Wiring Diagrams - Ferroli OPERA 70 Instrucciones De Uso, Instalación Y Mantenimiento

A Flow rate - m
B m H O
2

4.6 Wiring diagrams

ATTENTION: Remove the jumper on the terminal block before connecting the room thermostat or remote timer
control.
ATTENTION: To connect the 3-way valve (terminals 13 - 14 - 15), refer to the diagrams of fig. 88 and fig. 89.
B
K1
A
fig. 88- Connection of the 3-way valve with 2 wires
B N
C
A
fig. 89- Connection of the 3-way valve with 3 wires
ATTENTION: In case of instability in the reading of
the 0-10V signal by the electronic controller, it is
advisable to connect the signal reference to
ground, and insert a 10K resistor in parallel, as per
fig. 90.
194
1,6
1,4
1,2
1,0
B
0,8
0,6
0,4
0,2
0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
fig. 87 - Pressure loss diagram models 220 and 320
3
/h
L N 95
K1
DHW
L N 348
CH
K2
cod. 3541R963 - Rev. 00 - 09/2021
kW 320
A
OPERA
EN