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4. ADJUSTING ROOM TEMPERATURE AND DHW TEMPERATURE
The system must be fitted with a room thermostat for controlling indoor temperature.
+/-
Adjust the room temperature (
) and the DHW temperature (
) by pressing the respective
(figure 1). The ignition
of the burner is shown on the display with the symbol ( ) as described in section 3.
HEATING
While the boiler is operating in the heating mode, the display (figure 1) shows the flashing symbol (
) and the heating
delivery temperature (°C).
DOMESTIC HOT WATER
While the boiler is operating in the DHW mode, the display (figure 1) shows the flashing symbol (
) and the DHW output
temperature (°C).
5. DESCRIPTION OF BUTTON
(Summer - Winter - Heating only - Off)
Press this button to set the following operating modes:
• SUMMER
• WINTER
• HEATING ONLY
• OFF
In the SUMMER mode, the display shows (
). The boiler satisfies requests for DHW only while central heating is NOT
enabled (ambient frost protection function active).
In the WINTER mode, the display shows (
). The boiler satisfies requests for both DHW and central heating (am-
bient frost protection function active).
In the HEATING ONLY mode, the display shows (
). The boiler satisfies requests for central heating only (ambient frost
protection function active).
In the OFF mode, the display shows neither of the above two symbols (
) (
). In this mode, only the ambient frost
protection function is active while requests for DHW and central heating are not satisfied.
6. FILLING THE SYSTEM
WARNING
Disconnect the boiler from the mains power supply using the two-pole switch.
IMPORTANT:
Regularly check that the pressure displayed on the pressure gauge is 0.7 - 1.5 bar, with the boiler cold.
In case of overpressure, open the boiler drain tap. In case of insufficient temperature, open the boiler filling tap (figure 3).
Open the tap very slowly in order to vent the air.
OPERATING INSTRUCTIONS
71.06199.02 - EN
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