Johnson Controls WT-4000 Series Pneumatic-to-DDC Room Thermostat 

The WT-4000 Series Pneumatic-to-Direct Digital Control Room Thermostats provide reliable zone comfort and enhanced energy economy via remote monitoring and temperature set point management. This arrangement provides greater energy policy compliance, and facilitates trending of floor space usage in commercial, industrial, and municipal HVAC environments.

Need an Energy saving building upgrade? The WT-4000 series room thermostat is made just for that.  Designed for non-invasive replacement of the existing thermostat WT-4000 series thermostat provides a number of features such as:

• Remote wireless set point control and occupancy scheduling
• Precise room temperature monitoring
• Branch line pressure
• Battery status monitoring.

All of these features were previously unavailable in existing pneumatic HVAC control systems.

The innovative design of the WT-4000 Series Room Thermostats completely reshapes the pneumatic HVAC control industry. The room thermostat does not utilize any mechanical parts. A solid state temperature sensor replaces the bi-metallic strip elements for precise room temperature monitoring. In addition, an advanced piezoelectric air valve replaces the mechanical relay for improved branch line pressure control. The technology in the WT-4000 provide a longer, more dependable, and maintenance–free operation during the lifetime of the thermostat.

Models are available for wireless mesh communications, or they can be configured in the field for stand-alone applications.

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