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FL D HF
3
EN
cod. 3541P701 - Rev. 00 - 10/2018
2.4 Adjustments
Summer/Winter Switchover
Press the summer/winter button (detail 6 - fig. 1) for 2 seconds.
The display activates the Summer symbol (detail 10 - fig. 1): the boiler will only deliver
domestic hot water. The antifreeze system remains activated.
To deactivate the Summer mode, press the summer/winter button (detail 6 - fig. 1)
again for 2 seconds.
Heating temperature adjustment
Use the heating buttons (details 3 and 4 - fig. 1) to adjust the temperature from a min. of
30°C to a max. of 80°C; in any case, it is advisable not to operate the boiler below 45°C.
fig. 4
DHW temperature adjustment
Use the DHW buttons (details 1 and 2 - fig. 1) to adjust the temperature from a min. of
40°C to a max. of 55°C.
fig. 5
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.
ECO/COMFORT selection
The unit has a function that ensures a high domestic hot water delivery speed and max-
imum comfort for the user. When the device is activated (COMFORT mode), the water
contained in the boiler is kept hot, thereby ensuring immediate availability of hot water
on opening the tap, without waiting times.
The user can deactivate the device (ECO mode) by pressing the eco/comfort button
(detail 7 - fig. 1). In ECO mode the display activates the ECO symbol (detail 12 - fig. 1).
To activate the COMFORT mode, press the eco/comfort button (detail 7 - fig. 1) again.
Sliding Temperature
When the optional external probe is installed the boiler adjustment system works with
"Sliding Temperature". In this mode, the heating system temperature is regulated ac-
cording to weather conditions, to ensure the high comfort and energy efficiency through-
out the year. In particular, as the outside temperature increases the system delivery
temperature decreases according to a specific "compensation curve".
With the Sliding Temperature adjustment, the temperature set with the heating buttons
(detail 3 - fig. 1) 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. However,
the user can make any further adjustments necessary to optimise comfort levels.
Compensation curve and curve offset
Press the reset button (detail 6 - fig. 1) for 5 seconds to access the “Sliding temperature”
menu; the display shows “CU” flashing.
Use the DHW buttons (detail 1 - fig. 1) to adjust the desired curve from 1 to 10 according
to the characteristic (fig. 6). By setting the curve to 0, the sliding temperature adjustment
is disabled.
Press the heating buttons (detail 3 - fig. 1) to access parallel curve offset; the display
shows “OF” flashing. Use the DHW buttons (detail 1 - fig. 1) to adjust parallel curve offset
according to the characteristic (fig. 7).
Press the reset button (detail 6 - fig. 1) 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.
fig. 6 - Compensation curves
fig. 7 - Example of compensation parallel curve offset
Adjustments from Remote Timer Control
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
System water pressure adjustment
The filling pressure read on the boiler water gauge (detail 2 - fig. 8) with system cold must
be approx 1.0 bar. If the system pressure falls below minimum values, the boiler stops
and fault F37 is displayed. Pull out the filling knob (detail 1 - fig. 8) and turn it anticlock-
wise to return it to the initial value. Always close it afterwards.
Once the system pressure is restored, the boiler will activate the 300-second air venting
cycle indicated on the display by Fh.
To prevent boiler shutdown, it is advisable to periodically check the pressure on the
gauge with system cold. In case of a pressure below 0.8 bar, it is advisable to restore it.
fig. 8- Filling knob
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Heating temperature setting
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 control panel.
Summer/Winter Switchover
Summer mode has priority over a possible Remote Timer Control
heating demand.
Eco/Comfort selection
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. 1) 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. 1) on the boiler panel.
Sliding Temperature
Both the Remote Timer Control and the boiler card manage Slid-
ing Temperature adjustment: the boiler card Sliding Temperature
has priority.
