Sime PLANET 25 BFT TS, Руководство пользователя

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IT
ES
PT
GB
RO
RUS
cancelled. In this case, the times ela-
psing between turning off and subse-
quent re-ignition will depend on a tempe-
rature difference of 5°C detected by the
SM sensor (heating flow sensor).
– DIP SWITCH (13 fig. 25)
Ensure that the riders are inserted in
the position shown in order:
– Connector “Modureg Sel.” (14 fig. 25)
With the bridge disconnected the boiler
is predisposed to function with the SIT
gas valve, and with the bridge connected
it is predisposed to function with the
HONEYWELL gas valve.
– Connector “Albatros” (15 fig. 25)
The bridge must always be disconnected.
It is connected only when multiple boilers
are installed in a sequence/cascade.
ATTENTION: It is essential that the opera-
tions described above be carried out by
authorized technical staff.
3.2 TEMPERATURE SENSOR AND
WATER PRESSURE TRANSDUCER
Anti-freeze system with heating NTC probe
active when water temperature drops to
6°C.
Tables 3 - 4 show the resistance values (
Ω
)
that are obtained on the sensor as the
temperature varies and the transducer
values obtained as the pressure varies.
When C.H. sensor (SM) is interrupted,
neither of the boiler's heating services
will function. With D.H.W. sensor inter-
rupted, the boiler will only work in hea-
ting mode.
3.3 ELECTRONIC IGNITION
Ignition and flame detection is controlled by
two electrodes located on the burner.
These guarantee maximum safety with
intervention times, for accidental swit-
ching off or gas failure, of within one
second.
3.3.1 Operating cycle
Rotate the selector knob to summer or win-
ter, and verify that green led ( ) lights up
to confirm the presence of voltage.
The boiler is now ready to start working
upon demand for heating or drawing off
of D.H.W.; a discharge current is sent to
the ignition electrode through the pro-
grammer, and the gas valve opens at the
same time. The burner must be ignited
within 10 seconds.
However, it is possible for ignition failures
to occur, with consequent activation of
signal indicating that the control box has
“locked out”.
– Gas failure
The control box runs through the cycle
normally sending electric power to the
ignition electrode. The electrode conti-
nues spark discharge for a maximum of
10 sec.If the burner does not light, the
lock-out indicator will light up.
This may occur upon first ignition or
after long periods of boiler lay-off when
1
2
3
4
5
12 11 10 9
8
7
6
15
6 10
KEY
1 Ignition electrode earth faston
2 Ignition electrode faston
3 Fuse (1,6 AT)
4 Fuse(0,16 AT)
5 “ANN. RIT.” connector
6 “POT. ACC.” trimmer
7 Conector “MET-GPL”
8 D.H.W. potentiometer
9 Detector electrode faston
10 “POT. RISC.” trimmer
11 C.H. potentiometer
12 Selector CR/OFF/EST/INV/RESET
13 DIP SWITCH
14 Connector “Modureg Sel.”
15 Connector “Albatros”
NOTE: To gain access to trimmers (6) and (10),
unscrew the central heating potentiometer knob.
Fig. 25
15
13
1
3
5
7
8
9 10 11
12
14
6
“25 BFT TS” model
“25 OF C - 30 OF C” models
TABLE 3 (Sensors)
Temperature (°C) Resistance (
Ω
)
20 12.090
30 8.313
40 5.828
50 4.161
60 3.021
70 2.229
80 1.669
TABLA 4 (Transducer)
Pressure Resistance (
Ω
)
(bar) mín máx
0 297 320
0,5 260 269
1 222 228
1,5 195 200
2 167 173
2,5 137 143
3 108 113
3,5 90 94