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Old 07-17-2016, 06:19 PM   #1
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Country Coach Air Conditioning

Curious about air conditioning. 6 psi. The otr ac is a bit light. Charging the system. Must be an easy process?

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Old 07-17-2016, 09:34 PM   #2
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You lost me and I've done a fair amount of automotive AC work in my time. Can you explain better what you have and what you want to do?


2007 Winnebago View 523H, 2006 Dodge (Daimler-Chrysler aka Mercedes) Sprinter 3500 chassis. Bought Sept 2015 with 18K miles, Prog Ind HW30C, Prog Dynamics PD4645, Chill Grille, Fanstatic Fan Ultrabreeze, PML/Yourcovers.com deep alum trans pan, Roadmaster sway bar
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Old 07-18-2016, 04:52 AM   #3
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I think he is asking how to charge his over the road a/c
1998 36ft Country Coach Magna #5499
Gillig chassis with a Detroit series 40
2002 F250 CC 7.3 PSD
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Old 07-18-2016, 05:16 AM   #4
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If you are asking what refrigerant charge is recommended for your automotive AC, my Allure has a sticker on the hydraulic fluid reservoir in the engine compartment with that info. Mine says 6.0 lbs.
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
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Old 07-18-2016, 05:45 AM   #5
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Well, what was asking and did certainly not explain myself was, the refrigerant recommended is the 134. Now when the gauge is on the blue valve without the compressor running the pressure is about 65lbs. Is this normal? Then with compressor running and a/c cranked to max the pressure is about 4lbs. I'm guessing I should add a bit of refrigerant?
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Old 07-18-2016, 07:49 AM   #6
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That all depends on ambient temperature.

There are charts based on type that show based on ambient temp what the static send running pressures should be.

You are connected to low side so it will drop when running.

To be best served you need booth high and low side pressures along with ambient temperature.

Also confirm your water flow valve is fully shutting off.
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Old 07-18-2016, 09:38 AM   #7
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At 80F I'm at about 30/180


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