Unit count control device, unit count control method, and fluid supply system

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EP 2 325 570 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	07.08.2013 Bulletin 2013/32

(43)	Date of publication A2:
	25.05.2011 Bulletin 2011/21

(21)	Application number: 10009569.4

(22)	Date of filing: 14.09.2010

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International Patent Classification (IPC):

F24D 19/10^(2006.01)
F24F 3/06^(2006.01)
F25B 49/02^(2006.01)

F24F 11/00^(2006.01)
F25B 13/00^(2006.01)
F25B 25/00^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
	Designated Extension States:
	BA ME RS

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Priority:

24.11.2009 JP 2009266361

(71)	Applicant: Mitsubishi Electric Corporation
	Tokyo 100-8310 (JP)

(72)	Inventors:
	Matsuzawa, Koji Tokyo 100-8310 (JP) Suzuki, Kazutaka Tokyo 100-8310 (JP) Uehara, Nobuaki Tokyo 100-8310 (JP) Ushijima, Takahiro Tokyo 100-8310 (JP)

(74)	Representative: Gleiter, Hermann
	Pfenning, Meinig & Partner GbR Patent- und Rechtsanwälte Theresienhöhe 13 80339 München 80339 München (DE)

(54)	Unit count control device, unit count control method, and fluid supply system

(57) [Object] In a fluid supply system which includes a plurality of heat pump units having a compressor and which supplies a fluid heated or cooled by the heat pump units to a fluid-using device, to control the operation unit count of heat pump units efficiently without grasping the air-conditioning capacities of the heat pump units.
[Means of Solution] The operation frequency of the compressor provided to a predetermined heat pump unit of the plurality of heat pump units is acquired. Whether or not to operate, other than the predetermined heat pump unit of the plurality of heat pump units, remaining heat pump units is determined depending on the operation frequency acquired.

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