Max. Dimensions - Approximate Measurements; Standard Equipment; Firing Rates; Test Boiler - Riello RL 190 Two-Stage Operation

4.2.2 Max. dimensions -
approximate measurements
D1217
mm A
RL 190 756
4.2.3

Standard equipment

2 - Flexible hoses (L = 1350 mm)
2 - Gaskets for flexible hoses
2 - Nipples for flexible hoses
1 - Thermal insulation screen
4.3

Firing rates

D1246
The RL 190 Model burners can work in two ways: one-stage and
two-stage.
1st stage DELIVERY must be selected within area A of the ad-
jacent diagrams.
2nd stage DELIVERY must be selected within area B. This area
provides the maximum delivery of the burner in relation to the
pressure in the combustion chamber.
20044168
Technical description of the burner
Fig. 2
B C D
366 390 555
Fig. 3
8
The maximum dimensions of the burner are given in (Fig. 2).
Bear in mind that inspection of the combustion head requires the
burner to be opened and the rear part drawn back on the guides.
The dimensions of the open burner are indicated by position I.
E F
712 370
4 - Extensions 13)(Fig. 1) for slide bars 12)(Fig. 1)
4 - Screws to secure the burner flange to the boiler: M 16 x 40
1 - Instruction booklet
1 - Spare parts list
The FIRING RATE area values have been ob-
tained considering a surrounding temperature of
20 °C, and an atmospheric pressure of 1000 mbar
(approx. 100 m above sea level) and with the
WARNING
combustion head adjusted as shown on pag. 12.
4.3.1

Test boiler

The firing rates were set in relation to special test boilers in ac-
cordance with the methods defined in EN 267 standards.
Fig. 4 indicates the diameter and length of the test combustion
chamber.
Example:
delivery 65 kg/hour:
diameter = 60 cm; length = 2 m.
Whenever the burner is operated in a much smaller commercial-
ly-available combustion chamber, a preliminary test should be
performed.
GB
G H
222 430 1166
D688
I
Fig. 4