Riello GI/EMME 300 Guida rapida
2915142 (6)
Installation, use and maintenance instructions
Dual fuel Gas-Oil/Gas burner
MODEL TYPE
GI/EMME 300 495 T80
5142
1
TECHNICAL FEATURES
The burner conforms to IP 40 level of insulation as per CEI/70.1
Thermal power 107/175 ÷ 340 kW - 92.000/150.000 ÷ 292.000 kcal/h
Fuels Oil, max. viscosity at 20°C: 6mm
2
/s (1.5°E) natural gas with
Pci 8600 kcal/m
3
Lpg with Pci 22.200 kcal/m
3
Minimum gas pressure
(measured at the test-point) Maximum capacity requires 9.6 mbar with natural gas,
11.8 mbar with LPG. Combustion chamber at 0 mbar.
Maximum gas pressure 150 mbar
Electrical supply Single-phase 220 V +10% -15% 60 Hz
Fan-capacitor motor 1.85A / 220 V - 6.3 µF
Pump-capacitor motor1A / 220 V - 6.3 µF
Ignition transformer Primary: 1.8A / 220 V - Secondary: 30 mA / 1x8 kV
Pump Output 50 kg/h at 12 bar - max pressure 15 bar
Operation Two stage: gas or oil
Fig. 1
EQUIPMENT
Quantity Burner accessories
1 Gas-train’s gasket
8 Screws
1 Insulating screen
3 Seal
2 Oil hoses
4 Connectors
4 Gaskets
1 Lpg transf. kit
2 Oil nozzles
1 Flange
KEY TO LAY-OUT
1- Oil valve 1°
2- Oil valve 2°
3- Safety oil valve
4- Oil supply port
5- Oil return port
6- Pressure regulator at the pump
7- Air damper motor
8- Pressure gauge port (G 1/8)
9- Vacuum gauge port (G 1/8)
10 - Terminal board
11 - Fan motor capacitor
12 - Cable gland
13 - UV photocell
14 - Oil motor capacitor
15 - Oil-gas selector switch
16 - Control-box reset button
17 - Air pressure-switch
2 1 394 5 87 6 17 15 11 10 12
16
14
13
S7537
5142
2
DIMENSIONS
WORKING RANGE
PRESSURE IN THE COMBUSTION CHAMBER - 2
nd
STAGE OUTPUT
MINIMUM GAS PRESSURE - 2
nd
STAGE OUTPUT
Pressure
: measured at the test point with combustion chamber at 0 mbar.
Boiler front-plate
drilling
* Extension that you can obtain with special extended head (to be requested separately)
.
Burner
160
160
155 M10
410 610
185
*320
397
97
292
165
Rp 1 1/2
D1785
S7564
S7565
ø 140
Kcal/h
mbar
S7585
kW
Min output at 1st stage 107kW - 9Kg/h
Kcal/h
mbar
S7586
kW
Gas pressure test point
Natural gas
LPG S7536
5142
3
FIXING TO THE BOILER
GAS SUPPLY LINE
In order to devide the combustion head from the rest of the burner, you have to:
- remove the connection (1) from the two valves;
- remove the 4 screws (2 - 3);
- slide the burner body (A) along the rails (4);
- mount the group (B) to the boiler’s plate (6) interposing gasket (5).
Mount the group (A) to the boiler front.
Fit the nozzles and regulate the combustion head (as specified below).
S7539
654132
BA
{
{
1- Gas supply pipe 7- Min. gas pressure switch
2- Manual valve 8- Gas safety shut off valve
3- Isolator joint 9- 1° stage gas shut off valve
4- Filter 10 - 2° stage gas shut off valve
5- Pressure governor 11 - Burner
6- Pressure test-point
S7566
6986
7
54
6
32 1
11
10
5142
4
OIL SUPPLY
S7542
S7541
Please note:
all oil lines must be airtight.
We suggest copper-piping. Level as the suc-
tion pipe, then a none return valve is not
required and the section-pipe can be discon-
nected without causing any problems.
H= Margin; L= Inlet-pipe’s length, including the vertical line.
The copper pipes with diameter 8 and 10, shown in the schemes, can be replaced with 1/4 and 3/8
steel pipes, commercial gas without welding.
