzle that suits the boiler/utilisation output and setting the delivery and
return pressure values according to the ones quoted on the chart below and the diagram below (as far as reading the pressure values,
see next paragraphs).
NOZZLE
DELIVERY
PRESSURE
bar
RETURN
PRESSURE MAX.
bar
RETURN
PRESSURE MIN.
bar
FLUIDICS WR2
25
19-20
7 - 9 (recommended)
BERGONZO B/C
25
18-21
7 - 9 (recommended)
FLOW RATE kg/h
DIMENSIONS
Min
Max
40
13
40
50
16
50
60
20
60
70
23
70
80
26
80
90
30
90
100
33
100
115
38
115
130
43
130
145
48
145
160
53
160
180
59
180
200
66
200
225
74
225
250
82
250
275
91
275
300
99
300
330
109
330
360
119
360
400
132
400
450
148
450
500
165
500
550
181
550
600
198
600
650
214
650
700
231
700
750
250
750
800
267
800
Tab. 4
Pressure at nozzle 25bar
Pressure at nozzle 357psi
Atomisation angle
Pressure on return
Pressure on return
Up to 100kg/h
Over 100kg/h
% Flow rate
Fig. 11
---------------Atomisation angle according to the return pressure
_________ % Flow rate
Example: as for over 100kg/h nozzles, the 80% of the nozzle flow rate can be obtained with a return pressure at about 18bar (see Fig.
11).
21
C.I.B. UNIGAS - M039117CC
22
C.I.B. UNIGAS - M039117CC
23
C.I.B. UNIGAS - M039117CC
24
C.I.B. UNIGAS - M039117CC
25
C.I.B. UNIGAS - M039117CC
Adjustments - brief description
ATTENTION: before starting the burner up, be sure that the manual cutoff valves are open. Be sure that the mains
switch is closed.
.ATTENTION: During commissioning operations, do not let the burner operate with insufficient air flow (danger of formation
of carbon monoxide); if this should happen, make the fuel decrease slowly until the normal combustion values are achieved.
Before starting up the burner, make sure that the return pipe to the tank is not obstructed. Any obstruction would
cause the pump seal to break.
IMPORTANT! the combustion air excess must be adjusted according to the values in the following chart.
Recommended combustion parameters
z
z
z
z
Fuel
Recommended (%) CO2
Recommended (%) O2
Heavy oil
11 ÷ 12
4.2 ÷ 6.2
Adjust the air and oil flow rates at the maximum output (“high flame”) first, by means of the air damper and the adjusting cam respectively.
Check that the combustion parameters are in the suggested limits.
Then, adjust the combustion values corresponding to the points between maximum and minimum: set the shape of the adjusting
cam foil. The adjusting cam sets the air/fuel ratio in those points, regulating the opening-closing of the fuel governor.
Now set the low flame output, acting on the low flame microswitch of the actuator in order to avoid the low flame output increasing
too much or the flues temperature getting too low to cause condensation in the chimney.
Oil Flow Rate Settings
1
2
check the fan motor rotation (see “Fan motor and pump motor direction” on page 9);
with the electrical panel open, prime the oil pump acting directly on the related CP contactor (see next picture): check the pump
motor rotation and keep pressing for some seconds until the oil circuit is charged;
CP
Fig. 12
3
bleed the air from the M pressure gauge port (Fig. 13) by loosing the cap without removing it, then release the solenoid starter.
Suntec T..
M
VR
4
5
6
7
8
9
Fig. 13
Before starting the burner up, drive the high flame actuator microswitch matching the low flame one (in order to let the burner operates at the lowest output) to safely achieve the high flame stage.
cam IV (stroke limitation cam) must be set a little higher than the cam III to limit the output during the first seconds the flame appears;
NOTE: cam IV must shift according to cam III.
Turn the burner on by means of its main switch A (see next picture): if the burner locks (LED B on in the control panel) press the
RESET button (C) on the control panel - see chapter “OPERATION”.
Start the burner up by means of the thermostat series and wait unitl the pre-purge phase comes to end and that burner starts up;
drive the burner to high flame stage, by means fo the thermostat TAB (high/low flame thermostat - see wiring diagrams), as far as
fully-modulating burners, see related paragraph.
Then move progressively the microswitch to higher values until it reaches the high flame position; always check the combustion
values (see next steps).
26
C.I.B. UNIGAS - M039117CC
SQM40.265 Actuator cams
Version with flame control LAL 2.25
(RD) I
High flame
(BU) II
Stand-by
(OG) III
Low flame
(YE) IV
(BK) V
(GN) VI
-
Version with flame control LMO 24.255 / 44.255
(RD) I
High flame
(BU) II
Stand-by
(OG) III
Low flame
(YE) IV
(BK) V
(GN) VI
Advance stroke limitation cam set +5° to cam (BU) II
MAN-AUTO
10 the nozzle supply pressure is already factory-set and must not be changed. Only if necessary, adjust the supply pressure as follows (see related paragraph);insert a pressure gauge into the port shown on Fig. 14 and act on on the pump adjusting screw VR
(see Fig. 13) as to get the nozzle pressure at 25bar (Fluidics/Bergonzo nozzles - see diagram on page 20-22).
Pressure gauge port
PG
RP
V
SV
Fig. 14
Fig. 18
11 in order to get the maximum oil flow rate, adjust the pressure (reading its value on the PG pressure gauge): checking always the combustion parameters, the adjustment is to be performed by means of the SV adjusting cam screw V (see picture) when the cam has reached
the high flame position.
12 To adjust the air flow rate in the high flame stage, loose the RA nut and screw VRA as to get the desired air flow rate: moving
the rod TR towards the air damper shaft, the air damper opens and consequently the air flow rate increases, moving it far from the
shaft the air damper closes and the air flow rate decreases.
Note: once the procedure is perfomed, be sure that the blocking nut RA is fasten. Do not change the position of the air damper rods.
TR
VRA
RA
13 If necessary, change the combusiton head position: to let the burner operate at a lower output, loose the VB screw and move progressively back the combustion head towards the MIN position, by turning clockwise the VRT ring nut. Fasten VB screw when the
adjustment is accomplished.
27
C.I.B. UNIGAS - M039117CC
VB
Attention! if it is necessary to change the head position, repeat the air and gas adjustments described above.
14 as for the point-to-point regulation in order to set the cam foil shape, move the low flame microswitch (cam III) a little lower than the
maximum position (90°);
15 set the TAB thermostat to the minimum (as far as fully-modulating burners, see related paragraph) in order that the actuator moves
progressively towards the low flame position;
16 move cam III towards the minimum to make the actuator move towards the low flame until the two bearings find the adjusting screw
that refers to a lower position: screw V to increase the rate, unscrew to decrease, in order to get the pressure as showed on diagram on , according to the requested rate.
17 Move again cam III towards the minimum to meet the next screw on the adjusting cam and repeat the previous step; go on this way
as to reach the desired low flame point.
18 The low flame position must never match the ignition position that is why cam III must be set 20°- 30° more than the ignition position.
Turn the burner off; then start it up again. If the adjustment is not correct, repeat the previous steps.
Calibration of air pressure switch
To calibrate the air pressure switch, proceed as follows:
z Remove the transparent plastic cap.
z Once air and heavy oil setting have been accomplished, startup the burner.
VR
z During the pre-purge phase o the operation, turn slowly the adjusting ring nut VR in the
clockwise direction until the burner lockout, then read the value on the pressure switch
scale and set it to a value reduced by 15%.
z Repeat the ignition cycle of the burner and check it runs properly.
z Refit the transparent plastic cover on the pressure switch.
Fully-modulating burners
To adjust the fully-modulating burners, use the CMF switch on the burner control panel (see next picture), instead of the TAB thermostat as described on the previous paragraphs about the progressive burners. Go on adjusting the burner as described before, paying
attention to use the CMF switch intead of TAB.
The CMF position sets the oprating stages: to drive the burner to the high-flame stage, set CMF=1; to drive it to the low-flame stage, set
CMF=2.
To move the adjusting cam set CMF=1 or 2 and then CMF=0.
CMF = 0
CMF = 1
CMF = 2
CMF = 3
CMF
28
stop at the current position
high flame operation
low flame operation
automatic operation
C.I.B. UNIGAS - M039117CC
Oil circuit
The fuel is pushed into the pump 1 to the nozzle 3 at the delivery pressure set by the pressure governor. The solenoid valve 2 stops the
fuel immission into the combustion chamber. The fuel flow rate that is not burnt goes back to the tank through the return circuit. The
spill-back nozzle is feeded at constant pressure, while the return line pressure is adjusted by means of the pressure governor controlled
by an actuator coupled to an adjusting cam. The fuel amount to be burnt is adjusted by means of the burner actuator according to the
adjustments set (see prevoius paragraph).
3
5
6
Fig. 20 - Stand-by
2
4
1
3
5
6
Fig. 21 - Prepurge
2
4
1
3
5
6
Fig. 22 - Low flame
2
4
1
3
Fig. 23 - High flame
5
Key
1 Oil pump
2 Oil solenoid valve
3 Nozzle
4 Adjusting cam
5 Pressure gauge
6 Pressure governor
6
2
1
4
29
C.I.B. UNIGAS - M039117CC
PART II: OPERATION
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).
NEVER 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 RESET BUTTON.
IN CASE OF A BURNER SHUT-DOWN, RESET THE CONTROL BOX BY MEANS OF THE RESET PUSHBUTTON. IF A SECOND
SHUT-DOWN TAKES PLACE, CALL THE TECHNICAL SERVICE, WITHOUT TRYING TO RESET FURTHER.
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
ATTENTION: before starting the burner up, be sure that the manual cutoff valves are open. Be sure that the mains
switch is closed.
N.B. be sure the cutoff valves on the delivery and return pipes are OPEN.
z
Turn the burner on by means of its main switch A (see next pictures).
Check that the burner is not locked (LED E lights up); if so, reset it by pressing the reset button N.
z Check that the series of thermostats (or pressure switches) enable the burner to start up.
z At the beginning of the start-up cycle the servo control drives the air damper to the maximum opening, the fan motor starts and the
pre-purge phase begins. During the pre-purge phase the complete opening of the air damper is signalled by the indicator light F on
the front panel.
z At the end of the pre-purge the ignition transformer is energised (signalled by the indicator light C on the panel). Two seconds later,
the oil valve opens and the ignition transformer is de-energized (light C off).
The burner is now into operation, the servocontrol begins the opening, after few seconds the burner goes to two stages operation and
eventually switches to the high flame operation, depending on the needs of the plant (light A, on) or continues with low flame operation
(light B, on).
z
As far as fully-modulating burners, see the Siemens RWF40 burner modulator manual.
