WTL-PR1-00 Johnson Controls Thermostat

Overview

The Johnson Controls WTL-PR1-00 is a wireless pneumatic room thermostat from the WTL (Wireless Pneumatic Thermostats LoRa) Series designed for 2-pipe, reverse-acting (RA) HVAC systems. It retrofits existing pneumatic thermostats to provide Direct Digital Control (DDC) single-zone functionality at a fraction of the time and cost, bridging the gap between legacy pneumatic infrastructure and modern wireless building automation systems without disturbing occupants.

Features

• Wireless communication using 900/915 MHz LoRaWAN protocol with 128-bit dual-layer encryption
• Retrofits legacy systems without the need for new control wiring
• Enables remote monitoring of zone temperature and branch pressure, remote control of setpoints, and setback programming
• Integrates with Building Automation Systems (BAS) via BACnet/IP through a gateway
• Single setpoint control with standalone, gateway, and BAS operational modes
• Modern design featuring a white plastic cover with the Johnson Controls logo

Specifications

• Action: Reverse acting
• Number of Pipes: 2-pipe pneumatic connection
• Adjustable Setpoint Range: 55°F to 85°F (13°C to 29°C)
• Maximum Operating Pipe Pressure: 25 psi (170 kPa)
• Air Connections: 3/32 in. (2.5 mm) ID tube fittings
• Air Consumption: 0.011 SCFM (31.1 scim at 16 psig)
• Battery Type: TL-5920 battery (included)
• Dimensions: 4.1 in. Width x 5.6 in. Height x 2.1 in. Depth
• Weight: 0.3 lbs
• Mounting: Vertical

Applications

Ideal for multi-zone commercial environments like offices, hotels, and healthcare facilities where existing pneumatic systems are preserved while adding wireless control. It controls equipment including:

• Variable air volume (VAV) cooling only or VAV with hot water
• Constant air volume (CAV) with mixing box or hot water reheat
• Hot water radiators and fan coils
• Single or dual-coil induction units