2. 1 2
BOILER ELECTRICAL DIAGRAM
2. 1 2. 1 Murelle EV 25 - 30 OF (fig. 13)
TA2 (24 VRAC)
TA1 (24 VRAC)
ST (5 VDC)
SE (5 VDC)
TS (24 VRAC)
TF (24 VRAC)
SM (5 VDC)
SS (5 VDC)
KEY
F1-2
TRA
Pl
EAR
EV1-2 Gas valve coil
TS
TF
VD
M
SM
SS
TPA
FLM
TA 1
TA 2
ST
CR
Fuse (4 AT)
Ignition transformer
System pump
Ignition/detection electrode
Safety thermostat
Fumes thermostat
Deviator valve
Modulator
Heating sensor
D.H.W sensor
Pressure transducer
D.H.W. flowmeter
Zone 1 environment thermostat
Zone 2 environment thermostat
Solar heat sensor
Remote control CR 73 (optional)
EXP (24 VRAC)
Cod. 6301407D
M (17 VDC)
BIANCO - WHITE
SE
External sensor (optional)
OP
Programming clock (optional)
EXP
Expansion card
VZ
Zone valve
AUX
Auxiliary connection
NOTE: Connect TA1 to the clamps 7-8 after
having removed the bridge.
CONNECTOR SPARE PART CODES:
CN2
code 6316287
CN3
code 6299998
CN6
code 6316202
CN9
code 6316274
CN12
code 6299991
CN13/15 code 6316273
OP (24 VAC)
TPA (5 VDC)
FLM (5 VDC)
Fig. 13
ES
PT
ENG
97