1
DESCRIPTION OF THE BOILER
1.1
INTRODUCTION
One of the features of
iron thermal group with the inte-
grated gas-oil burner is its func-
tional silence. The perfectly bal-
1.2
DI MEN SIO NS (fig. 1)
AQUA 25-35
550
AQUA INOX 25-35
550
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)
64
anced combustion and the high yield
allows it to economise considerably
the cast
the operating costs.
The instructions given in this man-
ual are provided to ensure proper
installation and perfect operation of
A
850
A
850
C
Recirculation G 3/4" (UNI-ISO 228/1)
S
Boiler drain
S1 System safety valve drain
S2 Boiler safety valve drain
Type C
Versione "BF"
215
70
S1
M
R
75
S2
U
C
E
=
=
Type C
Versione "BF"
69
231,5
S2
U
C
E
S1
M
R
S
the appliance and should be strictly
followed.
ATTENTION: The boilers can be
converted to type C requesting the
kit code 8101594.
Type B
Versione "OF"
215
70
S1
M
R
75
S2
U
C
E
=
=
Type B
Versione "OF"
231,5
69
S2
U
C
E
S1
M
R
S
AQUA 25
AQUA 35
A mm
75
175
Fig. 1