28
UK
WIRING
WARNING
- Do not invert the neutral with the phase.
- Make the connection to an effi cient earthing system.
- The electrical power line to the burner must be fi tted with an omnipolar switch with an ope
-
ning 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 regulations in force.
NOTE:
Always make sure that no more than two wires are connected to each terminal.
Key
CO
Hour-meter (possible)
F
Fuse
FCA
Auxiliary Circuit Fuse
FR
Photoresistance
IG
Main switch
Ima
On/Off Switch
ImM
Min.-Max working
control switch
LS
Lock-out warning light
(possible)
MA
Control box terminal
board
MB
Burner motor
MS
Servomotor terminal
board
PB
Burner connector
SC
Plug
TA-TC
Boiler environment
thermostat
TMF
2° Flame Modulation
Thermostat (optional)
TR
Ignition transformer
TS
Safety thermostat
VE1
1st stage solenoid valve
VE2
2nd stage solenoid valve
2
MA
2 2 3 4 5 6 7 8 9 10 11 12
31
1
MS
FR
VE2
VE1
TR
MB
LS
CO
B4
T2
T1
L1
S3
N
H
Z
L
IG
F
TS
Ima
N
TC-TA
N
N
M
PB
SC
5 6 7 8 9
3 4
1 2
1 8 N 7 2
5 6
4 3
1
Tmf
2
3
FCA
ImM
