Time & Motion: 75F vs Traditional VAV Installation
75F squares off against a traditional building controls solution in this VAV installation video.
Variable Air Volume
75F VAV with Reheat™ reduces install cost, improves energy efficiency, and delivers remote control and diagnostic capabilities to Variable Air Volume (VAV) zone controls systems. Where traditional VAV systems can be costly and inefficient, 75F has encapsulated newer ASHRAE-recommended advanced VAV control sequences. This application modernizes and acknowledges today’s fully modulating RTUs and AHUs. The complete VAV system is wirelessly connected and works out-of-the-box with zero programming required.
Smart VAV with Reheat is a full-stack solution with components that include sensors connecting to the cloud for analysis, a 75F® Central Control Unit™ (CCU) as a supervisor with built-in wall interface, 75F Smart Nodes as terminal equipment controllers, third-party units with actuators or 75F Smart Dampers, and Facilisight, 75F’s building intelligence suite of web and mobile apps for secure remote monitoring and control.
75F’s sensors connect to wireless controllers called Smart Nodes placed in each zone, capturing thousands of data points a minute and millions of data points daily on temperature and humidity throughout the building envelope. Via a 900 MHz wireless mesh network, these controllers upload to the cloud and create a dynamic thermal model of your building. The 75F system anticipates heat loads and predictively and proactively controls the temperature and air volume in each zone.
With 75F’s advanced algorithms and continuous feedback loops, customers can achieve the objectives that ASHRAE Guideline 36 outlines with an out-of-the-box solution for Variable Air Volume/Multi-zone AHU configurations. ASHRAE Guideline 36 and its correlated RPs (1455, 1547, 1587, 1747) provide the mechanical design community with a resource to deliver uniform, high efficiency control sequences for HVAC systems.
75F Smart Node wireless controllers in each terminal unit collect hard-wired sensor data such as zone temperature and humidity that is wirelessly transmitted to the 75F Central Control Unit™ (CCU) for holistic load calculations and central air handler control. In addition to hydronic and electric reheaters, the Smart Node is designed to control damper actuators, parallel fans and series fans from the same device. Airflow temperature sensors deliver entering and discharge temperature data to the Smart Node, and wirelessly to the CCU.
Whether you oversee one or many locations, onsite or remote, 75F VAV with Reheat makes managing your buildings a breeze with the 75F Facilisight® suite of web and mobile apps. Gain insight into your building’s HVAC system. View and adjust air temperatures, check system performance and create custom schedules via the portal or mobile app. Our Global Policy Editor allows you to push updates to multiple locations with one click, making your workflow far more efficient.
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