1
DESCRIPTION OF THE BOILER
1.1
INTRODUCTION
One. of. the. features. of. . the. cast. iron.
thermal. group. with. the. integrated.
gas-oil.burner.is.its.functional.silence.. .
The. perfectly. balanced. combustion.
and. the. high. yield. allows. it. to. econo-
mise.considerably.the.operating.costs..
1.2
DIMENSIONS (fig. 1)
"SOLO /DUETTO 25-35" version (type B)
"SOLO/DUETTO 25-35" version (type C)
P.
Depth.
M. C.H..flow.
G.1".(UNI.ISO.228/1).
R.. C.H..return.
G.1".(UNI.ISO.228/1).
C1. System.load.
G.1/2".(UNI.ISO.228/1).
E.
D.H.W..inlet.
U.
D.H.W..outlet.
S.
Boiler.drain.
G.1/2".(UNI.ISO.228/1).
58
The. instructions. relative. to. the. fol-
lowing. models. are. indicated. in. the.
present.manual:
–. "SOLO 25-35 ErP".for.heating.only
–. "DUETTO 25-35 ErP". for. heating.
and. hot. water. production. with. in-
stant.tank
The. instructions. given. in. this. manual.
SOLO 25
SOLO 35
750.
850.
G.1".(UNI.ISO.228/1).
G.1".(UNI.ISO.228/1).
G.1/2".(UNI.ISO.228/1).
–.
–.
–.
–.
G.1/2".(UNI.ISO.228/1).
are. provided. to. ensure. proper. instal-
lation. and. perfect. operation. of. the.
appliance.and.should.be.strictly.follo-
wed.
WARNING: The boiler can be con-
verted into type C requesting the kit
code 8101594.
DUETTO 25
750.
G.1".(UNI.ISO.228/1).
G.1".(UNI.ISO.228/1)
G.1".(UNI.ISO.228/1).
G.1".(UNI.ISO.228/1)
–.
G.1/2".(UNI.ISO.228/1).
G.1/2".(UNI.ISO.228/1)
G.1/2".(UNI.ISO.228/1).
G.1/2".(UNI.ISO.228/1)
G.1/2".(UNI.ISO.228/1).
G.1/2".(UNI.ISO.228/1)
DUETTO 35
850.
--
Fig..1