Ariston MGz I Installation Et Mode D'emploi page 20

GB
installation
Connecting the Module and the Boiler
The supplied Clip-In CONTROLLING TWO ZONES
must be used when connecting the module to the
boiler.
The procedures to perform are as follows:
1. shut off the boiler power supply;
2. rotate the control panel after having removed
the front panel;
3. remove the control panel cover to access the
rear part of the panel;
4. position the Clip-In CONTROLLING TWO
ZONES in the relevant slot (fi g. 1);
5. fi x the Clip-In CONTROLLING TWO ZONES in
place by pressing it gently (fi g. 2);
6. connect the communication cable supplied
to the connection edge of the Clip-In
CONTROLLING TWO ZONES (fi g. 3);
7. connect the communication cable to the
connection edge of the electronic P.C.B. in the
boiler (fi g. 4 - 5);
8. remove the front panel of the module;
9. remove the terminal board cover;
10. connect the circulation pump control to the
module terminal board using a pair of wires
with a minimum cross section of ø 1.5 mm
(see electrical diagram);
11. close the terminal board and replace the front
panel of the module;
12. connect the pair of wires for circulation
pump control to the terminals for the Clip-In
CONTROLLING TWO ZONES;
13. replace the cover of the boiler control panel;
14. restore the boiler power supply;
15. operate the boiler in accordance with the
instructions provided in the operating manual.
Important!
The maximum recommended distance for electrical
connection between the module and the boiler is
50 m.
20
2
(fi g. 1)
(fi g. 2)
(fi g. 3)
(fi g. 4)
(fi g. 5)