Riello TN ECO Series User manual

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PRESS T/N - TN ECO Series
Three Stage Heavy Oil Burners
P 140 T/N 320/800 ÷ 1600 kW
P 200 T/N 515/1140 ÷2280 kW
P 300 T/N 626/1710 ÷ 3420 kW
P 450 T/N 855/2560 ÷5130 kW
P 140 T/N ECO 320/800 ÷ 1600 kW
P 200 T/N ECO 515/1140 ÷2280 kW
P 300 T/N ECO 626/1710 ÷ 3420 kW
P 450 T/N ECO 855/2560 ÷ 5130 kW
HEAVY OIL
TECHNICAL DATA LEAFLET

PRESS T/N - T/N ECO SeriesThree Stage Heavy Oil Burners
The PRESS T/N series of burners covers a firing range from 800 to 5130 kW. They have been designed in three
versions for use in commercial and industrial installations, to burn different oil viscosity from 7 up to 60 °E
@ 50°C. Operation is three-stage, thus making these burners suitable for installations that have variable but
predictable heating requirments.
A servomotor adjusts automatically air damper to the opening value, determined to obtain always the necessary
fuel consumption. Every model of PRESS T/N series is available in two different combustion head lenght (short
or long head) to be selected on the basis of specific application requirments. An electric preheater has been
fitted to maintain the oil at the correct atomising temperature at maximum ouput and special heaters kits are
separately supplied for burning high viscosity oil.
Simplified maintenance is achieved by the Riello designed slide bar system, which allows easy access to all of the
essential components of the combustion head.
A RIELLO burner (Heat Generator), where it is matched with a water-based boiler (Heater Housing) with a nominal
output ≤ 400 kW, providing heat for heating purposes and heat to deliver sanitary hot water, can be installed:
- With boilers (heater housings) already in service in the field, for replacement, in conformity to Article 1,
paragraph 2, point (G) of the EU Regulation No. 813/2013;
- With boilers (heater housings) on a new installation, put on the market after 26th of September 2015;
- With all new boilers (heater housings), where placed on the market before 26th of September 2015.
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Technical Data
MODEL P 140 T/N (ECO) P 200 T/N (ECO) P 300 T/N (ECO) P 450 T/N (ECO)
Burner operation mode Three stage
Modulation ratio at max. output 2 ÷ 1
Servomotor type LKS 210 LKS 300
run time s 5 4
Heat output
kW 320/800 ÷ 1600 515/1140 ÷ 2280 626/1710 ÷ 3420 855/2560 ÷ 5130
Mcal/h 275/688 ÷ 1376 443/980 ÷ 1961 538/1471 ÷ 2941 727/2202 ÷ 4412
Kg/h 28/70 ÷ 140 45/100 ÷ 200 55/150 ÷ 300 75/224 ÷ 450
Working temperature °C min./max. 0/40
FUEL/AIR DATA
Heavy oil net calorific value
kWh/kg 11.4
kcal/kg 9800
MJ/kg 41
Low viscosity version mm2/s (cSt) 50 @ 50°C
Pump type Suntec E7 Suntec E7 Suntec TA2 Suntec TA3
delivery Kg/h 340 (at 25 bar) 340 (at 25 bar) 470 (at 25 bar) 750 (at 25 bar)
Medium viscosity version 200 @ 50°C (with heavy oil kit already installed in factory)
High viscosity version
(ECO models) mm2/s (cSt) 450 @ 50°C (separate 1400 rpm pump + heavy oil kit + pipes heating cable
already installed installed in factory)
Pump type Suntec TA2 Suntec TA3 Suntec TA4 Suntec TA5
delivery Kg/h 235 (at 25 bar) 385 (at 25 bar) 500 (at 25 bar) 670 (at 25 bar)
Atomised pressure bar 25
Fuel temperature max. °C 60
Fuel pre-heater YES
