1
BOILER DESCRIPTION
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
1.2
DIMENSIONAL DETAILS
1.2. 1
"AR" model
1.2.2 "ARB" model
20
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
AR3
P
Depth
375
M C.H. flow
1
1 /
2
R C.H. return
1
1 /
2
S
Boiler filling-drain
1/2"
M1 Zone system flow
M C.H. flow
R C.H. return
S
Boiler filling-drain
E
D.C.W. inlet
C
Recirculation
U D.H.W. outlet
"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.
AR4
AR5
475
575
"
1
1 /
"
1
1 /
"
2
2
"
1
1 /
" 1
1 /
""
2
2
1/2"
1/2"
ARB4
ARB5
1
1 /
"
1
1 /
"
4
4
1"
1"
1"
1"
1/2"
1/2"
3/4"
3/4"
3/4"
3/4"
3/4"
3/4"
Fig. 1
Fig. 1/a