Description: The Tracer® UC400 controller is a programmable, general-purpose BACnet®, microprocessorbased, direct digital controller (DDC). This controller can be installed as a factory or field device. When this controller is factory installed on Trane™ variable-air-volume (VAV) terminal units, the factory downloads the unit with the appropriate VAV programs and configuration settings for the unit. These can include sales-order-specified airflow setpoints. Trane VAV units are made with either pneumatic or microprocessor controls (DDC/VAV). This manual considers only terminal units with BACnet UC400 controller DDC/VAV controls. Factoryinstalled DDC/VAV controls are available with all single duct terminal units, parallel fan-powered, and series fan-powered units. The UC400 controller can be configured with three (3) different application programs: Space Temperature Control (STC) When the UC400 controller is configured for STC, it modulates the VAV damper blade based on the zone temperature, measured airflow, airflow and temperature, and setpoints, to continuously control conditioned air delivery to the space. The volume of monitored incoming air and the damper adjusts to provide accurate airflow control independent of the duct pressure. The damper modulates discharge airflow into the space between operator airflow setpoints depending on space conditions. Additionally, the fan and heat outputs may be energized depending on the application. Ventilation Flow Control (VFC) When the UC400 controller is configured for VFC, it can be applied to a VAV terminal and used to temper cold outdoor air that is brought into a building for ventilation purposes. The tempered air is intended to supply an air handler unit (AHU), which provides comfort control to the zones it is serving. The VAV terminal supplies the correct amount of ventilation air. When reheat is added, it tempers the ventilation air to reduce the load on the air handler by sensing the discharge air temperature of the VAV unit, and controls its long-term average to the discharge air temperature setpoint. Communicated Discharge Air Temperature Setpoint range is between 19°F and 70°F. Flow Tracking Control (FTC) When the UC400 controller is configured for FTC, it works in conjunction with another UC400 configured for STC. The current discharge airflow from the STC controller is communicated to the FTC controller. The FTC controller is then configured to supply a offset (positive or negative) flow relative to the of the other VAV box(es). This is used to provide positive or negative pressure to a contain zone. Warnings, Cautions, and Notices Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.
Price: 500 USD
Location: Syracuse, New York
End Time: 2024-12-23T23:18:42.000Z
Shipping Cost: 0 USD
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Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Brand: Trane
