ATE178135T1 - AIR CONDITIONING SYSTEM AND METHOD FOR OPERATIONAL CONTROL - Google Patents

AIR CONDITIONING SYSTEM AND METHOD FOR OPERATIONAL CONTROL

Info

Publication number
ATE178135T1
ATE178135T1 AT94912565T AT94912565T ATE178135T1 AT E178135 T1 ATE178135 T1 AT E178135T1 AT 94912565 T AT94912565 T AT 94912565T AT 94912565 T AT94912565 T AT 94912565T AT E178135 T1 ATE178135 T1 AT E178135T1
Authority
AT
Austria
Prior art keywords
air
room
outdoor
devices
return
Prior art date
Application number
AT94912565T
Other languages
German (de)
Inventor
Seppo Kalevi Kanninen
Seppo Juhani Leskinen
Ingmar Erik Rolin
Original Assignee
Flaekt Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flaekt Oy filed Critical Flaekt Oy
Application granted granted Critical
Publication of ATE178135T1 publication Critical patent/ATE178135T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

A method for controlling the operation of an air-conditioning apparatus comprising devices (1, 2, 3) for supplying outdoor air (A) into a room (4), for removing indoor air (B) from the room, and for returning removed indoor air as return air (C) into the room; and devices (9, 16, 20) for adjusting the amounts of outdoor air, removed air, and return air. The adjusting devices are adjustable for controlling the mixing ratios between the air amounts according to desired air conditions to be created in the room. To achieve a greater controllability of the apparatus and to improve the accuracy of the mixing ratios, the outdoor air (A) and the return air (C) are passed into the room alternately, and the durations of the open periods of the adjusting devices are adjusted so that a desired mixing ratio is achieved between the amounts of outdoor and return air in the room. An air-conditioning apparatus developed for applying the method comprises operating means (22) arranged to open the adjusting devices (9, 20) of an outdoor air duct (5) and a return air duct (19) alternately for the duration of the open periods.
AT94912565T 1993-04-23 1994-04-22 AIR CONDITIONING SYSTEM AND METHOD FOR OPERATIONAL CONTROL ATE178135T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI931848A FI100065B (en) 1993-04-23 1993-04-23 Air conditioning equipment and method for controlling its operation

Publications (1)

Publication Number Publication Date
ATE178135T1 true ATE178135T1 (en) 1999-04-15

Family

ID=8537795

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94912565T ATE178135T1 (en) 1993-04-23 1994-04-22 AIR CONDITIONING SYSTEM AND METHOD FOR OPERATIONAL CONTROL

Country Status (7)

Country Link
EP (1) EP0694150B1 (en)
AT (1) ATE178135T1 (en)
AU (1) AU6506394A (en)
DE (1) DE69417411T2 (en)
DK (1) DK0694150T3 (en)
FI (1) FI100065B (en)
WO (1) WO1994025804A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008085115A1 (en) * 2007-01-11 2008-07-17 Swegon Ab Air conditioning equipment for return air
JP4703692B2 (en) 2008-07-11 2011-06-15 株式会社東芝 Air conditioning control system, air supply switching controller used therefor, and air conditioning control method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224407A (en) * 1938-02-15 1940-12-10 Passur Norman Control means for air circulating systems
US3635282A (en) * 1969-06-05 1972-01-18 New Cosmos Electric Co Air-conditioning device of automatic ventilation type
US4199101A (en) * 1979-01-26 1980-04-22 Johnson Controls, Inc. Multiple load integrated fluid control units
FI78979C (en) * 1988-02-18 1989-10-10 Halton Oy Method for controlling air conditioning and air conditioning device for use in the process.

Also Published As

Publication number Publication date
EP0694150B1 (en) 1999-03-24
DE69417411T2 (en) 1999-08-19
AU6506394A (en) 1994-11-21
DK0694150T3 (en) 1999-10-11
DE69417411D1 (en) 1999-04-29
FI931848A (en) 1994-10-24
FI100065B (en) 1997-09-15
WO1994025804A1 (en) 1994-11-10
FI931848A0 (en) 1993-04-23
EP0694150A1 (en) 1996-01-31

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties