Air conditioner and method of controlling such
US6962058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2002 |
| Grant date | Nov 8, 2005 |
| Priority date | — |
| Expiry date | Feb 18, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2521
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The object of this invention is to provide an air conditioner with a variable capacity compressor (2) parallely connected to a fixed capacity compressor (4), and a method of controlling the operation of such an air conditioner. When it is required to start the fixed capacity compressor (4) in addition to an operation of the variable capacity compressor (2) due to an increase in the sum of the required cooling capacities of indoor units (9), an outdoor control unit (13) starts the fixed capacity compressor (4) during an unloading mode operation of the variable capacity compressor (2) where the pressure difference between the outlet side and inlet side of the variable capacity compressor is minimized. The fixed capacity compressor (4) is thus smoothly started without causing an induction of excessive starting current, and improves the operational reliability of the air conditioner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.