47
When the unit is switched on (or when it is reset), and where no heat has been requested, the system runs
through the following procedure:
●
5 second safety pause;
●
60 seconds circulator activation;
●
circulator switched off
This cycle is run every 24 hours and 24 hours after the last heat request. The above operations ensure that the
components are put in motion at least once a day.
HEATING
The heating start-up cycle, after a period of inactivity, is as follows:
●
pump activated;
●
air pressure switch contacts checked (they must be closed);
●
fan switched on;
●
when heat is requested pre-ventilation begins;
●
ignition transformer switched on and gas valve opened;
●
if flame detection reveals normal operation the fan runs for a few seconds at maximum power and then
modulation begins.
When heat is no longer requested the burner is switched off while the pump continues to run for 3 minutes
(post-circulation time).
If the flame is not detected the pre-ventilation/ignition cycle is repeated after a set safety period has elapsed
(repeated up to 3 times, after which the unit is shut down).
OPERATION
IGNITION
SYSTEM FILLING
Open the inlet cock slowly until the system reaches a working pressure (indicated on the hydrometer) of
approximately 1 bar, then close it. Check that the automatic air bleed valve has its cap loosened, run the
circulator to eliminate the any air in the circuit, proceeding as follows: press the ON button on the control
panel (the display lights up) to start the circulator. Press the OFF button to stop the circulator; repeat the
procedure until all the air has been vented.
IGNITION
Open the gas tap, press the ON button. The burner will ignite automatically.
Should the unit fail to ignite there will be another 3 ignition attempts after which there will be a shutdown (the
display will flash
2 - 02
). Press RESET: if the unit still fails to ignite contact the technical assistance service.
82
La centralita de la caldera cuenta con un microprocesador que permite memorizar las posibles anomalías o
bloqueos de las secuencias, indicando un código.
El significado del código se indica en la tabla siguiente:
CÓDIGO DE BLOQUEO (sólo lectura)
1
a
Cifra
Anomalia
2
a
Cifra
0
1
2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
9
9
9
9
00
01
02
03
04
05
06
07
10
11
13
14
15
16
17
24
26
30
31
32
36
37
41
42
44
60
08
28
29
12
18
19
25
Anomalía circuito detección llama
Cortocircuito 24 V
Falta detección, ausencia llama en el quemador
Anomalía tarjeta
Bloqueo interno tarjeta (ejemplo, interrupción alimentación eléctrica)
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
NTC1/NTC2 conexión intercambiada
Presión gas mínima (en presencia del presostato)
Superada la diferencia
∆
T entre T1 y T2 (> 35
°
C)
Cortocircuito NTC1
Cortocircuito NTC2
NTC1 abierto
NTC2 abierto
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
Anomalía tarjeta
No ha intervenido el presostato del aire
Ventilador no funciona, falta señale tacométrica
El ventilador sigue girando, señal tacométrica errado
Presostato falta agua
Intervención del TST (> 98
°
C)
Temperatura de retorno T2 demasiado alta (> 88
°
C)
Variación demasiado rápida temperatura T1 (T1 = temperatura de ida)
Содержание FUTURIA 24 MT W TOP
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