2. 1 0
BOILER ELECTRICAL "12-20-25-30-35 BFT"
KEY
F1-2
Fuse (4 AT)
TRA
Ignition transformer
PI
System pump
V
Fan
EA
Ignition electrode
ER
Detection electrode
EV1-2 Gas valve coil
TS
Safety thermostat
SF
Exhaust fumes probe
TFU
Thermal fuse
SM
Heating sensor
FL
Water flow meter
VD
Deviator valve
TPA
Pressure transducer
TA1
Zone 1 environment thermostat
TA2
Zone 2 environment thermostat
SB
D.H.W. sensor
CR
Remote control CR73 (optional)
SE
External sensor (optional)
OP
Programming clock (optional)
EXP
Expansion card
AR/PR Recirculation pump control
or remote alarm
VZ
Zone valve
AUX
Auxiliary connection
NOTE: Connect TA1 to the clamps 7-8
after having removed the bridge.
CONNECTOR SPARE PART CODES:
CN1
code 6316212
CN2
code 6316214
CN3
code 6316210
CN4
code 6316203
CN5
code 6316200
CN6
code 6316202
CN7
code 6316204
CN9
code 6316201
CN10
cod. 6316227
CN11
cod. 6316226
CN12
code 6299991
CN13
code 6316212
CN14
code 6316213
Fig. 11
ES
PT
GB
83