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The following table lists the central heating temperature
range by k-factor setting value and the applicable outdoor
temperature range.
Outdoor Temperature Compensation
90
80
70
60
50
50
40
30
20
20
15
10
Outdoor Temperature (ºC)
To connect the outdoor temperature sensor to the
Note
boiler, carefully follow the connection instructions
provided in the "12.4 Outdoor Temperature Sensor
(Optional)" on page 92.
2.6.3 Operating in DHW Mode
To operate the DHW mode:
1. Press the Menu button (
select "3. DHW Operation" by pressing the OK button (
2. In the DHW Operation menu, select "1. DHW Set Temp" and
select a DHW temperature setpoint higher than current
DHW temperature.
When a hot water tap is turned on in the home, the boiler
●
flow meter detects DHW demand, the 3-way valve goes
to DHW mode and the circulation pump starts up, which
makes the water in the boiler primary circuit flow through
the DHW heat exchanger, producing instant hot water.
The electronic control modulates the burner output in
●
order to constantly produce hot water at the temperature
required.
18
About the Boiler
4 3.5 3
2.5
2
5
0
-10 -15 -20 -25
-5
) to access the Main menu and
When there is no further DHW demand, the burner
●
switches off and the 3-way valve remains in DHW mode
position during a wait time (5 minutes by default), so that
it can work more efficiently and provide more flexibility if
the taps are continuously turned on and off.
When the wait time has elapsed, the 3-way valve returns
●
to the Heating mode position and the boiler is ready to
1.5
provide heating.
1.2
DHW priority: Whenever a hot water tap is turned
Note
●
1
on in the home, the boiler begins to run in DHW
mode and the heating function is deactivated until
0.6
all the taps are turned off again.
If the boiler water pressure drops below 0.4 bar,
0.2
●
refer to "4.8 Filling the System" on page 41 to fill
the boiler system.
).
Gas
Valve
Gas
Inlet
DHW Out
Cold
Water In
Exhaust
Gas
Air In
Air In
Ignitor
Blow Fan
Heat Exchanger
Circulation
Pump
Three
-way
Valve
DHW Heat
Exchanger
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