Air-conditioning apparatus having an indication apparatus

• US 10,443,886 B2
• Filed: 03/12/2014
• Issued: 10/15/2019
• Est. Priority Date: 06/25/2013
• Status: Active Grant

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Suzuki, Yasuhiro
• Primary Examiner(s): Jules, Frantz F
• Assistant Examiner(s): Nieves, Nelson J
• Application Number:
  US14/889,492
• Publication Number:
  US 20160084519A1
• Time in Patent Office: 2,043 Days
• CPC Class Codes: F24F 1/0003 characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
• CPC Class Codes: F24F 1/0076 by electric means, e.g. ionisers or electrostatic separators
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/36 to leakage of heat-exchange fluid
• CPC Class Codes: F24F 11/52 Indication arrangements, e.g. displays
• CPC Class Codes: F24F 13/20 Casings or covers
• CPC Class Codes: F24F 13/32 Supports for air-conditioning, air-humidification or ventilation units
• CPC Class Codes: F25B 13/00 Compression machines, plants or systems, with reversible cycle defrosting cycles F25B47/02
• CPC Class Codes: F25B 2400/12 Inflammable refrigerants

Abstract

An indoor unit of an air-conditioning apparatus includes a housing, an indoor heat exchanger that is disposed in the housing and to which flammable refrigerant is supplied, and an indication section that indicates a minimum distance from a floor surface of the housing when installed on a wall of a room (installation height H0) along with an identifier on a lower surface of the housing.

Claims

1. A split type air-conditioning apparatus comprising an indoor unit and an outdoor unit,

the indoor unit including:

a housing;

an indoor heat exchanger being disposed in the housing and to which flammable refrigerant is supplied;

a casing being disposed in the housing and covering an air-sending device;

an air inlet formed on a bottom of the housing;

an air inlet cover that openably covers the air inlet; and

an indication section indicating one or both of an installation height stipulated for a type of the indoor unit installed in a room, and an available floor area in the room on a basis of the refrigerant filling level of the air-conditioning apparatus,

wherein

the indoor unit is configured to be mounted on the ceiling,

the indication section is provided on the casing at a position that is capable of being visually observed through the air inlet formed on the bottom of the housing from an outside when the air inlet cover is opened.

2. The air-conditioning apparatus of claim 1, wherein the indication section has embossing or debossing indication or printing indication.

3. The air-conditioning apparatus of claim 2, wherein the indication section is permanently attached.

4. The air-conditioning apparatus of claim 1, wherein the refrigerant is R32 (CH₂F₂, difluoromethane), which is HFC refrigerant, HFO-1234yf (CF₃CF═

CH₂, tetrafluoropropene), or HFO-1234ze ((CF₃—

CH═

CHF).

5. The air-conditioning apparatus of claim 2, wherein the indication section is removably attached.

6. The air-conditioning apparatus of claim 1, wherein the indoor unit further includes an identifier having a description of at least one of a model of the air-conditioning apparatus and a name of the refrigerant, and

wherein the indication section and the identifier are aligned.