Overview

A glossary has been provided to assist the reader in understanding distinctive terms and phrases. These terms and phrases appear in italics.

Trane's Digital Control System, AdaptAire, is designed to give the user the ultimate in unit performance and operational flexibility, adaptability, and reliability in a user-friendly package. The AdaptAire DDC system is a standard component on Trane heating and cooling units. Non-recirculating units, equipped with the AdaptAire system, do not have return air capabilities, and all functions related to recirculating units are not relevant. Where a function is similar but different between recirculating and non-recirculating units, the function is explained separately.

AdaptAire accepts single or multiple units on the system network. Each unit can be provided with a local user interface. The operating parameters for individual units may be input through the local interface. A PC may also be connected to the network. This allows the user to configure each unit separately, or all units can be configured simultaneously. A controls contractor can provide assistance in networking.

Operational modes include time scheduling, filter monitoring, and multiple damper control and temperature control schemes. All of these modes provide the maximum in unit operational flexibility.

The optional airflow station imparts unparalleled adaptability into the operation of each unit. A daily self-calibration enables AdaptAire to detect the total air volume and the exact ratio of outside and return air entering the unit. Then AdaptAire daily fine-tunes the unit's operation based on these new parameters. Air volume can vary because of changes in static pressure conditions due to loading filters, VAV boxes, and building dynamics. These varying conditions influence the ventilation air provided by the unit. On certain models of recirculating direct-fired heaters this impacts the allowable equivalent temperature rise of the unit that is allowed under the latest ANSI standard for direct-fired heaters.

AdaptAire diagnostic capabilities insure swift response to abnormal unit conditions. A fault is generated anytime the operational parameters and actual unit operation are at odds. An indication of trouble is displayed at the local user interface and system PC in text format. In the Diagnostics section of this manual is a list of all faults and possible causes and solutions.

All of the features of the AdaptAire system are designed to provide the user with real time information. At any time the user can display all of the operational parameters, make changes, if necessary, and observe the various temperature, pressure, and damper readings. The system's diagnostic capabilities provide the user with up to the minute status reporting. (BACview service module or WebCTRL internet connection is required for these features.)

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