Dual Power Feature (Optional)
The optional dual power feature provides a separate power connection point for the pumps and controls. If the circuit is connected to an Uninterruptible Power Supply (UPS), the power connection keeps the pumps running to recirculate cooling water in the event of a power failure.
Upon loss of power, all compressors and fans shut down. At the same time, the
On power restoration, the dual power relay opens. The unit returns to cooling mode and stages up compressors as required.
See the electrical schematics included in this packet containing electrical data on the power feeds for the pumps and chiller.
Supplemental Installation Information for APC Chillers | 5 |
