Beretta EXCLUSIVE C Installer And User Manual page 42

EXCLUSIVE
[EN] - Multiwire wiring diagram
Blu=Blue/Marrone=Brown/Nero=Black/Rosso=Red/Bianco=White/
Viola=Violet/Rosa=Pink/Arancione=Orange/Grigio=Grey/Giallo=Yellow/
Verde=Green
A = Gas valve
B = 230V auxiliary
C = Not used
D = Voltage free contact input
AKM0X Control board
REC Remote control panel
BE20 Board led:
green led (operating or temporary stop)
red led (boiler in lockout)
X1-X25-CN1 Connection connectors
S.W.1 Chimney sweep and interruption of the venting cycle
E.R. Flame detection electrode
F External fuse 3.15A T
F2 Fuse 4A T
M3-M4 Terminal board for external connections: 230V
M20 Electrical box for external connections
(- A B +) Bus 485
TA Room thermostat (contact without voltage)
TBOL Not used
12
11
10
9
8
7
6
5
4
3
2
D
Via Risorgimento 13 - 23900 Lecco (LC) Italy
Caldaia a condensazione
Condensing boiler
D:
Serial N.
230 V ~ 50 Hz W NOx:
IP
Pmw = bar T=
°C
Pms = bar T=
°C
42
13 14
15
16
1
C B A
l/min
Qn Qm
Qn
80-60 °C 80-60 °C
Qn (Hi) = kW
kW
Pn =
kW kW
TBT
SE
OT+
SBOL
X1 - X2 Not used
P Pump
PWM PWM signal
OPE Gas valve operator
V Hv Fan power supply 230 V
C.S.A. Semi-automatic heating system loading
TSC2 Ignition transformer
E.A. Ignition electrode
T.L.A. Water limit thermostat
S.F. Flue gas probe
S.M. Temperature flow sensor on primary circuit
S.R. Temperature return sensor on primary circuit
F.L. Domestic hot water flow switch
S.S. Domestic hot water circuit temperature probe (NTC)
T.P. Pressure transducer
MOD Modulator
V Lv Fan control signal
3V 3-way valve stepper servomotor
[EN] - Water circuit
A Cold water inlet
B
Hot water outlet
C Heating delivery
D Heating return
1 Non-return valve
2 Drain valve
3 Safety valve
4 Automatic by-pass
5
Three-way valve
6 Circulator
7 Lower air vent valve
8
Pressure transducer
17
9 Pressure gauge
10 Expansion vessel
11 NTC return probe
18
12 Primary heat exchanger
13 NTC delivery probe
14 Limit thermostat
1
15
Upper air vent valve
19
16 Air/water separator
17 DHW exchanger
20
18 Domestic hot water NTC probe
1
19 Filling solenoid
20 Filling tap
21 Flow rate limiter
21
22 Flow switch
23 DHW filter
22
23
[EN] -
Domestic hot water function
Heating function
Qn
Nominal heat delivery
Pn Nominal heat output
Qn
Qm Reduced heat delivery
50-30 °C
IP Degree of Protection
kW
Pmw Maximum DHW pressure
kW kW
Pms Maximum heating pressure
T Temperature
D Specific flow rate
NOx NOx class
Low temperature thermostat
Outdoor temperature sensor
Open therm
Not used
Serial number plate
3