Fan type Centrifugal with forward tilted blades
Air temperature max. °C 60
ELECTRICAL DATA
Start up type Star - Delta
Electrical supply Ph/Hz/V 3N/50/400 ~ (± 10%) 3/50/230 ~ (± 10%)
Auxiliary electrical supply Ph/Hz/V 1/50/230 ~(± 10%)
Control box type RMO 88
Total electrical power kW 18.6 19.5 32 37
Auxiliary electrical power kW 1.6 1.5 2.9 2.4
Heaters electrical power kW 14 14 19.6 19.6
Protection level IP 40
Fan
motor
electrical power kW 3 4 7.5 15
rated current A13.5/8 16.4/9.5 30/17.5 50.2/29
start up current A 86 - 51 83 - 48 195 - 113 301 - 174
protection level IP 55
Pump
motor
electrical power kW 0.55 0.55 0.75 1.1
rated current A3.1/1.8 3.1/1.8 3.7/2.1 4.7/2.7
Ignition transformer
type --
V1 - V2 230 V - 2 x 6.5 Kv
I1 - I2 2 A - 35 mA
Operation Intermittent (at least one stop every 24h)
EMISSIONS
Noise
levels
sound pressure dB (A) 86.3 87 87.6 88.2
sound power 97.3 98 98.6 99.2
Light oil
CO emission mg/kWh < 200
grade of smoke
indicator N° Bacharach < 10
CxHy emission mg/kWh --
NOx emission mg/kWh < 620
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PRESS T/N - T/N ECO SeriesThree Stage Heavy Oil Burners
Firing Rates
Useful working field
for choosing the
burner
Test conditions
conforming to
EN267
Temperature: 20°C
Pressure: 1013.5
mbar
Altitude: 0 m a.s.l.
PRESS 140-200-300-450 T/N (ECO)
MODEL P 140 T/N (ECO) P 200 T/N (ECO) P 300 T/N (ECO) P 450 T/N (ECO)
APPROVAL
Directive 2006/42/EC - 2014/30/UE - 2014/35/UE
Conforming to EN 267
Certification - -
Reference conditions: Temperature: 20°C - Pressure: 1013.5 mbar - Altitude: 0 m a.s.l. - Noise measured at a
distance of 1 meter. Sound pressure measured in manufacturer’s combustion laboratory, with burner operating
on test boiler and at maximum rated output. The sound power is measured with the “Free Field” method, as
per EN 15036, and according to an “Accuracy: Category 3” measuring accuracy, as set out in EN ISO 3746.
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HYDRAULIC CIRCUIT
The burners are fitted with a valve group (a safety valve fitted
in series with three oil delivery valves), an oil filter and an oil
preheater unit along the oil line from the pump to the nozzle.
A thermostatic control device, on the basis of required heat,
regulates oil delivery valves opening, allowing heavy oil passage
through the valves to the nozzles.
Delivery valves open contemporary to the air damper, controlled
by a servomotor.
The pumping group is fitted with a pump, an oil filter
and a regulating valve, that adjusts atomised pressure.
This value is pre-set at 25 bar in the factory, but it can be
changed (28 bar for higher viscosity oils) by adjusting pressure
regulator fitted on the pump.
The preheater unit is fitted with an electrical heater, a minimum
and a maximum oil temperature switch and an oil temperature
regulator.
T
Vg
MM
P
U1
S
TE
VS
U2
U3
S1
V3 V2
V1
T
S3
S2
TM
Tm
Hydraulic circuit
MM Oil delivery gauge
PPump with oil filter
SOil preheater
S 1-2-3 Shutter
TThermometer
TE Oil temperature regulator
Tm Min. oil temperature switch
TM Max. oil temperature switch
U 1-2-3 Nozzles
V 1-2-3 Delivery oil valves
VG Oil pressure relief valve
VS Safety valve
The 3 stage burner series can burn different heavy oil
type from 50 up to 450 cSt @ 50°C ( up to 60°E @ 50°C).
