Sime AR3 - Boiler Description; Introduction; Dimensional Details

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
110
ø140
ø130
925
235
S
R
M
460
35
715
12 5
12 5
680
137 0
ø140
ø130
660
390
230
70
555
1075
115 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