30
SYS 10-23
fi g. 27
4.3 Hydraulic diagram
+
-
43
49
50
56
81
44
32
20
82
5
29-187
16
10
7
11
14
Key
5
Room sealed compartment
7
Gas inlet
10
Central heating flow
11
Central heating return
14
Safety valve
16
Fan
20
Burner assembly
29
Internal flue exit
32
Central heating pump
43
Air pressure switch
44
Gas valve
49
Safety overheat thermostat
50
Central heating flow limit thermostat
56
Expansion vessel
81
Ignition electrode
82
Sensor electrode
187
Flue restrictor
Summary of Contents for SYS 10-23
Page 33: ...33 SYS 10 23 4 6 Internal electrical diagrams fig 30a...
Page 34: ...34 SYS 10 23 fig 30b...
Page 35: ......
