Johnson Controls WRZ-SST-120 User manual

WRZ-SST-120 Wireless Sensing System Tool Installation Guide 1
Refer to the QuickLIT Web site for the most up-to-date version of this document.
Applications
The WRZ-SST-120 Wireless Sensing System Tool is
a lightweight, portable, wireless receiver designed to
receive wireless Radio Frequency (RF) data
transmissions from Johnson Controls® WRZ Series
Wireless Room Sensors in One-to-One sensing
system site survey applications. The WRZ-SST-120
Tool can also serve as an RF signal tester or site
survey tool prior to installing a ZFR1810 or ZFR1820
Pro Series Wireless Field Bus System.
Use the WRZ-SST-120 Tool prior to installation, to
verify the optimum locations for WRZ Series Sensors
and the WRZ-7860-0 Receiver in One-to-One wireless
room sensing systems; or for Johnson Controls
ZFR18xx Routers (ZFR or ZFR Pro Series
Coordinators, Routers, Repeaters), and WRZ Series
Sensors in wireless field bus applications.
North American Emissions Compliance
United States
This equipment has been tested and found to
comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference when this equipment is
operated in a commercial environment. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area is
likely to cause harmful interference, in which case
the user will be required to correct the interference
at his/her own expense.
RF Transmitters: 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.
WRZ-SST-120 Wireless Sensing System Tool
Installation Guide
WRZ-SST-120
Part No. 24-10563-55, Rev. D
Issued March 2019
*241056355D*
24-10563-55, Rev. D
(barcode for factory use only)

WRZ-SST-120 Wireless Sensing System Tool Installation Guide2
Canada Installation
Transport the WRZ-SST-120 Wireless Sensing System
Tool in the original container to minimize vibration and
shock damage to the receiver.
Verify that all the parts shipped with the receiver:
• one WRZ-7860-0 Receiver with two magnets
attached
• one battery pack with two magnets attached
• two AA alkaline batteries
• one installation instructions sheet
Do not drop the receiver or subject it to physical shock.
This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la Classe (A) respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
RF Transmitters: Industry Canada Statements
The term IC before the certification/registration
number only signifies that the Industry Canada
technical specifications were met.
This device has been designed to operate with an
antenna having a maximum gain of 2 dB. Antenna
having a higher gain is strictly prohibited per
regulations of Industry Canada. The required
antenna impedance is 50 ohms.
To reduce potential radio interference to other users,
the antenna type and its gain should be so chosen
that the Equivalent Isotropically Radiated Power
(EIRP) is not more than that required for successful
communication.
Le terme « IC » précédant le numéro d'accréditation/
inscription signifie simplement que le produit est
conforme aux spécifications techniques d'Industry
Canada.
Cet appareil a été conçu pour fonctionner avec une
antenne d'un gain maximum de 2 dBi. En application
des réglementations d'Industry Canada, l'utilisation
d'une antenne de gain supérieur est strictement
interdite. L'impédance d'antenne requise est de
50 ohms.
Pour réduire les interférences radio potentielles
avec les dispositifs d'autres utilisateurs, le type
d'antenne et son gain doivent être choisis de façon à
ce que la Puissance Isotrope Rayonnée Équivalente
(PIRE) ne soit pas supérieure à la puissance
nécessaire pour une bonne communication.

