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Defeating Air Conditioner 700 1990

posted by  HowdyPete on  Fri Apr 16 04:56 CST 2004
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last visit: Mon Oct 28 10:03 CST 2013
[RELATED]

1990 740 GL Sedan automatic, no operator-controlled temperature setting on the air conditioning.

There are many times in stinky Los Angeles when I want interior air, but I don't want the air conditioner on. I wish my Volvo had a A/C on-off switch. With the A/C off, I could move the vent sliders to Max A/C to get recycled air without activating the A/C system.

I'd like to install a switch on the dash that defeats/allows the A/C system, regardless of the setting of the vent control sliders. Ideally, I would intercept one wire in the dash, wiring it to a simple on-off switch. Could it really be this simple? If so, which wire? Also, is the any chance of damaging any A/C system components when using such a switch? Thanks!






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