Unical !DEA User Manual

5
ENGLISH

This symbol indicates that the burn-
er is in operation.
The symbol lights up when the boil-
er receives a request for heating or
domestic hot water production.
F - Operation in heating mode
The symbol lights up when the
boiler receives a request in heating
mode. If a request for domestic hot
water production is received at the
same time, the light switches off.
G - Operation in hot water
production mode
This symbol lights up when there
is a request for domestic hot water.

The symbol lights up when the
burner safety device has inter-
vened, due to:
- No gas
- Failed ignition
Intherstcase,inwhichtheburner
will not light, one must check if the
gas valve is open.

The symbol lights up on the display
monitor when the boiler detects an
operation anomaly or it is blocked
due to a permanent fault. The code
thatidentiesthecauseisdisplayed
in place of the degrees centigrade
bypressingtheunblockbutton(D).
The symbol is also displayed by en-
abling the calibration function and
asheswhenchangingparameters.

Byactingonthisbuttonfor<1sec.
one can:
- restart the boiler after the burner
safety device has intervened, ac-
tivating the symbol on the display
- display the error code when the
boiler operation is block due to
a permanent fault, activating the
symbol on the display
Thermometer
If, on the display, the symbol
( ) is lit up, the temperature in-
dicated is that relating to the water
for the heating circuit
If, on the display, the symbol
(
) is lit up, the temperature in-
dicated is that relating to the water
for the domestic hot water circuit.
A - Pressure gauge
Displaysthewaterpressureinside
the heating circuit; this pressure
valuemustnotbebelow0.8/1bar
(when cold).
Ifthepressure drops below 0.8/1
bar, one must restore the correct
valuebyactingonthesystemll-
ing valve. This operation must be
carried out when the boiler is cold.

1 Make sure the gas shut-off valve upstream of
the boiler is open.
2 Check that any shut-off valves
formaintenance,ontheowand
return are open.
3 Check that the shut-off valve, for maintenance,
on the domestic cold water inlet is open.
4 Check that the safety valves outlet has been
connected to the drains.
5 Checkthattheboilerispoweredelectrically;
the display (E) on the control panel must be
lit up.
6 Check the water pressure on the boiler pres-
suregauge (A); for optimum operation, the
pressure should be between 0.8 and 1 bar
(with pump stopped).
Shouldthepressurebelowerthan0.7barwith
the system cold, restore pressure by opening
thesystemllingtap(seepar.6.4).

Unical !DEA Specifications

General

Brand	Unical
Model	!DEA
Category	Boiler
Language	English