Low Air Pressure Switch

The switch marked with the word low is set to operate at a pressure decrease of 10 psi 7 bar at 30 psi 2 1 bar.

Low air pressure switch.

An air switch senses positive negative or differential air pressure and actuates an internal switch. Its main job is monitor the pressure of the refrigerant on both the low and high pressure sides of the system. 3 9 out of 5 stars 5. Only leaking air conditioning systems have low refrigerant levels.

If the pressure is tool low then the risk is that the compressor can burn out. Cdn 39 78 cdn 39. Rely on grainger for a wide range of duct pressure switch options. Fanwayer air pressure switch 90 120 psi pressure switch 1 4 18 npt dc 24v 12v pressure switch air compressor pressure switch 90 psi pressure switch 120psi pressure switch.

4 6 out of 5 stars 46. 1 16 of over 5 000 results for low air pressure switch lefoo lf08ps multipurpose vacuum pressure switch low high pressure switch 10 40psi used in air condition refrigeration water oil lubricant. This is actually very important because if the pressure is too low or too high it can cause serious damage to the ac system. 55 1 57 oz 34 29 34 29.

An automotive air conditioner s pressure switch cycles the vehicle s compressor on and off when the refrigerant pressure falls below an acceptable level. The low pressure indicator is installed in the truck s service brake system. Get it as soon as fri sep 25. Square d by schneider electric fsg2j24m4cp 40 60 psi pumptrol water pressure switch with low pressure cut off 4 5 out of 5 stars 399 27 55 27.

Duct pressure switches automatically start and stop auxiliary devices like electronic air cleaners duct heaters humidifiers exhaust fans and duct booster fans. When air pressure falls below a predetermined minimum the switch will close to turn on a warning buzzer and or lamp. The ps40 switch is factory set for 40 psi 2 8 bar normal system pressure. Refrigerant does not wear out or evaporate.