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FEATURES
• Uses the Echelon® LONWORKS® network protocol.
• Free Topology Transceiver (FTT) high-speed 78 kilobit communications network.
• Capable of stand-alone operation, but can also use LONWORKS® Bus network communications.
• Sylk™ bus for use with Sylk-enabled sensors.
• 120 controllers per Excel 10 Q7751A,B Router when configured as a repeater.
• Field configurable and programmable for control, input, and output functions using the NIAGARA FRAMEWORK® software.
• User-defined network variables.
• Function Block engine, which allows the application designer to program the controller to perform a wide variety of HVAC applications.
• Significant Event Notification, Periodic Update capability, and Failure Detect (FD) when network inputs fail to be detected within their configurable time frame.
• Built-in Zone Control functions include a remote wall module interface and a scheduler.
• Pressure-independent or pressure-dependent single or dual duct Variable Air Volume (VAV) control as well as Unitary equipment control.
• Microbridge air flow sensor with dual integral restrictor design (PVL0000AS, PVL4022AS, PVL4024NS, PVL6436AS, and PVL6438NS only).
• Easy user access to air flow sensor inputs.
• Actuator (PVL0000AS, PVL4022AS, and PVL6436AS only) mounts directly onto VAV box damper shaft and has up to 44 lb-in. (5 Nm) torque, 90-degree stroke, and 90 second timing at 60 Hz.
• All wiring connections are made to removable terminal blocks to simplify controller installation and replacement.
• Both controller housing and actuator are UL plenum rated.

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