A method and system for controlling the initiation of a freeze cycle pre-set time in an ice maker

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(11)

EP 2 778 570 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	17.08.2016 Bulletin 2016/33

(43)	Date of publication A2:
	17.09.2014 Bulletin 2014/38

(21)	Application number: 14159225.3

(22)	Date of filing: 12.03.2014

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International Patent Classification (IPC):

F25C 1/04^(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 RS SE SI SK SM TR
	Designated Extension States:
	BA ME

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Priority:

15.03.2013 US 201361793912 P

(71)	Applicant: Manitowoc Foodservice Companies, LLC
	Manitowoc, WI 54220 (US)

(72)	Inventors:
	Daryl Erbs Sheboygan, Wisconsin, 53083 (US) Zhang Lei Hangzhou, Zhejiang 310052 (CN)

(74)	Representative: dompatent von Kreisler Selting Werner - Partnerschaft von Patent- und Rechtsanwälten mbB
	Deichmannhaus am Dom Bahnhofsvorplatz 1 50667 Köln 50667 Köln (DE)

(54)	A method and system for controlling the initiation of a freeze cycle pre-set time in an ice maker

(57) A novel control logic for an individual cube spray type ice machine. The duration of the freeze cycle is able to adapt to changes in inlet water temperature, changes in ambient air temperature, and the impact of warm temperatures of internal ice making parts within the ice machine due to off cycle periods. This is accomplished through a combination of starting a freeze time period only after the water temperature for the volume of water circulating over the evaporator has reached approximately 32°F, and a freeze time period value that is a function of the refrigerant temperature leaving the condenser at the time where the water reaches approximately 32°F.

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