For different viscosity levels Riello recommends 3
different configurations:
1) Press T/N version for viscosity up to 50 cST ( °E) @ (50°C:
basic version with 2800 rmp oil pump installed
directly on fan motor shaft
2) Press T/N version for viscosity up to 200 cST (25°E) @
50°C: as basic version + heavy oil cartridges factory
installed on nozzles, pump and valves group
3) Press T/N ECO version for viscosity up to 450 Cst (60°E)
@ 50°C:
- with separate 1400 rpm low speed pump
- heavy oil cartridges factory installed on nozzles, pump
and valves group
- pipes heating cable factory installed.
VISCOSITY
PRESS T/N ECO
PRESS T/N
Fuel Supply
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PRESS T/N - T/N ECO SeriesThree Stage Heavy Oil Burners
The fuel feed must be completed with the safety devices required by the local regulations in force.
IMPORTANT NOTES
- The oil could easily flow through the pipes if those are properly sized, protected and heated (by electricity,
steam or hot water).
- For starting-up: after excluding the burner by the shutter valves, let the oil flow into the supply ring up to
reach the required circulation; after that open the valves and supply normally the burner.
- The forwarding pump should have at least a double capacity than that one of the burner. For several burners
supplied through the same ring supply line, the forwarding pump should have a capacity of approximatively
30% more than the sum of the single burner output.
SELECTING THE FUEL SUPPLY LINES
F
BR
SB2
RS2
P
P2
VR2 VC
B
VG
P1
VGZ
TM
VS
TE
T
MM
PS
TF1
TF1
T
BGas separator bottle
BR Burner
FOil filter
MM Oil delivery gauge
PDouble pumping unit with filter
and heater on transfer ring
PS Electrical preheater
P1 Pump with heater – burner circuit
P2 Double pumping unit with filter
and heater on main ring
RS2 Tank heater
SB2 Service tank
TThermometer
TE Temperature switch regulation
TF1 Flexible oil line
TM Max oil temperature switch
VC Vent valve
VGZ Safety valve – burner circuit
VR2 Oil valve – main ring
VS Preheater safety valve
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Ventilation
The ventilation circuit is provided with a forward blades centrifugal
fan, which guarantees high pressure levels at the required air
deliveries and permits installation flexibility.
Inspite of the remarkable output power and of the very high
pressure performances, structures of PRESS T/N models are
extremely compact.
The use of sound proofing boxes helps in reducing the noise level.
A variable profile cam connects fuel and air setting, ensuring fuel
efficiency in all firing rates.
Combustion Head
Two different lenghts of the combustion head can be chosen for the
various models of the PRESS T/N series of burners.
The choice depends on the thickness of the front panel and the type of
the boiler.
Depending on the type of heat generator, it is necessary to check the
correct head penetration into the combustion chamber.
The internal position of the combustion head can easily be adjusted:
refer to the burner instruction manual for the complete procedure.
The following diagram shows the flame dimensions in relation to the
burner output.
The lenght and diameter shown in the diagram below should be employed
for a preliminary check: it is required a more careful investigation if
combustion chamber dimensions are much different from the above
reported values.
Min output
Max output
Servomotor
Combustion head
Example:
Burner thermal output = 3500 kW;
L Combustion Chamber (m) = 3.5 m (medium value);
D Combustion Chamber (m) = 1 m (medium value)
SUGGESTED COMBUSTION CHAMBER DIMENSIONS
Combustion chamber
length (m)
Combustion chamber
diameter (m)
Burner output (kW)
L max
L min
D max
D min
D
L
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MODEL STAGE MAX OUTPUT (kW) MAX DELIVERY (Kg/h)
P 140 T/N (ECO) 1st 536 47
2nd 1060 93
3rd 1595 140
P 200 T/N (ECO) 1st 763 67
2nd 1516 133
3rd 2279 200
P 300 T/N (ECO) 1st 1140 100
2nd 2280 200
3rd 3420 300
P 450 T/N (ECO) 1st 1710 150
2nd 3420 300
3rd 5130 450
PRESS T/N - T/N ECO SeriesThree Stage Heavy Oil Burners
Operation
BURNER OPERATION MODE
With three stage operation, the PRESS T/N burners can follow the temperature load requested by the system.
