Characteristics; Electronic Board - Sime Format Dewy.zip 25 BF Manual De Instrucciones

3

CHARACTERISTICS

IT
ES
3. 1

ELECTRONIC BOARD

The electronic boards are manufactured in
PT
compliance with the EEC 73/23 low-voltage
directives. They are supplied with 230V.
GB
The electronic components are guaranteed
against a temperature range of 0 to
+60°C. An automatic and continuous modu-
RUS
lation system enables the boiler to adjust
the heat output to the various system requi-
rements or the User's needs.
3. 1 . 1 Fault finding
The indicator leds signalling irregular
and/or incorrect operation of the equip-
ment are indicated in fig. 16.
3. 1 .2 Devices
The electronic board is equipped with the
following devices (fig. 17):
– "POT. RISC." trimmer (pos. 6)
Sets the maximum heating power value.
To increase the value turn the trimmer
clockwise; to reduce the value turn the
trimmer anticlockwise.
– "POT. ACC." trimmer (pos. 3)
Trimmer to vary the pressure level upon
ignition (STEP), of the gas valve. Factory
set with 95 Hz ignition step. To increase
pressure, turn the trimmer clockwise; to
reduce pressure, turn the trimmer coun-
terclockwise. The slow ignition pressure
level can be set during the first 7
seconds following burner ignition.
After setting the pressure level upon
ignition (STEP) according to the type of
NOTE: To gain access to trimmers (2-3-4-6), unscrew the central heating potentiometer knob.
80
8
7
Operating mode
Stand-by
Flame presence
Flame detection
circuit fault
Ignition lock
100°C safety stat (TS)
or smoke stat (TF)
intervention
Water flow switch (FL)
or limit stat (TL)
intervention
Fan fault
C.H. sensor
fault (SM)
Boiler off
6 4
5
3
1
9
11 2 10
Bi-colour led 1
Bi-colour led 2
Bi-colour led 1 Bi-colour led 2
On green
On green On orange
On green Blinking orange
Off
Off
Blinking orange
Blinking green
On orange
Off
2
6 4 3
KEY
1 Bi-colour led 1
2 "MAX" fan speed trimmer
3 "POT. ACC." trimmer
4 "MIN" fan speed trimmer
5 Bi-colour led 2
6 "POT. RISC." trimmer
7 D.H.W. potentiometer
8 Fuse (1,6 AT)
9 "JP2" connector
10 "JP1" connector
11 C.H. potentiometer
Off
On red
On red
Off
Off
Off
Off
Fig. 16
Fig. 17