low pressure switch

Low pressure switchPressure switches are simple devices installed on most Commercial A/C, refrigeration units and some residential units,  But they are a life saver and can save a Homeowner a ton of money.  A low pressure switch shuts unit off in case of a loss of charge and Freeze ups due to same condition, high pressure switches Shut off unit if a fan motor or coil plugs up.  The end result is the compressor is saved, make sure they are included on your unit, very simple to install and save a bunch later

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