Sime MURELLE HE 50 R Manual De Usario página 82

2.5 EXHAUST
The boiler is supplied with a 80 mm gasket,
which must be fitted over the exhaust termi-
nal prior to the flue being installed (11 fig. 6 -
fig. 7 - fig. 8).
2.5. 1 Type B (fig. 6)
If the inlet is not connected, the boiler should
be regarded a Type B device. When instal-
ling the boiler in locations where it needs to
be protected from water, replace the intake
terminal inserted in the flange with terminal
code 8089510.
For information on how to configure the boi-
ler in this mode see figure 6.
The maximum overall length of ø 80 exhau-
st flues is determined by the load losses of
the single accessories installed and should
not exceed 16 mmH O.
2
The exhaust pipe can be connected to exi-
sting chimneys.
When the boiler works at low temperature
is possible to use normal chimneys at the
Type B
82
following conditions:
– The chimney must not be used by other
boilers.
– The inside of the chimney must be pro-
tected from direct contact with the boi-
ler condensation. Combustion products
must be conveyed with a flexible piping
or rigid plastic pipes with a diameter of
about 100-150 mm providing so to the
condensation siphoned drainage at the
end of the pipe. The useful height of the
siphon must be at least 150 mm.
2.5.2 Type C (fig. 7 - fig. 8)
The boiler becomes a Type C device when
the intake terminal is removed from the
flange and the intake is connected to sepa-
rate exhaust ducts (fig. 7) or with coaxial
exhaust (fig. 8).
2.5.3 Maximum usable length
for separate ø 80 flues
The maximum overall length of ø 80 suc-
tion and exhaust flues is determined by
ø 80 ACCESSORY LOAD LOSS TABLE
Accessory ø 80
90° MF polypropylene curve
45° MF polypropylene curve
Polypropylene extension L. 1000
Polypropylene extension L. 500
Roof exit terminal L. 1381
Exhaust terminal
Polypropylene extension L. 250 with socket
WARNING:
Before installing accessories, lubricate the internal part of
gaskets with silicon-based products. Avoid using oils and
greases.
KEY
1 90° MF polypropylene curve (6 pcs.) code 8077450
2 a Polypropylene extension L. 1000 (6 pcs.) code 8077351
2 b Polypropylene extension L. 500 (6 pcs.) code. 8077350
3 Hinged tile code 8091300
4 Roof terminal kit L. 1381 code 8091204
5 Polypropylene extension L. 250 with socket code 6296513
6 45° MF polypropylene curve (6 pcs.) code 8077451
7 Exhaust terminal code 8089501
8 Internal-external ring nut kit code 8091500
11 Rubber gasket ø 80 (supplied as standard)
the load losses of the single accessories
ins t alled and should no t exceed 16
mmH O.
2
When the segment of piping is between 11-
16 mm H O it is necessary to check and, if
2
needed, correct the maximum and mini-
mum pressure adjustment of the gas valve
as specified in point 4.2.2.
2.5.4 Maximum usable
length for coaxial
ø 80/125 flues
In installations with ø 80/125 coaxial
exhaust, the maximum horizontal length
including the 90° cur ve, should not
exceed 5 m.
For roof exits it should not exceed 8 m
along vertical.
When the segment of pipe is between 2-5
m horizontal / 4-8 m vertical, it is neces-
sary to check and, if needed, correct the
maximum and minimum pressure adjust-
ment of the gas valve as specified in point
4.2.2.
Load loss
(mm H O)
2
0,80
0,40
0,40
0,20
1,30
1,50
0, 1 0
Fig. 6