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3.2
ELECTRICAL SYSTEM
PRE-HEATER CONNECTION
PROBE TO ELECTRONIC
THERMOSTAT
CR
Resistor contact maker
CO
Commutator
FR
Photoresistence
L1
Lamps for 1
L2
Lamps for 2
L3
Lamps for 3
MB
Burner terminal strip
MV
Fan motor
RMO Control box
S
Pre-heater tank
SM
Air-damper actuator
5845
STAR-TRIANGLE START-UP
(carried out by the factory)
st
stage
nd
stage
rd
stage
COMMUTATOR
D2737
SO
Probe PT100
TA
Ignition transformer
TB
Burner earth
TE
Electronic thermostat
Tm
Minimal thermostat
TM
Maximal thermostat
TP
Timer
V1
Oil valves for 1
V2
Oil valves for 2
V3
Oil valves for 3
VS
Safety valve
6
GB
D2738
st
stage
nd
stage
rd
stage
D2953
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