30
C.I.B. UNIGAS - M039117CC
Control panel
E
A
B
C
F
D
R
N
G
Keys
A
B
C
CMF
D
E
F
IRA
L
N
P
Q
R
T
High flame lamp
Low flame lamp
Ignition transformer operation
Manual operation switch
0= Off
1= High flame
2= Low flame
3= Automatic
Fan motor thermal cutout intervention
Burner lockout
Burner in stand-by
Auxiliary resistors wsitch
Heavy oil solenoid lamp operation
Contrlol box reset pushbutton
Heating resistors safety thermostat
Pre-heating tank
Modulator
Main switch
31
C.I.B. UNIGAS - M039117CC
PART III: MAINTENANCE
At least once a year carry out the maintenance operations listed below. In the case of seasonal servicing, it is recommended to carry
out the maintenance at the end of each heating season; in the case of continuous operation the maintenance is carried out every 6
months.
WARNING: ALL OPERATIONS ON THE BURNER MUST BE CARRIED OUT WITH THE MAINS DISCONNECTED AND
THE FUEL MANAUL CUTOFF VALVES CLOSED!
ATTENTION: READ CAREFULLY THE “WARNINGS” CHAPTER AT THE BEGINNIG OF THIS MANUAL..
ROUTINE MAINTENANCE
z
Clean and examine the oil filter cartridge and replace it if necessary.
z Examine the condition of the oil flexible tubing and check for possible leaks.
z Check and clean if necessary the oil heaters and the tank, according to the fuel type and its use; remove the heaters flange fixing
nuts and remove the heaters from the tank: clean by using steam or solvents and not metallic things.
z Clean and examine the filter inside the oil pump. Filter must be thoroughly cleaned at least once in a season to ensure correct
working of the fuel unit. To remove the filter, unscrew the four screws on the cover. When reassemble, make sure that the filter is
mounted with the feet toward the pump body. If the gasket between cover and pump housing should be damaged, it must be replaced. An external filter should always be installed in the suction line upstream of the fuel unit.
z Remove and clean the combustion head (page 33).
z Examine and clean the ignition electrodes, adjust and replace if necessary (see page 33).
z Examine and clean the detection probe, adjust and replace if necessary (see page 34).
z Examine the detection current (see page 34).
z Remove and clean (page 34) the heavy oil nozzle (Important: use solvents for cleaning, not metallic tools) and at the end of
the maintenance procedures, after replacing the burner, turn it on and check the shape of the flame; if in doubt replace the nozzle.
Where the burner is used intensively it is recommended to replace the nozzle as a preventive measure, at the begin of the operating season.
z Clean and grease joints and rotating parts.
IMPORTANT:Remove the combustion head before checking the ignition electrodes.
CAUTION: avoid the contact of steam, solvent and other liquids with the electric terminals of the resistor.
On flanged heaters, replace the seal gasket before refitting it.
Periodic inspections must be carried out to determine the frequency of cleaning.
Self-cleaning filter
Fitted only for oil viscosity > 110 cSt. Periodically turn the knob to clean the filter.
32
C.I.B. UNIGAS - M039117CC
Removing the combustion head
z
z
z
Remove the cover H.
Slide the UV photoelectric cell out of its housing.
Unscrew the oil connections E (Fig. 24) connecting the flexible pipes to the gun L and remove the whole assembly as shown in Fig.
24-Fig. 25.
5
H
4
L
1
2
3
1
2
3
5
E
1
Fig. 24
2
Key
1 Inlet
3
2 Return
3 Gun opening
4 Heating wire (only for oil viscosity > 110 cSt)
5 Cartdrige-type heater
H Cover
Fig. 25
L Oil gun
E Oil piping connections
Removing the oil gun, replacing the nozzle and the electrodes
ATTENTION: avoid the electrodes to get in touch with metallic parts (blast tube, head, etc.), otherwise the boiler operation
would be compromised. Check the electrodes position after any intervention on the combustion head.
To remove the oil gun, proceed as follows:
1 remove the combustion head as described on the prevoius paragraph;
2 loosen the VL screw and remove the oil gun and the electrodes: check the oil gun, replace it fi necessary;
3 after removing the oil gun, unscrew the nozzle and replace it if necessary;
4 in order to replace the electrodes, unscrew the VE fixing screws and remove them: place the new electrodes being careful to
observe the measures showed on pag.: reassemlbe following the reversed procedure.
Caution: adjust the nozzle position according to the air pipe, by means of the VU screw, ance the VL screw is fastened.
E
VE
U
Fig. 26
33
C.I.B. UNIGAS - M039117CC
Nozzle and electrode correct positions
To guarantee a good ignition the measures below must be respected; see also Fig. 27. Place the nozzle according to the combustion
head; unscrew VB and move the combustion head. Check the ignition electrode at the end of the procedure.
24
4.5
=
4.5
=
80
Ignitor
6
3
Fig. 27
Checking the detection current
To check the flame itensity signal, follow the diagram shown on the next picture. If the measured value is lower than the suggested one,
check the photoresistor/pilot detection electrode position, the electrical contacts. Replace the photoresistor/electrode if necessary.
MC TERMINAL BLOCK
Control box
Flame sensor
Minimum detection signal
LMO44
QRB4
45μA
LAL2..
QRB1
95μA
34 35
+
Fig. 1
Control box
Minimum detection signal
Krom Schroeder IFW15
1µA
MC TERMINAL
BOARD
27
µA DC
Fig. 29
Cleaning and replacing the detection photoresistor
When cleaning the photoresistive detector, always use a clean cloth. If necessary, remove it from its slot to replace it.
Seasonal stop
To stop the burner in the seasonal stop, proceed as follows:
1 turn the burner main switch to 0 (Off position)
2 disconnect the power mains
3 close the fuel valve of the supply line
Burner disposal
In case of disposal, follow the instructions according to the laws in force in your country about the “Disposal of materials”.
34
C.I.B. UNIGAS - M039117CC
AUXILIARY FUSE BLOWN
OIL RESISTOR FAULTY
OIL ENABLING THERMOSTAT TRIPPED
CONTROL UNIT MALFUNCTION
BURNER STARTS
UP WITH COLD OIL
GOES OFF AND
REPEATS THE
CYCLE DURING
OPERATION
FAN THERMAL CUTOUT TRIPPED
GOES TO SHUT
DOWN DURING
OPERATION
MAXIMUM THERMOSTAT MALFUNCTION
DOES NOT PASS
TO HIGH FLAME
LINE FUSES BLOWN
z
z
z
z
z
z
z
z
DOES NOT IGNITE
AND GOES TO
SHUT DOWN
MAIN SWITCH OFF
CONTINUES PREPURGUE
CAUSES/TROUBLES
DOES NOT START
UP
TROUBLESHOOTING
z
z
z
z
z
z
z
z
z
AIR SERVOCONTROL MALFUNCTION
z
CIRCUIT ENABLING THERMOSTAT
SMOKY FLAME
z
z
z
z
IGNITION TRANSFORMER FAULTY
IGNITION ELECTRODES WRONGLY POSITIONED
DIRTY NOZZLE
FAULTY OIL VALVE
z
z
z
z
z
FAULTY OR DIRTY PHOTORESISTOR
FAULTY RESISTOR THERMOSTAT
z
z
z
FAULTY HIGH-LOW FLAME THERMOSTAT
ACTUATOR CAM NOT CALIBRATED
z
LOW OIL PRESSURE
35
z
z
BURNER EXPLODED VIEW
DESCRIPTION
AIR INLET CONE
BURNER HOUSING
COVER
CERAMIC FIBRE PLAIT
NAME PLATE
RING NUT
FLEXIBLE HOSE
FLEXIBLE HOSE
FLEXIBLE HOSE
INSPECTION GLASS
PHOTORESISTOR
BRACKET
BLAST TUBE
AIR PRESSURE SWITCH
CONNECTOR
PIPE UNION
NIPPLE
LOCK NUT
GAS PRESSURE
GAS SOLENOID VALVE
BRACKET
GAS GOVERNOR WITH FILTER
UNION ELBOW
REDUCTION
NET
NET
AIR INTAKE DAMPER
AIR INTAKE
LOUVER SHAFT
LOUVER SHAFT
LOUVER SHAFT
SPACER
SCREW
ADJUSTING CAM SHAFT
BRACKET
ADJUSTING CAM
ADJUSTING CAM FOIL
ITEM
16.8.7
16.8.8
16.8.9
16.8.10
16.8.11
16.8.12
16.8.6
17.1
17.2
17.3
18.1
18.2
18.3
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8.1
19.8.2
19.8.3
19.8.4
19.8.5
19.8.12
20.1
20.2
20.3
20.4
21.1
21.2
21.3
21.4
21.5
22.1
22.2
DESCRIPTION
CAM
LEVERAGE
CAM
JOINT
JOINT
CONNECTOR
ACTUATOR
PRESSURE GAUGE
PRESSURE GOVERNOR
BRACKET
OIL SOLENOID VALVE
OIL MANIFOLD
CONNECTOR
COVER
O RING
PLUG
PLUG
OIL PRE-HEATER
SHEATH
RESISTOR
OIL FILTER
GASKET
GAS BLEEDING VALVE
THERMOMETER
MUFF
NIPPLE
SPACER
FAN WHEEL
MOTOR
CLAMPING PLATE
MOTOR
COUPLING
PRESSURE GOVERNOR
PUMP
BRACKET
GAS FLEXIBLE HOSE
IGNITOR
ITEM
22.2.1
22.2.7
22.2.8
22.3
22.3.1
22.3.2
22.3.3
22.3.4.1
22.3.4.2
22.3.4.3
22.4
22.6
22.7
22.8
23.1
23.2
23.3.1
23.3.2
23.3.3
23.3.4
23.3.5
23.3.6
23.3.7
23.3.8
24.1
24.2
24.3
24.6.1
24.6.2
DESCRIPTION
IGNITION ELECTRODE
DETECTION ELECTRODE
NOZZLE
STANDARD COMPLETE OIL GUN
NOZZLE
NOZZLE HOLDER
COMBUSTION HEAD ADJUSTING PIPE
OIL SOLENOID VALVE
OIL MANIFOLD
CONNECTOR
OIL GUN HOLDER
IGNITION CABLE
COMBUSTION HEAD
DETECTION CABLE
BOARD
COVER
OUTPUT CONTROLLER
FRONT CONTROL PANEL
LIGHT
LIGHT
LOCK-OUT RESET BUTTON
PROTECTION
SWITCH
SWITCH
CONTROL BOX
CONTROL BOX SOCKET
IGNITION TRANSFORMER
THERMOSTAT
THERMOSTAT
C.I.B. UNIGAS - M039117CC
36
ITEM
1
2
2.1
3
4
5
6
7
8
9
10
11
12
13
14
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.9
15.10
16.1
16.2
16.3
16.4
16.5
16.6
16.7
16.8.1
16.8.2
16.8.3
16.8.4
16.8.5
16.8.5.1
C.I.B. UNIGAS - M039117CC
37
SPARE PARTS
PN1025
2020114
2020420
2080115
2080258
2090238
2150063
2160086
2160097
2170301
21802A2
2180257
2190437
2190502
234FX07
234FX24
2340004
2440013
2480004
24800A5
2510003
2540133
2560026
2560028
25700A7
2570036
2570112
2590148
2610203
2640042
2800085
3060169
30910T6
30910K4
6050143
NOTE: it is recommended to mention the burner ID number on the spare parts request form.
