WRZ-TTR0000-2 Johnson Controls Wireless Room Sensor

Overview

The Johnson Controls WRZ-TTR0000-2 is a wireless RF room temperature sensor designed to measure and transmit ambient temperature data to a compatible HVAC control system or receiver. By eliminating the need for complex data communication wiring inside walls, this device simplifies installation in both retrofit upgrades and new construction applications, reducing labor costs and minimizing disruptions to occupied spaces.

Features

• Wireless RF technology enables wire-free temperature sensing and flexible placement.
• Built-in battery level or signal strength LED indicator for easy status monitoring.
• Manual occupancy override button allows occupants to immediately signal a comfort request and wake the sensor from sleep mode.
• Designed without a setpoint dial adjustment for environments requiring fixed or centralized control.
• Bidirectional RF association ensures reliable data transmission and verification with the receiver.

Specifications

• Compatibility: Works with Johnson Controls ZFR and ZFR Pro Series Wireless Field Bus Systems and the WRZ-7860-0 Receiver.
• Operating Frequency: 2.4 GHz Industrial, Scientific, and Medical (ISM) band using spread-spectrum RF technology.
• Transmission Range: Up to 150 feet (45 meters) indoor line-of-sight, with a practical average indoor range of 100 feet (30 meters) considering standard obstructions.
• RF Standard: Compliant with IEEE 802.15.4 standard for low power, low duty cycle systems.
• Temperature Range: Measures ambient room temperatures within a typical indoor comfort span.

Applications

• Commercial and light commercial HVAC multi-zone zoning systems.
• Retrofit building installations where routing sensor wiring through existing walls is impractical or cost-prohibitive.
• Building automation and centralized energy management systems.