Description
The Johnson Controls P70LN-8 is a dual pressure control switch is based on full commercial use for the HVAC systems which utilize R-502 refrigeration. Unlike other pressure controls that are typically much larger, this is a single unit that serves two purposes thus making installation less complicated also occupies less space in the apparatus. A switch is expected to observe low-pressure situations and operating range of 12-80” of water gauge (in WG). The other switch controls pressure regulation at high pressure with the pressure range of 100 to 425 psi. They are both “open-low” switches as well. A 36” capillary tube also enables the pressure sensors to be positioned away from the R-502 system.
