2. 1 2
BOILER ELECTRICAL "12-20 T" (fig. 12)
PA (24 VDC)
SE (3,3 VDC)
TA
(24 VDC)
KEY
F
TRA
PI
V
EA
EV1-2
VD
SL
SM
SB
TS
SF
PA
76
SB
(3,3 VDC)
SM
(3,3 VDC)
Fuse (1.6 AT)
Ignition transformer
System pump
Fan
Ignition electrode
Gas valve coil
Deviator valve
Level condenses sensor
Heating sensor
D.H.W. sensor
Safety thermostat
Fumes sensor
Water pressure valve
TS (3,3 VDC)
SL (24 VDC)
TA
Environment thermostat
SE
External sensor (optional)
EXP
Expansion card remote control (optional)
NOTE: Connect TA to the clamps 5-6 after having
removed the bridge.
CONNECTOR SPARE PART CODES:
CN3
code 6316268
CN4
code 6316275
CN5
code 6316253
CN6
code 6316266
CN7
code 6316269
EXP
(24 VDC)
SF (3,3 VDC)
Fig. 12