In a few cases, as we brazed the joint on the water side of the desuperheater, the technician may have overheated the coax manufacturer’s braze joint. Any Compass (GXT) or Revolution (HXT) series units with a serial number before M10060414 are suspect for a potential leak; units manufactured after this serial number include a change in the brazing process, which will avoid future leaks due to the factory braze joint.

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