1131 Manual Full ((hot)) - Urmet

Carefully remove the old handset. Label each wire with its terminal number (e.g., if a wire is on terminal 1 on the old unit, mark it "1").

Clean and retighten Terminal 6. Ensure that the low-voltage intercom cables are not run inside the same wall conduits as high-voltage 230V mains electricity wiring. Safety and Maintenance Guidelines urmet 1131 manual full

: Matching wires by function (e.g., ground to 6, mic to 2) rather than color, as color codes vary by installation. Pros & Cons Based on User Experiences Carefully remove the old handset

The manual provides a distance table:

Insert a small flathead screwdriver into the retaining clip slot. Gently pry upward to release the plastic latch. ground to 6

Operating an Urmet 1131 is straightforward: