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Installation

4.5 Securing the burner to the boiler

Preparing the boiler

100

D7950

Boring the boiler plate

Make holes in the plate shutting off the combustion chamber, as

illustrated in Fig. 10. The position of the threaded holes can be

marked using the thermal insulation screen supplied with the burner.

mm A B C

RS 70/E MZ 185 275-325 M 12

RS 100/E MZ 185 275-325 M 12

RS 130/E MZ 195 325-368 M 16

RS 190/E 230 325-368 M 16

RS 250/E MZ 230 325-368 M 16

Fig. 11

Length of the blast tube

The length of the blast tube must be selected according to the

indications provided by the manufacturer of the boiler, and in

any case it must be greater than the thickness of the boiler door

complete with its refractory. The available lengths L are those

indicated in the table below.

For boilers with front flue passes 13) or flame inversion cham-

bers, a protection in refractory material 11) must be inserted

between the boiler refractory 12) and the blast tube 10). This

protection must not compromise the extraction of the blast tube.

See Fig. 11.

For boilers with a water-cooled frontal, a refractory lining is not

necessary 11)-12) unless expressly requested by the boiler

manufacturer.

Fig. 10

Blast tube 10) RS 70/E MZ RS 100/E MZ RS 130/E MZ RS 190/E RS 250/E MZ

• short 250 mm 250 mm 280 mm 372 mm 370 mm

• long 385 mm 385 mm 415 mm - 520 mm

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 55 56

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Riello RS 70/E MZ Bedienerhandbuch Seite 13