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Air Conditioning Troubleshooting Help

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
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STSCowboy
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Year and Model: 2006 V70 2.5T
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Re: Air Conditioning Troubleshooting Help

Post by STSCowboy » Wed Oct 09, 2019 10:30 am

You are correct, that’s why I’m trying to find the maximum pressure these units can withstand. It “seems” to be working perfectly from my past experience but I do not want to exceed the systems capability.


2006 V70 2.5T Geartronic Silver Black Leather 131,000 Miles

jimmy57
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Re: Air Conditioning Troubleshooting Help

Post by jimmy57 » Wed Oct 09, 2019 3:34 pm

The maximum pressure is about 425 as the ECM will shut off compressor at that pressure. Some compressors have a blow off valve that dumps refrigerant at 440 psi



STSCowboy
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Joined: Sun Oct 06, 2019 1:25 am
Year and Model: 2006 V70 2.5T
Location: San Diego
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STSCowboy

Re: Air Conditioning Troubleshooting Help

Post by STSCowboy » Wed Oct 09, 2019 4:29 pm

Ok, that’s good to know. That way if I notice that the cooling has diminished as engine speeds increase I’ll know I’ve exceeded the pressure limits of the system. I think I’m good to go because the outside temp of the engine compartment was obviously higher than my interior 85*F temps before I turned on the AC.


2006 V70 2.5T Geartronic Silver Black Leather 131,000 Miles

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