air conditioner

A technology for air conditioning and flow conditioning devices, which is applied in air conditioning systems, high-efficiency conditioning technology, climate sustainability, etc., and can solve problems such as being unable to drive multiple valve devices at the same time.

Active Publication Date: 2017-11-17
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The valve control loop cannot drive multiple valve devices at the same time, but sets the time difference to send the driving signal to the valve device

Method used

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Examples

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Embodiment Construction

[0031] figure 1 It is a schematic diagram showing the embodiment of the air-conditioning apparatus of the present invention, with figure 1 An installation example of the air-conditioning apparatus 100 will be described. This air-conditioning apparatus 100 has a refrigeration cycle that circulates a refrigerant, and each of the indoor units 2a to 2d can freely select a cooling mode or a heating mode as an operation mode. The air conditioner 100 has a refrigerant circulation circuit A (refer to figure 2 ) and the heat medium circulation circuit B, in the refrigerant circulation circuit A, single refrigerants such as R-22, R-32, R-134a, etc., R-410A, R-404A, etc. Refrigerants, non-azeotropic mixed refrigerants such as R-407C, CF containing double bonds in the chemical formula 3 CF=CH 2 Refrigerants, mixtures thereof, or CO 2 , propane and other natural refrigerants, and in the heat medium circuit B, water or the like is used as the heat medium.

[0032] The air-conditionin...

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PUM

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Abstract

An air-conditioning apparatus includes actuation control means including an actuation unit that sequentially opens heat medium flow switching devices or heat medium flow control devices on a one-by-one basis. The actuation control means performs control in such a manner that start time of driving of pumps is later than start of actuation of the heat medium flow switching devices and the heat medium flow control devices.

Description

technical field [0001] The present invention relates to an air-conditioning apparatus suitable for use in, for example, multi-connected air-conditioning units for buildings and the like. Background technique [0002] Among air-conditioning apparatuses, there is an air-conditioning apparatus in which a heat source unit (outdoor unit) is arranged outside a building and an indoor unit is arranged inside a building, such as a multi-connected air-conditioning unit for a building. The refrigerant circulating in the refrigerant circuit of the air-conditioning apparatus heats or cools the air by radiating heat (absorbing heat) to the air supplied to the heat exchanger of the indoor unit. Then, the heated or cooled air is sent into the air-conditioned space for heating or cooling. [0003] In such an air-conditioning apparatus, since a building generally has a plurality of indoor spaces, correspondingly, a plurality of indoor units are also configured. In addition, when the scale o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/02F24F5/00
CPCF24F5/001F25B49/02F24F11/83F24F11/84F24F11/85F24F3/065F25B13/00F25B25/005F25B2313/006F25B2313/023F25B2313/0231F25B2313/0272F25B2313/02743F25B2600/13F25B2600/23F25B2600/2513F25B2600/2515F25B2700/1931F25B2700/1933Y02B30/70F25B31/02
Inventor 岛本大祐本村祐治森本修本多孝好小野达生西冈浩二
Owner MITSUBISHI ELECTRIC CORP
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