EP0161846A2
Expired / Lapsed
EP
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Environmental monitor and control
Assignee: Kysor Industrial Corp
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Filing: 1985-04-25
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Granted: —
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Expires: 2005-04-25
Abstract
Abstract An environmental control system for a building has several cooling stages and a monitor which includes several test switches (13, 19) for testing the system as well as providing remote and local temperature readings (160). The system includes a dehumdification control in which a logic circuit (180) is coupled to detectors for each of the cooling stages as well as a humidistat (170), and in the event the humidistat provides an output signal indicating humidity has exceeded a predetermined level, the logic circuit provides an output signal for successively adding additional stages of cooling to reduce the humidity.
Inventors
- 👤 Delbert Lynn Carte
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 15:18
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; F; F24; F24F; F24F11/00; F24F11/30; F24F11/49; F24F11/50; F24F11/52; F24F11/523; F24F11/61; F24F11/62; F24F11/63; F24F11/70; F24F11/72; F24F11/74; F24F11/76; F24F11/88; F24F2110/00; F24F2110/10; F24F2110/20
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
122 words
An environmental control system for a building including a multiple stage heating and cooling system with a control (90) therefor and a dehumidification system, characterised by humidity detection means (170) for detecting the humidity of the ambient air in the building and providing a humidity control signal indicating when the humidity is above a predetermined level; means for providing signals representing the operational states of each stage of cooling; and circuit means (180) coupled t o the humidity detection means (170) and the providing means for providing successive output control signals for application to the cooling system control for adding a next stage of cooling when the humidity detection means (170) provides the humidity control signal indicating humidity above a predetermined level.
Claim 2
Dependent Claim
122 words
An environmental control system for a building including a multiple stage heating and cooling system with a control (90) therefor and a dehumidification system, characterised by humidity detection means (170) for detecting the humidity of the ambient air in the building and providing a humidity control signal indicating when the humidity is above a predetermined level; means for providing signals representing the operational states of each stage of cooling; and circuit means (180) coupled t o the humidity detection means (170) and the providing means for providing successive output control signals for application to the cooling system control for adding a next stage of cooling when the humidity detection means (170) provides the humidity control signal indicating humidity above a predetermined level.
Claim 3
Dependent Claim
72 words
A system as claimed in Claim 1 for use with a three stage cooling system and wherein the circuit means provides an output control signal in response to the humidity control signal for activating a second stage (45) of cooling in the event a first stage (44) is operating and for activating a third (46) stage of cooling in the event the first (44) and second (45) stages of cooling are operating.
Claim 4
Dependent Claim
44 words
A system as claimed in Claim 1 or Claim 2 including means (86) for providing a heating reference signal, and means (76) for selectively coupling the heating reference signal to the heating and cooling control (90) for testing the heating operation of the system.
Claim 5
Dependent Claim
46 words
A system as claimed in any one of Claim 1 to 3 including means (88) for providing a cooling reference signal and means (78) for selectively coupling the cooling reference signal to the heating and cooling control (90) for testing the cooling operation of the system.
Claim 6
Independent Claim
62 words
A system as claimed in any one of the preceding claims in which the heating and cooling control (90) includes a plurality of output terminals for application of the output control signals to elements to be controlled and further including at least one test jack having test terminals coupled in parallel with the output terminals for coupling testing equipment to the system.
Claim 7
Dependent Claim
82 words
An environmental control system for a building including a multiple stage heating and cooling system having a control circuit therefore characterised by a plurality of output or input terminals associated with the control (90) for coupling control or status signals from or to the control to or from a plurality of heating and cooling elements, and test jack means (13, 19) having a test terminal coupled in parallel with at least one of the terminals for coupling test equipment to the system.
Claim 8
Dependent Claim
82 words
An environmental control system for a building including a multiple stage heating and cooling system having a control circuit therefore characterised by a plurality of output or input terminals associated with the control (90) for coupling control or status signals from or to the control to or from a plurality of heating and cooling elements, and test jack means (13, 19) having a test terminal coupled in parallel with at least one of the terminals for coupling test equipment to the system.
Claim 9
Dependent Claim
34 words
A system as claimed in Claim 7 in which the test jack includes a plurality of test terminals each uniquely coupled in parallel with a plurality of output or input terminals of the control.
Claim 10
Dependent Claim
76 words
A system as claimed in Claim 7 in which the control (90) includes an input terminal strip (14) (comprising the plurality of input terminals) and an output terminal strip (22) (comprising the plurality of output terminals) and a pair of test jacks with a first jack (13) having test terminals coupled to the input terminals of said input strip and a second jack (19) having test terminals coupled to the output terminals of the output strip.;
Claim 11
Dependent Claim
59 words
An environmental control system for a building including a multiple stage heating and cooling system having a control circuit (90) therefor characterised by means (86, 88) for providing one of a heating or cooling reference signal, and means (76; 78) for selectively coupling the reference signal to the heating and cooling control for testing the operation of the system.
Claim 12
Dependent Claim
59 words
An environmental control system for a building including a multiple stage heating and cooling system having a control circuit (90) therefor characterised by means (86, 88) for providing one of a heating or cooling reference signal, and means (76; 78) for selectively coupling the reference signal to the heating and cooling control for testing the operation of the system.
Claim 13
Dependent Claim
50 words
A system as claimed in Claim 9 and including means (88; 86) for providing the other of the heating or cooling reference signal, and second means (78; 76) for selectively coupling the said other signal to the heating and cooling control (90) for testing the operation status of the system.
Claim 14
Dependent Claim
79 words
An environmental control system for a building including a multiple stage heating and cooling system having a control circuit (90) therefor characterised by means for sensing the temperature of a building in which the control is employed; second means for sensing the temperature at a remote location; and circuit means for selectively coupling the first or second temperature sensing means to a digital display for providing an indication of the temperature sensed by the first or second sensor means.
Claim 15
Dependent Claim
79 words
An environmental control system for a building including a multiple stage heating and cooling system having a control circuit (90) therefor characterised by means for sensing the temperature of a building in which the control is employed; second means for sensing the temperature at a remote location; and circuit means for selectively coupling the first or second temperature sensing means to a digital display for providing an indication of the temperature sensed by the first or second sensor means.
Claim 16
Dependent Claim
68 words
A humidity control circuit for use in a temperature and humidity control system including a humidistat and at least two successively operable humidity-controlling elements, characterised by means for detecting the operational status of each successively-operable humidity controlling elements and circuit means coupled to the humidistat and to the detecting means for actuating the next humidity-controlling element which is not operating unon receipt of a signal from the humidistat.
Claim 17
Dependent Claim
68 words
A humidity control circuit for use in a temperature and humidity control system including a humidistat and at least two successively operable humidity-controlling elements, characterised by means for detecting the operational status of each successively-operable humidity controlling elements and circuit means coupled to the humidistat and to the detecting means for actuating the next humidity-controlling element which is not operating unon receipt of a signal from the humidistat.
References Cited (Backward Citations)
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