PN1030
2020114
2020420
2080115
2080258
2090238
2150058
2160086
2160097
2170301
2180294
2180257
2190437
2190502
234FX07
234FX24
2340004
2440054
2480004
24800A5
2510003
2510003
2560026
2560028
2570008
2570036
2570112
2590148
2610203
2610210
2640042
2800085
30601A5
30910T7
30910L5
6050143
PN1040
2020114
2020420
2080115
2080258
2090238
2150058
2160086
2160097
2170301
2180292
2180257
2190437
2190502
234FX07
234FX24
2340004
2440054
2480004
24800A5
2510003
2510003
2560026
2560028
2570008
2570036
2570112
2590148
2610203
2610210
2610213
2640042
2800085
30601A5
30910T8
30910T4
6050143
C.I.B. UNIGAS - M039117CC
38
DESCRIPTION
CONTROL BOX KROM-SCHROEDER IFW
CONTROL BOX SIEMENS LAL
PILOT FLAME DETECTION ELECTRODE
PILOT IGNITION ELECTRODE
FILTER FOR ECO/DENSE OIL
FAN WHEEL
GAS PRESSURE SWITCH DUNGS GW150 A6
AIR PRESSURE SWITCH
IGNITION TRANSFORMER
FAN MOTOR
PUMP MOTOR
OIL SOLENOID VALVE
GAS PILOT SOLENOID VALVE
GAS FLEXIBLE HOSE L = 800 1/2”M x 1/2”F
OIL FLEXIBLE HOSE L = 347 1/2”F x 1/2”F
OIL FLEXIBLE HOSE L = 1500 1”M x 1”F
ADJUSTING CAM FOIL
ACTUATOR mod.SIEMENS SQM10
ACTUATOR mod.SIEMENS SQM40
PHOTORESISTOR mod. SIEMENS QRB..
MOTOR-PUMP COUPLING
RESISTOR THERMOSTAT TR-TCN-TCI
THERMOSTAT TRS
PRESSURE GOVERNOR
PRESSURE GOVERNOR SUNTEC TV
BURNER MODULATOR (FULLY-MODULATING BURNERS)
PUMP SUNTEC
NOZZLE mod. FLUIDICS WR2 50°
NOZZLE mod. BERGONZO B
NOZZLE mod. BERGONZO C
NOZZLE
GAS GOVERNOR WITH FILTER
COMBUSTION HEAD
STANDARD BLAST TUBE
EXTENDED BLAST TUBE
IGNITION CABLE
ELECTRICAL WIRING DIAGRAMS
SE12-154: Progressive burners wiring diagramÏ
SE12-155: Fully-modulating burners wiring diagram
WARNING:
1 - Power supply 400V 50Hz 3N AC
2 - Don’t reverse phase with neutral
3 - Ensure the burner is properly earthed
C.I.B. UNIGAS - M039117CC
39
APPENDIX
SIEMENS LAL.. CONTROL BOX
Use
z Control and supervision of oil atomization burners
z For burners of medium to high capacity
z For intermittent operation (at least one controlled shutdown every 24
hours)
z Universally applicable for multistage or modulating burners
Housing and plug-in base
z Made of impact-proof and heat-resistance black plastic
z Lockout reset button with viewing window; located behind it:
z Lockout warning lamp
z Lockout indicator coupled to the spindle of the sequence switch and
visible in the transparent lockout reset button
z uses easy-to-remember symbols to indicate the type of fault and the
point in time lockout occurred
Base and plug-in section of the LAL... are designed such that only burner
controls of the LAL... family can be plugged in.
z 24 connection terminals
z Auxiliary terminals «31» and «32»
z 3 earth terminals terminating in a lug for earthing the burner
z 3 neutral conductor terminals prewired to terminal 2
z 14 knockout holes for cable entry by means of cable glands
z 8 at the side
z 6 in the bottom of the base
z 6 lateral threaded knockout holes for cable entry glands Pg11 or M20
Operation
Flame detector and flame simulation test are made automatically during
burner off times and the prepurge time «t1». If loss of flame occurs during
operation, the burner control will initiate lockout. If automatic repetition of
the startup sequence is required, the clearly marked wire link on the plugin section of the LAL... must be cut away.
Pre-conditions for burner startup
t3n Postignition time:
- «Z» must be connected to terminal 15
- With short preignition, «Z» remains on until «TSA» has elapsed connection to terminal 16.
t4
Interval «BV1 – BV2» or «BV1 - LR»: On completion of «t4», voltage is present at terminal 19. The voltage is required to power «BV2»
connected to auxiliary switch «v» in the actuator.
t5
Interval: On completion of «t5», terminal 20 receives power. At the
same time, control outputs 9 to 11 and input 8 are galvanically separated
from the LAL...’s control section.
LAL... is now protected against reverse voltages from the load control
circuit. With the release of «LR» at terminal 20, the startup sequence of
the LAL... ends. After a few idle steps (steps with no contact position
changes), the sequence switch switches itself off.
B
Operating position of the burner
B-C Burner operation: during burner operation, «LR» drives the air
damper to the nominal load or low-fire position, depending on heat
demand; the release of the nominal load takes place via auxiliary switch
«v» in the actuator and in the event of loss of flame during operation, the
LAL... will initiate lockout. For automatic start repetition, the clearly
marked wire link «B» on the plugin section of the LAL... must be cut away.
C
Controlled shutdown: in the case of controlled shutdown, «BV...»
will immediately be closed. At the same time, the sequence switch is started to program «t6»
C-D Sequence switch travels to start position «A»
t6
Postpurge time: fan «M2» connected to terminal 7. Shortly after the
start of «t6», terminal 10 receives power and the air damper is driven to
the MIN position. Full closing of the air damper starts only shortly before
«t6» has elapsed initiated by the control signal at terminal 11. During the
following burner off time, terminal 11 is live.
t13 Permissible afterburn time: during «t13», the flame signal input
may still receive a flame signal.
D-A End of control program: start position
As soon as the sequence switch has reached the start position – having
thereby switched itself off – the flame detector and flame simulation test
will start again.
During burner off times, the flame supervision circuit is live.
z Burner control is not in the lockout position
z Sequence switch is in its start position (with LAL2 voltage is present at
Lockout and indication of the stop position
terminals 11 and 12.
z Air damper is closed; end switch «z» for the CLOSED position must
feed power from terminal 11 to terminal8.
z Contact of the limit thermostat or pressure switch «W» and the contacts of any other switching devices in the control loop between terminals 4 and 5 must be closed e.g. a control contact for the oil
preheater’s temperature
z Normally closed contact of the air pressure switch must be closed.
Whenever a fault occurs, the sequence switch stops and with it the
lockout indicator. The symbol appearing above the reading mark indicates
the type of fault:
No start. One of the contacts is not closed (also refer to «Preconditions for burner startup»):
Extraneous light:
Lockout during or after completion of the control program
Examples: nonextinguished flame, leaking fuel valves faulty flame supervision circuit.
Interruption of startup. No OPEN signal at terminal 8 from the changeover end switch «a». Terminals 6, 7 and 15 are live until fault has
been corrected
P
Lockout. No air pressure indication at the beginning of the air pressure check. Air pressure failure after the air pressure check.
Defect in the flame supervision circuit.
Interruption of the startup sequence. No positioning signal at terminal 8 from the auxiliary switch «m» for the low-fire position. Terminals
6, 7 and 15 are live until fault has been corrected.
1
Lockout. No flame signal at the end of the safety time.
Startup sequence
Start command by «R»:
«R» closes the start control loop between terminals 4 and 5
z The sequence switch starts to run
z Only prepurging, fan motor at terminal 6 receives power
z Pre- and postpurging, fan motor or flue gas fan at terminal 7 receives
power on completion of «t7»
z On completion of «t16», the control command for opening the air damper is delivered via terminal 9
z Terminal 8 receives no power during the positioning time
z The sequence switch continues to run only after the air damper has
fully closed.
t1
|
Flame signa has been lost during operation.
A
Consenso all’avviamento (ad esempio tramite il termostato o il
pressostato R dell’impianto
Prepurge time with air damper fully open:
z The correct functioning of the flame supervision circuit is checked
during «t1»
z The burner control will initiate lockout if correct functioning is not ensured.
With LAL2:
Shortly after the beginning of «t1», the air pressure switch must change
over from terminal 13 to terminal 14 otherwise, the burner control will initiate lockout start of the air pressure check.
t3
Short preignition time:
«Z» must be connected to terminal 16, release of fuel via terminal 18.
t3’
Long preignition time: «Z» connected to terminal 15.
B
Operating position of the burner
B-C Burner operation: during burner operation, «LR» drives the air
damper to the nominal load or low-fire position, depending on heat
demand; the release of the nominal load takes place via auxiliary switch
«v» in the actuator and in the event of loss of flame during operation, the
LAL... will initiate lockout. For automatic start repetition, the clearly
marked wire link «B» on the plugin section of the LAL... must be cut away.
C
Controlled shutdown: in the case of controlled shutdown, «BV...»
will immediately be closed. At the same time, the sequence switch is started to program «t6»
C-D Sequence switch travels to start position «A».
4 A max., 20 A peak
T6,3H250V according to IEC 127
max. 10 A
Device 1000 g
Plug-in base 165 g
Internal fuse
External fuse
Weight
During burner off times, the flame supervision circuit is live.
Lockout indication
S
L
Q R C 1 ...
H
bl
SB
br
sw
23
22
1
1
AS
b r1
a-b
Startup sequence
b-b’ Idle step (with no contact confirmation)
b(b’)-a Postpurge program
a b
I
a
b
ar1
6
7
M1
M2
4
Q R B 1 ...
