Riello RLS 28, Installation, Use And Maintenance Instructions, Page: 20 / 64

20165123 18 GB
Installation
5.6 Access to head internal part
In order to reach inside the combustion head (Fig. 12) proceed as
follows:

remove the screw 1) and the internal part 2).
5.6.1 Combustion head pre-calibration
For the RLS 50 model, check whether the maximum output of the
burner in the 2nd stage is within area A or in area B of the firing
rate. See "Firing rates” on page 10.
–
If it is in area A, no intervention is required.
– However, if it is in area B:

Loosen the screws 1)(Fig. 13) and disassemble the blast
tube 2);

Move the fixing point of the rod 3)(Fig. 13) from position A to
position B , thereby drawing back the shutter 4);

Reassemble the blast tube 2)(Fig. 13) and the screws 1)
Once this operation (if necessary) has been carried out, fix the
flange 9)(Fig. 11 on page 17) to the boiler plate, interposing the
insulating gasket 6)(Fig. 11 on page 17) supplied.
Use the 4 screws supplied with the unit, after protecting the
thread with anti-locking product.
The seal between burner and boiler must be airtight.
5.7 Electrode positions
Be careful as some drops of fuel may leak out
during this phase.
Fig. 12
D1122
Fig. 13
D457
ATTENTION
Check that the electrodes are positioned
correctly, as in Fig. 14, complying with the
dimensions indicated.
Fig. 14
D1124