The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2025
Filed:
Apr. 22, 2024
Vertiv Corporation, Westerville, OH (US);
Vertiv Corporation, Westerville, OH (US);
Abstract
A system and method for time-based safe mode operation of a multi-mode chiller device incorporating a freecooling system and a direct refrigeration system (e.g., wherein a fluid loop is circulated between the chiller device and a data center or similarly sensitive environment, from which the chilled water transfers heat before returning to the chiller device) senses ambient air temperatures outside the data center environment and return water (RW) temperatures (e.g., of water returning to the chiller from the environment) and engages the freecooling system based on a difference or delta between ambient and RW temperatures. If either the RW or ambient temperature sensors fail, preventing the freecooling system from engaging automatically, time-based safe mode is engaged wherein the freecooling and direct refrigeration systems are alternately engaged according to configuration time parameters adjustable by a user.