Sime MURELLE EV 25/55 BF, Manual

Page: 80 / 108

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To prevent malfunctioning of the valve, or in
certain cases even to cut out the safety
device with which the valve is equipped,
install an adequate filter on the gas pipe.
2.5 SYSTEM FILLING
Filling of the boiler and the system is done
by the charge load faucet (fig. 24/a). The
charge pressure, with the system cold,
must be between
1 and 1.5 bar . Filling must
be done slowly so as to allow any air bubbles
to be bled off through the air valves.
2.5.1 Emptying the system (fig. 5/a)
To drain the system, turn off the boiler and
to loosen with one key from 13 the appro-
priate download of some turns (fig. 5/a).
2.6 FLUES/CHIMNEYS
A chimney or flue for the evacuation of the
combustion products into the atmosphere
must correspond to the requisites prescri-
bed by the laws in force. In particular, the
specific prescriptions of law relative to boi-
lers with natural draught in collective pipes
(type B) and those for boilers with forced
draught (type C) must be respected.
2.6.1 Ducting of
existing chimneys
To recover or duct existing chimneys, ducts
declared suitable for the purpose by the
manufacturer must be used, and the instal-
lation and use modalities indicated by the
said manufacturer must also be followed
as well as the prescriptions of Standard
UNI 10845.
C12
C32
C42
3
1
2
7
6
4
3
2
8
x
y
max 5,0 m per vers. “20”
max 3,5 m per vers. "25"
max 3,0 m per vers. "30-35"
x + y = max 5,0 m per vers. "20"
x + y = max 3,5 m per vers. "25"
x + y = max 3,0 m per vers. "30-35"
min 1
,3 m - max 5 m
KEY
1
Coaxial flue kit L. 810 code 8084811
2 a Extension L. 1000 code 8096103
2 b Extension L. 500 code 8096102
3
Vertical extension L. 200 code 8086908
4 Additional 90° curve code 8095801
6 Articulated tile code 8091300
7 Roof outlet terminal L. 1284 code 8091200
8 Vertical condensation collector L. 200 code 8092803
Fig. 6
IMPORTANT:
– Each additional 90° cur ve
installed reduces the available
length by 1.0 metres.
– Each additional 45° cur ve
installed reduces the available
length by 0.50 metres.
- The insertion of the condensa-
tion collector (8) is obligatory
for vertical stretches of more
than 1.3 metres.
Fig. 6/a
Fig. 5/a
x + y = max 3,0 m “25/55”
x + y = max 3,5 m “30/55”
max 3,0 m “25/55”
max 3,5 m “30/55”
For discharge types C12-C42, use the diaphragms ø 87.5 only when the length
of the coaxial duct is less than 1 metres.
For discharge types C32, use the following diaphragm ø 87.5 according to the
length of the duct and without additional curves:
Installations with vetrical Installations with vertical condensation
extension L. 200 code 8086908 collector code 8092803
Diaphragm Without Diaphragm Without
ø 87,5 diaphragm ø 87,5 diaphragm
L min = 1,3 m L min = 1,3 m L min = 1,3 m L min = 1,3 m
L max = 3,5 m L max = 5 m L max = 2,5 m L max = 5 m