General Instructions; Place Of Installation; Plumbing Connections - Ferroli ECONCEPT TECH 25 A Instrucciones De Uso

ECONCEPT TECH 25 A - 35 A
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the temperature required in the rooms. If the room ther-
mostat is not installed, the boiler will keep the system at the set system delivery setpoint
temperature.
Room temperature adjustment (with optional remote timer control)
Using the remote timer control, set the required temperature in the rooms. The boiler will
adjust the system water according to the required room temperature. For operation with
remote timer control, please refer to the relevant instruction manual.
Hot water tank exclusion (economy)
Hot water tank temperature maintaining/heating can be excluded by the user. If exclud-
ed, domestic hot water will not be delivered.
The hot water tank can be deactivated by the user (ECO mode) by pressing the ECO/
COMFORT button (detail 7 - fig. 70). In ECO mode the display activates the ECO symbol
(detail 12 - fig. 70). To activate COMFORT mode, press the ECO/COMFORT button (de-
tail 7 - fig. 70) again.
Sliding Temperature
When the optional external probe is installed, the boiler adjustment system works with
"Sliding Temperature". In this mode, the temperature of the heating system is controlled
according to the outside weather conditions, to ensure high comfort and energy saving
throughout the year. In particular, the system delivery temperature is decreased as the
outside temperature increases, according to a specific "compensation curve".
With Sliding Temperature adjustment, the temperature set with the heating buttons (de-
tail 3 - fig. 70) becomes the maximum system delivery temperature. It is advisable to set
a maximum value to allow system adjustment throughout its useful operating range.
The boiler must be adjusted at the time of installation by qualified personnel. Possible
adjustments can in any case be made by the user to improve comfort.
Compensation curve and curve offset
Press the reset button (detail 6 - fig. 70) for 5 seconds to access the "Sliding tempera-
ture" menu; the display shows "CU" flashing.
Use the DHW buttons (detail 1 - fig. 70) to adjust the curve from 1 to 10 according to the
characteristic. By setting the curve to 0, sliding temperature adjustment is disabled.
Press the heating buttons (detail 3 - fig. 70) to access parallel curve offset; the display
shows "OF" flashing. Use the DHW buttons (detail 1 - fig. 70) to adjust the parallel curve
offset according to the characteristic (fig. 75).
Press the reset button (detail 6 - fig. 70) again for 5 seconds to exit the "Sliding Temper-
ature" menu.
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.
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. 6 - Example of compensation parallel curve offset
Adjustments from Remote Timer Control
If the Remote Timer Control (optional) is connected to the boiler, the above ad-
A
justments are managed according to that given in table 28.
Table. 1
Heating temperature setting
DHW temperature adjustment
Summer/Winter Switchover
Eco/Comfort selection
Sliding Temperature
OFFSET = 40
90
10 9 8 7
85
80
70
60
50
40
30
20
20 10 0 -10
Adjustment can be made from the Remote Timer Control menu
and the boiler control panel.
Adjustment can be made from the Remote Timer Control menu
and the boiler control panel.
Summer mode has priority over a possible Remote Timer Control
heating demand.
On disabling DHW from the Remote Timer Control menu, the
boiler selects the Economy mode. In this condition, the eco/com-
fort button (detail 7 - fig. 70) 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 eco/comfort button (detail 7
- fig. 70) on the boiler panel.
Both the Remote Timer Control and the boiler card manage Slid-
ing Temperature adjustment: the boiler card Sliding Temperature
has priority.
cod. 3540R802 - 07/2012 (Rev. 00)
System water pressure adjustment
The filling pressure read on the boiler water gauge with the system cold must be approx
1.0 bar. If the system pressure falls to values below minimum, the boiler stops and fault
F37 is displayed. Bring it to the initial value by means of the filling cock detail 1 fig. 76.
At the end of the operation always close the filling cock.
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

BOILER INSTALLATION MUST ONLY BE PERFORMED BY QUALIFIED PERSON-
NEL, IN ACCORDANCE WITH ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL
MANUAL, THE PROVISIONS OF CURRENT LAW, THE PRESCRIPTIONS OF NA-
TIONAL AND LOCAL STANDARDS AND THE RULES OF PROPER WORKMANSHIP.

3.2 Place of installation

The combustion circuit is sealed with respect to the place of installation, therefore the
unit can be installed in any room. However, the place of installation must be sufficiently
ventilated to prevent the creation of dangerous conditions in case of even small gas
leaks. This safety standard is required by the EEC Directive no. 2009/142 for all gas
units, including those with sealed chamber
The unit is suitable for operation in a partially protected place in compliance with EN 297
pr A6, for temperatures to -5°C. It is advisable to install the boiler under the slope of a
roof, inside a balcony or in a sheltered recess.
6 5
4
Therefore the place of installation must be free of dust, flammable materials or objects
3
or corrosive gases.
2
The boiler is arranged for wall mounting and comes standard with a hooking bracket. Fix
1
the bracket to the wall according to the measurements given in the cover drawing and
hook the boiler on it. A metal template for marking the drilling points on the wall is avail-
able by request. The wall fixing must ensure stable and effective support for the gener-
ator.
-20
If the unit is enclosed in a cabinet or mounted alongside, a space must be pro-
A
vided for removing the casing and for normal maintenance operations

3.3 Plumbing connections

Important
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.
B
Before making the connection, check that the unit is arranged for operation with
the type of fuel available and carefully clean all the system pipes.
Carry out the relevant connections according to the diagram in fig. 77and the symbols
given on the unit.
A
1
82.5 76
A =ECONCEPT TECH 25 A - B =ECONCEPT TECH 35 A
1 = System delivery - 3 = Gas inlet
5 = System return - 6 = Safety valve discharge
fig. 7 - Filling cock
B
3
5
6
54 65 66.5 56
97
fig. 8 - Plumbing connections
1
3
1
5
6
67 81 65 66.5 73.5
29
EN