Urmet 1131 Manual [Bonus Inside]

In many older buildings, you might find wires that are all the same color or just white with a single stripe. In these cases, use a marker or tape to label them immediately upon opening the case. Smart Home Integration (Nuki & Shelly)

Often used for auxiliary functions or additional grounding in specific setups. Pro-Tips for a Successful Install urmet 1131 manual

| Symptom | Likely Cause (per manual) | | :--- | :--- | | No ring, but video works | Handset not programmed, or call code mismatch. | | No video (black screen) | Bus line reversed? (Try swapping L1/L2 – polarity free, but extreme distance may require polarity matching). | | Cannot open door | Incorrect door strike relay wiring at power supply unit (AUX relay not configured). | | Continuous ring | Bus short circuit or duplicate handset address. | In many older buildings, you might find wires

Replacing a handset isn't just about matching numbers; it’s about avoiding common pitfalls. Label Everything: Pro-Tips for a Successful Install | Symptom |

If your 1131 is not functioning correctly after installation, check these common points of failure: Connecting and Replacing Old Intercom with New Urmet 1131

: In most Urmet systems, terminals 6, 10, and 11 are linked to form the common 0V line.