Multisplit-Klimaanlage

Details

Veröffentlichungs-Nr.

EP2535669

Aktenzeichen

EP12171591

Anmeldetag

12. Juni 2012

Veröffentlichung

16. April 2014

Rechtsraum

EP

IPC

F25B13/00F25B45/00

Abstract

Provided is a multi-split type air conditioning system AC in which a plurality of indoor units 30 are connected in parallel, and which comprises a receiver 20 installed upstream of an outdoor heat exchanger 12 that serves as an evaporator in heating operation; and an outdoor unit electronic expansion valves 21 installed between the receiver 20 and the outdoor heat exchanger 12, wherein a control unit 50 is provided with an in-heating-operation opening degree control mode for controlling the outdoor unit electronic expansion valve 21, the in-heating-operation opening degree control mode comprising an open-loop control that performs an operation for a predetermined time period with an outdoor unit electronic expansion valve interim opening degree set corresponding to the actual number of rotation of a variable-power operated type compressor 11 determined by the number of the indoor units 30 being in operation and outdoor air condition; and an outdoor air temperature, a total heat exchange capacity value of the indoor heat exchangers 31, a number of indoor heat exchangers 31 that are stopped, suction superheating and discharge superheating of the variable-power operated type compressor 11 are employed as parameters for calculating the outdoor unit electronic expansion valve interim opening degree.

Anmelder

Firmen

MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
Mitsubishi Heavy Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete