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4.6 Wiring diagram
fig. 35
Key
16
Fan
32
Central heating pump
42
D.h.w. temperature sensor
44
Combination gas valve
62
Time clock (optional)
72
Room thermostat
81
Spark Electrode
82
Ionisation electrode
95
Diverting valve
101 Main p.c.b.
36
FERSYSTEM TECH 38 C
104 Fuse
114 Water pressure switch
136 Flowmeter
138 Outside temperature sensor
139 Room unit
186 Return temperature sensor
191 Flue temperature sensor
202 Transformer 230V-24V
203 230v A/C switched supply
278
Double sensor (Safety + Heating)
Cod. 3540U330 - 09/2009 (Rev. 00)
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