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Method for improving operation of split variable frequency air conditioner
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A technology of inverter air conditioners and air conditioners, which is applied in heating methods, space heating and ventilation, lighting and heating equipment, etc. Effect
Inactive Publication Date: 2020-08-14
NANJING TICA AIR CONDITIONING CO LTD
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[0006] The purpose of the present invention is to provide a method for improving the operation of the split frequency conversion air conditioner in view of the deficiencies of the prior art, which can solve the problem that the air conditioner is in the patent mode and the unit frequently Protect the problem of shutdown without affecting the cooling effect under normal conditions
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Embodiment 1
[0027] Embodiment one, such as figure 1 shown.
[0028] A method for improving the operation of a split inverter air conditioner, comprising the following steps:
[0029] 1) The air conditioner unit starts up and runs in cooling mode;
[0030] 2) Detect the temperature T of the air inlet of the external unit 环 ;
[0031] 3) 3 minutes after starting up, detect the high pressure P of the system;
[0032] 4) Judgment: If T 环 ≥T0, and P≥P0, go to step 5); otherwise, go to step 9);
[0033] 5) Reduce the frequency-limiting point of unit exhaust temperature by △t1;
[0034] 6) If shutdown, go to step 7); otherwise, go to step 10);
[0035] 7) Reduce the frequency limit point to △t2 on the basis of △t1; where: △t 2 ≤△t 1 ;
[0036] 8) Stop correction, go to step 1);
[0037] 9) The unit runs according to the original program;
[0038] 10) The unit runs according to the current program.
Embodiment 2
[0039] Embodiment two, such as figure 2 shown.
[0040] A method for improving the operation of a split inverter air conditioner, comprising the following steps:
[0041] 1) The air conditioner unit starts up and runs in cooling mode;
[0042] 2) Detect the temperature T of the air inlet of the external unit 环 ;
[0043] 3) 3 minutes after starting up, detect the high pressure P of the system;
[0044] 4) Judgment: If P≥P0, and the reason for the last protection shutdown was that the exhaust temperature was too high, go to step 5); otherwise, go to step 9);
[0045] 5) Modify the frequency reduction rate of protection from f to f1; where: f 1 ≤f / 2;
[0046] 6) If shutdown, go to step 7); otherwise, go to step 10);
[0047] 7) Modify the frequency reduction rate of protection from f1 to f2; where: f 2 ≤f 1 / 2;
[0048] 8) Stop correction, go to step 1);
[0049] 9) The unit runs according to the original program;
[0050] 10) The unit runs according to the current ...
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Abstract
The invention relates to a method for improving operation of a split variable frequency air conditioner. The method comprises the following steps that 1) an air conditioner unit is started, and refrigeration is carried out; 2) outdoor unit air inlet temperature T <environment> is detected; 3) after starting is carried out for 3 minutes, systemhigh voltage P is detected; 4) judgment is carried out, specifically, if the T <environment> is greater than or equal to T0 and P is greater than or equal to P0, or if P is greater than or equal to P0 and the last protection shutdown reason is that the exhaust temperature is too high, step 5) is carried out, otherwise, step 9) is carried out; 5) the limited frequency reduction point of the unit exhaust temperature is reduced by delta t1, or the protection frequency reduction rate is corrected from f to f1, wherein f1 is smaller than or equal to f / 2; 6) if shutdown is performed, step 7) is carried out, otherwise, step 10) is carried out; 7) the limited frequency reduction point is reduced by delta t2 on the basis of delta t1, or the protection frequency reduction rate is corrected from f1 to f2, wherein the delta t2 is smaller than or equal todelta t1, f2 is smaller than or equal to f1 / 2; 8) correction is stopped and the step 1) is carried out; 9) the unit operates according to an original program; and 10) the unit operates according to apresent program.
Description
technical field [0001] The invention relates to an air conditioner control method, in particular to a control method for a split frequency conversion air conditioner, specifically a method for improving the operation of the split frequency conversion air conditioner. Background technique [0002] If the split-type air conditioner is installed in an outdoor high-temperature area in summer, and the installation space is small and the air inlet and outlet are not smooth, the exhaust temperature will rise rapidly during cooling operation and the unit will stop frequently, which will affect the comfort of users. [0003] The current conventional processing method is: set the discharge limit frequency reduction and shutdown temperature parameter points, and when the exhaust gas temperature rises rapidly to the corresponding temperature, the unit will perform the limit frequency reduction and shutdown actions. However, this approach has the following drawbacks: [0004] ① The air ...
Claims
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Application Information
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