wall mounted cast iron, gas fired boiler for central heating ... - Ferroli
wall mounted cast iron, gas fired boiler for central heating ... - Ferroli
wall mounted cast iron, gas fired boiler for central heating ... - Ferroli
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Sigma<br />
1.04 General Layout and Main Components<br />
5<br />
90<br />
28<br />
132<br />
27<br />
19<br />
1 91 16 1<br />
1.05 Boiler water fl ow diagram<br />
Pressure drop mm wg<br />
1 = Sigma 20-40<br />
2 = Sigma 40-60<br />
300<br />
200<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
22 21 7<br />
Pressure loss diagram<br />
.1 .2<br />
10<br />
43<br />
49<br />
34<br />
11<br />
86<br />
121<br />
68<br />
63<br />
24<br />
83<br />
44<br />
151<br />
Fig. 2<br />
Fig. 3<br />
Key<br />
.3 .4 .5 .6 .7 .8 .9 1<br />
2 3<br />
Water flow rate (m 3 /h)<br />
1<br />
2<br />
1 Fixing points<br />
5 Room sealed compartment<br />
7 Inlet <strong>gas</strong>-cock<br />
10 Central <strong>heating</strong> flow outlet<br />
11 Central <strong>heating</strong> return inlet<br />
16 Fan<br />
19 Combustion chamber<br />
21 Gas injector<br />
22 Burner<br />
24 Spark and sensor electrode<br />
27 Cast <strong>iron</strong> heat exchanger<br />
28 Flue collector from heat exchanger<br />
34 Central <strong>heating</strong> flow<br />
temperature sensor<br />
43 Air pressure switch<br />
44 Gas valve<br />
49 Safety overheat thermostat<br />
63 Central <strong>heating</strong> temperature setting<br />
68 Control box with P.C.B.<br />
83 Full sequence automatic control<br />
86 Automatic control reset switch<br />
90 Flue outlet pressure test point<br />
91 Air pressure test point<br />
121 Boiler shut-down warning<br />
132 Flue <strong>gas</strong> deflector<br />
151 Drain tap<br />
Air in<br />
Flue out<br />
C.H.<br />
out<br />
Gas in<br />
<br />
C.H.<br />
in
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