82
with. the. system. cold,. must. be. between. 1
and 1.5 bar..
NB: The “T” versions the loading is done
by loading tap externally mounted by the
installer.
2.4.1 System draining (fig. 4)
To.drain.the.system,.turn.off.the.boiler.and.
use.the.discharge.valve.(7).
2.5
INSTALLATION OF
COAXIAL DUCT
ø 60/100 - ø 80/125 (fig. 6)
The. axial. suction. and. discharge. pipes. are.
supplied. in. a. special. kit. (that. can. be. pur-
chased. separately). along. with. assembly.
instructions.
The.diagrams.of.fig..6.illustrate.some.exam-
ples.of.different.types.of.discharge.modali-
ties.allowed.and.the.maximum.lengths.that.
can.be.reached.
2.6
INSTALLATION OF SEPARATE
DUCTS ø 80 - ø 60 (figg. 7-8)
The. kit. with. dedicated. pipes. enables. to.
separate.the.exhaust.fumes.pipes.from.the.
air.suction.pipes.(Fig..7):.
-.The. kit. with. dedicated. ø. 80. pipes,. code..
8089912,.includes.a.SUCTION DIAPHRAGM
THAT IS NOT.used.for.these.models..To.be.
able.to.use.the.air.tap,.cut.its.base.with.a.
tool.(A).and.assemble.it.(B).
-.The. kits. with. dedicated. ø. 60. pipes,. code.
8089913,. include. a. suction. collar. that.
replaces.the.boiler.collar.(C)..
It.is.now.possible.to.insert.an.expansion.or.
bend. in. polypropylene. without. gaskets. or.
sealant.
The maximum overall length, resulting
from the sum of all the suction and dischar-
ge pipes, is determined by the load losses
of the single connected accessories and
should not exceed 10 mm H
2
O (version 12) -
15 mm H
2
O (version 25-30-35) (ATTENTION:
the total length of each pipe should not
exceed 25 m, even if the total loss is below
the maximum applicable loss.)
See.Table 1-1/a.for.information.on.the.load.
losses.of.single.accessories.and.the.exam-
ple.of.Fig..8.for.information.on.how.to.calcu-
late.load.losses.
C33
6
5
3
2
C43
3
4
2
x
y
x.+.y.=..L.(m)
H.(m)
C13
1
2
1
L.(m)
2
Fig..6
IMPORTANT:
- The insertion of each additional 90°
bend with a diameter of 60/100 reduces
the available section by 1.5 meters.
- The insertion of each additional 90°
bend with a diameter of 80/125 reduces
the available section by 2 meters.
- Each additional 45° curve installed
reduces the available length by 1.0
metres.
- During assembly it is important to make
sure that the kit with axial pipes. (1) is
positioned horizontally.
NOTE
Before connecting accessories, it is
always advisable to lubricate the internal
part of the gaskets with silicon products.
Avoid using oils and greases.
Model
Length of pipe
Length of pipe
ø 60/100
ø 80/125
L
H
L
H
Min
Max
Min
Max
12 T.
6.m.
1.3.m.
8.m. 12.m. 1.2.m. 15.m
25 / 25 T.
6.m.
1.3.m.
8.m. 12.m. 1.2.m. 15.m
30 / 30 T.
5.m.
1.3.m.
7.m. 10.m. 1.2.m. 13.m
35 / 35 T.
4.m.
1.3.m.
6.m.
8.m.
1.2.m. 11.m
LIST OF ø 60/100 ACCESSORIES
1
.
Coaxial.duct.kit.code
.8096250
2a.
Extension.L..1000.code
.8096150
2b.
Extension
.L..500.code.8096151
3.
Vertical.extension
.L..140.
with.coupling.code
.8086950
4a.
Additional..90°.curve.code.
.8095850
4b.
Additional..45°.curve.code
..8095950
5. .
Tile.for.joint.code
.8091300
6. .
Terminal.for.roof.exit.L.
.1285.code.8091205
LIST OF ø 80/125 ACCESSORIES
1..
Coaxial.duct.kit.code
.8096253
2a.
Extension
.L..1000.code.8096171
2b.
Extension
.L..500.code.8096170
3.
Adapter.for
.ø.80/125.code.8093150
4a.
Additional..90°.curve.code
.8095870
4b.
Additional..45°.curve.code
.8095970
5.
Tile.for.joint.code
.8091300
6..
Terminal.for.roof.exit.L.
.1285.code.8091205
Summary of Contents for MURELLE EV HE 12 T
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