A ratio between maximum and minimum working output of 3:1 is reached, thank to the servomotor: the air
delivery is proportional to required output. On three stage operation, the burner gradually adjusts output to the
requested level, by varying between the three pre-set levels.
“THREE STAGE” OPERRATION
Both elements are located under the transparent
cover of lock-out reset button, as showed below.
There are two diagnostic choices, for indication
of operation and diagnosis of fault cause:
VISUAL DIAGNOSIS
The lock-out reset button is the central
operating element for resetting the burner
control and for activating / deactivating the
diagnostic functions.
The multi-color LED is the central indication
element for visual diagnosis and interface
diagnosis.
All PRESS T/N series burners are fitted with a new microprocessor control panel for the supervision during
intermittent operation. For helping the commissioning and maintenance work, there are two main elements:
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TABLET/PC
or
FLUE GAS
ANALYSER
INTERFACE ADAPTER
INTERFACE DIAGNOSIS
By the interface adapter and a PC with dedicated
software or by a predisposed flue gas analyzer
(see paragraph accessories).
COLOR CODE TABLE
Operation status Color code table
Stand-by
Pre-purging
Ignition phase
Flame OK
Poor flame
Undervoltage, built-in fuse
Fault, alarm
Extraneous light
LED off
INDICATION OF OPERATION
In normal operation, the various status are
indicated in the form of colour codes according
to the table below.
The interface diagnosis (with adapter) can be
activated by pressing the lock-out button for
over 3 seconds.
DIAGNOSIS OF FAULT CAUSES
After lock-out has occurred, the red signal lamp is steady on. In this status, the visual fault diagnosis according
to the error code table can be activated by pressing the lock-out reset button for over 3 seconds.
The interface diagnosis (with adapter) can be activated by pressing again the lock-out button for over 3
seconds.
The flashing of red LED are a signal with this sequence:
(e.g. signal with n° 3 flashes – faulty air pressure monitor)
( LED off)
3s 3s 3s
ERROR CODE TABLE
POSSIBLE CAUSE OF FAULT FLASH CODE
No establishment of flame at the end of safety time: - faulty photocell
- faulty or soiled oil valves
- poor adjustment of burner
- faulty ignition transformer
2x flashes
Not used 3x flashes
Light in the chamber before firing 4x flashes
Loss of flame during operation: - faulty or soiled oil valves
- poor adjustment of burner 7x flashes
Faulty thermostat for oil permissive signal
Heating resistances blown 8x flashes
Wiring error internal fault 10x flashes
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PRESS T/N - T/N ECO SeriesThree Stage Heavy Oil Burners
Emissions
The emission data has been measured in the various models at maximum output, according to EN 267 standard.
NO2EMISSIONS
PRESS 140 T/N (ECO) PRESS 200 T/N (ECO) PRESS 300 T/N (ECO)
PRESS 450 T/N (ECO)
mg/kWh
0
100
200
300
400
600
700
800
500
CO EMISSIONS
30
60
90
120
150
180
210
240
0
PRESS 140 T/N (ECO)
mg/kWh
PRESS 200 T/N (ECO)
PRESS 300 T/N (ECO)
PRESS 450 T/N (ECO)
NOISE EMISSIONS
dB(A)
0
10
20
30
40
50
60
70
80
90
PRESS 140 T/N (ECO) PRESS 200 T/N (ECO) PRESS 300 T/N (ECO) PRESS 450 T/N (ECO)
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