Ferroli QUADRIFOGLIO B Instrucciones De Uso, Instalación Y Mantenimiento página 91

QUADRIFOGLIO B
Sliding temperature
When an external probe (optional) is installed, the corresponding symbol of the outside tempera-
ture is activated on the control panel display. The boiler adjustment system works with "Sliding
Temperature". In this mode, the temperature of the heating system is adjusted according to the
outside weather conditions, to ensure a high level of comfort and energy saving throughout the
year. In particular, as the outside temperature increases, the system delivery temperature de-
creases according to a specific "compensation curve".
With Sliding Temperature adjustment, the "Heating adjustment" temperature becomes the maxi-
mum system delivery temperature. It is advisable to set a maximum value to allow system adjust-
ment throughout its useful operating range.
The boiler must be adjusted at the time of installation by qualified personnel. Adjustments can in
any case be made by the user to improve comfort.
Compensation curve and curve offset
Access the Sliding Temperature menu. Adjust the required curve from 1 to 10 according to the
characteristic (fig. 28) through the parameter "Curve1" and confirm with the OK button.
By setting the curve to 0, the sliding temperature adjustment is disabled.
OTC Curve 1
1
to confirm
fig. 26 - Compensation curve
Adjust the parallel offset of the curves from 20 to 60 °C (fig. 29), through the parameter "Offset1"
and confirm with the OK button.
OTC Offset 1
40
to confirm
fig. 27 - Curve parallel offset
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. 28 - Compensation curves
OFFSET = 20
90
10 9 8
85
80
70
60
50
40
30
20
fig. 29 - Example of parallel offset of compensation curves
This parameter is used only if time programming has been activated. See *** 'Time pro-
A
gramming' on page 85 ***
10 9 8 7 6
5
4
3
2
1
0 -10 -20
OFFSET = 60
90
8 6 5
9 7
10
7
85
6
80
5
70
4
60
3
50
2
40
1
30
20
cod. 3541F572 - Rev. 01 - 09/2015
Outside Temperature Heating OFF
Access the "Out Temp Heat Off" to activate the function: between 7°C and 30°C.
If activated, this function will deactivate the heating demand whenever the temperature
measured by the external probe is higher than the programmed value.
The heating demand will be reactivated as soon as the temperature measured by the ex-
ternal probe is lower than the programmed value.
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 1.
Table. 1
Heating temperature adjustment The adjustment can be made from the Remote Timer Control menu and the
DHW temperature adjustment
(with optional hot water tank
installed)
Summer/Winter Switchover
Eco/Comfort selection (with
optional hot water tank installed)
Sliding Temperature
System water pressure adjustment
The filling pressure with system cold must be approx. 1.0 bar. If the system pressure falls
to values below minimum, the boiler card will activate fault 37 (fig. 30).
Once the system pressure is restored, the boiler will activate the 300-second
A
air venting cycle indicated on the display by FH.
3
4
2
1
boiler control panel.
The 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 will select
the Economy mode. In this condition, the button detail 10 - fig. 1 on the boiler
panel is disabled.
On enabling DHW from the Remote Timer Control menu, the boiler will select
the Comfort mode. In this condition, with the button detail 10 - fig. 1 on the boiler
panel it is possible to select one of two modes.
Both the Remote Timer Control and the boiler card manage Sliding Temperature
adjustment: Sliding Temperature overrides the boiler card.
Nr:37
Src:1
fig. 30 - Low system pressure fault
EN