Detecting method for composite air conditioner error connection line and distributing tube temperature sensor imperfect
A detection method and piping temperature technology, which is applied in thermometer testing/calibration, testing of machines/structural components, thermometers, etc., can solve problems such as inability to accurately detect refrigerant temperature, failure to provide additional prompts for control methods, etc., to prevent excessive driving effect
Inactive Publication Date: 2010-07-07
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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Problems solved by technology
[0012] In addition, a temperature sensor is installed in the indoor unit 9. The temperature sensor is used to detect the temperature of the refrigerant piping connected to the indoor heat exchanger 5. The control unit will not be able to accurately detect the temperature of the refrigerant in the indoor heat exchanger 5
[0013] And, in the state where the temperature sensor in the above-mentioned indoor heat exchanger 5 is wrongly connected, the control method for detecting the above-mentioned wrongly installed state cannot be additionally prompted.
[0014] This shows that above-mentioned existing composite air conditioner still has many defectives, and Cheng waits to be improved
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[0039] Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, features and effects of the present invention will be described in detail as follows.
[0040] ***Description of symbols in the main parts of the drawings***
[0041] 11, 12, 13, 14: indoor unit 21, 22: outdoor unit
[0042] 51: Indoor heat exchanger 54: Indoor electronic expansion valve
[0043] 55, 56, 57, 58: Room temperature sensor
[0044] 61: Accumulator 62: Reversing compressor
[0045] 63: Fixed speed compressor 64: Oil separator
[0046] 65: Square valve 66: Capillary
[0047] 70: Outdoor heat exchanger 74: Outdoor electronic expansion valve
[0048] 80: Subcooler 82: Subcooler
[0049] 84: bypass pipe (bypass) 85: check valve (check valve)
[0050] 86: Electronic expansion valve 87: Recovery piping
[0051] 90: Liquid injection device
[0052] 101, 102, 103, 104, 105, 106: temperature sensor
[0053] 108, 109, 118, 119, 128, 129, 138...
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The method includes following method: composition type air conditioner carries out operation for cooling room and heating room; comparing temperature difference between temperature received by indoor temperature sensor installed in an indoor machine and temperature received by piping temperature sensor in an indoor heat exchanger; if the temperature difference obtained from the compared result iswithin an established temperature, then comparing temperature difference between temperature received by indoor temperature sensor installed in an indoor machine from the other indoor machines and temperature received by piping temperature sensor installed in an indoor machine from the other indoor machines; checking and validating error connection states of communication lines in order to prevent defective mode, which can cause over driving compressor in outdoor machine, of piping temperature sensor in advance.
Description
technical field [0001] The present invention relates to a detection method of a composite air conditioner, more specifically to a composite method for comparing the temperature difference between the indoor piping temperature sensor and the indoor temperature, and judging the wrong connection state of the communication line and the defective state of the piping temperature sensor. Inventions on the detection method of incorrectly connected wires of type air conditioners and the detection method of defective piping temperature sensors of air conditioners. Background technique [0002] A conventional hybrid air conditioner is composed of one or more outdoor units and a plurality of indoor units, and the plurality of indoor units and the outdoor units are connected through refrigerant piping. [0003] Figure 5 It is a simple structural diagram of the outdoor unit of the composite air conditioner in the prior art; Figure 6 It is a simple structure diagram of wrongly connected...
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IPC IPC(8): G01M19/00G01R31/00G01K15/00F24F5/00G01M99/00
Inventor 李俊硕
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD