四通回动阀
The utility model relates to an end-face sealed manual three-position four-way reversing rotary valve.
本实用新型涉及一种端面密封手动三位四通换向转阀。
The result shows that the defrosting period of machine with electronic expansion valve is 12 seconds or 11% shorter than that with thermal expansion electronic valve, so suggests integrating both two methods by using the electronic expansion valve and defrosting by reversing four-way valve with compressor off.
结果表明:采用电子膨胀阀的除霜时间比热力膨胀阀的短12s,即减少11%。
The check is in the series of coil and four-way reversing valve control relay contact resistance increases, the bad, the contacts the voltage reduced.
经查是与四通阀线圈串联的控制继电器触点接触不良,电阻增大,致使电压降低。
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