Immergas Nike Star 24 4 ErP, Инструкция и книга предупреждений

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2-2
INS
TALLER
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ER
MAINTEN
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Key:
1 - Filling valve
2 - Draining valve
2.6 BOILER SHUTDOWN.
Press key (2 fig. 2-1) ( ) until the following
symbol appears ( ).
N.B.: in these conditions the boiler is considered
still live.
Important: if the boiler is in stand-by “ ” code
error “31E” will be displayed on the Mini CRD.
The remote control is powered constantly so as
not to loose the memorised programs.
Disconnect the external omnipolar boiler switch
and close the gas cock upstream of the appliance.
Never leave the boiler switched on if left unused
for prolonged periods.
2.7 RESTORE HEATING SYSTEM
PRESSURE.
Periodically check the system water pressure.
The boiler pressure gauge should read a pressure
between 1 and 1.2 bar.
If the pressure is below 1 bar (with the circuit cool)
restore normal pressure via the cock located in the
lower part of the boiler (Fig. 2-2).
N.B.:
close the cock after the operation. If pres-
sure values reach around 3 bar the safety valve
may be activated.
In this case, remove water from an air vent valve
of a radiator until 1 bar is reached or ask for
assistance from an authorised company.
In the event of frequent pressure drops, contact
qualified staff for assistance to eliminate possible
system leakage.
2.8 SYSTEM DRAINING.
To drain the boiler, act on the special draining
valve (Fig. 2-2 e 1-8).
Before draining, ensure that the filling valve is
closed.
2.9 ANTI-FREEZE PROTECTION.
The boiler is supplied with an antifreeze function
as per standard that activates the function of the
pump and the burner when the internal system
water temperature in the boiler falls below 4°C
and stops when it exceeds 42°C. The antifreeze
function is guaranteed if the boiler is fully ope-
rative, is not in “block” status and is electrically
powered. To avoid keeping the system switched
on in case of a prolonged absence, the system
must be drained completely or antifreeze sub-
stances must be added to the heating system
water. In both cases the boiler domestic hot
water circuit must be drained. In systems that
are drained frequently, filling must be carried out
with suitably treated water to eliminate hardness
that can cause lime-scale.
2.10 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the boiler casing. Never use abrasive or powder
detergents.
2.11 DECOMMISSIONING.
In the event of permanent shutdown of the boiler,
contact professional staff for the procedures and
ensure that the electrical, water and gas supply
lines are shut off and disconnected.
BOTTOM VIEW