71
EN
APPROXIMATE MINIMUM DISTANCES
≥ 50 mm
≥ 300 mm
≥ 900 mm
Fig. 10
2.5
New installation or installation of a
replacement appliance
When Brava Slim BF boilers are installed on old systems or
systems requiring updating, it is recommended the installer
checks that:
– the connecting flue pipe is suitable for the combustion tem-
perature of the appliance, calculated and manufactured in
compliance with Standards, that it is as straight as possible,
air tight, isolated, with no obstructions or restriction and
that it has appropriate condensate collection and evacua-
tion systems
– the electrical system has been manufactured in compliance
with specific Standards and by professionally qualified per-
sonnel
– the fuel delivery line and the tank (LPG) comply fully with
specific Standards
– the expansion vessel ensures total absorption of the fluid
dilation in the system
– the pump flow-head performance is sufficient for the sys-
tem characteristics
– the system is clean, free of any sludge, deposits, de aerated
and air tight.For system cleaning, please refer to the rele-
vant paragraph.
m
CAUTION
The manufacturer declines all liability for any dam-
age caused by an incorrect implementation of the
smoke outlet.
2.6
Cleaning the system
Before installing the appliance on a newly constructed sys-
tem or replacing a heat generator on an existing system, it
is important that the system is thoroughly cleaned to remove
sludge, slag, dirt, residue etc.
Before removing an old heat generator from an existing sys-
tem, it is recommended that the user:
– puts a descaling additive into the water system
– allows the system to work with the generator active for a
few days
– drains the dirty water from the system and flushes the sys-
tem with clean water once or more than once.
If the old generator has already been removed or is not avail-
able, replace it with a pump to circulate water in the system
and then proceed as described above.
Once cleaning operations have been carried out and before
installing the new appliance, it is recommended that a fluid
is added to the water system to protect it from corrosion and
deposits.
m
CAUTION
For further information on the type of additive and
usage, please contact the appliance manufacturer.
2.7
Water system treatment
When filling and restoring the system it is good practice to use
water with:
– aspect: clear if possible
– pH: 6-8
– hardness: < 25°f.
If the water characteristics are different from those indicated,
it is recommended that a safety filter is used on the water de-
livery pipe to retain impurities, and a chemical treatment sys-
tem to protect against possible deposits and corrosion which
could affect boiler operation.
If the systems are only low temperature systems, it is recom-
mended that a product is used to prevent the development of
bacteria.
In any case, please refer to and comply with Legislation and
specific Technical Standards in force.
2.8
Boiler installation
Brava Slim BF
boilers leave the factory with a paper template
for installation onto a solid wall.
For installation:
– position the paper template (1) on the wall (2) where the
boiler is to be mounted
– make the holes and insert the expansion plugs (3)
– hook the boiler onto the plugs.
1
2
3
Fig. 11
Summary of Contents for Brava Slim 25 BF
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