27
6.4
Installation room
The room where the appliance is to be installed must comply
with the Technical Regulations and Legislation in force. It must
be equipped with suitably sized ventilation openings when the in-
stallation is a "TYPE B" installation.
The minimum temperature of the installation room must NOT be
lower than
-5 °C
.
m
CAUTION
– Before assembling the appliance, the installer
MUST
make sure that the wall supports the weight.
– Remember to consider the space needed in order to
access the safety/adjustment devices and to carry
out maintenance interventions (see Fig. 34).
APPROXIMATE MINIMUM DISTANCES
≥ 50 mm
≥ 300 mm
≥ 900 mm
Fig. 34
6.5
New installation or installation of a replace-
ment appliance
When
MURELLE.HT
boilers are installed on old systems or sys-
tems 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 evacuation systems
– the electrical system has been manufactured in compliance
with specific Standards and by professionally qualified person-
nel
– the fuel delivery line and the tank (LPG) comply fully with spe-
cific Standards
– the expansion vessel ensures total absorption of the fluid dila-
tion in the system
– the pump flow-head performance is sufficient for the system
characteristics
– the system is clean, free of any sludge, deposits, de aerated
and air tight. For system cleaning, please refer to the relevant
paragraph.
m
CAUTION
The manufacturer declines all liability for any damage
caused by an incorrect implementation of the smoke
outlet or for an excessive use of additives.
6.6
Cleaning the system
Before installing the appliance on a newly constructed system 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 system,
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 system
with clean water once or more than once.
If the old generator has already been removed or is not available,
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 in-
stalling the new appliance, it is recommended that a fluid is add-
ed 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.
– Please remember that you
MUST
install a Y filter (not
supplied with the appliance) on the heating system
return (R).
Summary of Contents for 8115101
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