Description
The Turbo Air TTA221AENX is a thin-profile evaporator coil for indoor walk-in refrigeration. This unit cooler uses air defrost and has a listed capacity of 22,106 BTU. Its electrical specification is 115V, single-phase, 60 Hz, and the refrigerant specification lists R-448A.
Coil construction and airflow
The fins have a blue anti-corrosion hydrophilic coating. The coil uses internally grooved copper tubing. The tube circuitry is optimized within the coil design.
An EC motor with dual-speed and dual-voltage capability is listed; the specified supply for this model remains 115V. An air-pass guard is included.
Defrost, controls and access
Air defrost is specified for the TTA221AENX. A mounted thermostatic expansion valve (TXV) is included. The unit is described as thermostat- and solenoid-ready; confirm the required control components when ordering.
Dimensions and ordering checks
Overall dimensions are 109 inches wide, 19 inches deep and 9.38 inches high. This model is intended for mounting inside the walk-in. Check the available space, 115V supply and required control configuration before choosing it for an installation or replacement.
The product information identifies UL and cUL certification, along with NSF. The listed warranty is one year for parts. Confirm application compatibility using the complete model number, rather than assuming that similarly named coils have the same valves, controls or electrical requirements.
The available TTA221AENX technical document can be opened from Product Documents. Have your refrigeration professional check capacity and component matching for the project; the listed BTU figure is not, by itself, a recommendation for a particular walk-in room size.