WRZ-SST-120 Wireless Sensing System Tool Installation Guide 3
Detailed Procedure
Note: Check that the power switches on the
WRZ-7860-0 Receiver and WRZ Series Sensor are set
to OFF before proceeding.
1. Set the TRANSMITTER ID and AREA DIP
switches on the WRZ-7860-0 Receiver and the
WRZ Series Sensor to the same address. Refer to
the WRZ Series One-to-One Wireless Room
Sensing System Technical Bulletin (LIT-12011641)
for more details.
2. Install the batteries into the battery pack.
3. Connect the battery pack wire harness to the
two-pin connector located under the
TRANSMITTER ID DIP switches on the back of
the WRZ-7860-0 Receiver.
Note: Connecting the battery pack to the receiver
transforms the WRZ-7860-0 Receiver into the
WRZ-SST-120 Tool.
4. Turn the WRZ-SST-120 battery pack power switch
to ON.
5. Turn the WRZ Sensor power switch to ON.
6. For a One-to-One wireless room sensing system,
place the WRZ-SST-120 Tool in the area where the
WRZ-7860-0 Receiver would be located, and place
the WRZ Series Sensor in the area where you
intend to mount the sensor.
Notes:
• If a ZFR or ZFR Pro Series Router is used as a
Repeater in the final installation to extend the
operating range, place the WRZ-SST-120 Tool in
the location where the Repeater is to be located.
Use the WRZ Series Sensor to verify the intended
sensor location, then use the WRZ Series Sensor
to stimulate and verify the intended WRZ-7860-0
Receiver location.
• A ZFR182x Pro Wireless Field Bus Router
cannot be used as a Repeater in a WRZ-7860
application.
For a ZFR or ZFR Pro Series Wireless Field Bus
System, place the WRZ Series Sensor in the
desired location for a ZFR or ZFR Pro Router, and
place the WRZ-SST-120 Tool in the desired
location for a Router or Coordinator.
7. Turn on the power switch of the test WRZ Series
Sensor and allow it to establish communication
with the WRZ-SST-120 Tool. When communication
is established, the RF signal strength
Light-Emitting Diode (LED) on the WRZ-SST-120
Tool blinks.
Five seconds after the power is applied, the red
LED on the WRZ Series Sensor flashes to indicate
the firmware revision. For example, firmware
revision 3 is indicated by the LED flashing three
times during the startup process.
If communication is not established within
15 seconds, press the manual occupancy override
button on the WRZ Series Sensor to force another
communication attempt.
8. Once the WRZ Series Sensor establishes
communication with the WRZ-SST-120 Tool,
press the manual occupancy override button for
5 seconds and release to force the sensor into
Rapid Transmit Mode (RTM).
IMPORTANT: If there are other wireless mesh
networks or One-to-One wireless room sensing
systems in the area, ensure that the PAN OFFSET
address of the WRZ-7860-0 Receiver and
WRZ Series Sensor (set by the TRANSMITTER ID
and AREA DIP Switches) is different from the PAN
OFFSET address of those wireless mesh networks
or One-to-One wireless room sensing systems.
BATT
TRANSMITTER
I.D.
AREA
ON
ON
1
1
2
2
4
4
8
8
16
32
64
128
RJ-12 Port for SA Bus Connection
FIG:wrz_7850_bck_vw
Figure 1: TRANSMITTER ID and AREA DP
Switch Blocks on a WRZ-7860-0 Receiver

WRZ-SST-120 Wireless Sensing System Tool Installation Guide4
9. Hold the WRZ-SST-120 Tool in the desired location
and record the number of times the RF signal
strength LED blinks over the course of 10 seconds.
If the RF signal strength is less than Good, move
the location of either device until an Excellent or
Good RF signal strength is indicated.
Move on to the next location, and repeat Steps 1
through 8 as necessary.
10. When testing is finished, turn off the battery switch
on the WRZ-SST-120 Tool and turn off the power
switch on the test WRZ Series Sensor.
Operation
Wireless Signal Strength
The RF signal strength LED indicates the strength of
the RF wireless signal between the sensor and its
associated sensing system receiver, expressed as
Excellent, Good, or Weak. The WRZ-SST-120 Tool has
an RF signal strength LED that blinks off one, two, or
three times for every RF transmission to indicate the
RF signal strength between the sensor and the tool, or
the router/coordinator and the tool. See Table 1.
Rapid Transmit Mode (RTM) and RF Signal
Strength LEDs
Normally, a WRZ sensor transmits every 60 or 120
seconds; however, pressing and holding the manual
occupancy override button on the WRZ Series Sensor
for 5 seconds and then releasing it forces the sensor
into RTM. In RTM, a WRZ Series Sensor sends an RF
data transmission once every 10 seconds. The sensor
remains in RTM for up to a total of 30 RF
transmissions. After each RF transmission, the RF
signal strength LED of the sensor flashes (LED off to
on) to indicate the RF signal strength between the
sensor and WRZ-SST-120 Tool. The WRZ-SST-120
Tool blinks (LED on to off) to indicate the wireless RF
signal strength.
Table 1: Wireless RF Signal Strength
Number of LED Blinks RF Signal Strength
3Excellent
2Good
1Weak
0None

