When the temperature drops to the 26°F setpoint

the Ranco A30-2210 refrigeration control utilizes laser-welded stainless steel bellows for long-term setpoint stability

Balanced Port Construction: Minimizes the impact of varying head pressures on superheat

standard HVAC practice is to inspect the existing limit switch (often part number 626513R) and reuse or replace it separately depending on its condition

the M333A00 utilizes DIP switch selectable control signals

Burnham Boiler 8010801 Aquastat 30067439-890 When the temperature drops toThe Burnham Boiler 8010801 Aquastat is a high limit immersion controller engineered for precision temperature regulation in hydronic heating systems. Calibrated specifically for a 150F temperature setpoint, this OEM component is a critical safety and efficiency device for Burnham Alliance water heaters and compatible boiler configurations. It functions as a single pole, single throw (SPST) switch that breaks the circuit on temperature rise, preventing