80
2.7.2 DUETTO 25 BF TSE wiring diagram (fig. 9/a)
Fig..9/a
~5 s
~12 s
~12 s
0÷150 s
0÷150 s
2.7.3 SOLO 25 BF TSE / DUETTO 25 BF TSE functional diagram
Consensus.for.start-up
Heater.stat
Heater
Motor
Ignition.transform.
Gas-oil.valve
Flame
Stop.light
Normal
Stopped due to failure to ignite
NOTE: On DUETTO 25 BF TSE without stat, the heater is always fed in winter position.
KEY
F1-2. Fuse.(4.AT)
PI.
C.H..pump
PB.
Tank.pump
TS.
Safety.thermostat
SM.
C.H..sensor
TPA.
Water.pressure.transducer
FLS.
D.H.W..pressure
TA1.
Zone.1.room.thermostat
TA2.
Zone.2.room.thermostat
CR.
Remote.control.CR73.(optional)
OP.
Programming.clock.(optional)
EXP.
Expansion.card
AR.
Remote.alarm
VZ.
Zone.valve
AUX.
Auxiliary.connection
BRU.
Gas-oil.burner
K1-2. Relay
NOTE: Connect TA1 to the clamps 7-8 after having
removed the bridge.