23 24
22
a r2
V
W
Burner control can immediately be reset after lockout:
Do not press the lockout reset button for more than 10 seconds
The sequence switch always travels to the start position first
After resetting
After rectification of a fault that led to shutdown
After each power failure
During this period of time, power is only fed to terminals 7 and 9...11.
Then, the LAL.... will program a new burner startup sequence
Specifications
Power supply
AC 230 V -15 / +10 %
for LAL2... on request AC 100 V -15 %...AC 110 V +10 %
Frequency
50 Hz -6 %...60 Hz +6 %
Absorption
AC 3.5 VA
Mounting position
optional
Protection
IP 40
Perm. input current at terminal 1
AC 5 A max., 20 A peak
Perm. current rating of control terminals 3, 6, 7, 9...11, 15...20
N
5
a
b
EK1*
a r3
X III
a
a
b
V II
a
b
fr2
b
IX
b
X IV
fr1
XI
FR
a
R
B
X II
b
a
IV
II
X
b
aa
V III
b a
V
a
b
VI
b
III
a
b
AR
SM
b r2
L1
M
M
E
BR
A
3
21
1 (3 )
2
15
16 18 17 19 9
11 1 0
8
SA
H
AL
20
LR
v
a
M
z
m
LK
EK2*
Z
N
BV1
BV2
7 1 5 3 a 0 7 /0 4 9 6
Sequence diagram
Control output at terminal
A
II
a
b t7
a
b
III
a
b
I
t11
t12
C
t6
D
4
12 *
7
t4
19
16
10
9
t3
IV
V
t1
B
15
t3 n
t3"
9
a
b
t1 6
t5
11
20
VI
V II
a
b
V III
a
b
8
t20
17
IX
t2
X
a
b
XI
a
b
X II
a
b
X III
a
b
X IV
a
b
18
*
t10*
t13
t8
Lockout position indication
T3’
Key
t1
Prepurge time with air damper fully open
t2
Safety time
t3
Preignition time, short («Z» connected to terminal 16)
Preignition time, long («Z» connected to terminal 15)
t3n
Postignition time («Z» connected to terminal 15)
t4
Interval between voltage at terminals 18 and 19 («BV1-BV2»)
t5
Interval between voltage at terminals 19 and 20 («BV2» load
controller)
t6
Postpurge time (with «M2»)
t7
Interval between start command and voltage at terminal 7 (start
delay time for «M2»)
t8
Duration of startup sequence (excluding «t11» and «t12»)
t10
Interval from startup to the beginning of the air pressure check
t11
Air damper running time to the OPEN position
t12
Air damper running time to the low-fire position (MIN)
t13
Permissible afterburn time
t16
Interval to the OPEN command for the air damper
t20
For self-shutdown of the sequence switch
In the case of UV control, one IFW 15 flame detector must be used per
burner. A diode of type EM 513 must be fitted as shown on the wiring diagram (Fig. 4).
Load of the flame control unit per output: 1A, total current: 2 A.
Decoupling relays must be provided if the currents exceed these values.
Ionisation line: Max. 50 m; condition: well away from mains cable and
sources of radiated noise - no electrical interference.
Several ionisation lines may be laid together in one plastic conduit. Avoid
metal conduits wherever possible. Use high-voltage cables, non-screened.
Fig. 1
KROM-SCHROEDER IFW15 FLAME DETECTOR
z For flame detection
z For multi-flame control for intermittent
z operation in conjunction with the
z flame control units IFS
z Ionisation or UV control
z Potential-free change-over contacts
z Integrated flame control signal
APPLICATION
For the detection and signalling of the presence of a flame by means of
ionisation or UV control. The flame detector is intended for use in conjunction with the flame control units IFS 110 IM, IFS 111 IM, IFS 410 or IFS
414. It can also be used where there is no fully automatic control required.
FEATURES
- Flame control with ionisation electrode or UV probe
- For intermittent operation
- Potential-free contacts for flame detection (1 normally closed, 1 normally
open)
Function
The flame detector is ready for operation as soon as the mains voltage is
applied to it. When the flame is established, the d.c. current energises a
relay. The contacts of this relay can be used for control functions according to the application.
In a multi-flame control system (Fig. 2), several burners may be controlled at the same time. A flame control unit (e.g. IFS 110 IM) is used for the
entire control functions and this also controls the first burner (only in the
case of ionisation control). All remaining burners of this group are each
controlled by an IFW 15 flame detector.
Should the flame controlled by a flame detector be extinguished during
operation, the flame signal to the control unit is interrupted and an emergency cut-off occurs. This also occurs if a flame is simulated prior to ignition.
Technical data
Mains voltage:
IFW 15: 220/240 VAC -15/+10%, 50/60 Hz for earthed mains
IFW 15T: 110/120 VAC -15/+10%, 50/60 Hz or
220/240 VAC -15/+10%, 50/60 Hz for earthed or non-earthed mains
Consumption: 12 VA
Output voltage for ionisation electrode: 230 VAC
Ionisation current: > 1 µA
Output signal:
Potential-free contacts (1 normally closed, 1 normally open)
Contact load: max. 2 A
Connection terminals: 2 x 1.5 mm2
Flame detection: Lamp in the device
Ambient temperature: 20 °C to +60 °C
Fitting position: Arbitrary
Weight: 370 g
Construction: Housing made of impact-resistant plastic.
Plug-in upper housing with amplifying stage and green lamp for flame
detection.
Plug socket with terminals, earthing strip and neutral bar 5 openings for
Pg 9 cable gland provided.
Project planning information
Multi-flame control: No more than 5 flame detectors should be used per
flame control unit since it must be guaranteed that all burners are ignited
within the flame control unit’s safety period (3 s, 5 s or 10 s).
Very long gas pipes may possibly lead to delayed ignition of a burner and
to switchoff of the entire system. This is why the pilot gas valves should
be installed directly on the burners. In the case of ionisation control, one
of the burners can be monitored by the flame control unit.
Fig. 2
C.I.B. UNIGAS S.p.A.
Via L.Galvani, 9 - 35011 Campodarsego (PD) - ITALY
Tel. +39 049 9200944 - Fax +39 049 9200945/9201269
web site: www.cibunigas.it - e-mail: [email protected]
Note: specifications and data subject to change without notice. Errors and omissions excepted.
RWF55.5X & RWF55.6X
User manual
M12926CA Rel.0.1 10/2015
1
DEVICE INSTALLATION
Fixing system
Drilling dimensions:
2
FRONT PANEL
Burner release
Controlling element CLOSED/stage 1
Controlling element OPEN/stage 2
Operating mode 2-stage
Actual value display (red) and parameter value
USB led
Comunication via interface
Operating mode 2-stage
Thermal shock protection
Alarm function
Decrease value
Increase value
ESC button
Enter button
3
NAVIGATION MENU
Parameter level
User Level - Opr
SP1 or SP2 (editable)
dSP readable and editable
through bin1 = 2
InP1 or y (only display)
Basic display
Parameter level - PArA
Pb1, dt, rt, db, tt
Heating controllerHYS1 , HYS2 ,
HYS3
Cooling controller
HYS4 , HYS5 , HYS6
q, At1, Ht1, At2, Ht2
next parameter
Main
navigation
one level
back
Configuration level – ConF
and lower level
Analog inputs
Controller
Thermal shock protection
Alarm function
Controllig outputs
Binary inputs
Display
Interface
one level
down
previous parameter
InP ..
Cntr
rAFC
AF
outP
binF
diSP
intF
RWF55 is preset good for 90% of applications. However, you can set or edit parameters as follow:
Set-point: set or modification:
When the burner is in stand-by, (safety loop open, that is terminals 3-4/T1-T2 on the 7 pole plug open) push the Enter button: on the lower display
(green) Opr appears; push Enter again and in the same display SP1 appears. Push Enter again and the lower display (green SP1) flashes. Using the up
and down arrows change the set-point on the upper display (red).Push Enter to confirm and push ESC more times to get the home position.
4
PID parameters set and modifications (PArA):
Push Enter button, on the green display Opr appears; using the down arrow, scroll until group PArA is reached and push Enter.
On the green display Pb1 e appears and on the red one the set parameter. Push is sequence the down or up arrow the menu is scrolled.
Push Enter to select and the arrows to choose the desired value. Enter to confirm
Parameter
Display
Range
Factory
setting
Proportional band
Typical value for temperature
Pb1
1… 9999 digit
10
dt
0… 9999 sec.
80
rt
0… 9999 sec.
350
erivative action
Typical value for temperature
Typical value for temperatureТ
Integral action
Typical value
Dead band (*)
Servocontrol
running time
db
0… 999,9 digit
1
tt
10… 3000 sec.
15
HYS1
0,0… -1999 digit
-5
HYS2
0,0 … HYS3
3
HYS3
0,0… 9999 digit
5
Set servocontrol running time
Switch-on differential (*)
Switch-off differential 2° stage
(*)
Upper switch-off
differential
(*)
Switch-on differential on cooling
controller (*)
Switch-off differential 2° stage
on cooling controller (*)
Upper switch-off
differential on cooling controller
(*)
Delay modulation
T Outside temperature Curve
point 1 (*)
Boiler temperature Curve point 1
(*)
TT Outside temperature Curve
point 2 (*)
Boiler temperature Curve point 2
(*)
Remarks
Value under setpoint below which
the burner switches back on
(1N-1P closes)
(enable only with parameter bin1 = 4)
Value over setpoint above which the burner
switches off (1N-1P opens)
Do not used
(enable only with parameter CACt = 0)
HYS4
0,0… 9999 digit
5
HYS5
HYS6…0,0 digit
5
Do not used
(enable only with parameter CACt = 0 and parameter bin1=0)
HYS6
0,0… -1999 digit
5
Do not used
(enable only with parameter CACt = 0)
q
0,0… 999,9 digit
0
At1
-40 ...120 digit
-10
Do not alter
First point of external temperature for climatic curve
Ht1
SPL...SPH
60
At2
-40 ...120 digit
20
Ht2
SPL...SPH
50
(*) Parameters affected by setting of decimal place (ConF > dISP parameter dECP)
5
Set-point temperature for the external temperature
1
Second point of external temperature for climatic
curve
Set-point temperature for the external temperature
2
Setting the kind of sensor to be connected to the device:
Push the Enter button: on the lower display (green) Opr appears. Using the up and down arrows find ConF. Push Enter to confirm. Now on the green
display the group InP appears. Push Enter and InP1 is displaied. Enter to confirm.You are inside InP1; the green display shows Sen1 (sensor type),
while the red display shows the chosen sensor code Push Enter to enter the Sen1 parameter, then choose the desired sensor using the arrows. Push
Enter to confirm and ESC to escape.
