thermital COROLLA PACK 1000 Series, Installation, Operation And Maintenance Manual

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Installation
4.1.1 Installation room
The thermal generator must be installed in
rooms that comply the Technical Standards
and Legislation in force and where the exhaust
of combustion products and air intake combus-
tion are reported outside the room. If the com-
bustion air is from the local of installation this
must be equipped with vents that follow tech-
nical standards and adequately sized.
Please consider the space needed for ac-
cessibility to safety and control devices and for
performing maintenance operations. We rec-
ommend to leave at least 500 mm from the
back of the boiler
Verify that the class of protection of ther-
mal generator is adequate to characteristics of
the local installation.
Where the heating units are supplied with
fuel gas with higher density than air, electrical
parts should be placed at a height above
ground 500 mm.
The heating units cannot be installed out-
doors (unless you are specific groups for out-
door).
The device is equipped with an antifreeze
function that protects the system in case of in-
stallation where temperature may go under
0°C. To operate the antifreeze protection must
be present electrical and gas supply, and the
correct hydraulic pressure.
4.1.2 Connections
Corolla Pack thermal modules are made up of
2, 3 or 4 thermal elements which are common
to all the boilers belonging to the same family
and they have a thermal power of 115 kW (H
i
)
or 128 kW (H
S
). 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 noise-
less thermal plants, with low thermal inertia
and high power in a very simple and rational
way. Each thermal module is equipped with the
following connections which have been pre-set
for the connection to the system (see Table 1).
4.1.3 System cleaning and water treatment
This preventive measure is absolutely required
whenever a heat generator needs to be re-
placed in but it is in any case recommended
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 wa-
ter (such as FERNOX Superfloc 2%);

Have the system operate with the genera-
tor ON for approximately 7 days;

Discharge the system’s dirty water and
wash the system once or several times us-
ing clean water.
If the system is very dirty, repeat the last pro-
cedure 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 per-
MANIFOLD DIMENSION NOTE CONNECTION
Upper water manifold 5” System inlet
Flanged manifolds for an easy connec-
tion to the system
Lower water manifold 5” System outlet
Gas manifold 3”
la rete gas può essere collegata con-
temporaneamente alle due estremità
della caldaia
Condensate manifold 50 mm
Connect to sewer system
See par. 4.1.5
Socked ends manifolds for an easy reali-
zation of the flue system using plastic
pipes (PP).
Flue pipe
(singol unit)
110 mm See par. 4.1.7
Table 1