WIRING DIAGRAMS
WIRING DIAGRAMS EM 35- E
The connections to be carried out by the installer are:
- Main supply line
- Thermostat line
- Lock-out warning light (where applicable)
- Hour counter (where applicable)
- Flame modulation thermostat (where applicable) (remove the jumper wire)
A
B
B4
S3
PGm
T2
T1
N
L1
VP
VS
C
D
L1
N
T1
T2
S3
B4
Legend
EC
Control electrode
F
Fuse
FA
Anti-interference filter
FCA
Auxiliary circuit fuse
IG
Main switch
IMA
ON/OFF switch
NOTE: Always make sure that no more than two wires are connected to each terminal.
Warning:
- Do not invert the neutral with the phase.
- Make the connection to an efficient earthing system.
- The electrical power line to the burner must be fitted with an omnipolar switch with an opening of at least 3 mm between
the contacts.
- The earth connection to the terminal board of the burner must be made with a cable at least 20 mm longer than the phase
and neutral cables.
- Must be workmanlike performed and comply with the local regulations in force.
1
2
2 2 3 4 5 6 7 8
EC
TR
PA
MB
MB
Burner motor
MPE Control box terminal board
PA
Air pressure switch
PGm Minimum gas pressure switch
TC
Boiler thermostat
TR
Ignition transformer
9
10 1112
MPE
IMA
FCA
1 2 3 4
TP
- 34
-
230V/50HZ
TS
L1
N
1
2
3
FA
TS
Safety thermostat
VP
Main safety valve
VS
2nd safety valve
F
IG
L1
N
TC