Locations for wireless products - Facility Explorer - LIT-12013796 - Wireless Device - WRG1830 Wireless Field Bus System

WRG1830/ZFR183x Pro Series Wireless Field Bus for Facility Explorer Systems Technical Bulletin
Product
Network and Communications > Wireless Devices > WRG1830 Wireless Field Bus System
Document type
Technical Bulletin
Document number
LIT-12013796
Revision date
18/06/2024

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 alternative mounting solutions determined during installation.

Procedure

  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.
    Figure 1. Building floor plan with ZFR Pro System
  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. Draw a 15 m (50 ft) diameter dashed circle around each WRZ, ZFR router, and TEC3000 to help determine the wireless range of each WRZ sensor. Then verify that each WRZ intersects with at least one ZFR router or TEC. If not, relocate one of the devices if possible or add a ZFR repeater. See Figure 2.
    Note: The 15 m circle represents the smaller range of the lower power WRZ Sensor.
    Note: Do not include the ZFR coordinator because the WRZ cannot connect to the network through the coordinator.
  6. Draw a 75 m (250 ft) diameter solid circle around the ZFR coordinator, each ZFR router, and TEC3000 to help determine the wireless robustness of the mesh. Then verify that each solid circle intersects with at least two other solid circles. If not, then relocate one or more of the devices or add a ZFR repeater to fill in the gaps. See Figure 3.
    Note: Intersecting with two or more other devices is important to provide alternate routes and a stronger, self-healing wireless mesh.
    Figure 2. Building floor plan with ZFR Pro System and with circles representing wireless signal range
    Figure 3. Building floor plan with ZFR Pro System and with circles representing wireless signal range