23
TYPICAL SYSTEM SCHEMATIC
"OPEN" CONFIGURATION OF THE TYPE B BOILER
The equipment is supplied as standard in type B configura-
tion, hence prepared to suck air directly in the installation room
through the venting openings, that must be carried out in com-
pliance with the Technical Standards.
It can become a type C equipment with the use of specific ac-
cessories. In this configuration the equipment will suck air di-
rectly from the outside with the possibility to have coaxial or
split pipes.
Description
INSIEME EVO COND
25 B/130 LN
35 B/130 LN
L
MAX
10 (*)
20 (*)
m
(*)
This length must be reduced by 1 metre for every 90° curve
and by 0.5 metres for every 45° curve.
BOILER CONFIGURATIONS C “SEALED”
If comburent air is drawn from outdoors, the appliances are type
C "sealed" and the boiler room does not require ventilation.
Twin pipes (Ø 80 air / Ø 80 flue gases)
For these configurations, the type C transformation accessory
must be installed (following the instructions supplied with the
accessory itself).
Split ducts can be oriented in the direction most suitable to the
room needs, respecting the specified maximum lengths.
1 m
T
G
L
L
A
C
A
Type C transformation accessory
C
Condensation exhaust system (not supplied)
G
Protective grille (not supplied)
T
Terminal
L
Maximum straight length
(This length must be reduced by 1 metre for every 90°
curve and by 0.5 metres for every 45° curve.)
Description
INSIEME EVO COND
25 B/130 LN
35 B/130 LN
L
MAX
Flue gas vent
and comburent
air intake
20 (*)
30 (*)
m
L
MAX
Air inlet
10 (*)
15 (*)
m
(*)
This length must be reduced by 1 metre for every 90° curve
and by 0.5 metres for every 45° curve.
1m
T
T
L
L
A
C
A
Type C transformation accessory
C
Condensation exhaust system (not supplied)
T
Terminal
L
Maximum straight length
(This length must be reduced by 1 metre for every 90°
curve and by 0.5 metres for every 45° curve.)
Description
INSIEME EVO COND
25 B/130 LN
35 B/130 LN
L
MAX
Flue gas vent
and comburent
air intake
20 (*)
30 (*)
m
L
MAX
Air inlet
10 (*)
15 (*)
m
(*)
This length must be reduced by 1 metre for every 90° curve
and by 0.5 metres for every 45° curve.
9
Use of flues longer than the specified maximum leads to a
loss of heat output from the boiler.
9
Never obstruct or choke the comburent air intake pipe.
