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5.4 Dimensions
The boiler complies with the following di-
mensions:
A Flue gas exhaust / air suction (coaxial
Ø 100/60)
B Flue gas exhaust (Ø 80 twin pipe)
C Air suction (Ø 80 twin pipe)
D Boiler mounting bracket
E Area for positioning the electric connec-
tion channels
F MR - Heating delivery
G US - DHW output
H Gas
I
ES - DHW inlet
J RR - Heating return
C
B
95
35 165
85
255
D
I
G
H
F
83
6
5
5
2
6
4
6
5
400
Figure 5.2
INSTALLATION
C
237
AB
A
147
F-G
H-I-J
J
105
E
325
5.5 Fittings
The boiler uses the following fittings:
Cock
MR
US
Gas
G 3/4 MF
ES
RR
G1/2F 3 bar safety valve fitting
5.6 Boiler assembly
• Remove the protective caps from the boil-
er pipes.
• Hook the boiler onto the bracket.
• Screw the cock on the boiler.
• Fix or weld the flared stub pipes, respec-
tively Ø 14 mm for the DHW inlet and out-
let, and Ø 18 mm for the hydraulic system
return, delivery and gas.
Figure 5.3
• Install a shut-off cock on the DHW inlet.
The purpose of the cock is to hydraulically
isolate the unit, making normal mainte-
nance possible.
• If the hydraulic heating system is higher
than the boiler surface, cocks should be
installed in order to disconnect the system
for maintenance purposes.
• Block the pipes by placing 1/2" and 3/4"
gaskets between the boiler fittings.
• Carry out a leakage test for the gas supply
system.
Pipe Ø
Ø 16/18
Ø 12/14
Ø 16/18
Ø 12/14
Ø 16/18
- 29 -
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