Once selected the sensor, you can modify all the other parameters using up and down arrows according to the tables here below :
ConF > InP >InP1
Parameter
Value
Description
SEn1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
-1999..0.. +9999
Pt100 3 wire
Pt100 2 wire
Pt1000 3 wire
Pt1000 2 wire
Ni1000 3 wire
Ni1000 2 wire
0 ÷ 135 ohm
Cu-CuNi T
Fe-CuNi J
NiCr-Ni K
NiCrSi-NiSi N
Pt10Rh-Pt S
Pt13Rh-Pt R
Pt30Rh-Pt6Rh B
0 ÷ 20mA
4 ÷ 20mA
0 ÷ 10V
0 ÷ 5V
1 ÷ 5V
-1999..0.. +9999
minimum scale value(for input ohm, mA, V)
-1999..100.. +9999
maximum scale value(for input ohm, mA, V)
0…0,6…100
Is used to adapt the digital 2nd order input filter (time in s; 0 s = filter off)
1
2
1 = degrees Celsius
type of sensor for analog
input 1
OFF1
Correction value measured by the sensor
Sensor offset
SCL1
scale low level
SCH1
scale high level
dF1
digital filter
Unit
temperature unit
2 = degrees Fahrenheit
(bold = factory settings)
6
ConF > InP >InP2
Input 2 : this input can be used to specify an external setpoint or carry out setpoint shifting
Parameter
Value
Description
FnC2
0
1
2
3
0= no function
SEn2
tisensor type input 2
OFF2
1
2
3
4
5
1
-1999..0.. +9999
1= external setpoint (display SPE)
2 =setpoint shifting (display dSP)
3 = angular positioning feedback
0 ÷ 20mA
4 ÷ 20mA
0 ÷ 10V
0 ÷ 5V
1 ÷ 5V
0 ÷ 20mA
Correction value measured by the sensor
Sensor offset
SCL2
-1999..0.. +9999
minimum scale value(for input ohm, mA, V)
-1999..100.. +9999
maximum scale value(for input ohm, mA, V)
0…2…100
Is used to adapt the digital 2nd order input filter (time in s; 0 s = filter off)
scale low level
SCH2
scale high level
dF2
digital filter
(bold = factory settings)
ConF > InP >InP3
Input 3: this input is used to acquire the outside temperature
Parameter
Value
Description
SEn3
sensor type input 3sensor
type input 2
0
1
2
0=
1 = wire
2 = wire
OFF3
-1999..0.. +9999
Correction value measured by the sensor
0…1278…1500
Is used to adapt the digital 2nd order input filter (time in s; 0 s = filter off)
Sensor offset
dF3
digital filter
(bold = factory settings)
7
ConF > Cntr
Here, the type of controller, operating action, setpoint limits and presettings for self-optimization are selected
Parameter
Value
Description
CtYP
controller type
CACt
1
2
1 = 3-position controller (open-stop-close)
2 = continuative action controller (0 ÷10V or 4 ÷ 20mA)
1 = heating controller
control action
1
0
SPL
-1999..0..+9999
minimum set-point scale
-1999..100..+999
maximum set-point scale
0 = cooling controller
least value of the set-point
range
SPH
maximum value of the setpoint range
0 = Free
Self-optimization
0
1
oLLo
-1999.... +9999
1 = Locked
Self-optimization can only be disabled or enabled via the ACS411 setup program.
Self-optimization is also disabled when the parameter level is locked
lower working range limit
-1999.... +9999
upper working range limit
set-point limitation start,
operation limit low
oLHi
set-point limitation end,
operation limit high
(bold = factory settings)
ConF > rAFC
Activation boiler shock termic protetion:
RWF55.. can activate the thermal shock protection only on sites where the set-point is lower than 250°C and according to rAL parameter
Parameter
Value
type of contol
Description
tchoose type of range degrees/time
FnCT
0
1
2
0 = deactived
1 = Kelvin degrees/minute
2 = Kelvin degrees/hour
Slope of thermal shock protection (only with functions 1 and 2)
rASL
ramp rate
0,0 … 999,9
toLP
2 x (HYS1) = 10…9999
width of tolerance band (in K) about the set-point
0 = tolerance band inactive
0…250
Ramp limit. When this value is lower than the temperature set-point, the
RWF controls the output increasing the temp set point step by step according to rASL. If this is over the temp set point, the control is performed in
cooling
.
tolerance band ramp
rAL
ramp limit
(bold = factory settings)
8
Alarm functionAF
The alarm function can be used to monitor the analog inputs. If the limit value is exceeded, multifunctional relay K6 (terminals 6N and
6P) is activated (depending on the switching characteristic)
The alarm function can have different switching functions (lk1 to lk8) and can be set to a deviation from the active setpoint or to a fixed
limit value
Limit value AL relative to setpoint (x)
Fixed limit value AL
9
ConF > AF
Parameter
Value
Description
FnCt
0
1
2
3
4
5
6
7
8
9
10
11
12
0 = Without function
type of control
Ik1 = monitored input InP1
Ik2 = monitored input InP1
Ik3 = monitored input InP1
Ik4 = monitored input InP1
Ik5 = monitored input InP1
Ik6 = monitored input InP1
Ik7 = monitored input InP1
Ik8 = monitored input InP1
Ik7 = monitored input InP2
Ik8 = monitored input InP2
Ik7 = monitored input InP3
Ik8 = monitored input InP3
Alarm value
AL
HySt
switching differential
ACrA
response by out of range
-1999 ...
0
1999
0…
1...
9999
0
1
Limit value or deviation from setpoint to be monitored (see alarm functions
lk1 to lk8: limit value AL)
Limit value range for lk1 and lk20 ...9999
Switching differential for limit value AL
Switched-off
ON
Switching state in the case of measuring range overshoot or undershoot
(Out of Range)
(bold = factory settings)
ConF > OutP
For fuel-air ratio control purposes, the RWF55 has the binary outputs K2, K3 (terminals KQ,K2, K3) and the analog output (terminals
A+, A-). The burner is released via relay K1 (terminals 1N, 1P) .
The binary outputs of the RWF55 offer no setting choices
The RWF55 has an analog output.
The analog output offers the following setting choices:
Parameter
Value
Description
FnCt
1
2
3
4
1 = analog input 1 doubling with possibility to convert
2 = analog input 2 doubling with possibility to convert
3 = analog input 3 doubling with possibility to convert
4 = Controller’s angular positioning is delivered (modulating controller)
type of control
physical output signal (terminals A+, A-)
SiGn
type of output signal
rOut
0
1
2
0…101
0 = 0÷20mA
1 = 4÷20mA
2 = 0÷10V DC
-1999…0..+9999
A value range of the output variable is assigned to a physical output signal (for
FnCt = 1, 2, 3)
-1999…100..+9999
A value range of the output variable is assigned to a physical output signal (for
FnCt = 1, 2, 3)
signal (in percent) when measurement range is crossed
value when out of input
range
oPnt
zero point
End
end point
(bold = factory settings)
10
ConF > binF
This setting decides on the use of the binary inputsD1, D2, DG
b
Parameter
Value
0
binary imput 1 (terminals DG 1
– D1)
2
3
bin1
bin2
4
binary imput 2 (terminalsк
DG – D2)
Description
0 = without function
1 = set-point changeover (SP1 / SP2)
2 = lset-point shift (Opr > dSP parameter = value of set-point modify)
3 = input alarm
changeover of operating mode
DG-D2 open = modulating operation
DG-D2 close = 2 stage operation
(bold = factory settings)
ConF > dISP
.Both displays can be customized to suit your needs by configuring the displayed value, decimal, time out and blocking
Parameter
Value
diSU
pper display (red)
0
1
2
3
4
6
7
diSL
lower display (green)
0
1
2
3
4
6
7
tout
timeout
dECP
0..180..250
decimal point
CodE
level lockout
0
1
2
0
1
2
3
Description
Display value for upper display:
0 = display power-off
1 = analog input 1 (InP1) value
2 = analog input 2 (InP2) value
3 = analog input 3 (InP3) value
4 = controller's angular positioning
6 = set-point valueв
7 = end value with thermal shock protection
Display value for lower displayЗ:
0 = display power-off
1 = analog input 2 (InP2) value
2 = analog input 2 (InP2) value
3 = analog input 2 (InP2) value
4 = controller's angular positioning
6 = set-point valueв
7 = end value with thermal shock protection
time (s) on completion of which the controller returns automatically to the
basic display, if no button is pressed
0 = no decimal place
1 = one decimal place
2 = two decimal place
0 = no lockout
1 = configuration level lockout (ConF)
2 = parameter and configuration level lockout (PArA & ConF)
3 = keyboard lockout
(bold = factory settings)
11
ConF > IntF
The controller can be integrated into a data network using an optional RS-485 (terminals R+ and R-) interface or an optional Profibus
DP interface(only modelRWF55.6x terminalsC1-C2-C3-C4)
Parameter
Value
Description
bdrt
baudrate
0
1
2
3
0..
1..
254
0..125
0 = 4800 baud
1 = 9600 baud
2 = 19200 baud
3 = 38400 baud
0..
30..
7200s
0 = swiched-off
Adr
Device address Modbus
dP
Address in the data network
only withRWF55.6x
Device address Profibus
dtt
Remote detection time
(bold = factory settings)
Manual control :
In order to manual change the burner load, while firing keep pushing the ESC button for more than 5 s; on the lower green display
Hand appears.
using the UP and DOWN arrows, the load varies.
Keep pushing the ESC button for getting the normal operation again.
NB: every time the device shuts the burner down (start led switched off - contact 1N-1P open), the manual control is not active.
Device self-setting (auto-tuning):
If the burner in the steady state does not respond properly to heat generator requests, you can activate the Device's self-setting function, which recalculates PID values for its operation, deciding which are most suitable for the specific kind of request
Follow the below instructions:
push the UP and DOWN arrows for more than 5 s; on the green lower display tUnE appears. Now the device pushes the burner to
increase and decrease its output. During this time, the device calculates PID parameters (Pb1, dt and rt). After the calculations, the
tUnE is automatically deactivated and the device has already stored them.
In order to stop the Auto-tuning function while it works, push again the UP and DOWN arrows for more than 5 s. The calculated PID
parameters can be manually modified following the previously described instructions.
12
Display of software version :
The software version is shown by pushing Enter + UP arrow on the upper display.
