Riello 20083501 Manual page 10

PUTTING INTO SERVICE (WITH A RECIRCULATION KIT)
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.
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