Air Balance (www.air-balance.com) introduced its A320 severe weather louvers. According to the manufacturer, the A320 was de-signed to protect against missile impact and severe wind loads, including hurricane-force winds, and it has passed the most stringent tests to date. The A320C has gone one step further by passing Test Protocol PA-100, allowing zero water penetration into the building. Michael Binkholder said the louvers were designed with a unique installation method to further reduce installation time and the amount of building steel required.
Arzel Zoning Technology (www.arzelzoning.com) highlighted its new modulating bypass control for zoning variable-speed systems. This state-of-the-art static control can be set from 0.05 to 0.5 inches water column, and contractors can dial in the static pressure.