Description
The Johnson Controls P70MA-29 is a ultral Single Pole Single Throw (SPST) Dual Pressure Control aimed at those HVAC systems that have sensitivity to pressure variations and need to be monitored and controlled. To accomplish this, it has two pressure settings: 20 – 100 PSI (named low), and 100 – 425 PSI (named high). Amalars Interestingly it also comes with a complex manual reset feature. This is placed in HVAC systems including refrigeration systems and air compressor systems; it is used to regulate pressure. The manual reset enhances operational safety and reliability because operating pressures can be easily interrupted in case of pressure fluctuations.
