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Old 07-15-2006, 05:37 AM
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wiring up a/c

Does anyone have a link that shows a basic wiring setup for an airconditioning installation ? I have not been able to locate a schematic,thanks Johnny

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Old 07-21-2006, 07:10 AM
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a/c

Anyone ??? Im pretty sure I can wing this but just wanted to double check I was in the right direction by looking at a schematic,thanks in adavnce.Johnny
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Old 07-21-2006, 07:15 AM
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Vintage Air has downloads available for their systems

That might help

What kind of unit is it---If we knew what kind, it would be more helpful

Bryan
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Old 07-21-2006, 07:30 AM
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Okay,my fault.Its actually a mercedes benz.I have an intact system that when I bypass the silly (and very expensive climate control relay ) it blows cold air.I bought an aftermarket capillary temp control swith from oldair products down in Texas.My plan is to install the capillary in to the evaporator,run 12v to the capillary temp control then run the other side of the of the switch to the now removed a/c relay (190 us dollars) I think I will have no problem basically the new a/c switch temp control will take place of the relay and give temp control and power to the a/c clutch.The low temp /high press cutout and fan control is in series after the relay so that is still intact giving me my factory safetys and cutouts.How does all this sound ?I think it will work fine just wanted to look at a basic schematic to verify I hadnt missed anything,would appreciate any input you could share,thanks Johnny
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Old 08-08-2006, 08:03 PM
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I'd take a look at the info in the forums on www.ackits.com.

The wiring is a little different depending on what type of A/C setup you have. On my '75 Chevy with a Cycling Clutch Orifice Tube system, the A/C controls on the dash send power through the AC low pressure switch and through the temp sensor in the evaporator. If the AC pressure is above about 35 psi and the temp sensor is above about 35 degress, it turns the compressor on. The temp sensor in the evaporator cycles the compressor on and off to keep the evaporator from icing up. The temp control in the dash just mixes cold air from the evaporator with warm air from the heater core to adjust the temp.

Bruce
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