Riello RS 28, Installation, Use And Maintenance Instructions

Page: 26 / 48

20144599 24 GB
Start-up, calibration and operation of the burner
6.1 Notes on safety for the first start-up
6.2 Adjustments prior to ignition
Combustion head adjustment is already described on page 18.
In addition, the following adjustments must also be made:

open the manual valves upstream of the gas train.

Adjust the minimum gas pressure switch to the start of the
scale (Fig. 28).

Adjust the air pressure switch to the start of the scale
(Fig. 27).

Purge the air from the gas line. We recommend using a
plastic tube routed outside the building and to purge air until
gas is smelt.

Fit a U-type pressure gauge (Fig. 24) to the gas pressure
test point on the pipe coupling.

Used to approximately calculate burner output in the 2nd
stage using the Tab. F on page 20.

Connect two lamps or testers in parallel to the two gas line
solenoid valves VR and VS in order to check the exact
moment at which voltage is supplied. This operation is not
required if each of the two solenoid valves is equipped with a
pilot light that signals voltage passing through.
6.3 Burner start-up
Close the remote controls and turn:

switch 1)(Fig. 25) in “ BURNER ON ” position;

switch 2)(Fig. 25) in “ 1st STAGE ” position.
As soon as the burner starts, check that the lamps or the testers
connected to the solenoid valves or the warning lights on the
solenoid valves indicate no voltage presence. If voltage is
present, stop the burner
immediately and check the electrical
wiring.
6 Start-up, calibration and operation of the burner
ATTENTION
The first start-up of the burner must be carried out
by qualified personnel, as indicated in this manual
and in compliance with the standards and
regulations of the laws in force.
ATTENTION
Check the correct working of the adjustment,
command and safety devices.
ATTENTION
Before starting up the burner, refer to section
"Safety test - with no gas supply” on page 31.
CAUTION
Before starting up the burner, it is good practice to
adjust the gas train so that ignition takes place in
conditions of maximum safety, i.e. with gas
delivery at the minimum.
Fig. 24
D514
Fig. 25
D469
1 2
Burner OFF
Burner ON
1st stage
2nd stage