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10 Maintenance
Fig.106
AUTO position
AD-0001352-01
Fig.107
FILL position
AD-0001358-01
Fig.108
AUTO/OFF position
AD-0001352-01
112
AMC
10.4.2
Activating the automatic refill device (if fitted)
The automatic refill device can be used by the installer to fill the system to
the desired water pressure during maintenance work. To do this, proceed
as follows:
1. Check that the boiler is switched on.
Caution
The automatic refill device is only active if the boiler is switched
on.
The automatic refill device is only active in the AUTO position.
2. If the water pressure in the installation has dropped below the
maximum water pressure but is still higher than the set minimum
water pressure, the refilling system can be activated:
2.1. Go to
> Start water filling.
2.2. Press the
button to start the refill.
3. A message will appear on the display when automatic refilling is
complete:
3.1. Press the
key to go back to the main display.
Caution
The warning code A02.33 will be displayed if refilling is taking
too long. The boiler will continue to operate normally.
The boiler can interrupt refilling temporarily for normal heating
activities such as producing hot tap water.
10.4.3
Topping up the system (manually)
Caution
Before filling, open the valves on every radiator in the central
heating system.
1. Check the water pressure on the boiler display.
2. Set the automatic refill device to FILL and refill the system.
Important
The recommended water pressure is between 1.5 bar and 2 bar.
3. Set the automatic refill device to AUTO/OFF.
4. Check the water-side connections for tightness.
7686707 - v.01 - 06092018
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