WTL-PR2-00 Johnson Controls Thermostat

Overview

The Johnson Controls WTL-PR2-00 is a digital, wireless pneumatic thermostat from the WTL (Wireless Pneumatic Thermostats LoRa) Series. Designed to retrofit existing legacy pneumatic thermostats, it provides Direct Digital Control (DDC) functionality—such as zone-level temperature management—at a fraction of the time and cost of a full overhaul, without disturbing building occupants. It features a digital display and a white plastic housing with the Johnson Controls logo.

Features

• Retrofits legacy two-pipe pneumatic systems to deliver modern DDC capabilities.
• Eliminates the need for extensive signal wiring runs, making it ideal for fast retrofits and renovations.
• Uses 900 MHz LoRaWAN wireless protocol for long-range communication via Over-The-Air Activation (OTAA).
• Integrates with building automation systems (BAS) like Metasys or Facility Explorer via a required gateway using BACnet/IP.
• Allows users to remotely monitor zone temperature and branch tube pressure, adjust temperature setpoints, and program setbacks.
• Supports energy-saving control strategies, improves indoor comfort, and reduces overall system maintenance costs.

Specifications

• Brand: Johnson Controls
• Model Number: WTL-PR2-00
• Product Type: Digital communicating pneumatic thermostat
• Thermostat Action: Two-pipe reverse acting with deadband
• Adjustable Setpoint Range: 55°F to 85°F (13°C to 29°C)
• Temperature Differential: 32°F to 122°F (0°C to 50°C)
• Maximum Air Pressure: 25 psi
• Throttling Range: Minimum 2 psi, Maximum 4 psi
• Wireless Protocol: 900 MHz LoRaWAN (Operating frequency range: 902 to 928 MHz)
• Number of Channels: 8 channels with 200 kHz spacing
• Display Type: Digital LCD screen
• Power Supply: 3 VDC (Battery Type: TL-5920 included, estimated 2-year battery life)
• Mounting Direction: Vertical wall-mount
• Dimensions: 5-3/5 in. Height x 4-1/10 in. Width x 2-1/10 in. Depth

Applications

• Well-suited for commercial office buildings, schools, universities, hospitals, and other institutional facilities utilizing older construction legacy pneumatic HVAC infrastructure.
• Designed for zone-level control across equipment types including Variable Air Volume (VAV) cooling only, VAV with hot water, hot water radiators, fan coils, induction units (single or dual coil), and Constant Air Volume (CAV) systems with mixing boxes or hot water reheat.