(19)
(11) EP 3 816 534 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.08.2021 Bulletin 2021/31

(43) Date of publication A2:
05.05.2021 Bulletin 2021/18

(21) Application number: 20203117.5

(22) Date of filing: 21.10.2020
(51) International Patent Classification (IPC): 
F24H 3/06(2006.01)
F24F 5/00(2006.01)
F25B 1/06(2006.01)
 F24F 1/0003(2019.01)
F24H 9/00(2006.01)
F25B 1/08(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
Designated Validation States:
KH MA MD TN

(30) Priority: 28.10.2019 US 201962926768 P

(71) Applicant: Carrier Corporation
Palm Beach Gardens, FL 33418 (US)

(72) Inventors:
  • ELSHERBINI, Abdelrahman
    East Hartford, CT Connecticut 06108 (US)
  • ALAHYARI, Abbas A.
    East Hartford, CT Connecticut 06108 (US)

(74) Representative: Dehns 
St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)

   


(54) THERMALLY ENHANCED HEATING


(57) A thermally enhanced heating system (100) and a method for thermally enhancing a HVAC system are provided. The thermally enhanced heating system (100) preferably includes an outdoor HVAC unit (200) and an indoor HVAC unit (300). The indoor HVAC unit (300) includes a first heat exchanger (310) for transferring heat from a refrigerant, a second heat exchanger (320) for transferring heat from a fuel source, and a third heat exchanger (330) for transferring heat to the refrigerant. The outdoor HVAC unit (200) includes an outdoor heat exchanger (210) for transferring heat from an outdoor air to the refrigerant, a pump (220) configured to circulate the refrigerant, and an ejector (230) configured to combine the refrigerant from the outdoor heat exchanger (210) and the third heat exchanger (330). Preferably the outdoor HVAC unit (220) is operated to circulate the refrigerant through a first refrigerant circuit (500) and a second refrigerant circuit (400), and combine refrigerant in the first refrigerant circuit (500) and the second refrigerant circuit (400).







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