Wilo SiFresh Einbau- Und Betriebsanleitung Seite 71

Fig. 8: Open module cover
Installation and operating instructions • Wilo-SiFresh • Ed.02/2023-08
1. Loosen the screws of the module cover.
2. Remove the module cover and carefully put it to one side.
3. Unscrew the required number of screw plugs (M16x1.5) with the tool.
4. Undo the required number of shield clamps (see notice).
5. Screw in the threaded cable gland M16x1.5 and tighten with a torque of 2.5 Nm.
6. Strip communication cables to the required length.
7. Push the nut of the threaded cable gland over the cable and insert the cable into the in-
ner seal ring of the threaded cable gland and under the shield clamp.
8. Spring clips: Open WAGO "Cage Clamp" by pressing it with a screwdriver and guide the
stripped lead into the terminal.
9. Fasten communication cables using shield clamps (see notice).
10. To ensure strain relief, tighten the nut of the threaded cable gland with a torque of
2.5 Nm.
11. Push the module cover forward into the grooves using the guide bars, close cover and
fasten with screws.
NOTICE
• Remove the inner seal ring of the M16x1.5 threaded cable gland when
installing cables with a diameter ≥ 5 mm.
Position the cable shielding on only one end of the cable to prevent circu-
lating current in the event of potential difference via the communication
cable!
To loosen the leads: Open the WAGO "Cage Clamp" spring clip! Then pull
out leads!
External interfaces
The Analogue IN and SBM interfaces are fitted at the factory and cannot be configured.
The SSM is connected via the same junction box where the electrical connection is made. It is
not necessary to open the electronic module to make connections.
• Analogue IN (purple terminal block).
• Digital IN (grey terminal block)
• Bus Wilo Net (green terminal block)
• SSM (red terminal block)
• SBM (orange terminal block)
Fig. 9: Communication interfaces
All communication interfaces in the terminal room (analogue inputs, digital inputs, Bus Wilo
Net, SSM and SBM) comply with the SELV standard.
SSM and SBM can also be operated with/at non-SELV compliant connections/voltage ratings
(up to 250 V AC) without this negatively influencing the SELV compliance of the remaining
communication connections in the terminal room.
Make sure to install cables correctly and ensure separation in the terminal room to maintain
SELV conformity for all other cables.
NOTICE
For cable requirements, see "Requirements" section
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