Johnson Controls WRZ Series Installation Instructions Manual

Johnson Controls WRZ Series Installation Instructions Manual

Wireless room sensors
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WRZ Series Wireless Room Sensors

Installation Instructions

WRZ-THB, WRZ-THJ, WRZ-THN, WRZ-THP, WRZ-TTB,
WRZ-TTD, WRZ-TTJ, WRZ-TTK, WRZ-TTP, WRZ-TTR,
WRZ-TTS
Application
The WRZ Series Wireless Room Sensors are designed to sense room/zone temperature and transmit wireless
temperature control data. Some models also sense and transmit relative humidity.
In a mesh application, the WRZ sensor is compatible with both the ZFR1810 and ZFR1820 Pro Series Wireless
Field Bus Systems. The transmitter communicates with FAC26 Series, FEC16 Series, FEC26 Series, and
VMA16 Series Controllers through the ZFR18xx Router (ZFR or ZFR Pro Series Router). Up to nine WRZ Series
Sensors can be associated with a single Controller.
In wired field bus applications, the sensors communicate with a WRZ-7860 Wireless Receiver. The
WRZ-7860 Receiver transfers data to the controller by means of the Sensor Actuator (SA) communication bus. In a
typical application, one WRZ Series Sensor reports to one WRZ-7860 Receiver, but up to five WRZ Series Sensors
can be associated with a single WRZ-7860 Receiver for multi-sensor averaging or high/low temperature selection.
WRZ Series sensor models are available with or without an LCD. Depending on the sensor model, the WRZ Series
Sensor can transmit sensed temperature, setpoint temperature, sensed humidity, occupancy status, and low
battery conditions to an associated router or receiver. The WRZ Series Sensors are designed for indoor,
intra-building applications only.
The WRZ Sensors use 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.
IMPORTANT: The WRZ Series Sensors are intended to provide an input to equipment under normal operating
conditions. Where failure or malfunction of the sensor 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 sensor.
IMPORTANT : Le WRZ Series Sensors est destiné à transmettre des données entrantes à un équipement dans
des conditions normales de fonctionnement. Lorsqu'une défaillance ou un dysfonctionnement du sensor 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 sensor.
Refer to the
WRZ Series Wireless Room Sensors Installation Instructions
QuickLIT website
for the most up-to-date version of this document.
1
24- 10332- 2, Rev . T
(barcode for factory use only)
Part No. 24-10332-2, Rev. T
Issued June 2017

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Summary of Contents for Johnson Controls WRZ Series

  • Page 1: Installation Instructions

    WRZ-7860 Receiver for multi-sensor averaging or high/low temperature selection. WRZ Series sensor models are available with or without an LCD. Depending on the sensor model, the WRZ Series Sensor can transmit sensed temperature, setpoint temperature, sensed humidity, occupancy status, and low battery conditions to an associated router or receiver.
  • Page 2: North American Emissions Compliance

    Do not attempt to remove or repair the circuit board from the sensor housing. Other than battery replacement, the sensor is not user-serviceable. Parts Included • one WRZ Series Sensor with strips of double-sided adhesive foam tape installed • one DIP switch overlay for a mesh network application using a ZFR or ZFR Pro Series Router •...
  • Page 3: Special Tools Needed

    Dimensions See the following figures for dimensions and physical features of the WRZ Series Sensors. Figure 1: WRZ Series Sensor; LCD with Setpoint Adjustment Buttons Model Shown Physical Features and Dimensions, mm (in.) Tamper Resistant Set Screw Manual Occupancy Override Button...
  • Page 4: Location Considerations

    Mounting The WRZ Series Sensors can be surface mounted using the adhesive tape pieces affixed to the back of the sensors. Location Considerations Temperature Sensor Considerations When locating a WRZ Series Sensor, follow the same best practices used to locate a hard-wired temperature control, sensor, or thermostat: •...
  • Page 5 IMPORTANT: During start up and commissioning or in a power-outage situation, the associated controller may be shut down for extended periods of time. To further conserve on battery life, the WRZ Series Sensor adjusts its rejoin attempt time to much longer periods (6 times every 2 minutes for the first 10 minutes, then once every 30 minutes for 72 hours, and then once per day thereafter).
  • Page 6 Preparing the WRZ Series Sensor for Operation To prepare the WRZ Series Sensor for operation, and to reinstall the sensor housing on its mounting base: 1. Place the appropriate DIP switch overlay (based on the application) over the DIP switches. See the following figures.
  • Page 7 IMPORTANT: Ensure that the PAN OFFSET is the same for each ZFR or ZFR Pro Series Coordinator, ZFR and ZFR Pro Series Router, and WRZ Series Sensor in a mesh network. See Figure 7. WRZ Series Wireless Room Sensors Installation Instructions...
  • Page 8 For a One-to-One network application with a WRZ-7860 Receiver (Figure 5), set the DIP switches as indicated, ensuring that the AREA and TRANSMITTER ID switches on the WRZ-7860 Receiver and the WRZ Series Sensors are set to the same value.
  • Page 9 Press and hold the manual occupancy override button on the WRZ Series Sensor (Figure 1) for 5 seconds or more to place the sensor into Rapid Transmit Mode and initiate a signal strength test with the associated ZFR or ZFR Pro Series Router, or WRZ-7860 Receiver.
  • Page 10: Temperature Setpoint Adjustment/Occupancy Override

    = Excellent Signal Note: For WRZ Series Sensors with an LCD display, the humidity value may appear as 0.0% when the sensor is joining a network. This condition is transitory and does not transfer to the Building Automation System (BAS).
  • Page 11: F/°C Temperature Mode Selection

    WRZ Series Sensor into rapid transmit mode: 1. Press and hold the manual occupancy override (Occ) button on a WRZ Series Sensor for 5 or more seconds. In rapid transmit mode, the sensor transmits once every 10 seconds for 5 minutes, for a total of 30 update messages.
  • Page 12: Repair Information

    Batteries The two AA alkaline batteries supplied with the WRZ Series Sensor typically have a life of 4 years or more. The sensor reports a low battery condition to the receiver or controller, which relays the low battery condition to the Metasys®...
  • Page 13: Technical Specifications

    Technical Specifications WRZ Series Wireless Room Sensors (Part 1 of 2) Product Codes WRZ-THB0000-0: Temperature/Humidity Sensor with Display, Warmer/Cooler (+/-) Setpoint Dial Adjustment or Scaled Setpoint Dial Adjustment: 55 to 85°F (13 to 29°C), °F/°C Button, Relative Humidity (RH) Button, and Manual Occupancy Override Button WRZ-THJ0000-0: Temperature/Humidity Sensor with Display, Setpoint Adjustment Buttons, °F/°C Button, Relative Humidity (RH) Button, and Manual Occupancy Override...
  • Page 14 The performance specifications are nominal and conform to acceptable industry standard. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls shall not be liable for damages resulting from misapplication or misuse of its products.

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