2.8
BOILER ELECTRICAL (fig. 11)
Cod. 6328950
OP
(24 VAC)
RS-485
(24 VAC)
KEY
F1-2.
Fuse.(4.AT)
TRA.
Ignition.transformer
PI.
Pump.high.efficiency
V.
Fan
EA..
Ignition.electrode
ER..
Detection.electrode
EV1-2.
Gas.valve.coil
TS.
Safety.thermostat
SF..
Sensor.fumes
TFU..
Thermal.fuse
SM.
C.H..flow.sensor
SR.
C.H..return.sensor
TPA.
Pressure.transducer
JP1.
Selection.TA2.or.0-10.VDC
For the range 0 ... 10VDC:
- Remove the jumper JP1
- Connect the positive signal at terminal 10 of CN6
- Connect the negative signal at terminal 4 of the CN4.
74
Cod. 6301467
TA1.
Zone.1.environment.thermostat
TA2.
Zone.2.environment.thermostat
SB/SA.
D.H.W..sensor.L..2000.(optional)
CR.
Remote.control.
.
SIME.HOME.(optional)
SE.
External.sensor.(optional)
OP.
Programming.clock.(optional)
AR.
Remote.alarm
VZ.
Zone.valve
AUX.
Auxiliary.connection
RS-485. CASCADE.board
NOTE: Connect TA1 to the clamps 7-8
after having removed the bridge.
SR (5 VDC)
SF (5 VDC)
SM (5 VDC)
TS (24 VDC)
SE (5 VDC)
SB/SA
(5 VDC)
TA1 (24 VRAC)
TA2 (24 VRAC)
CONNECTOR SPARE
PART CODES:
CN1
code.6319162
CN2
code.6319160
CN3
code.6319164
CN4
code.6316203
CN5
code.6316200
CN6
code.6316202
CN7
code.6316204
CN9
code.6316201
CN10
code.6319165
CN12
code.6299991
CN13
code.6319161
CN14
code.6319163
CN18. code.6319147
Fig..11