Heat recovery air-cooled heat pump cold and hot water machine and oil return control method thereof
A technology of air-cooled heat pumps and hot and cold water machines, applied in heat recovery systems, machine operation methods, refrigerators, etc., can solve problems such as overheating and demagnetization, lack of oil in the system, and compressor wear, so as to ensure lubrication and safety The effect of reliable operation, accurate and efficient control
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[0031] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.
[0032] The following describes the oil return control method of the heat recovery air-cooled heat pump cold and hot water machine and the heat recovery air-cooled heat pump cold and hot water machine according to the embodiments of the present invention with reference to the accompanying drawings.
[0033] figure 1 It is a schematic diagram of a host system of a heat recovery air-cooled heat pump cold and hot water machine according to an embodiment of the present invention. Such as figure 1 As shown, t
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