Ferroli OPERA 70 Instrucciones De Uso, Instalación Y Mantenimiento página 156

One direct heating circuit and one DHW circuit with circulating pump
- Schematic diagram
138
- Electrical connections
After installation, carry out the necessary electrical connections as shown in the wiring diagram.
Then configure the controller as described in the specific section.
J2 J1
156
M
R
J3
fig. 41
cod. 3541R963 - Rev. 00 - 09/2021
72
I*
a
306
fig. 40
Legend (fig. 40 and fig. 41)
72 1st zone (direct) room thermostat
130 Hot water tank circulating pump
138 External probe
155 Hot water tank probe
300 Anti-Legionella circulating pump
306 1st zone (direct) circulating pump
a 1st zone (direct)
b Hot water tank circuit
M Flow
R Return
I* ISPESL safety devices (when required - not su-
pplied)
To manage the sliding temperature it is necessary
to purchase the external probe accessory code
013018X0
If a hot water tank probe (not supplied) is used, it
is necessary to purchase the NTC probe acces-
sory code 1KWMA11W (2 mt.) or code 043005X0 (5
mt.)
If a hot water tank thermostat (not supplied) is
used, it is necessary to purchase the accessory kit
code 013017X0 (to be connected in place of the
Hot Water Tank Probe)
OPERA
155
300
b
130
EN