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Multitube variable frequency multi-split air conditioner self-inspection method

A multi-air conditioner and multi-control technology, which is applied in heating methods, space heating and ventilation, heating and ventilation control systems, etc., can solve the problems of low efficiency of manual detection of multi-control frequency conversion, one drag and more air conditioners, and achieve the goal of improving accuracy Effect

Active Publication Date: 2016-12-21
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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Problems solved by technology

[0004] In order to solve the technical problem of low manual detection efficiency of the existing multi-control frequency conversion one-drag multi-air conditioner, the present invention proposes a multi-control frequency conversion one-drag multi-air conditioner self-inspection method, which can solve the above problems

Method used

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  • Multitube variable frequency multi-split air conditioner self-inspection method

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Embodiment 1

[0046] Embodiment 1, this embodiment proposes a self-inspection method for multi-control frequency conversion one-drag multi-air conditioner, such as figure 1 As shown, it is a schematic diagram of this multi-control frequency conversion one-drag multi-air conditioning system, including one outdoor unit and several indoor units, such as figure 2 As shown, the multi-control frequency conversion one-drag multi-air conditioner self-inspection method in this embodiment includes the following steps:

[0047] Steps to calculate self-test running parameters, including:

[0048] Calculate the compressor frequency corresponding to the self-test operation of each online indoor unit; due to the variety of indoor unit capacities, the self-test frequency of the indoor compressors with different capacities is different during the self-test, and the specific frequency is determined according to the capacity experiment of the model. The detection accuracy can be improved.

[0049] Calculat...

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Abstract

The invention discloses a multitube variable frequency multi-split air conditioner self-inspection method. The multitube variable frequency multi-split air conditioner self-inspection method comprises the following steps of computing of self-inspection operation parameters and self-inspection, wherein the self-inspection steps comprises the substeps that (1) an air conditioner is controlled to start the self-inspection mode; (2) all online indoor units are forcefully started in sequence and operated for set time; (3) the current outdoor environment temperature is detected, and the indoor unit air speed corresponding to the current outdoor environment temperature is looked up from a compressor frequency-outdoor environment temperature lookup table; and (4) an indoor unit is operated at low air speed after startup; (5) the liquid pipe temperature T'liq and coil temperature T'coil of the an indoor unit operating currently are detected; (6) whether abnormality exists or not is judged; and (8) judgment results are displayed. The multitube variable frequency multi-split air conditioner self-inspection method has the advantages and positive effects that the online indoor units can be accurately inspected, the failed unit can be accurately determined when a failure occurs, and the accuracy of inspection is improved.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a self-inspection method for a multi-control frequency conversion one-drag multi-air conditioner. Background technique [0002] At present, there are more and more high-rise buildings in China, and the installation space of outdoor units is limited. However, multi-control frequency conversion, one drag and more, can meet the needs of consumers with multiple air conditioners due to its excellent performance. The installation of multi-control one-to-many products is similar to household one-to-one products. Each indoor unit corresponds to one connection line and one pair of connection pipes for the outdoor unit. The installation of the online pipe and the online line needs to correspond to the electronic expansion valve inside the outdoor unit so that the air conditioner can operate normally. However, in the process of air conditioner installation, since it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/52
Inventor 赵站稳
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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