84
The boiler must be installed in a fixed loca-
tion and only by specialized and qualified
firms in compliance with all instructions
contained in this manual.
Furthermore, the installation must be in
accordance with current standards and
regulations.
2.1
BOILER ROOM
The
“PLANET DEWY 30 BFR”
version boi-
lers can be installed in any domestic envi-
ronment without any location restrictions
or comburent air requirements.
The following optional accessories are avail-
able to facilitate water and gas connection
of the boiler with the heating system:
– fixing jig code 8081205
– codos kit code 8075418
– cock kit code 8091806
– system filling kit code 8094010
– kit for replacement of other brands’ wall-
mounted units code 8093900.
Detailed instructions for assembly of the
unions are provided with the kits.
2.2
INSTALLATION OF MULTIPLE
BOILERS IN MODULAR UNITS
USING THE SUITABLE KIT
Installation of modular plants consisting of
three or four appliances for the same use in
the same room or in adjoining rooms with a
total input of over 70 kW, is considered part
of a single plant, meaning that the size and
characteristics of the boiler room must com-
ply with current safety regulations.
The distance between the walls of the room
and the external points of the boiler (right,
left and rear panels) must not be less than
0.5 m. To ensure adequate airing of the
room, ventilation inlets with the sur face
areas laid down by the UNE 60-601 stan-
dard must be made in the external walls.
2.3
CONNECTING UP SYSTEM
Before proceeding to connect up the boi-
ler, you are recommended to make the air
circulating in the piping in order to elimi-
nate any foreign bodies that might be
detrimental to the operating efficiency of
the appliance. When making the hydraulic
connections, make sure that the dimen-
sions indicated in fig. 1 are respected.
The discharge pipe of the safety valve
must be connected to a collector funnel
for channelling away any discharge if the
safety valve goes into action.
Gas connections must comply with UNI
7129/92 and UNI7131/99 standards.
When sizing gas piping, from the meter to
the boiler, take into account both the volu-
me flow rates (consumption) in m
3
/h and
the relative density of the gas in question.
The sections of the piping making up the
system must be such as to guarantee a
supply of gas sufficient to cover the maxi-
mum demand, limiting pressure loss
between the gas meter and any apparatus
being used to not greater than 1.0 mbar for
family II gases (natural gas).
An adhesive data plate is sticked inside the
front panel; it contains all the technical data
identifying the boiler and the type of gas for
which the boiler is arranged.
2.3.1
Connection
of condensation
water trap
The drip board and its water trap must be
connected to a civil drain through a pipe
with a slope of at least 5 mm per metre to
ensure drainage of condensation water.
The plastic pipes normally used for civil
drains are the only type of pipe which is
appropriate for conveying condensation
to the building’s sewer pipes.
2.3.2
Filter on the gas pipe
The gas valve is supplied ex factory with an
inlet filter, which, however, is not adequate
to entrap all the impurities in the gas or in
gas main pipes.
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.
2.4
CHARACTERISTICS OF
FEEDWATER
To prevent lime scale and damage to the
tap water exchanger, the water supplied
should have a hardness of no more than
20°F. In all cases the water used should be
tested and adequate treatment devices
should be installed. To prevent lime scale or
deposits on the primary exchanger, the
water used to supply the heating circuit
should must be treated in accordance with
UNI-CTI 8065 standards.
It is absolutely essential that the water is to
be treated in the following cases:
– Very extensive system (with high con-
tents of feedwater).
– Frequent addition of makeup water into
the system.
– Should it be necessary to empty the
system either partially or totally.
2.5
SYSTEM FILLING
The charge pressure, with the system cold,
must be
1 bar
.
Filling must be done slowly so as to allow
any air bubbles to be bled off through the air
valves. A system filling kit may be supplied
on request containing assembly instruc-
tions.
2.6
COAXIAL DUCT ø 60/100
The air inlet-smoke outlet assembly, code
8096200, is included in the standard sup-
ply of the appliance complete with mounting
instructions.
2.6.1
Coaxial duct
accessories
The accessories to be used for this type of
installation and some of the connecting
systems that may be adopted are illustred
in fig. 6.
With the pipe bend included in the kit, the
maximum length of the piping should not
2
INSTALLATION
Fig. 6
KEY
1a-b Coaxial duct kit code 8096200
2
Extension L. 1000 code 8096100
3
Vertical extension L. 200
with take-off point code 8086904
4
90° additional bend code 8095800
NOTE: The pipe should be sloped toward the interi-
or so that condensation will run off into the boiler.
IMPORTANT:
– Each additional 90° curve installed reduces the
available length by 0.90 metres.
– Each additional 45° curve installed reduces the
available length by 0.45 metres.
