I have (3) 500 ton air cooled york chiller units going in that have single point connections. The chiller package has 4 compressor units (2 units from 2 control sections)with . Both control sections are contained within a single control cabinet and have their own molded case breaker capable of...
I came across a grounding diagram different from what I would normally expect and wanted to get some opinions on the situation. The building's grounding system is shown to be bonded from the MGB (main ground bus) to the pad mount service transformer's ground triad. Under normal operating...
