AERCO Boiler and Water Heater 18557-1 Tstat 326058-758 Direct OEM Match: Fully compatible

Direct OEM Match: Fully compatible with Lochinvar and A

this HVAC pressure switch prevents the operation of the heating system under unsafe drafting conditions

featuring a large internal free volume that effectively mitigates the risk of liquid hammering

Operating at 125V (115VAC nominal) and designed for 60Hz cycles

ensuring standardized fitment and performance in Carrier

AERCO Boiler and Water Heater 18557-1 Tstat 326058-758 Direct OEM Match: Fully compatibleThe AERCO 18557 1 Pneumatic Bulb Thermostat is a critical OEM replacement part designed specifically for AERCO boiler and water heater systems. This RA 20 240 thermostat utilizes advanced pneumatic sensing technology to ensure the precise temperature regulation required for commercial heating environments. By providing dependable sensing through its bulb style design, the 18557 1 Tstat maintains peak efficiency and prevents the energy waste associated