Low Pressure Cutoff Switch Hvac

There is a high side pressure switch and low side pressure switch and they both serve to monitor the system for pressure faults that can damage the compressor.

Low pressure cutoff switch hvac.

When it is too high the compressor is at risk of overheating and becoming damaged. Low refrigeration pressure switches the low pressure switch is typically an automatic reset switch that will reset itself when the pressure on the low pressure side of the refrigeration systems returns to normal or above the setting on the switch. Direct mount low pressure switches direct mount low pressure switches are designed with a snap acting sensor that opens on low pressure. When the pressure is too low the compressor risks damage due to running with low oil.

There are both high pressure and low pressure switches. The a c pressure switch is mounted on both the high and low sides of your a c. When the pressure in your a c rises or lowers too much this switch turns off the compressor to protect it and the rest of the system from damage. Ac not blowing cold in this video we will explain what the a c pressure switch is for and how a bad faulty ac pressure switch m.

Universal mount single pressure controls. The switch is a texas instruments ps80 02 f1009 015 005. Again this is a symptom that should be easy to pick up if you are used to the way that your ac system operates. What you will notice with this symptom though is that this cut off will happen far.

This switch is crucial for proper a c performance. Incorrect pressure can damage the compressor hoses and other a c system components. Use with hvac compressors to protect against loss of refrigerant or from excessive system pressure. The compressor is external and i did not notice until recently that the cut off switch was not opening on pressure drop and the compressor was running constantly.

This is because most ac systems will automatically cut off for periods of time usually when the cabin temperature reaches what you have entered into the ac settings. Some vehicles are equipped with just a high pressure switch while others have both. What ac pressure switch does.