6
CHARACTERISTIC CURVES FOR PUMP
3
2,5
2
1,5
1
0,5
0
0
0,5
1
1,5
2
2,5
Prevalenza (m
)
Portata (m
3
/h)
PUTTING INTO SERVICE
Proceed as follows to install the recirculation kit.
- Close the cold water inlet ball valve (3) and the hot wa-
ter outlet ball valve (4).
- Unscrew and remove the 3/4” plug (1).
- Install the recirculation accessory. Screw on and fittings
and tighten the watertight fitting.
- Insert temperature sensor S1 in its socket (2) and con-
nect it to the controller as shown in the electric wiring
diagram.
- Fill and pressurise the circuit.
- Check that the circuit is watertight.
- Switch on the DHW mixer.
- Go to the controller menu 6. “Special functions”, and
set recirculation ON in parameter 6.6.1.1.
- Go to the controller menu 4. “Settings”, and in parame-
ter 4.4 set the required recirculation functioning para-
meters. (See the manual supplied with the DHW mixer
for default settings.)
- Check the correct functioning of the system.
1
2
3
4
Flow rate (m
3
/h)
Flo
w r
at
e (m
3
/h)
