Schneider Electric (Barber Colman) 2354-504 Relay Refrigerant It is often paired with

It is often paired with an upper fitting (such as the SA259-24) to complete the bypass loop required for many mechanical water feeders and cut-offs

including certain Heil and Tempstar units

While primarily designed for room air conditioners and beverage coolers

ensuring that the root cause of the overheat—such as a failed blower motor

this genuine OEM HVAC pressure switch is a direct drop-in for numerous Trane and American Standard rooftop units

Schneider Electric (Barber Colman) 2354-504 Relay Refrigerant It is often paired withThe Schneider Electric (Barber Colman) 2354 504 Relay is a rugged, snap acting pneumatic diverting relay engineered for precise signal routing in demanding pneumatic control systems. This heavy duty DPDT switching module is a staple for service contractors managing complex sequences where dual circuit control is required. Factory calibrated for an 18 22 psig setting (with operational logic shifting at 16 19 psig thresholds), the 2354 504 ensures