Weather-compensated setpoint shifting(climatic regulation):
The RWF55 can be configured so that weather-compensated setpoint shifting is activated when an LG-Ni1000 outside sensor or a
Pt1000 is connected (see parameter InP3).
To take into account the time response of a building, weather-compensated setpoint shifting uses the attenuated outside temperature
rather than the current outside temperature
The minimum and maximum setpoints can be set using the lower setpoint limit SPL and the upper setpoint limit SPH of the menù Crtr.
The system also prevents the lower working range limit oLLo and upper working range limit oLHi from exceeding/dropping below the
system temperature limits.
The heating curve describes the relationship between the boiler temperature setpoint and the outside temperature. It is defined by 2
curve points. For 2 outside temperatures, the user defines the boiler temperature setpoint that is required in each case. The heating
curve for the weather-compensated setpoint is calculated on this basis. The effective boiler temperature setpoint is limited by the upper
setpoint limit SPH and the lower setpoint limit SPL.
For setting climatic regulation function set:
PArA > parametersAt1, Ht1, At2, Ht2
ConF > InP > InP3 parametersSEn3, FnC3 = 1 (Weather-compensated setpoint).
13
Modbus interface
The tables that follow in this chapter specify the addresses of the readable and writable words that the customer is able to access. The
customer may read and/or write the values using SCADA programs, PLCs, or similar.
The entries under Access have the following meanings:
R/O Read Only, value can only be read
R/W Read/Write, value can be read and written
The number of characters specified under Data type in the case of character strings includes the final \0.
Char10 means that the text is up to 9 characters long. The final \0 character is then added to this
User level
Address Access
Data type
Signal reference
Parameter
0x0000
R/O
Float
X1
Analog input InP1
0x0002
R/O
Float
X2
Analog input InP2
0x0004
R/O
Float
X3
Analog input InP2
0x0006
R/O
Float
WR
Actual setpoint
0x0008
R/W
Float
SP1
Setpoint 1
0x000A
R/W
Float
SP2 (= dSP)
Setpoint 2
0x1035
R/O
Float
---
Analog input InP3 (unfiltered)
0x1043
R/O
Float
---
Actual angular positioning
0x1058
R/O
Word
B1
Burner alarm
Address Access
Data type
Signal reference
Parameter
0x3000
R/W
Float
Pb1
Proportional range 1
0x3004
R/W
Float
dt
Derivative action time
0x3006
R/W
Float
rt
Integral action time
0x300C
R/W
Float
db
Dead band
0x3012
R/W
Word
tt
Controlling element running time
Parameter level
0x3016
R/W
Float
HYS1
Switch-on threshold
0x3018
R/W
Float
HYS2
Switch-off threshold down
0x301A
R/W
Float
HYS3
Switch-off threshold up
0x301C
R/W
Float
HYS4
Switch-on threshold (cooling)
0x301E
R/W
Float
HYS5
Switch-off threshold down (cooling)
0x3020
R/W
Float
HYS6
Switch-off threshold up (cooling)
0x3022
R/W
Float
q
Reaction threshold
0x3080
R/W
Float
At1
Outside temperature 1
0x3082
R/W
Float
Ht2
Boiler temperature 1
0x3084
R/W
Float
At2
Outside temperature 2
0x3086
R/W
Float
Ht2
Boiler temperature 2
14
Configuration level
Address Access
Data type
Signal reference
Parameter
0x3426
R/W
Float
SCL1
Start of display input 1
0x3428
R/W
Float
SCH1
End of display input 1
0x3432
R/W
Float
SCL2
Start value input 2
0x3434
R/W
Float
SCH2
End value input 2
0x3486
R/W
Float
SPL
Start of setpoint limitation
0x3488
R/W
Float
SPH
End of setpoint limitation
0x342A
R/W
Float
OFFS1
Offset input E1
0x3436
R/W
Float
OFFS2
Offset input E2
0x343A
R/W
Float
OFFS3
Offset input E3
0x1063
R/W
Word
FnCt
Ramp function
0x1065
R/W
Float
rASL
Ramp slope
0x1067
R/W
Float
toLP
Tolerance band ramp
0x1069
R/W
Float
rAL
Limit value
0x1075
R/W
Float
dtt
Remote Detection Timer
0x1077
R/W
Float
dF1
Filter constant input 1
0x1079
R/W
Float
dF2
Filter constant input 2
0x107B
R/W
Float
dF3
Filter constant input 3
0x107D
R/O
Float
oLLo
Lower working range limit
0x107F
R/O
Float
oLHi
Upper working range limit
0x106D
R/W
Word
FnCt
Alarm relay function
0x106F
R/W
Float
AL
Alarm relay limit value (limit value alarm)
0x1071
R/W
Float
HYSt
Alarm relay hysteresis
Address Access
Data type
Signal reference
Parameter
0x0500
R/W
Word
REM
Activation remote operation *
0x0501
R/W
Word
rOFF
Controller OFF in remote setpoint **
0x0502
R/W
Float
rHYS1
Switch-on threshold remote
0x0504
R/W
Float
rHYS2
Switch-off threshold down remote
0x0506
R/W
Float
rHYS3
Switch-off threshold up remote
0x0508
R/W
Float
SPr
Setpoint remote
0x050A
R/W
Word
RK1
Burner release remote operation
0x050B
R/W
Word
RK2
Relay K2 remote operation
0x050C
R/W
Word
RK3
Relay K3 remote operation
0x050D
R/W
Word
RK6
Relay K6 remote operation
0x050E
R/W
Word
rStEP
Step-by-step control remote operation
0x050F
R/W
Float
rY
Angular positioning output remote operation
0x0511
R/W
Float
rHYS4
Switch-on threshold remote (cooling)
0x0513
R/W
Float
rHYS5
Switch-off threshold down remote (cooling)
0x0515
R/W
Float
rHYS6
Switch-off threshold up remote (cooling)
Remote operation
Legend
* = Local
** = Controller OFF
15
Dati dell’apparecchio
Address
Access
Data type
Signal reference
Parameter
0x8000
R/O
Char12
---
Software version
0x8006
R/O
Char14
---
VdN number
Stato dell’apparecchio
Address
Access
Data type
Signal reference
Parameter
0x0200
R/O
Word
---
Outputs and states
Bit 0
Output 1
Bit 1
Output 3
Bit 2
Output 2
Bit 3
Output 4
Bit 8
Hysteresis limitation
Bit 9
Control system
0x0201
R/O
Word
Bit 10
Self-optimization
Bit 11
Second setpoint
Bit 12
Measuring range overshoot InP1
Bit 13
Measuring range overshoot InP2
Bit 14
Measuring range overshoot InP3
Bit 15
Calibration mode
---
Binary signals and hardware detection
Bit 0
Operation mode 2-stage
Bit 1
Manual mode
Bit 2
Binary input D1
Bit 3
Binary input D2
Bit 4
Thermostat function
Bit 5
First controller output
Bit 6
Second controller output
Bit 7
Alarm relay
Bit 13
Analog output available
Bit 14
Interface available
16
Electric connections :
With 7 pins connector version
With terminals version
Corrispondences bornes entre RWF55.5x y RWF40.0x0Matches terminals betweenRWF55.5x and RWF40.0x0
17
Parameters summarising for RWF55.xx :
ConF
Navigation menù
ConF
Inp
Inp1
Types of probe
Cntr
diSP
PArA
Opr
OFF1
SCL
SCH
Unit
SPL
SPH
dECP
Pb. 1
dt
rt
tt
HYS1 (*)
HYS3 (*)
SP1 (*)
Siemens QAE2120…
6
0
needless
needless
1
30
95
1
10
80
350
(#)
-5
5
80 °C
Siemens QAM2120..
6
0
needless
needless
1
0
80
1
10
80
350
(#)
-2,5
2,5
40°C
Pt1000 (130°C max.)
4
0
needless
needless
1
30
95
1
10
80
350
(#)
-5
5
80°C
Pt1000 (350°C max.)
4
0
needless
needless
1
0
350
1
10
80
350
(#)
-5
10
80°C
Pt100 (130°C max.)
1
0
needless
needless
1
0
95
1
10
80
350
(#)
-5
5
80°C
Pt100 (350°C max)
1
0
needless
needless
1
0
350
1
10
80
350
(#)
-5
10
80°C
Probe 4÷20mA / 0÷1,6bar
16
0
0
160
needless
0
160
0
5
20
80
(#)
0
20
100 kPa
Probe 4÷20mA / 0÷3bar
16
0
0
300
needless
0
300
0
5
20
80
(#)
0
20
200 kPa
Probe 4÷20mA / 0÷10bar
16
0
0
1000
needless
0
1000
0
5
20
80
(#)
0
50
600 kPa
Probe 4÷20mA / 0÷16bar
16
0
0
1600
needless
0
1600
0
5
20
80
(#)
0
80
600 kPa
Probe 4÷20mA / 0÷25bar
16
0
0
2500
needless
0
2500
0
5
20
80
(#)
0
125
600 kPa
Probe 4÷20mA / 0÷40bar
16
0
0
4000
needless
0
4000
0
5
20
80
(#)
0
200
600 kPa
Siemens QBE2002 P4
17
0
0
400
needless
0
400
0
5
20
80
(#)
0
20
200 kPa
Siemens QBE2002 P10
17
0
0
1000
needless
0
1000
0
5
20
80
(#)
0
50
600 kPa
Siemens QBE2002 P16
17
0
0
1600
needless
0
1600
0
5
20
80
(#)
0
80
600 kPa
Siemens QBE2002 P25
17
0
0
2500
needless
0
2500
0
5
20
80
(#)
0
125
600 kPa
Siemens QBE2002 P40
17
0
0
4000
needless
0
4000
0
5
20
80
(#)
0
200
600 kPa
Signal 0÷10V
17
0
needless
needless
needless
needless
needless
needless
5
20
80
(#)
Signal 4÷20mA
16
0
needless
needless
needless
needless
needless
needless
5
20
80
(#)
18
SEn1
NOTE:
(#) tt – servo control run time
SQL33 ; STM30; SQM10; SQM40; SQM50; SQM54 = 30 (secondi)
STA12B3.41; SQN30.251; SQN72.4A4A20 = 12 (secondi)
(*)These values are factory set - values must be set during operation at the plant based on the real working temperature/pressure value.
WARNING :With pressure probes the parameters SP1, SCH, SCL, HYS1, HYS3 must be selected, and visualized in kPa (kilo Pascal). (1bar = 100.000Pa = 100kPa)
APPENDIX: PROBES CONNECTION
To assure the utmost comfort, the control system needs reliable information, which can be obtained provided the sensors have been installed correctly.
