Electronic thermostat with selectable mode to control heating only, cooling only or both heating and cooling
Patent
·
OSTI ID:6145798
This patent describes a thermostat for use in a building having means for cooling the building and means for heating the building, the thermostat being connected to the cooling means and the heating means and operative to generate an energizing signal for only one of the heating means or cooling means at a given time, the thermostat comprising: means for measuring the ambient temperature within the building; manual data entry means; means for storing a program of desired heating temperatures over a repetitive time cycle, programmed by the manual data entry means; a clock operative to generate time signals within the repetitive time cycle; means for generating a signal representative of a desired heating temperature and a desired cooling temperature at the present time based upon the signals from the clock in the stored temperature program; means for placing the thermostat in either a first mode where control signals are generated only for the heating means as a function of the difference between the measured temperature within the building and the desired heating temperature signal. Control signals are generated for either the heating means or the cooling means based upon the measured temperature and the respective desired heating and cooling temperature signals.
- Assignee:
- Honeywell, Inc., Minneapolis, MN
- Patent Number(s):
- US 4683939
- OSTI ID:
- 6145798
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
AIR CONDITIONING
AMBIENT TEMPERATURE
BUILDINGS
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
COOLING SYSTEMS
DATA ACQUISITION SYSTEMS
ENERGY SYSTEMS
EQUIPMENT
HEATING
HEATING SYSTEMS
MEMORY DEVICES
SIGNALS
SPACE HEATING
TEMPERATURE MEASUREMENT
THERMOSTATS
TIME DEPENDENCE
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
AIR CONDITIONING
AMBIENT TEMPERATURE
BUILDINGS
COMPUTERIZED CONTROL SYSTEMS
CONTROL EQUIPMENT
CONTROL SYSTEMS
COOLING SYSTEMS
DATA ACQUISITION SYSTEMS
ENERGY SYSTEMS
EQUIPMENT
HEATING
HEATING SYSTEMS
MEMORY DEVICES
SIGNALS
SPACE HEATING
TEMPERATURE MEASUREMENT
THERMOSTATS
TIME DEPENDENCE