The nature of this modification is to blow out the CW coils in the 234-4H Air Handling Unit (AHU) with air. To do this, each individual coil must b…
Office of NEPA Policy and Compliance
July 31, 2019
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The nature of this modification is to blow out the CW coils in the 234-4H Air Handling Unit (AHU) with air. To do this, each individual coil must be isolated, and a blower connected to the return header connection (upper connection), with a drain in the supply header connection (lower connection) to allow water to escape.