Riello Burners PRESS 100 N Guía de inicio rápido
2915896 (2) - 01/2009
Installation, use and maintenance instructions
Heavy oil burner
CODE MODEL TYPE
3435985 PRESS 100 N 617 T80
3435986 PRESS 100 N 617 T80
5896 1
1- Suction line
2- Return line
3- Pump pressure adjustment screw
4- Manometer plug (G1/8)
5- Vacuometer plug (G1/2)
6- Air shutter opening motor
7- Control box reset push-button and lock-out lamp
8- Reset push-button of the motor over load relay
9- Regulating bush for combustion head
10 - Sheathed filter for the thermometer
11 - Valves group
12 - Manometer with protection valve 16 - Wiring terminal board
13 - Adjustment thermostat 17 - Fair leads
14 - Pre-heater relay 18 - Back-pressure valve
15 - Ignition transformer
DIMENSIONS
Thermal power - Output 285 / 490 - 1140 kW - 25 / 43 - 100 kg/h
Operation Two stages
Fuel Oil with max. viscosity at 50 °C: 150 mm2/s (20 °E)
Electrical supply Three phase 220V +10% -10% ~ 60Hz without neutral
380V +10% -10% ~ 60Hz with neutral
Motor 7.4 A / 220V - 4.3 A / 380V
Ignition transformer Primary: 2 A - Secondary: 2x 6.5 kV / 35 mA
Heaters 7 kW
Absorbed electrical power 9 kW
Pump 150 kg/h at 20 bar
Fig. 1
*For extended head version
Quantity Accessories
2 Flexibles tubes
2 Nipples
2 Seals
4Screws
1 Gasket for flange
2 * Extensions for bars
5896 2
COMBUSTION CHAMBER PRESSURE - MAXIMUM OUTPUT
(two nozzles in operation)
When the burner operates with only one nozzle, the pressurization conditions are improved and no problems
arise.
Minimal fuel capacity with only one nozzle: 25 kg/h - 285 kW
Note for the extended combustion head version
Apply the extensions provided as accessories for the burner withdrawing.
kW
kg/h
mbar
Front plate detail for
boiler mounting
5896 3
FUEL OIL GRAVITY FEED SYSTEMS
Gravity system (fuel oil with viscosity max. 7°E at 50° C)
Pump priming: loose the tap of the
vacuometer plug 5) (fig. 1) and wait
for the fuel flow.
H: Difference in the pipes height.
L: Length of the suction pipe.
SUCTION SYSTEM (fuel oil with viscosity max. 7°E at 50°C)
Not advised, to be used only in case of previously existing system.
Never overcome the max. de-
pression of 0.5 bar (38 cm Hg).
With higher values the fuel em-
anates gas.
The pipes shall be perfectly
sealed. When the tank is
placed below of the burner lev-
el, the return pipe should reach
the same level of the suction
pipe.
In this case the foot valve is not
required.
RING SYSTEM (for heavy oil with viscosity up to 65°E at 50°C)
1- Tank (properly heated for heavy oil) 5- Forwarding pump
2- Filter (with resistance for oil >7°E/50°C) 6- Manometer
3- Burner 7- Burner pump
4- Couple of cocks (excluding the burner) 8- Pressure adjuster
Notice: All the pipes have to be properly seized, sealed and heated (elect. resistance or hot steam or water) to
let the fuel flow.
Warning: Before to put the burner in operation verify that no obstruction exists into the pipes, any obstruction may
damage the sealing of the pump.
H
meters
L meters
ø 3/4”
gas ø 1”
gas
035
0.5 6 10
1915
1.5 12 20
21525
H
meters
L meters
ø 1”
gas ø11/4”
gas
01226
0.5 10 22
1918
1.5 7 15
2512
2.5 4 9
3-6
5896 4
ELECTRICAL WIRING CONNECTIONS
(carried out by the factory)
KEY TO LAYOUT
CMV Fan motor contactor
CR Pre-heart contactor
FSuppressor
FR Photoresistance
MB Wiring terminal board
MV Fan motor
RMO Control box
RT Therminal overload
S Pre-heart
SM Servomotor
TA Ignition transformer
TB Earth of the burner
TE Start-up and adjustment thermostat
Tm Minimum value contact thermostat
TM Maximum value contact thermostat
V… Electromagnetic valves
Tm
1
246 95
96
A2
135
M
3
14
13 A1
TB
F
TM
654321987
S
CR
A2
A1
426
135
3
5
2
11
6
8
7
V2
TE
RT
MV
V1
TB
FR
SM
M
R2
R1
ST2
ST1
ST0
HS1
MV2
-+
1
4
171318 9 5 8114
TB
10
TA
1512 16
MB
RMO88. 53A2RMO88. 53A2
L1R
L2R
L3R
NL1 L2 L3 L S3 T1 30 T2 T6 T8
V2 1
V2 2
CMV
N
D2613
5896 5
ELECTRICAL CONNECTIONS TO THE WIRING TERMINAL BOARD
(to be carried out by the installer)
NOTE
- Leads minimal section: 1,5 mm2.
