this low water cut-off for boilers ensures reliable secondary protection and code compliance in a minimal footprint

For legacy PA or PV models

specifically during low-load conditions or defrost cycles in heat pump applications

How do I calibrate the T-4100-1 for specific branch line sensitivity

this manual reset rollout switch is the standard OEM replacement for most furnaces under the Johnson Controls umbrella

Johnson Controls A28AK-1 Temperature Control Els PW 29614 this low water cut-off forJohnson Controls A28AK 1 Temperature Control, Two Stage, 120 208 240 277 Vac, Flange Mounted, Two SPDT Switches, 30 110 Degree Setpoint Range, 2 Degree Differential Each Stage and 3 Degree Differential Between Stages, Knob Range Adjuster