Basic Initial Design And Deployment Considerations - Honeywell TB7200 Series Wireless Installation & Integration Reference Manual

WIRELESS INSTALLATION & INTEGRATION REFERENCE GUIDE FOR TB7200/TB7300/TB7600 SERIES THERMOSTATS

BASIC INITIAL DESIGN AND DEPLOYMENT CONSIDERATIONS

Proper design considerations need to be addressed prior to any installation of a WEBs-AX controller with a Honeywell wireless
communication card and related wireless thermostats.
• Honeywell recommends using a per floor horizontal architecture vs. a vertical one. Transmitting from one floor to the other
may be possible in certain applications (such as going through stairways), but the design and optimization of the thermostat
antenna is designed for optimal horizontal distance penetration and not a vertical one. As such, be prepared to use AT LEAST
ONE WEBs-AX controller and wireless communication card per floor.
• Please note that radio transmissions CANNOT travel through steel. If floors are constructed with steel joists or other steel
materials it is highly unlikely that the wireless thermostat transmissions will be successful between floors.
Clear line of sight deployment
• To avoid network interference with 802.11 Wi-Fi devices in the 2.4GHz spectrum, Honeywell recommends the use of 802.15.4
channels 15 and 25 ONLY. 802.11 Wi-Fi transmissions overlap and may interfere with other channel selections allowed by
802.15.4 (Channels 11 to 26).
• With clear line of sight deployment (no physical obstacles between 2 communicating thermostats), the maximum distance
between each thermostat is 100 feet (30 meters). See Fig. 1 .
Fig. 1. Line of sight distance between two nodes is a maximum of 100 feet (30 M).
Non-clear line of sight deployment
• The maximum non-clear line of sight distance between thermostats for gypsum wall partitions which may include metal stud
framing is a maximum of 50 feet (15 meters). See Fig. 2.
Fig. 2. Non-clear line of sight distance between two thermostat nodes is a maximum of 50 feet (15 M).
NOTE: LINE OF SIGHT DISTANCE BETWEEN TWO NODES IS A MAXIMUM
OF 100 FEET (30 M).
NOTE: MAXIMUM 50 FEET (15 M) BETWEEN 2 THERMOSTAT NODES.
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