Place Of Installation; Plumbing Connections - Ferroli ECONCEPT 51 A Instrucciones De Uso

If the room temperature is lower than the required value, it is advisable to set a higher
order curve and vice versa. Proceed by increasing or decreasing in steps of one and
check the result in the room.
90
85
80
70
60
50
40
30
20
20 10
fig. 12 - Compensation curves
OFFSET = 20
90
10 9 8
7
85
6
80
5
70
4
60
3
50
2
40
1
30
20
20 10 0 -10 -20
fig. 13 - Example of compensation parallel curve offset
A
If the Remote Timer Control (optional) is connected to the boiler, the above ad-
justments are managed according to that given in table 1.
Table. 1
Heating temperature adjustment Adjustment can be made from the Remote Timer Control menu and the boiler
control panel.
DHW temperature adjustment Adjustment can be made from the Remote Timer Control menu and the boiler
(with optional hot water tank control panel.
installed)
Summer/Winter Switchover Summer mode has priority over a possible Remote Timer Control heating
demand.
Eco/Comfort selection (with On disabling DHW from the Remote Timer Control menu, the boiler selects the
optional hot water tank installed) Economy mode. In this condition, the button fig. 1detail 7 - on the boiler panel is
disabled.
On enabling DHW from the Remote Timer Control menu, the boiler selects the
Comfort mode. In this condition it is possible select one of the two modes with
the button detail 7 -fig. 1.
Sliding Temperature Both the Remote Timer Control and the boiler card manage Sliding Tempera-
ture adjustment: of the two, the Sliding Temperature of the boiler card has prior-
ity.
System water pressure adjustment
The filling pressure with the system cold must be approx. 1.0 bar. If the system pressure
falls to values below minimum, the boiler card will activate fault F37 (fig. 14).
fig. 14 - Low system pressure fault
A
Once the system pressure is restored, the boiler will activate the 120-second
air venting cycle indicated on the display by FH.
3. INSTALLATION
3.1 General Instructions
THE BOILER MUST ONLY BE INSTALLED BY QUALIFIED PERSONNEL, IN COMPLI-
ANCE WITH ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL MANUAL, THE
PROVISIONS OF CURRENT LAW, THE NATIONAL AND LOCAL REGULATIONS,
AND THE RULES OF PROPER WORKMANSHIP.
ECONCEPT 51 A is a high-efficiency heat generator arranged to operate alone or in cas-
cade (bank). When two or more generators ECONCEPT 51 A are installed in cascade
with the original kits FERROLI, respecting the prescriptions of this manual, they can be
considered as a single heat generator of total power equal to the sum of the powers of
all the units connected in cascade.
All the requirements of the current standards and regulations applicable to this "equiva-
lent" generator with total heating capacity must be met. In particular the place of instal-
40 EN
10 9 8 7 6
5
4
3
2
1
0 -10 -20
OFFSET = 40
90
10 9 8 7
85
80
70
60
50
40
30
20
20 10 0
eco
reset
comfort
cod. 3540S560 - 03/2009 (Rev. 00)
lation, safety devices and fume exhaust system must be adequate for the total heating
capacity of the bank of units.
In fact, each ECONCEPT 51 A is a complete and independent heat generator, equipped
with its own safety devices. In case of overtemperature, a lack of water or no circulation
in the unit, the protection devices cause the unit to switch off or shut down, preventing it
from working.
The installation instructions given in the following paragraphs concern both single units
and connection in cascade.

3.2 Place of installation

The combustion circuit is sealed with respect to the place of installation and therefore the
unit can be installed in any room. However, the place of installation must be sufficiently
ventilated to prevent the creation of any dangerous conditions in case of even small gas
leaks. This safety precaution is required by EEC Directive no. 90/396 for all gas-fired
units, including those with a so-called sealed chamber.
The unit can also work with air drawn from the installation room (B type). In this case, the
room must be provided with adequate ventilation, according to current regulations.
Therefore the place of installation must be free of dust, flammable materials or objects
or corrosive gases. The room must be dry and not subject to freezing.
The boiler is arranged for wall installation. Wall fixing must ensure a stable and effective
support for the generator.
6 5
A
If the unit is enclosed in a cabinet or mounted alongside, a space must be pro-
4
vided for removing the casing and for normal maintenance operations
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3.3 Plumbing connections

2
The heating capacity of the unit must be previously established by calculating the build-
1
ing's heat requirement according to the current regulations. The system must be provid-
ed with all the components for correct and regular operation. In particular, provide for all
the protection and safety devices required by the current regulations for the complete
modular generator. They must be installed on the hot water circuit delivery piping, imme-
-10 -20
diately after the last module, within a distance not more than 0.5 metres, with no shutoff
devices in between. The unit is not supplied with an expansion tank; its connection must
therefore be carried out by the Installer.
B
The safety valve outlet must be connected to a funnel or collection pipe to pre-
vent water spurting onto the floor in case of overpressure in the heating circuit.
Otherwise, if the discharge valve cuts in and floods the room, the boiler manu-
facturer cannot be held liable.
Do not use the water system pipes to earth electrical appliances.
Before installation, carefully wash all the pipes of the system to remove any residuals or
impurities that could affect proper operation of the unit.
B
Also, a filter must be installed on the system return piping to prevent impurities
or sludge from the system clogging and damaging the heat generators.
The filter must be installed when replacing generators in existing systems. The
manufacturer declines any liability for damage caused to the generator by fail-
ure to install or inadequate installation of this filter.
Carry out the relevant connections according to the diagram in fig. 33 and the symbols
given on the unit.
System water charcteristics
In the presence of water harder than 25° Fr (1°F = 10ppm CaCO
treated water is advisable in order to avoid possible scaling in the boiler. The treatment
must not in any case reduce the hardness to values below 15°F (Decree 236/88 for uses
of water intended for human consumption). Water treatment is indispensable in the case
of very large systems or with frequent replenishing of water in the system. If partial or
total emptying of the system becomes necessary in these cases, it is advisable to refill it
with treated water.
Antifreeze system, antifreeze fluids, additives and inhibitors
The boiler is equipped with an antifreeze system that turns on the boiler in heating mode
when the system delivery water temperature falls under 6°C. The device will not come
on if the electricity and/or gas supply to the unit are cut off. If it becomes necessary, it is
permissible to use antifreeze fluid, additives and inhibitors only if the manufacturer of
these fluids or additives guarantees they are suitable for this use and cause no damage
to the heat exchanger or other components and/or materials of the boiler unit and sys-
tem. It is prohibited to use generic antifreeze fluid, additives or inhibitors that are not ex-
pressly suited for use in heating systems and compatible with the materials of the boiler
unit and system.
ECONCEPT 51 A
), the use of suitably
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