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gauge (6) read a system pressure between 1 and
1,2 bar.
Insufficient water circulation. It is verified if there
is an over heat condition of the boiler, caused by an
insufficient water circulation inside the system;
causes may be the following:
- scarce water circulation on system; verify that there
is not a closed intercepting valve along the heating
circuit and that the system is completely without
air;
- blocked circulating pump; the circulating pump
must be de-blocked.
If the problem is frequent, contact an authorised
technician (e.g. Immergas Technical Service)
Remote control not compatible. It is verified if is
connected a Remote Control not compatible with the
boiler, or if the data interchange between Amico
Remote Control and boiler is interrupted. Try the
connection procedure turning-off the boiler and re-
set the switch (5) to (
a qualified technician (e.g. Immergas Technical
Service).
Boiler diagnosis signalling - Display of Amico
Remote Control (Optional). During normal
operation of the boiler, on the A.R.C. display the room
temperature is showed; in case of fault or anomaly,
the display of temperature is replaced by the
comparative error-code showed on page 22.
2.6 Boiler shutdown.
Turn off the main switch (5) by setting to "0" (green
indicator lamp 4 OFF) and close the gas supply valve
upstream of the appliance. Never leave the boiler
switched on if left unused for prolonged periods.
2.7 Heating system pressure.
Periodically check the system water pressure. The
boiler pressure gauge should read a pressure be-
tween 1 and 1,2 bar.
If the pressure falls below 1 bar (with the circuit cool)
restore normal pressure via the valve located at the
bottom of the boiler (see figure).
N.W.: close the valve on completion.
If pressure values reach around 3 bar the safety valve
VIEW FROM REAR
DOMESTIC WATER
INLET VALVE
GAS VALVE
) position. In case contact
DRAIN VALVE
FILLING VALVE
may be activated.
In this case contact a professional technician for as-
sistance.
In the event of frequent pressure drops, contact quali-
fied personnel for assistance to eliminate system
leakage.
2.8 Draining the system.
To drain the system completely, use the drain valve
(see figure above and on page 19-20).
Before draining, ensure that the filling valve is closed.
2.9 Anti-freeze protection.
The boiler is equipped as standard with an anti-freeze
function that activates the pump and burner when
system water temperature falls below 4°C and de-
activates once temperatures reach 42°C. The anti-
freeze function is guaranteed if the boiler is totally
operative and not in "block" status, when connected
to the electrical power supply and the main switch is
set to Summer or Winter mode. To avoid continued
operation in the event of prolonged absence, the sys-
tem must be drained completely or anti-freeze sub-
stances should be added to the heating system wa-
ter. In both cases the domestic water circuit in the
boiler must be drained. In appliances subject to fre-
quent draining, the system must be refilled with suit-
ably treated water to eliminate hardness that may
cause limescale formation.
2.10 Casing cleaning.
Use damp cloths and neutral detergent to clean the
boiler casing. Never use abrasive or powder deter-
gents.
2.11 Decommissioning.
In the event of permanent shutdown of the boiler,
contact professional personnel for the procedures
and ensure that the electrical, water and gas supply
lines are shut off and disconnected.
23
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