The pressure switch must be connected to the silicone tube via the P1 fitting, which is the external one (as shown in the figure).
The electrical connection must be made on contacts 1 and 2, also indicated in the technical manual, corresponding to the terminals arranged in parallel.
Contacts 1 and 2 of the pressure switch must be connected to the control unit.
It is recommended to always have the technical manual on hand during installation or maintenance operations; alternatively, the document is available for download in the reserved area of the website.
Please remember that MORETTI DESIGN products operate under pressure.
Note:
CONTROL UNIT PSYSS04000003 (NG21)
POS. H2
PIN 14 - PIN 15
CONTROL UNIT PSYSL01000263 (MB250)
POS. H2
PIN 13 - PIN 14
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