Climit GG BT 25 OF Manual De Instrucciones página 72

Filling must be done slowly so as to allow
any air bubbles to be bled off through the
air valves .
Should the pressure have risen well above
the limit expected, discharge the over pres-
sure by opening the pressure-relief valve .
2 .5 .1 Emptying the system (fig . 4)
Use the drain tap to empty the system (5
fig . 4) . Turn off the boiler before doing this .
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 boilers 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 .
2 .7 INSTALLATION OF COAXIAL
DUCT (versions "BF")
2 .7 .1 Accessories 60/100 (fig . 5)
The 60/100 coaxial duct is supplied on
request in kit code 8084811 .
The diagrams of fig . 5 illustrate some exam-
ples of different types of discharge modali-
ties allowed and the maximum lengths that
can be reached .
2 .7 .2 Diaphragm for 60/100
For discharge types C12-C42, use the diaphragms supplied with the boiler:
- ø 79 .0 for version "25" only when the length of the coaxial duct is less than 1 metre .
- ø 81 .0 for version "30" only when the length of the coaxial duct is less than 1 metre .
For discharge types C32, use the following diaphragms according to the length of the duct and without
additional curves:
Installations with vertical
extension L . 200 code 8086908 *
Models "25 BF - 30 BF"
Diaphragm Diaphragm
ø 79
L max = 2 .5 m L max = 2 .5 m
* Minimum length of duct L = 1 .3 m .
72
IMPORTANT:
– Each additional 90° curve
installed reduces the available
length by 1 .0 metres .
– Each additional 45° curve
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 .
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
coaxial duct (fig . 5/a)
The boiler is supplied with a diaphragm of
ø 79 (version 25 BF), ø 81 (version 30 BF) .
Without Diaphragm
ø 81 diaphragm
L max = 5 m L max = 2 .5 m
x
2
4
y
3
C42
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. "30-35-40"
Installations with vertical condensation
collector code 8092803 *
Models "25 BF - 30 BF"
Diaphragm Without
ø 79 ø 81 diaphragm
L max = 2 .5 m L max = 5 m
7
6
2
3 8
C32
max 5,0 m per vers. Ò20Ó
max 3,5 m per vers. "25"
max 3,0 m per vers. "30-35-40"
1
C12
Use the diaphragms according to the indi-
cations of fig . 5/a .
2 .7 .3 Accessories ø 80/125
(fig . 6)
Fig . 5
Fig . 5/a