WRZ-7860-0 Receiver for One-to-One Wireless
Room Sensing Systems Installation Guide
Applications
Use the WRZ-7860-0 Receiver for One-to-One Wireless
Room Sensing Systems to receive wireless Radio
Frequency (RF) temperature and humidity data from WRZ
Series Wireless Room Sensors, and to provide single zone
control data to the specified system digital controllers
in building HVAC systems. The WRZ Series Wireless
Room Sensor and WRZ-7860-0 Receiver combination is
a functional equivalent to a network sensor, such as an
NS-BTP7001-0, but eliminates communications wiring
usually placed inside the wall between the room sensor
and receiver.
Like a network sensor, the WRZ-7860-0 Receiver
communicates over a Sensor Actuator (SA) bus interface
through a MS/TP BACnet
®
protocol with Johnson
Controls
®
Controllers. The receiver supplies the sensed
zone temperature and humidity, temperature setpoint,
and occupancy override data.
In a normal application, one WRZ Series Wireless Room
Sensor reports to one WRZ-7860-0 Receiver; however, up
to five WRZ Series Wireless Room Sensors can associate
with a single WRZ-7860-0 Receiver. In multi-sensor
applications, the receiver passes all the room sensors
data to the controller. Configure the Controller to either
average the room sensors temperature and humidity
input, or select the highest or lowest sensed temperature
and humidity for control of the target zone.
The WRZ-7860-0 Receiver uses direct-sequence, spread-
spectrum RF technology, and operates on the 2.4 GHz
Industrial, Scientific, and Medical (ISM) band. The receiver
meets the IEEE 802.15.4 standard for low power, low duty
cycle RF transmitting systems. A WRZ-7860-0 Receiver
operates as a transceiver, to create a bidirectional
association with a WRZ Series Wireless Room Sensor.
Refer to the
WRZ-7860-0 Receiver for One-to-One Wireless
Room Sensing Systems Technical Bulletin (LIT-12011641)
for
information about how to commission the WRZ-7860-0
Receiver and configure one-to-one wireless room sensing
systems.
Important:
The WRZ-7860 Receiver is intended
to provide an input to equipment under normal
operating conditions. Where failure or malfunction
of the receiver could lead to personal injury or
property damage to the controlled equipment or
other property, additional precautions must be
designed into the control system. Incorporate and
maintain other devices, such as supervisory or alarm
systems or safety or limit controls, intended to warn
of or protect against failure or malfunction of the
WRZ-7860 Receiver.
Important:
Le WRZ-7860 Receiver est destiné à
transmettre des données entrantes à un équipement
dans des conditions normales de fonctionnement.
Lorsqu'une défaillance ou un dysfonctionnement
du receiver risque de provoquer des blessures
ou d'endommager l'équipement contrôlé ou un
autre équipement, la conception du système de
contrôle doit intégrer des dispositifs de protection
supplémentaires. Veiller dans ce cas à intégrer de
façon permanente d'autres dispositifs, tels que
des systèmes de supervision ou d'alarme, ou des
dispositifs de sécurité ou de limitation, ayant une
fonction d'avertissement ou de protection en cas de
défaillance ou de dysfonctionnement du WRZ-7860
Receiver.
North American emissions
compliance
United States
Compliance Statement (Part 15.19)
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received,
including interference that may cause undesired
operation.
Warning (Part 15.21)
Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s
authority to operate the equipment.
Canada
Industry Canada Statement(s)
The term
IC
before the certification/registration number
only signifies that the Industry Canada technical
specifications were met.
Le terme « IC » précédant le numéro d'accréditation/
inscription signifie simplement que le produit est
conforme aux spécifications techniques d'Industry
Canada.
Installation
To install the WRZ-7860-0 Receiver, follow these guidelines:
• Transport the WRZ-7860-0 Receiver in the original
container to avoid vibration and shock damage to the
receiver.
• Verify that all the parts shipped with the receiver.
• Do not drop the receiver or subject it to physical shock.
*241056347G*
Part No. 24-10563-47 Rev. G
2020-07-09
WRZ-7860-0, WRZ-Mx0100-x, WRZ-RMT10K-2, WRZ-
STR0000-2, WRZ-THx100-0, WRZ-TTx100-0
