EP 3517848 A4 20191009 - MULTI-SPLIT AIR CONDITIONING SYSTEM AND SWITCHING CONTROL METHOD FOR OPERATING MODE OF INDOOR UNITS THEREOF
Title (en)
MULTI-SPLIT AIR CONDITIONING SYSTEM AND SWITCHING CONTROL METHOD FOR OPERATING MODE OF INDOOR UNITS THEREOF
Title (de)
MULTI-SPLIT-KLIMATISIERUNGSSYSTEM UND UMSCHALTSTEUERUNGSVERFAHREN FÜR BETRIEBSMODUS VON INNENRAUMEINHEITEN DAFÜR
Title (fr)
SYSTÈME DE CLIMATISATION À DIVISIONS MULTIPLES ET PROCÉDÉ DE COMMANDE DE COMMUTATION POUR MODE DE FONCTIONNEMENT D'UNITÉS INTÉRIEURES ASSOCIÉES
Publication
Application
Priority
- CN 201610832075 A 20160919
- CN 2016104675 W 20161104
Abstract (en)
[origin: EP3517848A1] A multi-split air conditioning system and a switching control method for an operating mode of indoor units thereof. The method comprises the following steps: when any indoor unit (21, 22, 23, 24) in multiple indoor units (21, 22, 23, 24) receives a mode switching instruction, the indoor unit (21, 22, 23, 24) sends the mode switching instruction to a shunt device (30) (S1); the shunt device (30) performs switching control on a heating control valve or a refrigeration control valve corresponding to the indoor unit (21, 22, 23, 24) according to the received mode switching instruction, releases pressure by controlling a second throttling assembly (34), a first control valve, and a bypass valve in order to reduce a differential pressure across the refrigeration control valve or the heating control valve corresponding to the indoor unit (21, 22, 23, 24), obtains a switching flag bit of a four-way valve, and controls the refrigeration control valve or the heating control valve corresponding to the indoor unit (21, 22, 23, 24) and the four-way valve according to the switching flag bit of the four-way valve (S2).
IPC 8 full level
F24F 11/00 (2018.01); F25B 29/00 (2006.01); F25B 40/00 (2006.01); F25B 41/20 (2021.01)
CPC (source: CN EP US)
F24F 11/30 (2017.12 - US); F24F 11/62 (2017.12 - US); F24F 11/84 (2017.12 - US); F25B 13/00 (2013.01 - CN EP US); F25B 29/003 (2013.01 - EP US); F25B 40/00 (2013.01 - EP US); F25B 41/20 (2021.01 - CN EP US); F25B 49/02 (2013.01 - CN EP US); F24F 11/65 (2017.12 - US); F24F 11/67 (2017.12 - US); F25B 2313/006 (2013.01 - EP US); F25B 2313/0231 (2013.01 - EP US); F25B 2313/0234 (2013.01 - US); F25B 2500/12 (2013.01 - CN EP US); F25B 2600/25 (2013.01 - CN); F25B 2600/2507 (2013.01 - EP US); F25B 2600/2513 (2013.01 - EP US); F25B 2600/2515 (2013.01 - EP US); F25B 2600/2519 (2013.01 - EP US)
Citation (search report)
- [A] US 5237833 A 19930824 - HAYASHIDA NORIAKI [JP], et al
- [A] CN 104748239 A 20150701 - GUANDONG MIDEA HVAC EQUIPMENT, et al
- [A] EP 2905552 A1 20150812 - MITSUBISHI ELECTRIC CORP [JP]
- See references of WO 2018049722A1
Designated contracting state (EPC)
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 state (EPC)
BA ME
DOCDB simple family (publication)
EP 3517848 A1 20190731; EP 3517848 A4 20191009; EP 3517848 B1 20200624; CA 3037194 A1 20180322; CN 106440455 A 20170222; CN 106440455 B 20190430; US 2019212024 A1 20190711; WO 2018049722 A1 20180322
DOCDB simple family (application)
EP 16916102 A 20161104; CA 3037194 A 20161104; CN 2016104675 W 20161104; CN 201610832075 A 20160919; US 201916357104 A 20190318