Installation - Controllers
78
UNT-SVX07E-EN
Wireless Comm Interface (WCI)
The Wireless Comm Interface (WCI) enables wireless
communication between system controls, unit controls,
and wireless sensors for the new generation of Trane
control products.The WCI replaces the need for
communication wire in all system applications.
Note:
For more detailed information, refer to:
•
BAS-SVX40A-EN - Wireless Comm Installation,
Operation and Maintenance manual
•
BAS-SVX55A-EN - Wireless Comm Network Design
Best Practices Guide
Quantity of WCIs per Network
Each Trane wireless network can have a total of 31 WCIs
(30 member WCIs plus one coordinator WCI). Each
network requires one WCI to function as network
coordinator.
Quantity of Networks per Tracer SC
A Tracer SC can support up to eight wireless networks.
Automatic Network Formation
When a WCI is connected to a Tracer SC, it is auto-assigned
as the coordinator.To enable the coordinator, Tracer SC
must be configured for wireless communication.The
coordinator WCI opens the network to allow all WCIs
having matching addresses to automatically join the
network. If no Tracer SC is present, a centrally located WCI
must be designated to act as the coordinator.You can
manually set the coordinator WCI so all WCIs having
matching addresses automatically join the network.
Wireless Zone Sensors
The WCI also communicates with Trane wireless zone
sensors, eliminating the need for analog receivers.
Wired Zone Sensors
Systems using WCI can also use wired zone sensors.
Specifications
Operating Temperature: -40 to 158ºF (-40 to 70ºC)
Storage temperature: -40 to 185ºF (-40 to 85°C)
Storage and operating humidity range: 5 percent to 95
percent relative humidity (RH), non-condensing
Voltage: 24 Vac/Vdc nominal ± 10 percent. If using 24 Vac,
polarity must be maintained.
Receiver power consumption: <2.5 VA
Housing material: Polycarbonate/ABS (suitable for
plenum mounting), UV protected, UL 94: 5VA flammability
rating
Mounting: Snaps into sheet metal opening.
Range: Open range: 2,500 ft (762 m) with packet error rate
of 2 percent.
Indoor: Typical range is 200 ft (61 mm); actual range is
dependent on the environment. See BAS-SVX55-EN for
more detail.
Note:
Range values are estimated transmission distances
for satisfactory operation. Actual distance is job
specific and must be determined during site
evaluation. Placement of WCI is critical to proper
system operation. In most general office space
installations, distance is not the limiting factor for
proper signal quality. Signal quality is affected by
walls, barriers, and general clutter. For more
information os available at www.trane.com.
Output power: North America: 100 mW
Radio frequency: 2.4 GHz (IEEE Std 802.15.4-2003
compliant) (2405–2480 MHz, 5 MHz spacing)
Radio channels: 16
Address range: Group 0–8, Network 1–9
Mounting
Fits a standard 2 in. by 4 in. junction box (vertical mount
only). Mounting holes are spaced 3.2 in. (83 mm) apart on
vertical center line. Includes mounting screws for junction
box or wall anchors for sheet-rock walls. Overall
dimensions: 2.9 in. (74 mm) by 4.7 in. (119 mm)
Wireless protocol
ZigBee PRO—ZigBee Building Automation Profile, ANSI/
ASHRAE Standard 135-2008 Addendum q (BACnet™/
ZigBee)
Figure 70.
WCI unit-mounted receiver
