Riello GAS 6 P/M Guida rapida
2915244 (3) - 09/2012
Installation, use and maintenance instructions
Forced draught gas burner
MODEL TYPE
GAS 6 P/M 536 T80
5244
1
ELECTRICAL DATA
Motor IE1
Motor IE2
Thermal power - Output 300 ÷ 1050 kW - 258.000 ÷ 903.000 kcal/h
Operation - two stages progressive
- modulating (kit with controller available upon request)
Fuel natural gas Pci 8 - 10 kWh/m3= 7000 - 8600 kcal/m3
Minimum gas pressure for maximum output 12.3 mbar are needed measured at the cou-
pling with nil pressure in the combustion chamber and gas with cal-
orific value of 8600 kcal/m3
Maximum gas pressure 150 mbar
Electrical supply 3N ~ 380V
60 Hz
Fan motor rpm
V
kW
A
3350
220/380
1.5
6.6 - 3.8
Ignition transformer V1 - V2
I1 - I2
220 V - 1 x 8 kV
1.8 A - 30 mA
Electrical power consumption kW max 1.7
Electrical supply 3N ~ 380V
60 Hz
Fan motor rpm
V
kW
A
3500
220/380
1.5
5.5 - 3.2
Ignition transformer V1 - V2
I1 - I2
220 V - 1 x 8 kV
1.8 A - 30 mA
Electrical power consumption kW max 1.7
5244
2
1- Servomotor controlling air and gas
2- Adjustment cam
3- Power controller (for modulating to be required
separately)
4- Control box reset button
5- Servomotor connection
6- Fair leads
7- Wiring terminal block
8- Reset push-button of the motor over load relay
9- Air pressure switch
10 - Gas pressure test-point
DIMENSIONS
* Length available with special blast tube to be separately required.
QUANTITY ACCESSORIES
1 Flange
1 Gasket
8Screws
1 Flange gasket
Fig. 1
5244
3
COMBUSTION CHAMBER PRESSURE - MAXIMUM OUTPUT
Minimum output: 300 kW - 258.000 kcal/h
MINIMUM GAS PRESSURE - OUTPUT
Pressure: detected at the pressure test-point 10) (fig. 1) with oil mbar into the combustion chamber.
Should the combustion chamber be pressurized, the pressure necessary will be that of the graph plus
the pressurization value.
Example: to obtain 800 kW it is necessary a gas pressure of 11 mbar and the combustion head set as indicated at
page 8.
If the combustion chamber is pressurized at 2 mbar, the pressure detected at the test-point 10) is:
11+2=13 mbar.
If this value is too high, for very low gas pipework pressures, the gas gear 6) (page 8) could be more
open. Do not decrease the pressure at the coupling under the values shown in the diagram.
Output: the maximum value is obtainable with gas Pci 8600 kcal/m3.
5244
4
MOUNTING TO THE BOILER
Separately the blast tube from the burner body by
loosening the screws 7) and 3), fix the blast tube to
the boiler front plate 5) using the gasket 6) provided.
Insert the burner on the holding bars 4) and fasten
the screws 7) and 3).
The combustion head adjustment should be carried
out as follows: Loosen the screws 2) UNHOOK THE
TENSION ROD OF THE AIR DAMPER 1) remove
the connecting lead of the servomotor, withdraw the
group A) from the group B).
After the setting, re-assemble and verify that the
tension rod of the air damper was locked.
GAS SUPPLY
1- Gas pipe line 6- Minimal gas pressure switch
2- Cock valve 7- Safety valve
3- Filter 8- Adjustment valve
4- Pressure stabilizer 9- Adjusting throttle valve
5- Pressure test-point 10- Burner
11- Gas Leak control device
5244
5
BURNER ELECTRICAL WIRING
(carried out y the factory)
D3377
5244
6
ELECTRICAL CONNECTIONS TO THE WIRING TERMINAL BLOCK
(to be carried out by the installer)
NOTE
- The electrical wiring carried out by the installer must be in compliance with the rules in force in the Country.
- Leads minimal section 1 mm2.
- Adjustment for the motor thermal relay:
- at the beginning of the scale for 380V
- at the end of the scale for 220V
- Burners with non-stop operation. For safety reasons, this type of burner must be stopped every 24 hours of oper-
ation, by means of an hours-counter to be connected in series with the adjustment devices.
RWF 40 CONNECTION
D3378
D3379
5244
7
FIXING OF THE ELECTRICAL WIRES
All the electrical wires, which are to be connected to the terminal block 7) (fig. 1) shall pass through the fair leads 6)
(fig. 1) as per this scheme.
1- Three phase supply: fair lead Pg 21
2- Single phase supply: fair lead Pg 13.5
3- Adjustment thermostat: fair lead Pg 13.5
4- Safety thermostat: fair lead Pg 13.5
5- Gas train:fair lead Pg 13.5, sheath ø 13
6- 2nd stage thermostat:fair lead Pg 13.5
(probe for modulating version)
7- Pre-sheared hole: fair lead Pg 13.5 (for power controller - modulating version)
8- Pre-sheared holeg
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
- Do not exchange the neutral wire with the phase (avoid the plug-pin connection).
- 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.
WARNING
When closing the burner on its slide-bars, pull towards the outside the high voltage cable and the cable of the flame
detection probe, till to little tension.
5244
8
START-UP
Air-purge: Loosen the screws placed on the minimal gas pressure switch mounted on the gas train.
AIR PRESSURE SWITCH
The air pressure switch setting shall be carried out after having set
all other adjustments of the burner and the air pressure switch shall
be at its lowest set-point.
When the burner is operating, increase the adjustment pressure by
turning - slowly - clockwise the knob till reaching the burner lock-out.
There after, turn the knob anticlockwise for 1 mbar and repeat the
burner start-up for checking the regularity: if lock-out intervenes turn
the knob anticlockwise for 0.5 mbar.
CAUTION
Do not turn the ionization probe, maintain the drawing position; should it be close to the ignition electrode, damage
may occur to the control box amplifier.
Indice
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