Supplemental cooling system load control using random start of first defrost cycle
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United States of America Patent
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Nov 26, 2019
Grant Date -
May 10, 2018
app pub date -
Nov 9, 2016
filing date -
Nov 9, 2016
priority date (Note) -
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Abstract
Methods, apparatus, and systems for load control for cooling systems are provided. Coolant flows through a plurality of cooling units in a cooling system. The coolant flow is halted for each cooling unit that is undergoing a defrost cycle. Each cooling unit is configured to start a first defrost cycle at a random time within a predetermined time range after the cooling unit is started or powered on. After the first random start defrost cycle, a regular periodic defrost cycle may be maintained. Thus, the cooling units may be powered on simultaneously while still providing desynchronized defrost cycles, enabling the cooling system to maintain adequate coolant flow and heat load to avoid deleterious stop and restart cycles.
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