Ferroli ATLAS 25 K 100 UNIT Instrucciones De Uso, Instalación Y Mantenimiento página 47

ATLAS 25 K 100 UNIT
Boiler lighting
• Open the fuel shut-off valves.
• Switch on the power to the unit.
fig. 5 - Boiler lighting
• For the following 120 seconds the display will show FH which identifies the heating
system air venting cycle.
• During the first 5 seconds the display will also show the card software version.
• When the message FH disappears, the boiler is ready to operate automatically
whenever domestic hot water is drawn or in case of a room thermostat demand.
Turning the boiler off
Turn both knobs (details 1 and 2 - fig. 1) to minimum.
fig. 6 - Turning the boiler off
When the boiler is turned off, the PCB is still powered.
Domestic hot water and heating are disabled. The frost protection system remains acti-
vated.
To turn the boiler on again, turn both knobs (details 1 and 2 - fig. 1) to the desired tem-
perature.
The boiler will be immediately ready to operate whenever domestic hot water is drawn
or in case of a room thermostat demand.
60
40 80
20
0
60
40 80
20
0
60
40 80
20
0
60
40 80
20
0
fig. 7
cod. 3541I360 - Rev. 02 - 04/2018
2.4 Adjustments
Summer/Winter Switchover
Turn the Heating knob (detail 1 - fig. 1).
100
120
The boiler will only deliver domestic hot water. The frost protection system remains acti-
vated.
To deactivate the Summer (Winter) mode, turn the Heating knob (detail 1 - fig. 1) to the
100
desired temperature.
120
Heating temperature adjustment
Operate the Heating knob (detail 1 - fig. 1) to adjust the temperature from a min. of 30°C
to a max. of 80°C.
It is advisable not to operate the boiler below 45°C.
DHW temperature adjustment
Operate the DHW knob (detail 2 - fig. 1) to adjust the temperature from a min. of 10°C to
100
a max. of 65°C.
120
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the temperature desired in the rooms. If the room ther-
mostat is not installed the boiler will keep the heating system at its setpoint temperature.
Room temperature adjustment (with optional remote timer control)
100
120 Using the remote timer control, set the temperature desired in the rooms. The boiler unit
will set the system water according to the required room temperature. For information on
the remote timer control, please refer to its user's manual.
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 knob (de-
tail 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.
60
40
20
0
fig. 8
60
40
20
0
fig. 9
60
40
20
0
fig. 10
EN
80
100
120
80
100
120
80
100
120
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