20
30
40
50
60
70
80
90
85
20 10 0 -10 -20
1
2
3
4
5
68910 7
20
30
40
50
60
70
80
90
85
20
30
40
50
60
70
80
90
85
1
2
3
4
5
6
8910
7
1
2
3
4
568910 7
OFFSET = 20 OFFSET = 40
1
A
B
1
Содержание
- Instructions for use installation and maintenance 1
- Fl d hf 2
- Fl d hf 3
- Fl d hf 4
- Fl d hf 5
- Fl d hf 6
- Fl d hf 7
- Cod 3541p701 rev 00 10 2018 8
- Configuration menu 8
- Fl d hf 8
- Heating power adjustment 8
- If the test mode is activated and enough hot water is drawn to activate the dhw mode the boiler remains in test mode but the 3 way valve goes to dhw 8
- Parameters indicated by the letter p are available which are also modifiable from remote timer control 8
- Parameters with more than one description vary their function and or range in rela tion to the setting of the parameter given in brackets 2 parameters with more than one description are reset to the default value if the pa rameter given in brackets is modified 8
- Press the heating buttons to scroll the list of parameters in increasing or decreasing or der press the dhw buttons to view or modify the value of a parameter the change will be automatically saved 8
- Service menu 8
- The card service menu is accessed by pressing the reset button for 20 seconds 4 sub menus are available press the heating buttons to select in increasing or decreasing or der ts in hi or re ts means transparent parameters menu in means information menu hi means history menu after selecting the submenu press the re set button again to access it re means history menu reset see description 8
- The configuration menu is accessed by pressing the dhw buttons together for 10 sec onds 12 parameters indicated by the letter b and not modifiable from remote timer control are available 8
- The test mode is automatically deactivated in any case after 15 minutes or on stopping of hot water drawing if enough hot water has been drawn to activate the dhw mode 8
- To adjust the heating power switch the boiler to test mode see sec 4 press the heating buttons detail 3 fig 1 to increase or decrease the power min 00 max 100 press the reset button within 5 seconds and the max power will remain that just set exit test mode see sec 4 8
- To deactivate the test mode press the heating buttons details 3 and 4 fig 1 together for 5 seconds 8
- To exit the configuration menu press the dhw buttons together for 10 seconds or exiting occurs automatically after 2 minutes 8
- Ts transparent parameters menu 8
- Fl d hf 9
- Cod 3541p701 rev 00 10 2018 10
- Diagnostics 10
- Fl d hf 10
- List of faults 10
- Other faults cause temporary shutdowns marked with the letter f which are automat ically reset as soon as the value returns within the boiler s normal working range 10
- Table 8 10
- Table 9 legend fig 27 fig 28 and fig 29 10
- Technical data and characteristics 10
- The boiler has an advanced self diagnosis system in case of a boiler fault the display will flash together with the fault symbol detail 11 fig 1 indicating the fault code 10
- There are faults that cause permanent shutdowns marked with the letter a to restore operation press the reset button detail 6 fig 1 for 1 second or reset on the op tional remote timer control if installed at this point the display will show d4 for about 30 seconds or d5 for about 5 minutes which indicates the waiting time after which the boiler will resume normal operation if the boiler fails to restart it is necessary to eliminate the fault 10
- Troubleshooting 10
- Fl d hf 11
- Fl d hf 12
- Fl d hf 13
- Fl d hf 14
- Fl d hf 15
- Fl d hf 16
- Fl d hf 17
- Fl d hf 18
- Fl d hf 19
- Fl d hf 20
- En 1856 1 21
- Fl d hf 21
- Fl d hf24 fl d hf32 21
- Fl d hf 22
- Cod 3541p701 rev 00 10 2018 23
- Fl d hf 23
- Fl d hf 24
- 9 27 28 29 25
- A 6 1 1 d4 30 d5 5 25
- Cod 3541p701 rev 00 10 2018 25
- Fl d hf 25
- Fl d hf 26
- Fl d hf 27
- Fl d hf 28
- Fl d hf 29
- Fl d hf 30
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