WARNING
For supply at 220 Vmakethe triangle connection on the pre-heater andonthe motor (the original connection is “star”
for 380 V).
TWO STAGE OPERATION
It can be achived by the thermostat connected to 14 - 15 wiring terminal board (removing the bridge) controlling 2nd
valve.
PRE-HEATER RESISTANCES CONNECTIONS
D2644
220V 380V
A Ampere T16 T10
B mm21,5 1,5
C Ampere T25 T16
D mm264
KEY TO LAYOUT
HRemote lock-out signal
IN Manual burner stop switch
MB Wiring terminal board
TL Limit control device system
TR High-low mode control device system
TS Safety control device system
5896 6
FASTENING OF THE ELECTRICAL WIRES
All the wires, which are to be connected to the wiring terminal board 16) (fig. 1) shall pass through the fair leads 17)
(fig. 1) as per this scheme.
1- Pre-heating resistances three-phase supply: fair lead Pg 21
2- Motor three phase supply: fair lead Pg 16
3- Single phase supply and safety thermostat: fair lead Pg 13.5
4- Control thermostat: fair lead Pg 13.5
5- 2nd stage thermostat:fair lead Pg 13.5
6- Pre-sheared holes
Further prospective signals or controls can be connected to the burner wiring terminal board by removing the metal
weldnuts from the pre-sheared holes and inserting a commun fair lead for the passage and the clamping of the leads.
NOTES
- Carry out a safe earth connection.
- Check the stop of the burner, by opening the boiler thermostat and the burner lock-out, by disconnecting the lead
from the flame probe.
5896 7
CHOICE OF NOZZLES - OF THE PUMP PRESSURE
OF THE COMBUSTION HEAD ADJUSTMENT
Advised pressure
- Light oil: 20 bar
- Heavy oil: 25 bar
Rated deliveries of the nozzles are indicated on the above list and refer to a light oil having viscosity from 3 to 5° E at
50° C pre-heated at 100° C.
The effective delivery may vary of ± 5% against the rated one.
In case of requirement of intermediate values, the pump pressure or the nozzles match could be changed.
The pump is set by the factory at 20 bar.
Combustion head adjustment
Turnthescrew A till theset-point, detected from the diagram,
is on line with the washer B.
In case of very heavy oil it is advised to use high wear
resistance nozzles (for instance Monarch F 80 H0)
Nozzles delivery
Pump pressure Combustion head adjustment
Maximum output
Set-point
kg/h
Nozzle
GPH (45° - 60°) 20 bar
kg/h 25 bar
kg/h
3,50 + 3,50 42,00 47,40
4,00 + 4,00 48,00 54,20
4,50 + 4,50 54,00 61,00
5,00 + 5,00 60,00 67,80
5,50 + 5,50 66,10 74,50
6,00 + 6,00 72,10 81,40
6,50 + 6,50 78,10 88,10
7,00 + 7,00 84,10 95,00
7,50 + 7,50 90,10 101,60
8,00 + 8,00 96,10 -
8,50 + 8,50 100,00 -
A
B
Set-point 4
5896 8
ADJUSTMENT OF THE AIR DAMPER MOTOR
STOP - Blue lever
This lever leaves the factory vertically positioned and
corresponds to the complete closing of the air damper.
A partial opening of the air damper might be obtained by
moving leftwards this lever (+ on the label).
The new position of the air damper is detectable when
the burner is off. Do not overcome the position of the or-
ange lever for the 1st stage.
1st STAGE - Orange lever
The orange lever controls the air damper position for the first flame, it is adjustable both for opening and closing.
2nd STAGE - Red and black levers
The red lever controls the air damper position for the second flame, it is adjustable both for closing and opening.
The black lever controls the opening of the second oil valve and it must always anticipate - for a bit - the red lever,
but never the orange one.
BURNER START-UP PROGRAM
MOTOR LOCK-OUT
It is caused by the motor overload relay if overload occurs or no phase.
Reset: push the buttons 7) and 8) fig. 1.
Black lever
Red lever
Orange lever
Blue lever
-Closing
Opening +
Lock-out because
no ignition
Normal
Thermostat
Motor
Ignition transformer
1st flame valve
2 nd flame valve
Lock-out lamp
D2894
Este manual sirve para los siguientes modelos
2
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