When used as a main burner regulator

Double-Throw) is designed to manage both heating and cooling applications

Durable Construction: The bronze boiler valve body and corrosion-resistant internal components handle high-temperature steam cycles without degradation

With multiple built-in connectors

It is used in closed-loop hydronic systems where the control must monitor liquid temperature

Johnson Controls P70LA-1 Pressure Control Refrigerant When used as a mainThe Johnson Controls P70LA 1 is a professional grade Dual Pressure Control engineered specifically for high reliability commercial refrigeration and HVAC compressor protection. This SPST (Single Pole Single Throw) unit integrates both high side and low side monitoring into a single device, streamlining field installation for contractors. The low side range covers 20 to 100 psi, while the high side range spans 100 to 425 psi, providing robust safety