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The answer to this question is dependent upon several factors. What is the indoor temp, outdoor temp, indoor humidity, etc. This cannot be answered properly without measuring the temperature inside and outside the house. Generally the lowside is 68-85 psi and the highside is 225-300 psi.

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โˆ™ 2005-11-10 18:12:35
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Q: What are the correct high and low readings for r-22 pressures?
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