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US 2023/0228433 A1Published application
Air Conditioning System
AssigneeHitachi Global Life Solutions, Inc.
InventorsMitsuru SEKIZAWA, Yuuiti SATO, Kazuhito MATSUZAKI
Life of this patent
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Abstract
An air conditioning system includes a first unit and a second unit. The space above the ceiling of each of a plurality of clean rooms is included in the chamber as a single space common to a plurality of the clean rooms. The first clean room is higher than the second clean room in air cleanliness.
Claims6
An air conditioning system, comprising:
- a first unit including a first fan configured to supply air to a clean room from a chamber including a space above a ceiling of the clean room;
- and
- a second unit including a second fan configured to return the air from the clean room through the chamber,
- wherein the space above the ceiling of each of a plurality of the clean rooms is included in the chamber as a single space common to a plurality of the clean rooms,
- wherein each of a plurality of the clean rooms includes a first clean room in which the second unit is configured to return air from the clean room of interest to the chamber via a duct shaft, and a second clean room in which the air is exhausted from the clean room of interest to outside thereof, without using any duct shaft, and
- wherein the first clean room is higher than the second clean room in air cleanliness.
3 more elements
Dependencies are inferred from the claim text.