AERCO Boiler and Water Heater 27128-1 Pressure Switch Kit R-134A then firmly press the manual

then firmly press the manual reset button located on the top of the housing

streamlining HVACR maintenance workflows

this specific model is designed for hot and chilled water systems only

This HVAC power relay is versatile and used across both heating and cooling platforms

AERCO Boiler and Water Heater 27128-1 Pressure Switch Kit R-134A then firmly press the manualAERCO 27128 1 Low Pressure Gas Switch Kit is built for dependable gas pressure monitoring in commercial boiler and water heater systems. This boiler low gas pressure switch interrupts the control circuit if inlet gas pressure drops below the set point, helping prevent improper combustion and unsafe operation. Designed for use with AERCO boilers and water heaters, it supports stable ignition and protects critical components in hydronic heating