Air conditioner outdoor unit, refrigerant charging control method for air conditioner
An air conditioner outdoor unit and refrigerant technology, which is applied to the refrigerant charging control of air conditioners and the field of air conditioner outdoor units. It can solve the problems that the refrigerant cannot be guaranteed to be consistent and affect the use effect and service life of the air conditioning system, so as to reduce the refrigerant calculation process and ensure reliability. Performance and use effect, the effect of accurate filling
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example 1
[0074] Such as Image 6 As shown, the refrigerant charging control method may include the following steps:
[0075] Step S101, detecting the refrigerant balance pressure P1 of the refrigerant circulation system;
[0076] Step S102, obtaining the preset minimum start-up pressure Ps1 corresponding to the outdoor ambient temperature;
[0077] Step S103, judging whether the pressure P1 is greater than or equal to the pressure Ps1; if yes, go to step S105, otherwise go to step S104;
[0078] Step S104, controlling the solenoid valve 1071 to open;
[0079] Step S105, control the solenoid valve 1071 to close, and control the compressor 101 to start cooling operation for 15 minutes;
[0080] Step S106, judging whether the operating high pressure Pc of the refrigerant circulation system is greater than or equal to the preset maximum pressure Ps2 corresponding to the outdoor ambient temperature; if yes, go to step S109, otherwise go to step S107;
[0081] Step S107, judging whether ...
example 2
[0086] Such as Figure 7 As shown, the refrigerant charging control method may include the following steps:
[0087] Step S201, detecting the refrigerant balance pressure P1 of the refrigerant circulation system;
[0088] Step S202, obtaining the preset minimum start-up pressure Ps1 corresponding to the outdoor ambient temperature;
[0089] Step S203, judging whether P1 is greater than or equal to Ps1; if yes, go to step S205, otherwise go to step S204;
[0090] Step S204, controlling the opening of the electronic expansion valve 1073 with an opening degree of 400P;
[0091] Step S205, controlling the electronic expansion valve 1073 to close, and controlling the compressor 101 to start cooling operation for 15 minutes;
[0092] Step S206, judging whether the operating high pressure Pc of the refrigerant circulation system is greater than or equal to the preset maximum pressure Ps2 corresponding to the outdoor ambient temperature; if yes, go to step S209, otherwise go to ste...
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