HLm
m Øi 8 Øi 10
0.5 5 10
11020
1.5 15 30
22040
HLm
m Øi 8 Øi 10
03270
0.5 28 62
12455
1.5 20 48
21640
3725
3.5 – 10
H
max. 4m
H
max. 4m
H
5142
5
BURNER ELECTRICAL WIRING
(carried out in the factory)
KEY TO LAY-OUT
C: Pump motor capacitor
C1: Fan motor capacitor
CO:Selector switch
MA:Auxiliary terminal strip
MB:Burner terminal strip
MP:Pump motor
MV:Fan motor
PA: Air pressure switch
SM:Servo-motor
TA: Ignition transformer
TB: Burner earth
UV: Probe U.V.
V1: 1° stage valve
V2: 2° stage valve
VS: Oil safety valve
SELECTOR SWITCH
OIL O GAS
3 - 4
5 - 6
7 - 8
9 - 10
11 - 12
13 - 14
15 - 16
S7587
S7562
5142
6
ELECTRICAL CONNECTIONS TO THE WIRING TERMINAL BLOCK
(to be carried out by the installer)
KEY TO LAYOUT
MB - Burner terminal strip V1 - 1° stage gas shut off valve
TS - Safety remote control system V2 - 2° stage gas shut off valve
TL - Limit control system VS - Gas safety shut off valve
TR - 2° stage remote control system S-Remote lock signal
PG - Min. gas pressure switch
NOTICE
- The electric wiring carried out by the installer must be in compliance with the rules in force in the
country.
- Leads minimal section 1.5 mm2.
- Burners with non-stop operation: for safety reasons, this type of burner must be stopped every 24
hours of operation, by means of an hours-counter to be connected in series with the adjustment
devices.
- The flame modulation in obtainable trought the 2° stage remote control system (TR).
Connected to the terminals 6-7.
S7568
5142 7
FIXING OF THE ELECTRICAL WIRES
All the electrical wires, which are to be connected into the terminal rail 10 (fig. 1) should pass through
the cable glands hubes 12 (fig. 1), accordingly the scheme below.
1- Single phase supply : gland Pg 13.5
2- Regulation thermostat : gland Pg 13.5
3- Safety thermostat : gland Pg 13.5
4- GAS TRAIN : gland Pg 13.5 - for sheath ø 13
5- 2° stage thermostat : gland Pg 13.5
6- Precut hole
Further starts or controls can be connected into the terminal rail of the burner, taking out the metal
buttons from the precut holes and inserting a cable gland for the passage and extra cables.
To guarantee the IP 40 protection level, in accordance to CEI 70.1, seal the glands that are not used.
NOTES
- Do not exchange “Neutral” with “Phase” (avoid a plug/socket connection).
- Make a good earth connection.
Verify that the burner will lockout by firing the burner and obscuring the UV cell.
ATTENTION
When you close the burner on the two guide rail, all the slack should be pulled out the high voltage-
cable.
This burner is in accordance to the CEE law n.76/889, D.M. 9/10/1980, for protection against radio-
noises.
S7569
5142 8
COMBUSTION HEAD ADJUSTMENT
Adjustments can be made to the burner, when it is still open for installation (see page 3, fixing to
the boiler).
SETTING OF GAS DISTRIBUTOR
The burner leaves the factory setted for burning natural
gas (see the drawing on the right):
-Each hole (F) and each pipe (T) completely opened.
-For operation up to 200.000 kcal/h, close the NR. 1-2-
3 and 4 holes (F) by means of 4 nozzles supplied to-
gether with the lpg - kit.
To burn LPG fit the kit as detailed below:
-Fit 6 nozzles with ø 5 mm on outlets to holes (F).
Nozzle
1° 2° 1°+2°
kg/h
bar GPH kg/h GPH kg/h
10
12 2.25
2.25 8.7
9.6 1.75
1.75 6.7
7.4 15.4
17.0
10
12 2.25
2.25 8.7
9.6 2.00
2.00 7.7
8.5 16.4
18.1
10
12 2.25
2.25 8.7
9.6 2.25
2.25 8.7
9.6 17.4
19.2
10
12 2.50
2.50 9.6
10.6 2.50
2.50 9.6
10.6 19.2
21.2
10
12 3.00
3.00 11.6
12.8 3.00
3.00 11.6
12.8 23.2
25.6
10
12 3.50
3.50 13.5
14.9 3.50
3.50 13.5
14.9 27.0
29.8
10 4.00 15.4 4.00 15.4 30.8
Pump
pressure
NOZZLE’S CHOICE
Spray angle:
- usually, 60°
- for narrow combustion chambers: 45°
S7546
S7547
Position of the ignition electrodes
4 mm
4 mm
FT
1° stage nozzle 2° stage nozzle
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1
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1
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