30
Econcept 50 A
4.2 General view and main components
Key
16
Fan
32
Central heating pump
34
C.h. flow temperature sensor
36
Automatic air vent
44
Combination gas valve
49
Overheat cut-off thermostat
68
Control box with p.c.b.
82
Ionisation electrode
83
Full sequence automatic control
98
Switch
101
Main p.c.b.
114
Low water pressure switch
186
Return temperature sensor
188
Hot surface igniter
191
Exhaust temperature sensor
202
Trasformer 230v-24v
204
PC connector
207
Boiler connector
Fig. 18