Saunier Duval SYLVA FF 24 E, Инструкции по обслуживанию

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13
FAULT FINDING
Before trying to operate the boiler make sure that :
●
All gas supply cocks are open and that the gas
supply has been purged of air.
●
The heating system pressure is at least 1 bar.
●
There is a permanent mains supply to the boiler.
●
The fuses on the PCB are intact.
●
The ‘Summer/Winter’ switch is in the heating or
heating and hot water position.
The fault finding charts will enable the majority of
faults to be diagnosed. To use the charts effectively,
it is necessary to determine exactly which aspects
of the boiler are working correctly and which are
not.
For example:
If the domestic hot water works but the heating
doesn’t, refer to
chart No. 1.
If heating works correctly but the hot water doesn’t,
refer to
chart No. 2.
IMPORTANT:
Always adopt a logical, step by step
procedure starting at the beginning of the
appropriate fault finding chart.
WARNING.
Always isolate the boiler from the
electrical supply before carrying out any electrical
replacement work.
Always check for gas soundness after any service
work.
T (
°
C) 0 3 6 9
0 .................... 33242 .................. 28409 .............. 24361 ............. 20958
10 ................... 19947 .................. 17233 .............. 14934 ............. 12979
20 ................... 12394 .................. 10813 ............... 9459 ............... 8297
30 .................... 7947 .................... 6995 ................
6171 ............... 5458
40 .................... 5242 .................... 4651 ................ 4136 ............... 3685
50 .................... 3548 .................... 3171 ................ 2840 ............... 2548
60 .................... 2459 .................... 2212 ................ 1994 ............... 1800
70 .................... 1740 .................... 1580 ................ 1428 ............... 1297
80 ....................
1256 ................... 1143 ................ 1042 ................ 952
90 ..................... 932 ...................... 845 .................. 774 ................. 710
100 .................... 690 ...................... 634 .................. 584 ................. 538
Thermistor values
Example : At 36
°
C
, the thermistor resistance will be
6171
Ω
At 80
°
C
, the thermistor resistance will be
1256
Ω