Sensors measure and transmit all variations encountered at their location.
Measurement is taken based on design features (time constant) and according to specific operating conditions.With wiring run in raceways, the sheath
(or pipe) containing the wires must be plugged at the sensor's terminal board so that currents of air cannot affect the sensor's measurements.
Ambient probes (or ambient thermostats)
Installation
The sensors (or room thermostats) must be located in reference
rooms in a position where they can take real temperature measurements without being affected by foreign factors.
Outside probes (weather)Installation
In heating or air-conditioning systems featuring adjustment in
response to outside temperature, the sensor's positioning is of
paramount importance.
It's good to be admired …even better to be effective
Heating systems: the room sensor must not be installed in rooms with
heating units complete with thermostatic valves. Avoid all sources of
heat foreign to the system.
Location
On an inner wall on the other side of the room to heating unitsheight
above floor 1.5 m, at least 1.5 m away from external sources of heat
(or cold).
.
Installation position to be avoided
near shelving or alcoves and recesses, near doors or win-dows,
inside outer walls exposed to solar radiation or currents of cold air, on
inner walls with heating system pipes, domestic hot water pipes, or
cooling system pipes running through them.
General rule: en on the outer wall of the building where the living
rooms are, never on the south-facing wall or in a position where they
will be affected by morning sun. If in any doubt, place them on the
north or north-east façade.
Positions to be avoidedН
Avoid installing near windows, vents, outside the boiler room, on
chimney breasts or where they are protected by balconies, cantilever
roofs .
The sensor must not be painted (measurement error) .
19
Duct or pipe sensors
Installing temperature sensors
For measuring outlet air:
"after delivery fan or
"after coil to be controlled, at a distance of at least 0,5 m
For measuring room temperature:
"before return air intake fan and near room's return airintake.
For measuring saturation temperature: after mist eliminator.
Installing pressure sensors
A - installation on ducts carrying fluids at max. temperature 80°C
B - installation on ducts at temperature over 80°C and for refrigerants
C - installation on ducts at high temperatures :
·"increase length of siphon
"place sensor at side to prevent it being hit by hot air coming from
the pipe.
Bend 0.4m sensor by hand (never use tools) as illustrated .
Use whole cross-section of duct, min. distance from walls 50 mm,
radius of curvature 10 mm for 2m or 6m sensors
Installing differential pressure sensors for water
Installation with casing facing down not allowed.
With temperature over 80°C, siphons are needed.
To avoid damaging the sensor, you must comply with the following
instructions :
when installing: make sure pressure difference is not greater than the value
permitted by the sensor
when there are high static pressures, make sure you insert shutoff valves
A-B-C.
Putting into operation
Start disable
1=open C1=open C
2=open A2=close B
3=open B3=close A
4= close C
Installing combined humidity sensors
As max. humidity limit sensor on outlet (steam humidifiers) .
20
Immersion or strap-on sensors
Immersion probes installation
Sensors must be installed on the stretch of pipe in which fluid circulates all the time.
The rigid stem (sensing element doing the measuring) must be inserted by at least 75mm and must face the direction of flow.
Recommended locations: on a bend or on a straight stretch of pipe
but tilted by 45° and against the flow of fluid.
Protect them to prevent water from infiltrating (dripping gates, condensation from pipes etc.) .
Installing QAD2.. strap-on sensors
Make sure fluid is circulating in the chosen location.
Eliminate insulation and paintwork (including rust inhibitor) on a min.
100mm length of pipe.
Sensors come with straps for pipes up to 100 mm in diameter .
Placing the probes (QAD22.../QAE21.../QAP21.../RCA...)
With pumps on outlet
Strap-on or immersion sensors?
QAD2.. strap-on sensors
with 3 ways valves / with 4 ways valves
Advantages :
z 10 sec. time constant
z Installed with system running (no plumbing work)
z Installation can be changed easily if it proves incorrect
ПLimits:
z Suitable for pipe diameters max. 100 mm
z Can be affected by currents of air etc.
QAE2... immersion sensors
Panel system / burner control
Advantages:
z Measure "mean" fluid temperature
z No external influence on measurement such as: currents of air,
nearby pipes etc.
Limits:
z Time constant with sheath: 20 sec.
z Hard to change installation position if it proves incorrect
With pumps on return
with 3 ways valves / with 4 ways valves
21
Duct pressure switches and sensors
Installing differential pressure probes for air
Basic principles
Measuring static pressure(i.e. pressure exerted by air on pipe
walls)
A - Control a filter (clogging)
Measuring dinamic pressure
B - Control a fan (upstream/downstream)
Legend
y
Kg/m3, specific weight of air
q
m/s, air speed
g
9.81 m/s2 gravity acceleration
Pd
mm C.A., dynamic pressure
Measuring total pressure
C - Measurement of difference in pressure between two ducts
D - Measurement of difference in pressure between two rooms or
of inside of duct and outside
22
Note: Specifications and data subject to change. Errors and omissions excepted.
23
MANUALE USER SUPPORT
MULTI-THERMOSTAT
MCX06C
MCX06C is a multi-thermostat with four 100k NTC inputs. It can control up to 4 temperatures showing them
(not more than 2 at the same time) on a couple of displays.
It is used to check and adjust oil heater temperatures. it works as follows:
as soon as the burner control gives the GO to the digital 1 input (terminals DI1-COM), the adjustment program runs
(the relevant LED is ON). Reading the outlet temperature through the probe Pb3 (terminals AI3-COM), a PID
signal is produced. This signal becomes the set-point for the electric resistors. The electric resistors temperature is
read through the probe Pb1 (terminals AI1-COM) so that a second PID signal is produced. This second PID drives
a couple of SCR by means of 0-10 V impulses in order to control the electric resistors temperature.
When the burner is in stand-by, resistor set-point is kept at the temperature set in parameter "p30" (see parameter
group REG).
Probe Pb4 (terminals AI4-COM) controls the inner heater temperature. As soon the relevant set-point is got, it
drives the output number 4 (terminals C4-NO4) linked to the relais KTCN. This allows the oil pump to start and also
the burner control proceeds with its cycle.
When set-point trS is got to, output number 5 is ON (terminals C5-NO5) linked to the relais KTRS. It switches the
resistors off and activates an alarm on the device.
Probe Pb2 (terminals AI2-COM), when fitted, drives output number 2 (terminals C2-NO2) linked to the relais KTCI.
This allows the burner control to proceed with ignition.
See below the set-point recommended figures.
User interface:
Device:
Alarm
Display A
UP button/
one step
back on the
menu
Display B
ESC button/
Escape from the
chosen parameter
/back to the previous
menu
ENTER button/
Confirmation/ahead
to the next
menu/enter the
parameter to modify
Warning
Trains
output
Adjustment
program
running
Not used
DOWN button/
one step forward
on the menu
Note :
In normal operation, the display A shows the oil tank resistor temperature (probe Pb1).
In normal operation, the display B shows the oil output temperature (probe Pb3).
COD. M12924CA Rel. 0.5 03/2016
Connections from terminal side :
24V AC
Probe connection:
input AI1 = probe Pb1 = set-point “tr” = oil heater temperature probe;
input AI2 = probe Pb2 = set-point “tCI” = plant consent temperature probe (when installed);
input AI3 = probe Pb3 = set-point “OIL” = oil heater output temperature probe (PID regulation);
input AI4 = probe Pb4 = set-point “tcn” = oil heater consent temperature probe.
Pb4
Pb3
Pb1
COD. M12924CA Rel. 0.5 03/2016
(tCI - Pb2 probe only for mechanical atomizing burners)
Menu :
To enter the menu below, keep pushing ENTER for more than 3 s.
Menu code
Prb
Sub-menu code
Log
Par
ALA
Loc
InF
tUN
Function
Probes values
Login
PAS
Password
Parameters menu
CnF
rEG
Configuration menu
Regulation menu
Alarm menu
Active alarms
Reset alarms
Lock/Unlock functions
Software version
Autotuning
Act
rES
rEL
Notes
You can see in sequence the 4 probe
values (UP and DOWN keys): the probe
code is on display A (Pb1,..., Pb4) and the
probe value is on display B (not fitted or out
of work probes show “----“).
It defines the access level to menu and
parameters (password)
Password input
Access to parameters (you have to login
first)
Parameter configuration
Set to set-point, probe, thresholds etc.
Access to alarm management
Show the active alarms
Reset of the manual reset alarms
Not used
Installed software version
Activation On, deactivation ESC
PID parameter autotuning
Login:
All the parameters inside the Par menu are locked by a password.
Without password, only set-points can be modified.
To login, on the log menu, press ENTER for more than 3 s. Input your password (level 2 or 3) inside PAS
With password for level 3 all the data can be set.
COD. M12924CA Rel. 0.5 03/2016
submenu CnF - configuration parameters group :
Menu
Parameter
CnF
AI1
AI2
AI3
AI4
dI
dI
SIC
SyS
PAS
Description
CONFIGURATION
Analog Input 1
A1P
A1C
Probe 1 Presence
Calibration Probe 1
Analog Input 2
A2P
A2C
Probe 2 Presence
Calibration Probe 2
Analog Input 3
A3P
A3L
A3H
A3C
Probe 3 Presence
Min. Value conversion AI3
Max. Value conversion AI3
Calibration Probe 3
Analog Input 4
A4P
A4L
A4H
A4C
Probe 4 Presence
Min. Value conversion AI4
Max. Value conversion AI4
Calibration Probe 4
Digital input
Input 1 polarity (Pump)
Alarm polarity from input 2
Alarm polarity from input 3
Alarm polarity from input 4
Alarm polarity from input 5
Alarm polarity from input 6
Digital output
Alarm and Warning
Polarity output Warning
Polarity output Alarm
Safety probe
dI1
dI2
dI3
dI4
dI5
dI6
dO5
dO6
SIp
Selection of safety probe
Syistem
dSA
display A output
dSb
display B output
Password
Password level 1
Password level 2
Password level 3
PL1
PL2
PL3
Additional description
Min
Max
Default
U.M.
