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2nd Generation
Icey Reservoir Anyone?
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<blockquote data-quote="Steve@TF" data-source="post: 6619767" data-attributes="member: 40308"><p>The receiver/dryer is not really a filter. It will tend to deposit any solids (assuming they get threw the orifice tube screen and the evaporator) at the bottom of the can, but its really purpose is to remove any moisture by use of a dessicant material and to prevent a slug of liquid refrigerant from going into the compressor. In the latter case, it performs just like the catch cans that people put on their crankcase ventilation system to trap oil solids. That said, R134 mixed with water does not form corrosive acid like R12 did, so R134 systems do not need dessicant in the receiver/dryers. Reference for this is <a href="http://www.v8sho.com" target="_blank">www.v8sho.com</a>, Care and Feeding of the Gen 3 SHO, Air Conditioning, A/C failures and how to prevent them.</p><p></p><p>Ford A/C systems use an orifice tube located in the liquid line. The orifice tube has a screen that acts as a filter for particulates. I am not sure if the expansion valve on the IR also contains a filter. Anyways, particulates in your a/c system means something is failing. Impurities can't get into the a/c system unless it is opened up.</p><p></p><p>The A/C system does have a WOT compressor shutoff. When the computer senses, from the TPS, a WOT condition, the A/C clutch is disengaged. This is because WOT is interpreted as a driver demand for maximum power (say, for passing) and the A/C compressor, when engaged, takes some engine power to operate.</p></blockquote><p></p>
[QUOTE="Steve@TF, post: 6619767, member: 40308"] The receiver/dryer is not really a filter. It will tend to deposit any solids (assuming they get threw the orifice tube screen and the evaporator) at the bottom of the can, but its really purpose is to remove any moisture by use of a dessicant material and to prevent a slug of liquid refrigerant from going into the compressor. In the latter case, it performs just like the catch cans that people put on their crankcase ventilation system to trap oil solids. That said, R134 mixed with water does not form corrosive acid like R12 did, so R134 systems do not need dessicant in the receiver/dryers. Reference for this is [url]www.v8sho.com[/url], Care and Feeding of the Gen 3 SHO, Air Conditioning, A/C failures and how to prevent them. Ford A/C systems use an orifice tube located in the liquid line. The orifice tube has a screen that acts as a filter for particulates. I am not sure if the expansion valve on the IR also contains a filter. Anyways, particulates in your a/c system means something is failing. Impurities can't get into the a/c system unless it is opened up. The A/C system does have a WOT compressor shutoff. When the computer senses, from the TPS, a WOT condition, the A/C clutch is disengaged. This is because WOT is interpreted as a driver demand for maximum power (say, for passing) and the A/C compressor, when engaged, takes some engine power to operate. [/QUOTE]
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Icey Reservoir Anyone?
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