29
SYS 10-23
4.2 Overall view and main components
fi g. 26
11
7
44
14
10
20
21
22
82
81
49
28
5
29 187
43
56
16
27
50
19
26
36
32
63
129
145
188
51
133
Key
5
Room sealed compartment
7
Gas inlet
10
Central heating flow
11
Central heating return
14
Safety valve
16
Fan
19
Combustion chamber
20
Burner assembly
21
Main injector
22
Burner
26
Combustion chamber insulation
27
Copper heat exchanger
28
Flue collector from heat
exchanger
29
Internal flue exit
32
Central heating pump
36
Automatic air vent valve
43
Air pressure switch
44
Gas valve
49
Safety overheat thermostat
50
Central heating flow limit
thermostat
51
Central heating frost thermostat
56
Expansion vessel
63
CH boiler thermostat
81
Ignition electrode
82
Sensor electrode
129
Reset knob with lamp
133
Pump overrun thermostat
145
Central heating pressure gauge
187
Flue restrictor
188
ON/OFF switch
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: ......