Visibility
condition
Password
level
Modbus
index
0
1
This parameter enables or disables the
probe
Don't modify it
0
-20,0
1
20,0
1
0,0
°C
A1P >0
1
2
This parameter enables or disables the
probe
Don't modify it
2
3
1
0
-20,0
1
20,0
1
0,0
°C
A2P >0
3
4
This parameter enables or disables the
probe
Don't modify it
Don't modify it
Don't modify it
2
3
1
0
-999,9
-999,9
-20,0
4
999,9
999,9
20,0
1
0,0
30,0
0,0
°C
A3P >2
A3P >2
A3P >0
5
6
7
8
This parameter enables or disables the
probe
Don't modify it
Don't modify it
Don't modify it
2
3
3
3
1
0
-999,9
-999,9
-20,0
4
999,9
999,9
20,0
1
0,0
30,0
0,0
°C
A4P >2
A4P >2
A4P >0
9
10
11
12
Change type of digital input ( NC o NO)
Change type of digital input ( NC o NO)
Change type of digital input ( NC o NO)
Change type of digital input ( NC o NO)
Change type of digital input ( NC o NO)
Change type of digital input ( NC o NO)
0
0
0
0
0
0
1
2
2
2
2
2
1
2
2
2
2
2
2
3
3
3
1
3
2
2
2
2
2
Change type of digital input ( NC o NO)
Change type of digital input ( NC o NO)
0
0
1
1
0
0
Probe which also activates the relay
Warning (ns. KTRS)
0
4
4
3
0
21
0
8
1
3
22
0
8
3
23
0
0
0
9999
9999
9999
0
3
1
1
2
3
Probe temperature or set-point to be
displayed in the left display
Probe temperature or set-point to be
displayed in the right display
1
3
3
1
13
14
15
16
17
18
19
20
32
33
34
COD. M12924CA Rel. 0.5 03/2016
Menu
tUN
Parameter
tU1
tU2
tU3
tU4
tU5
tU6
tU7
Description
Autotuning
Output temperature hysteresis
Startup number
Measurement cycles number
Max. differential command
exit
Differential reduction exit
command (%)
Calculating mode:
0= Symmetrical;
1=Asymmetrical;
2=Simple
Enabling
Additional description
Min
Max
Default
U.M.
Don't modify it
Don't modify it
Don't modify it
Don't modify it
0
0
1
50,0
5
4
0,5
2
2
°C
0,01
10,00
10,00
V
0
100
0
0
2
1
Don't modify it
Don't modify it
Don't modify it
Visibility
condition
Level
3
3
3
3
Modbus
index
35
36
37
3
38
15
3
39
2
1
3
3
40
41
COD. M12924CA Rel. 0.5 03/2016
Submenu REG – regulation parameters group :
Menu
REG
Pb1
Parameter
rES
AL1
Pb2
AH1
d01
tCI
AL2
Pb3
AH2
d02
rE3
OIL
AL3
AH3
Pb3
db3
rt3
dt3
db3
Description
REGULATION
Probe 1
Set-point Probe 1
(Tank resistor)
Probe 1 - Low Temperature Alarm
Threshold
Probe 1 - High Temperature Alarm
Threshold
Probe 1 differential
Probe 2
Set-point Probe 2
(Plant Consent)
Probe 2 - Low Temperature Alarm
Threshold
Probe 2 - High Temperature Alarm
Threshold
Probe 2 differential
Probe 3
Type of regulation of probe 3
(Oil tank exit)
Set-point Probe 3 (Oil tank exit)
Probe 3 - Low Temperature Alarm
Threshold (Oil tank exit)
Probe 3 - High Temperature Alarm
Threshold (Oil tank exit)
Proportional band for PID Probe 3
(Oil tank exit)
Dead Zone for PID Probe 3
(Oil tank exit)
Integral Time (Ti) for PID Probe 3
(Oil tank exit)
DerivativeTime (Td) for PID Probe 3
(Oil tank exit)
Dead Zone for PID Probe 3
(Oil tank exit)
Additional description
Don't modify it
Don't modify it
Don't modify it
Plant consent according to table
“Set point adjustment”
Don't modify it
Don't modify it
Type of regulation
0= thermostat; 1= PID (don't modify)
Nozzle oil temperature according to the
table “Set point adjustment”
Don't modify it
Don't modify it
Proportional band for first PID regulation
Dead zone for first PID regulation
Integral time for first PID regulation
Derivative time for first PID regulation
(~ ¼ di rt3)
Dead zone for first PID regulation
Visibility
condition
Level
Modbus
index
Min
Max
Default
U.M.
-50,0
200,0
0,0
°C
3
42
-50,0
200,0
-50,0
°C
3
43
-50,0
0,0
200,0
20,0
200,0
3,0
°C
°C
3
3
0
44
45
-50,0
200,0
120,0
°C
0
46
-50,0
200,0
-50,0
°C
2
47
-50,0
0,0
200,0
20,0
200,0
3,0
°C
°C
2
2
0
48
49
0
1
1
3
50
-50,0
200,0
130,0
°C
0
51
-50,0
200,0
-50,0
°C
2
52
-50,0
200,0
200,0
°C
2
53
0,0
200,0
60,0
3
54
0,0
20,0
0,0
°C
rE3 =1
3
55
0,0
1000,0
120,0
s
rE3 =1
3
56
0,0
300,0
30,0
s
rE3 =1
3
57
0,0
20,0
0,0
°C
rE3 =1
3
55
0
0
COD. M12924CA Rel. 0.5 03/2016
Menu
Parameter
pi1
pi2
pi3
pi4
SL3
p21
p22
p23
p24
p25
p26
p27
p28
p29
Pb4
SP0
tcn
AL4
trS
d04
Description
Overshooting for Integral action
(Oil tank exit)
Derivative action enabling
(Oil tank exit)
Filtering factor for derivative action
(Oil tank exit)
Duty cicle PWM for output DO3
and/or AO1 (0-10V)
Output selection DO3 and/or AO1
(0-10V)
Proportional band for PID Probe 1
(Tank resistor)
Dead Zone for PID Probe 1
(Tank resistor)
Integral Time (Ti) for PID Probe 1
(Tank resistor)
DerivativeTime (Td) for PID Probe 1
(Tank resistor)
Overshooting for Integral action
(Tank resistor)
Derivative action enabling
(Tank resistor)
Filtering factor for derivative action
(Tank resistor)
Min Output PID Probe 3
(Oil tank exit)
Max Output PID Probe 3
(Oil tank exit)
Set-point Tank Resistor with oil
pump stops (stand by)
Probe 4
Setpoint Probe 4
(Oil consent)
Low Threshold Probe 4
Probe 4 - High Temperature Alarm
Threshold
(Safety Thermostat)
Probe 4 differential
Additional description
Don't modify it
Don't modify it
Don't modify it
Don't modify it
Digital selection output for control
thyristors; Don't modify it
Proportional band for second PID
regulation
Dead zone for second PID regulation
Integral time for second PID regulation
Derivative time for second PID regulation
Don't modify it
Don't modify it
Don't modify it
Minimum value tank resistor set-point
(delta of 100°C above p29)
Maximum valuetank resistor set-point
Set-point of maintaining resistance during
stand by “Set point adjustment”
Oil consent according table “Set point
adjustment”
Tank resistor safety temperature according
table “Set point adjustment”
Min
Max
Default
100
1000
200
0
1
1
U.M.
Visibility
condition
Modbus
index
Level
=
rE3 1
3
58
1
=
rE3 1
3
59
100
20
=
rE3 1
3
60
1
300
5
=
rE3 1
3
61
0
2
AO1
3
62
0,0
200,0
50,0
rE3 =1
3
63
0,0
20,0
0,0
°C
rE3 =1
3
64
0,0
1000,0
110,0
s
rE3 =1
3
65
0,0
300,0
23,0
s
rE3 =1
3
66
100
1000
200
=
rE3 1
3
67
0
1
1
=
rE3 1
3
68
1
100
20
=
rE3 1
3
69
0,0
1000,0
80,0
°C
rE3 =1
3
70
0,0
1000,0
180,0
°C
rE3 =1
3
71
-50,0
200,0
140,0
°C
rE3 =1
0
0
72
-50,0
-50,0
200,0
200,0
110,0
-50,0
°C
°C
0
2
73
74
-50,0
0,0
200,0
20,0
190,0
3,0
°C
°C
0
2
75
76
s
COD. M12924CA Rel. 0.5 03/2016
Alarms & Warning:
When the red triangle on the top left lights, one or more alarms are activated.
When the red key on the left lights, the output N05-C5 is active and the relay KTRS switches the resistors OFF.
Check the reason, correct the failure and, as soon as the temperature is lower than trS, reset it through ALA/rES .
In order to show active alarms and warnings, select the relevant menu through ALA/Act.and, using the UP and
DOWN buttons, scroll the lines.
In order to perform the manual reset, select ALA/rES.
Code
trS
EP1
EP2
EP3
EP4
Description
High temperature resistors alarm
Probe Pb1 fault
Probe Pb2 fault
Probe Pb3 fault
Probe Pb4 fault
Sourse
probe Pb4 > value trS
Probe Pb1 fault
Probe Pb2 fault
Probe Pb3 fault
Probe Pb4 fault
Active simbol
red key
red triangle
red triangle
red triangle
red triangle
Reset type
Manual
Automatic
Automatic
Automatic
Automatic
Set point adjustment:
All the parameters inside the Par menu are locked by a password. The user can modify only set points, without
using any passwords.
The oil viscosity at the nozzle, should be about 1,5°E, which guarantees correct and safe functioning of the burner.
The temperature values in the table, guarantee the respect of that parameter and are valid when the pre heating
tank is installed on the burner. For different configurations , please refer to the chapter "Recommendations to
design heavy oil feeding plants" on the burner manual
Here below recommended set points:
Menu path
Par
rEG
Pb1
Oil viscosity at 50 °C according to the letter shown in the
burner model
P
N
E
D
H
89 cSt
< 50 cSt
> 50 cSt
> 110 cSt
> 400 cSt
< 110 cSt
< 400 cSt
< 4000 cSt
12 °E
< 7°E
> 7 °E
> 15 °E
> 50 °E
< 15 °E
< 50 °E
< 530 °E
tr
Oil heater temperature
parameter not visible
probe
Pb2 tCI
Plant consent
temperature probe
20 °C
70 °C
70 °C
70 °C
--(when installed)
Pb3 Oil
oil heater output
temperature probe (PID
60-70 °C
110-120 °C 120-130 °C 130-140 °C 140-150 °C
regulation);
SP0 Set-point oil heater with
oil pump stopped
45 °C
120 °C
130 °C
140 °C
150 °C
(stand-by)
Pb4 tcn
Oil heater consent
40 °C
100 °C
100 °C
110 °C
120 °C
temperature probe
trS
Safety temperature tank
resistors
120 °C
190-200 °C 190-200 °C 190-200 °C 190-200 °C
(manual reset)
The above temperature values are suggested and refer to a plant designed according to the prescriptions in the
burner user manual.
The suggested values can change in reference to the fuel oil specifications.
COD. M12924CA Rel. 0.5 03/2016