WRZ-SST-120 Wireless Sensing System Tool Installation Guide 5
Troubleshooting
See Table 2 for a list of documents containing
additional information on products and systems related
to the WRZ-SST-120 Wireless Sensing System Tool.
Repair Information
If the WRZ-SST-120 Wireless Sensing System Tool
fails to operate within its specifications, replace the
unit. For a replacement WRZ-SST-120 Tool, contact
the nearest Johnson Controls representative.
Two AA alkaline batteries are supplied with the
WRZ-SST-120 Wireless Sensing System Tool. Replace
the batteries with high-quality AA alkaline batteries as
necessary, ensuring that the batteries are installed in
the proper polarity. Both batteries should be replaced at
the same time.
Note: Batteries removed from this device must be
recycled or disposed of in accordance with local,
national, and regional regulations. Only certified
technicians or qualified building maintenance
personnel should service Johnson Controls products.
Lithium batteries with a maximum cell voltage of
1.5 volts can be substituted to extend the period
between battery replacement. Do not mix lithium and
alkaline batteries in this device.
Table 2: Related Documentation
For Information On Refer to Document Document Number
Locating, Mounting, and Wiring
WRZ Series Sensors WRZ Series Wireless Room Sensors Installation Instructions Part No. 24-10332-2
Locating, Mounting, and Wiring the
WRZ-7860-0 Receiver WRZ-7860-0 Receiver for One-to-One Wireless Room Sensing Systems
Installation Instructions
Part No. 24-10563-47
Applications and Features and
Benefits of the WRZ Series Sensors WRZ Series Wireless Room Sensors Product Bulletin LIT-12011653
Applications and Features and
Benefits of the WRZ-7860-0 Receiver WRZ-7860-0 Receiver for One-to-One Wireless Room Sensing Systems
Product Bulletin
LIT-12011640
Locating, Mounting, and Wiring
ZFR1811 Routers ZFR1811 Wireless Field Bus Router Installation Instructions Part No. 24-10325-10
Locating, Mounting, and Wiring
ZFR1810 Coordinators ZFR1810 Wireless Field Bus Coordinator Installation Instructions Part No. 24-10325-2
Applications and Features and
Benefits of the ZFR1800 Series
Wireless Field Bus System
ZFR1800 Series Wireless Field Bus
System Product Bulletin LIT-12011336
Locating, Mounting, and Wiring ZFR
Pro Routers ZFR1821/ZFR1822 Pro Wireless Router Installation Instructions Part No. 24-10325-126
Locating, Mounting, and Wiring ZFR
Pro Coordinators ZFR1820/ZFR1823 Pro Wireless Field Bus Coordinator Installation Instructions Part No. 24-10325-96
Locating, Mounting, and Wiring
Wireless Network Coordinator
Gateways
WNC1800 Wireless Network
Coordinator Gateway Installation
Instructions
Part No. 24-10737-91
Locating and Estimating the
Required Number of Devices for a
Wireless System
WNC1800/ZFR182x Pro Series
Wireless Field Bus System Technical
Bulletin
LIT-12012356
ZFR1800 Series Wireless Field Bus
System Technical Bulletin LIT-12011295
WRZ Series One-to-One Wireless
Room Sensing System Technical
Bulletin
LIT-12011641

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WRZ-SST-120 Wireless Sensing System Tool Installation Guide6
Metasys® and Johnson Controls® are registered trademarks of Johnson Controls.
All other marks herein are the marks of their respective owners. © 2019 Johnson Controls.
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