Riello BS1F Instrucciones De Instalación, Uso Y Mantenimiento página 11

4.6 Maximum dimensions
The maximum dimensions of the flange and burner are given in
Fig. 1.
Model A
BS1F 234
BS2F 255
BS3F 300
BS4F 300
4.7 Preparing the boiler
4.7.1 Boring the boiler plate
Pierce the closing plate of the combustion chamber, as in Fig. 2.
The position of the threaded holes can be marked using the ther-
mal insulation screen supplied with the burner.
Model A B
BS1F 192 66
BS2F 192 66
BS3F 216 76.5
BS4F 218 80.5
Technical description of the burner
F
G H
I
B C D
254 295 122.0 112.0
280 325 125.5 125.5
345 391 150.0 150.0
345 392 150.0 150.0
C D E
167 140 170
167 140 170
201 160 190
203 170 200
D
E F G
230 276
346
238 252
352
262 280
390
278 301
446
F
89
106
129
137
Tab. G
20098188
9
GB
A
E
S9654
H I
116 70
174
114 100
174
128 110
196
168 145
216
Fig. 1
ø L M
89 210
106 230
129 285
137 286
Tab. F
Fig. 2
20140262