Method for operating a thermostatically controlled heater/cooler with fresh air intake
US8306669B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Aug 12, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A thermostat-controlled heater/cooler is used to condition air in a temperature-controlled region. A target temperature is obtained and compared to the temperature of the region to determine if heating/cooling is required. If yes, then outside air is directed into the region without operating heater/cooler and updated temperatures of the region are measured. The directing and measuring are continued until (1) the measured temperature equals the target temperature, at which time control returns to the obtaining a target temperature step, or (2) the updated measured temperature differs from the target temperature by a chosen amount, and in some examples, if the updated temperature does not reach the target temperature within a chosen length of time, or the target temperature changes, or the program segment ends, at which time directing outside air into the temperature-controlled region is stopped and the heater/cooler is operated under control of the thermostat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.