Locations for wireless products - Facility Explorer - LIT-12013796 - Wireless Device - WRG1830/ZFR183x Pro Series

WRG1830/ZFR183x Pro Series Wireless Field Bus for Facility Explorer Systems Technical Bulletin

Facility Explorer
Product name
WRG1830/ZFR183x Pro Series
Document type
Technical Bulletin
Document number
Revision date

About this task

Typically, Johnson Controls provides approximate wireless locations for installers to follow but it is critical for installers to understand the layout process and required materials so they can suggest alterative mounting solutions determined during installation.


  1. Inspect the building plans floor by floor, section by section on each floor if necessary, and locate the field controllers and the intended locations of all WRZ sensors.
  2. Assume the routers will be located adjacent to their respective controllers.
  3. Highlight all of the obstructions on the building floor plans, such as elevator shafts, metal equipment, equipment rooms, and duct work.
  4. Locate the coordinator near the center of the space. You must locate the coordinator on the same floor or building level as the associated routers. However, you may locate the WRG remotely and wire the coordinator radio (ZFR1831 Router), up to 30 m (100 ft) away.
  5. On your floor plans, draw both a 75 m (250 ft) and a 15 m (50 ft) diameter circle around the coordinator, and each ZFR1831 router and Wireless TEC3000 to help determine the wireless signal range.
    Note: The 15 m circle is the coverage to the WRZ sensor.
  6. Draw 15 m (50 ft) diameter around each WRZ to determine if their wireless sphere intersects with the 15 m (50 ft) circle of a nearby Router, Repeater, or TEC3000.
    Note: The dashed circles in ahx1594216125748.html#ahx1594216125748__fig_sqr_3dk_4nb are WRZ Sensor communication (cannot hop across) and the solid circles are network communication (can hop across).
  7. On the floor plan, if there are 75m (250 ft.) diameter circles that do not overlap with each other, add ZFR Pro Routers (solid circles) to serve as repeaters to fill in the gaps so that every 75m (250 ft.) diameter circle overlaps with at least one other 75m (250 ft.) circle.
    Figure 1. Building floor plan with ZFR Pro System and with circles representing wireless signal range
    Figure 2. Building floor plan with ZFR Pro System and with circles representing wireless signal range