Overview
The Johnson Controls WTL-PD3-00 is a wireless pneumatic thermostat designed to retrofit existing legacy pneumatic installations, providing Direct Digital Control zone functionality efficiently. It features direct-acting and reverse-acting operation with single setpoint control for both summer and winter modes.
Features
- Wireless retrofitting of conventional pneumatic systems using LoRaWAN technology
- Integrated LCD screen and three-button interface for local configuration and adjustments
- Enables remote monitoring of zone temperature and branch pipe pressure
- Supports standalone operation or wireless integration into building automation systems
Specifications
- System Configuration: 2-pipe system
- Setpoint Range: 55 degrees Fahrenheit to 85 degrees Fahrenheit (13 degrees Celsius to 29 degrees Celsius)
- Maximum Operating Pressure: 25 psi
- Frequency Band: 915 MHz LoRa network band
- Battery Life: Minimum of 2 years
Applications
- Retrofitting commercial legacy pneumatic HVAC systems
- Commercial energy management upgrades through building management system integration
- Zone control for variable air volume cooling, hot water radiators, and fan coils



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