Riello Condexa Pro3 230 IN V02, Installation Instructions Manual

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9
INSTALLATION
4.3 Water connections
Condexa Pro3 IN-EXT thermal modules are made up of 2, 3 or 4
thermal elements which are common to all the boilers belong-
ing to the same family and they have a thermal power of 115 kW
(Hi).
The modules can be installed in cascade according to the power
required by the installation and they can reach a maximum of
32 thermal elements. The grouping of more than one module
allows to make some noiseless thermal plants, with low ther-
mal inertia and high power in a very simple and rational way.
Each thermal module is equipped with the following connec-
tions which have been pre-set for the connection to the system
(see table).
MANIFOLD DIMENSION REMARKS
CONNECTION
TYPE
upper water
manifold
5” system inlet
Flanged man-
ifolds for an
easy connec-
tion to the
system
lower water
manifold
5” system outlet
gas manifold 3”
the gas inlet
can be con-
nected simul-
taneously to
the two ends
of the boiler
condensate
manifold
50 mm
connect to
sewer system
See par. 4.6
Socked ends
manifolds for
an easy real-
ization of the
flue system
using plastic
pipes (PP).
flue pipe (sin-
gol unit)
110 mm See par 4.8
4.4 System cleaning and water treatment
This preventive measure is absolutely required whenever a heat
generator needs to be replaced in but it is in any case recom-
mended also on new systems, in order to remove any waste,
dirt, working residues, etc.
To clean the system, if the old generator is still present in the
system:
− add a descaling additive to the system water (contact the
R
Technical Assistance Service);
− Have the system operate with the generator ON for ap-
proximately 7 days;
− Discharge the system’s dirty water and wash the system
once or several times using clean water.
If the system is very dirty, repeat the last procedure one more
time.
If the old generator is not present or available, use a pump to
circulate the water + additive through the system for about 10
days and perform a final washing as described in the previous
paragraph.
At the end of cleaning operations, before installing boiler Con-
dexa Pro3 IN-EXT , it is advisable to add protection) to the system
water (contact the R Technical Assistance Service);
0
Please contact the
R
Technical Assistance Service for
flushing out the water circuit inside the exchanger. Do not
use incompatible liquid detergents, including acids (e.g.
hydrochloric acid and similar acids) at any whatsoever con-
centration.
4.5 Positioning and preparation for installation
Follow the procedure below to install the thermal groups:
1 After unpacking the boiler/s, establish the output direction
of the water, gas and condensate pipes (e.g.: left or right
connection). Also establish the modality and the position
of both the flue manifold and the eventual air manifold
(in case of installation with outside air intake). It is recom-
mended to take into account the electric connections (230
V supply) of the thermal group too (see paragraph 6.2).
Please note that each pipes connection to the system
can be indifferently made at the right of left side of the
thermal group.
However, it is suggested to follow one of the schemes of
installation reported on this manual (see chapter 5).
2 Place the thermal group/s near the inlet and outlet pipes
of the system. The groups can be installed either with right
or left outlet of water, air, smokes, condensate, gas pipes
(e.g.: air inlet on the right, water outlet on the left, gas on
the right).
The position of each Condexa Pro3 IN-EXT inside the area
of installation can vary according to specific requirements
of space or to the type of the installation itself (e.g.: leaned
against the wall, back-to-back, etc.); in any case, make
sure that same necessary space is left for the passage of
the electric supply cables of each Condexa Pro3 IN-EXT and
to let the front panel open. Space is also required in case
of maintenance services of the flue, condensate, and gas
pipes.
3 1. Mount the side panels of the Condexa Pro3 IN-EXT and
connect the first (or the only) thermal group of the battery
to the system, use the correct connections and carefully
avoid any sudden variation of section among the piping of
both the boilers and the system. If necessary, adjust the
boiler’s feet height to level the frame of the boiler and to
open the doors easily.
4 2. Once water connections between the first group and
the system have been made, connect successively the oth-
er eventual thermal groups to the first one, following the
advice above. Use sections male/male Ø 50 mm of about 13
cm lengths to connect the different condensate discharges.