If you cannot immediately locate the , you can perform basic checks:

(pins) around the dial, allowing for a minimum switching interval of 15 minutes Electrical Ratings : 230V AC. : Rated for up to Switch Type : SPDT (Single Pole Double Throw) configuration. Power Reserve

Ensure you have jumpered power over to the Common switching terminal (Terminal 3). The switching contacts are dry and do not output voltage automatically.

is a DIN-rail or panel-mounted digital timer. It allows users to program up to 8 on/off switching pairs per day (or blocks of days) across a 7-day cycle. Its primary purpose is energy management and automation. 7-Day Programming: Individual days or daily blocks. 8 ON/OFF Cycles: Total of 56 combinations per week. LCD Display: For real-time clock and program viewing. Battery Backup: Retains programming during power outages. Manual Override: Allows temporary on/off switching. 2. Diehl 181-5 Programming Instructions (Quick Guide)

Diehl is a diversified German technology enterprise founded in 1902. By the 1950s, they were already developing mechanical timers, leading to later electronic timers. The company now operates in sectors including (the division making these timers), Diehl Metering (smart water meters), and Diehl Defence (defense technology).

Hold the button for approximately three seconds to enter setting mode. Use the + and - buttons to adjust the hour. Press TIME again to toggle to minutes and adjust similarly.

: The device typically features a circular timing disc with captive switching segments. Each segment usually represents a 15-minute interval Operating Modes : Most variants include a three-way manual override switch: I (Permanent ON) : Overrides the program to keep the circuit closed. : Follows the programmed schedule. O (Permanent OFF) : Overrides the program to keep the circuit open. lorentzzi.com Technical Specifications Standard Configuration Current Rating Typically 16 Amps Often 230V AC Designed for DIN rail or panel mounting Power Reserve

The Diehl Multi Timer 181-5 is designed for professional installation. When wiring the device:

Rotate the main circular dial clockwise until the current time aligns with the indicator arrow on the timer face. Note that the dial uses a 24-hour format (e.g., 14:00 for 2:00 PM). Program ON/OFF Cycles:

: 24-hour daily program controlled by a high-precision quartz motor. Switching Mechanism : Features 96 captive segments

16A resistive load / 4A inductive load at 250V AC.

Ensure the downloaded file matches the layout of your specific casing, as Diehl manufactured variations of the 181 series for OEMs like Viessmann, Wolf, and Vaillant.