Start-Up, Calibration And Operation Of The Burner; Notes On Safety For The First Start-Up; Adjustments Prior To Ignition; Fan Adjustment - Riello 20148874 Installation, Use And Maintenance Instructions

7

Start-up, calibration and operation of the burner

7.1

Notes on safety for the first start-up

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 regula-
tions of the laws in force.
WARNING
Check the correct working of the adjustment, com-
mand and safety devices.
WARNING
7.2

Adjustments prior to ignition

The following adjustments must be carried out:
 open the manual valves upline of the gas train;
 bleed the air from the gas pipes using the screw on the
socket (Fig. 22 on page 24).
 Adjust the minimum gas pressure switch to the start of the
scale.
NOTE:
Make sure that the cover has been correctly installed on the
burner (the presence or otherwise of the cover considerably
affects the depression values measured at the pressure test
point downstream of the valve). (See Fig. 22 on page 24)
To access the display with cover installed, unscrew the screws 1)
(Fig. 163) and remove the glass 2).
Key (Fig. 163)
1 Screws
2 Glass
3 Pilot valve encompassing
4 Safety valves
5 Pilot downstream pressure
7.3

Fan adjustment

Modulation is based on variable-speed technology.
The combustion air flow rate can be regulated by varying the mo-
tor speed (rpm).
The proportioning gas train delivers the right amount of fuel, de-
pending on the pressure detected in the purging circuit.
So the flow rate supplied is regulated by changing the rotation
speed of the motor.
The motor speed can be regulated through an adjustment of the
control box.
The adjustments take place on the AZL display on the burner and
are carried out using the following parameters:
START ignition point
MIN minimum point
MAX maximum point
NOTE:
The adjustment of the fan (to establish the maximum, mini-
mum and ignition outputs) can occur independently both of
Start-up, calibration and operation of the burner
(P0) Parameter P 403.00
(P1) Parameter P 403.01
(P2) Parameter P 403.02
Refer to paragraph "Safety test - with gas ball
valve closed" on page 56 before the first start-
up.
WARNING
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the AZL display and the keys and display on board the ma-
chine. Below is a description of the procedure to carry out
using the AZL display since it allows you to work with the
cover installed (final configuration). Points P0, P1 and P2
can be modified within the range defined by the limits set in
the parameters 516, 517 and 518 respectively.
49 GB
2
1
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Fig. 163
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