1.1
INTRODUCTION
One. of. the. features. of. . the. cast.
iron. thermal. group. with. the. inte-
grated. gas-oil. burner. is. its. func-
tional. silence.. The. perfectly. bal-
anced.combustion.and.the.high.yield.
allows.it.to.economise.considerably.
the.operating.costs..
The. instructions. given. in. this. man-
ual. are. provided. to. ensure. proper.
installation.and.perfect.operation.of.
the.appliance.and.should.be.strictly.
followed.
ATTENTION: The boilers can be
converted to type C requesting the
kit code 8101594.
64
1 DESCRIPTION OF THE BOILER
1.2
DI MEN SIO NS (fig. 1)
550
1430
A
850
70
215
1230
340
825
515
125
200
90
1075
1230
825
515
125
200
90
1075
215
70
340
U
C
E
U
C
E
75
75
S1
M
R
S2
S1
M
R
S2
ø8
0/1
25
ø1
30
Versione “BF”
Versione “OF”
=
=
=
=
Fig..1
KEY
M. C.H..flow.G.1”.(UNI-ISO.228/1)
R.. C.H..return..G.1”.(UNI-ISO.228/1)
U. D.H.W..outlet.G.3/4”.(UNI-ISO.228/1)
E. D.H.W..inlet.G.3/4”.(UNI-ISO.228/1)
C. Recirculation..G.3/4”.(UNI-ISO.228/1)
S. Boiler.drain
S1. System.safety.valve.drain
S2. Boiler.safety.valve.drain
550
ø8
0/
12
5
ø1
30
Versione “BF”
Versione “OF”
850
A
1430
69
231,5
65
65
879
288
239
145
165
145
165
65
65
879
239
288
512,5
512,5
69
231,5
S2
U
C
E
S1
M
R
S
S2
U
C
E
S1
M
R
S
AQUA 25
AQUA 35
A. mm.
75.
175
AQUA 25-35
AQUA INOX 25-35
Type C
Type B
Type C
Type B
