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80
2 .12
BOILER ELECTRICAL DIAGRAM (fig . 13 - fig . 13/a)
EXP
(24 VDC)
FLM
(12 VDC)
M
(17 VDC)
SS
(3,3 VDC)
TF
(24 VDC)
SM1 / SM2
(3,3 VDC)
S.AUX
(3,3 VDC)
SE
(3,3 VDC)
TA
(24 VDC)
PA
(24 VDC)
R59
EV1-2
PI
F
TRA
EAR
Fig . 13
Modello “25 OF”
KEY
F
Fuse (1 .6 AT)
TRA
Ignition transformer
PI
System pump
EAR
Ignition/detection electrode
EV1-2
Gas valve coil
TF
Smoke thermostat
M Modulator
SM1/SM2
Heating sensor
FLM
D .H .W . flow meter
SS
D .H .W . sensor
PA
Water pressure valve
TA
Environment thermostat
SE
External sensor (optional)
S .AUX
Auxiliary sensor
EXP
Expansion card remote control (optional)
NOTE: Connect TA to the clamps 5-6 after having remo-
ved the bridge .
CONNECTOR SPARE PART CODES:
CN4
code 6316256
CN5
code 6316253
CN6
code 6316255
Summary of Contents for GG BT 25 BF
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