Connection Of The Heating Circuit - REMEHA Calenta 25s Installation And Service Manual

4. Installation
30
4.6.2.

Connection of the heating circuit

1. Remove the anti-dust plug located on the heating outlet
connection { under the boiler.
2. Connect the heating water outlet pipe to the heating flow
connection.
3. Install a filling and drainage valve on the installation for filling and
draining the boiler.
T001573-C
4. Remove the anti-dust plug located on the heating return
connection z under the boiler.
5. Connect the heating water return pipe to the heating return
connection.
T001570-B
4
4
CAUTION
4
4
¼ If using thermostatic valves, see chapter: "Connecting the
expansion vessel", page 31
T001633-B
The boiler is factory fitted with a safety valve mounted
on the left hydroblock.
To facilitate maintenance work, we recommend
mounting a shut off valve on the heating flow and
return pipes.
The heating pipe must be mounted in accordance
with prevailing provisions.
If installing shut off valves, position the filling/
drainage valve and the expansion vessel between
the shut off valves and the boiler.
Calenta 25s - 28c - 35s - 40c
040412 - 7600585-01