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22
2.3
WIRING DIAGRAM
VPC
VCE
RS
230V/50Hz
M1
M2
24 Vdc
N
F
F
F
F
+
–
–
–
–
SA
ARC
FR
PM1
MP
PA
TS
SP
TA
VPC
Main combustion valve
VCE
External cochlea fan
RS Resistance
PM1
External cochlea button
TE
External thermostat
SA
Water probe
FR Photoresistance
M1
External cochlea
M2
Internal cochlea
ARC
Compressed air
MP
Door micro switch
PA
Air pressure switch
TS
Safety thermostat
SP
Seven-pin plug
TA
Room thermostat
Fig. 17