General Assist Technical Reference

AOT30LMAW4 Pressure Switch Values

Pressure Switch A and Pressure Switch B operating thresholds
Use the following pressure switch values when diagnosing the AOT30LMAW4 outdoor unit. The switch opens at the stated high-pressure threshold and returns to normal operation once the pressure falls to the reset threshold.

Pressure switch specifications

Pressure SwitchPart NumberCircuit Turns OFFReturns to Normal Operation
Pressure Switch A Assy93677260284.2 MP or more3.2 MP or less
Pressure Switch B Assy93677270253.7 MP or more2.9 MP or less

How the switches operate

Pressure Switch A
When pressure reaches 4.2 MP or more, the circuit turns OFF. When pressure reduces to 3.2 MP or less, the circuit returns to normal operation (ON).
Pressure Switch B
When pressure reaches 3.7 MP or more, the circuit turns OFF. When pressure reduces to 2.9 MP or less, the circuit returns to normal operation (ON).
Important: The pressure unit is shown as MP in the supplied technical reference. The values above have been reproduced as provided.
Technical reference for AOT30LMAW4 pressure switch operating values.