(19)
(11) EP 2 725 305 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.03.2018 Bulletin 2018/12

(43) Date of publication A2:
30.04.2014 Bulletin 2014/18

(21) Application number: 13189357.0

(22) Date of filing: 18.10.2013
(51) International Patent Classification (IPC): 
F24D 19/10(2006.01)
F24D 19/00(2006.01)
 F25B 47/02(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

(30) Priority: 29.10.2012 JP 2012237624

(71) Applicant: Toshiba Carrier Corporation
Tokyo 108-8580 (JP)

(72) Inventor:
  • Kakuyama, Fushiki
    Fuji-shi, Shizuoka 416-8521 (JP)

(74) Representative: Clarenbach, Carl-Philipp et al
Gleiss Große Schrell und Partner mbB Patentanwälte Rechtsanwälte Leitzstraße 45
70469 Stuttgart
70469 Stuttgart (DE)

   


(54) Hot-Water Supply Apparatus And Control Method Of The Same


(57) According to one embodiment, a hot-water supply apparatus includes a hot-water supply tank (31), a heat-pump type refrigeration cycle, a bypass (24), a circulating pump (27), a refrigerant temperature sensor (26) and a control section (50). The circulating pump (27) circulates water in the supply-water tank (31) after making the water pass through the water heat exchanger (22). The refrigerant temperature sensor (26) detects a temperature of the refrigerant when the refrigerant flows between the water heat exchanger (22) and the open/close valve (23). The control section (50) performs a defrosting operation of defrosting the outdoor heat exchanger (14) by activating a defrosting circuit, and also configured to operate the circulating pump (27) in a case where the temperature detected by the refrigerant temperature sensor (26) lowers to be less than a set value during the defrosting operation.







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