Patent · US Active

System and method of freeze protection for a chiller

US11365921B2 · kind B2 · utility

0Cited by

21References

5Claims

0Family size

Assignee

CARRIER CORPORATION · US

Inventors

Tathagata De · Charlotte, US
Alberto Vecchiotti · Berlin, DE

Key dates

Filing date	Sep 18, 2016
Grant date	Jun 21, 2022
Priority date	—
Expiry date	Mar 8, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF25B2700/21175
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A system and method of freeze protection for a chiller including a metering device in flow communication with a condenser, a controller in electrical communication with the metering device, wherein the controller is configured to determine whether the difference between the fluid characteristic of the first liquid and the fluid characteristic of the second liquid is greater than a freezing limit, and enter a freeze protection mode if the difference between the fluid characteristic of the first liquid and the fluid characteristic of the second liquid is greater than the freezing limit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.