Siemens DB-X3RS, P/ Detector Base W/Relay P/N : 500-083248

Siemens DB-X3RS, P/ Detector Base W/Relay P/N : 500-083248.

Although no specific spacings are allocated to these detectors, maximum 30 foot center spacing (900 sq ft) from NFPA Standard 72 Chapter 5 and CAN/ULC-S524 may be used, if practical, as a guide or starting point in a detector installation layout. This spacing, however, is based on ideal conditions – smooth ceiling, no air movement, and no physical obstructions.

In all installations (except in special circumstances, such as in computer room under floors), locate the detector on the ceiling, a minimum of 12 inches from a sidewall, or on a wall, between 4 and 6 inches from the ceiling. Should questions arise regarding detector placement, follow the drawings provided or approved by Siemens Industry, Inc. or by its authorized distributors. Besides, this is extremely important!

Environmental factors such as air currents, temperature, humidity, pressure, and the nature of the fire load are carefully considered. Also, special consideration is given to room or area configuration and the type ceiling (sloped or flat, smooth or beamed).

          Mounting-using the Siemens DB-X3RS

1.  Route all wires outward from outlet box.
2. When the ALARM LED viewing is critical, position the LED mark in the
   base in the intended direction.
3.  Remove the jumper installed between terminals 1a and 1b.
4. Mount the base to the outlet box and route the wires through the hole in the center of the base. Make connections directly to the base terminals.
5. To insure proper installation of the detector head into the base:

• Properly dress all wires.
• Position all wires flat against the base.
• Take up all slack in the outlet box.
• Route wires away from connector terminals.