[DeTomaso] A/C pressure switch

[forestg at att.net]

One pair goes in series with the relay for the compressor clutch and the other pair parallels the condenser fan relay. The switch will stop the compressor on either low or high pressure, the other switch starts the condensor fan on medium high pressure. Unfortunately I don,t know which pair is which. You can tell with a continuity test once the system has a gas charge. The pair for the compressor will show a closed contact and the fan circuit will be open.
Forest

-------------- Original message from mikeldrew at aol.com: -------------- 


> Thomas wrote, 
> 
> How many connectors are there on the switch? If only two, just put the 
> switch in 
> series with the coil of a relay which you connect in series with your 
> AC control 
> signal. This is how mine is wired if you remember how that looked. 
> 
> >>>This sucker has four wires coming out of it, paired up, two blue, 
> two black.... 
> 
> Mike 
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