1.1
INTRODUCTION
The new
“AR - ARB freestanding”
series of cast iron boilers has been
designed in compliance with the
European Directive CEE 92/42. They
use light oil and have a perfectly bal-
anced combustion with a very high
thermal efficiency for economical per-
formance. The
“ARB”
boiler series is
designed for heating and the produc-
tion of domestic hot water, while the
“AR”
series is designed for central
heating purposes only.
The components for
“AR”
installation
are supplied in three separate pack-
ages: boiler body, casing with enclosed
documents and control panel.
20
1
BOILER DESCRIPTION
400
P
105
105
710
630
11
0
ø1
40
ø1
30
925
235
S
R
M
460
35
715
125
125
680
13
7
0
ø1
40
ø1
30
660
390
230
70
555
10
7
5
11
5
5
R
M1
M
S
U
C
E
1.2
DIMENSIONAL DETAILS
1.2.1
“AR” model
1.2.2
“ARB” model
Fig. 1
AR3
AR4
AR5
P
Depth
375
475
575
M C.H. flow
1
1/
2
”
1
1/
2
”
1
1/
2
”
R C.H. return
1
1/
2
”
1
1/
2
”
1
1/
2
””
S
Boiler filling-drain
1/2”
1/2”
1/2”
ARB4
ARB5
M1 Zone system flow
1
1/
4
”
1
1/
4
”
M C.H. flow
1”
1”
R C.H. return
1”
1”
S
Boiler filling-drain
1/2”
1/2”
E
D.C.W. inlet
3/4”
3/4”
C Recirculation
3/4”
3/4”
U
D.H.W. outlet
3/4”
3/4”
Fig. 1/a
Summary of Contents for AR
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