(19)
(11) EP 2 009 360 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.08.2010 Bulletin 2010/31

(43) Date of publication A2:
31.12.2008 Bulletin 2009/01

(21) Application number: 08158705.7

(22) Date of filing: 20.06.2008
(51) International Patent Classification (IPC): 
F24D 19/10(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 25.06.2007 JP 2007166034

(71) Applicant: Sanden Corporation
Isesaki-shi, Gunma 372-8502 (JP)

(72) Inventor:
  • Ida, Satoshi
    Isesaki-shi Gunma 372-8502 (JP)

(74) Representative: Haley, Stephen 
Gill Jennings & Every LLP Broadgate House 7 Eldon Street
London EC2M 7LH
London EC2M 7LH (GB)

   


(54) Heat pump type hot water supply apparatus


(57) This heat pump type hot water supply apparatus has a hot water storage tank (22) capable of supplying stored hot water to outside of the tank (22), and a heat pump unit (10) for heating hot water in the hot water storage tank (22) to a set-up temperature (31a) set up beforehand. The hot water supply apparatus newly calculates a set-up temperature so that the energy of hot water in the hot water storage tank (22) becomes equal to a unit period consumption energy calculated based on the energy of hot water supplied to outside of the tank (22) for a past predetermined term. Furthermore, the hot water supply apparatus has the display (46) and speaker (47) for outputting newly calculated set-up temperature based on difference between newly calculated temperature and current set-up temperature (31a).







Search report