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SportTrac Discussion
General Sport Trac Discussion
What is the Low Pressure AC switch operating range
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<blockquote data-quote="Phil Frady" data-source="post: 965557" data-attributes="member: 55634"><p>Based on what you have stated, your system is functioning correctly. I would ask you, what is the cycle time which would actually tell alot more.</p><p></p><p></p><p></p><p>In a nutshell:</p><p></p><p>When you turn on your A/C, the compressor turns on (the click you hear) and the low side starts slowly going down till you say 25psi (low pressure switch), while the high side gets higher. Your compressor will then cut off and and both sides try to equalize again untill the low side gets to 70psi and turns the compressor back on.</p><p></p><p></p><p></p><p>If your low on re-frigerant, then the clicking will happen like every 10-20sec. If you have a good amount of re-frigerant, then it will be in the neighborhood of 1minute between click's. It is possible to over charge and defeat the purpose.</p><p></p><p></p><p></p><p>With Max-A/C selcted and the fan turned on High while another fan is blowing air into your radiator, you should see a temperture of 30degF coming out of your vents and in some cases 27.</p></blockquote><p></p>
[QUOTE="Phil Frady, post: 965557, member: 55634"] Based on what you have stated, your system is functioning correctly. I would ask you, what is the cycle time which would actually tell alot more. In a nutshell: When you turn on your A/C, the compressor turns on (the click you hear) and the low side starts slowly going down till you say 25psi (low pressure switch), while the high side gets higher. Your compressor will then cut off and and both sides try to equalize again untill the low side gets to 70psi and turns the compressor back on. If your low on re-frigerant, then the clicking will happen like every 10-20sec. If you have a good amount of re-frigerant, then it will be in the neighborhood of 1minute between click's. It is possible to over charge and defeat the purpose. With Max-A/C selcted and the fan turned on High while another fan is blowing air into your radiator, you should see a temperture of 30degF coming out of your vents and in some cases 27. [/QUOTE]
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SportTrac Discussion
General Sport Trac Discussion
What is the Low Pressure AC switch operating range
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